Name: R Series Helical Inline Gearbox
Brand: HaoRan Transmission

R series inline helical gearbox, foot-mounted, solid output shaft

Product family

R series · inline helical drive

Motor input and output shaft follow the same centre line.

Coaxial helical gear train
R foot / RF flange forms
Solid output shaft shown

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Core use and layout Mounting forms Technical information Request documents

The R family uses a coaxial helical gear train: motor input and output shaft follow the same centre line. This layout is a practical choice where the driven machine is arranged in line with the motor and the installation benefits from a compact, efficient helical drive.

Select the structure before the designation

Start with the required inline output arrangement, the driven-machine duty and the available service space. A foot or flange arrangement must be confirmed against the installed equipment before order release; frame designation alone is not a dimensional confirmation.

Typical machine context

Typical inquiries include conveyors, mixers, packaging machines and general process equipment where an inline drive path supports the machine layout. The machine-side load, starts and stops, operating environment and access for installation remain part of the selection discussion. If the application has a current reducer, a clear nameplate photo and overall mounting photo are the fastest way to establish the right review path.

Identify the mounting form

R · foot-mounted form

Catalogue view of the R housing and shaft arrangement.

Source: HaoRan catalogue 2026, e-page 8

R: Basic foot-mounted form.
RF: Flange-mounted form.
Frame: Frame designation alone is not a dimensional confirmation.

Technical information and selection details

Current captured catalogue range

Output torque

1–23100 N·m

Ratio

1.3–8784

Motor power

0.12–160 kW

Output speed

0.15–1095 r/min

Ranges summarize the currently captured catalogue rows; they are not manufacturing maxima. Values span different frames and selections, including combined reducers, and are not one unit’s rating. Use the frame tables for the actual selection.

Variant forms

R is the basic foot-mounted form. RF is the flange-mounted form. RX and RXF identify the compact single-stage form and its flange-mounted counterpart. The designations guide the inquiry, while the actual mounting and shaft details remain subject to drawing review.

Catalogue selection tables by frame

The tables below are generated from the confirmed rows of the HaoRan RSKF catalogue. Each frame section is collapsed by default. Use the power filter to reduce the visible rows inside any open table; it does not alter the catalogue source or make a compatibility decision.

Show motor power up to (kW) Ratio group

Frame 17: torque 7–104 N·m; standard and combined selections

Frame 17 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF
Output torque	7–104 N·m
Ratio envelope	3.83–82
Motor power	0.12–0.37 kW
Output speed	11.0–339.0 r/min
Weight	On request

Source: HaoRan RSKF catalogue 2024, p. 22–28.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R17 / RF17	0.12	6	19	60	47.44	2500	1.40
R17 / RF17	0.12	6	17	68	53.76	2500	1.25
R17 / RF17	0.12	6	16	73	57.35	2430	1.15
R17 / RF17	0.12	6	14	84	65.61	1860	1.00
R17 / RF17	0.12	6	13	90	70.39	1470	0.95
R17 / RF17	0.12	6	11	104	81.64	300	0.80
R17 / RF17	0.25	4	339	7.0	3.83	1190	6.4
R17 / RF17	0.25	4	288	8.3	4.51	1250	5.8
R17 / RF17	0.25	4	256	9.3	5.09	1300	5.5
R17 / RF17	0.25	4	226	11	5.76	1350	5.0
R17 / RF17	0.25	4	211	11	6.15	1370	4.8
R17 / RF17	0.25	4	185	13	7.04	1420	4.3
R17 / RF17	0.25	4	172	14	7.55	1450	4.0
R17 / RF17	0.25	4	151	16	8.63	1530	4.6
R17 / RF17	0.25	4	128	19	10.15	1600	4.1
R17 / RF17	0.25	4	114	21	11.45	1660	3.9
R17 / RF17	0.25	4	100	24	12.98	1720	3.6
R17 / RF17	0.25	4	94	25	13.84	1750	3.3
R17 / RF17	0.25	4	82	29	15.84	1810	2.9
R17 / RF17	0.25	4	77	31	16.99	1840	2.7
R17 / RF17	0.25	4	66	36	19.71	1910	2.3
R17 / RF17	0.25	4	56	43	23.15	1980	2.0
R17 / RF17	0.37	4	57	62	24.07	1830	1.40
R17 / RF17	0.37	4	49	73	28.32	1880	1.15
R17 / RF17	0.37	4	43	82	31.94	1910	1.05
R17 / RF17	0.37	4	38	93	36.20	1260	0.90
R17 / RF17	0.37	4	36	99	38.61	770	0.85

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

No confirmed catalogue rows in this ratio group for this frame.

Frame 27: torque 26–157 N·m; standard and combined selections

Frame 27 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF
Output torque	26–157 N·m
Ratio envelope	3.37–124
Motor power	0.12–2.2 kW
Output speed	11.0–418.0 r/min
Weight	4.0 kg

Source: HaoRan RSKF catalogue 2024, p. 22–38.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R27 / RF27	0.12	4	31	37	44.90	4000	3.5
R27 / RF27	0.12	4	29	40	48.17	4090	3.2
R27 / RF27	0.12	4	25	46	55.87	4280	2.8
R27 / RF27	0.12	4	23	51	61.30	4400	2.5
R27 / RF27	0.12	4	20	58	69.47	4470	2.2
R27 / RF27	0.12	4	19	62	74.11	4460	2.1
R27 / RF27	0.12	4	16	70	84.78	4440	1.85
R27 / RF27	0.12	4	15	76	90.96	4430	1.70
R27 / RF27	0.12	4	13	88	105.49	4390	1.50
R27 / RF27	0.12	4	11	103	123.91	4340	1.25
R27 / RF27	0.37	4	56	63	24.47	3110	2.1
R27 / RF27	0.37	4	48	74	28.78	3250	1.75
R27 / RF27	0.37	4	43	83	32.47	3350	1.55
R27 / RF27	0.37	4	38	94	36.79	3460	1.40
R27 / RF27	0.37	4	35	101	39.25	3510	1.30
R27 / RF27	0.37	4	31	115	44.90	3620	1.15
R27 / RF27	0.37	4	29	123	48.17	3680	1.05
R27 / RF27	0.37	4	25	143	55.87	3800	0.90
R27 / RF27	0.37	4	23	157	61.30	3870	0.85
R27 / RF27	0.75	4	276	26	5.00	1870	3.7
R27 / RF27	0.75	4	246	29	5.60	1930	3.4
R27 / RF27	0.75	4	209	34	6.59	2010	3.1
R27 / RF27	0.75	4	181	40	7.63	2090	2.8
R27 / RF27	0.75	4	169	42	8.16	2130	2.7
R27 / RF27	0.75	4	147	49	9.41	2210	2.5
R27 / RF27	0.75	4	136	53	10.13	2290	2.3
R27 / RF27	0.75	4	116	62	11.86	2380	2.1
R27 / RF27	0.75	4	104	69	13.28	2450	1.90
R27 / RF27	0.75	4	88	81	15.63	2550	1.60
R27 / RF27	0.75	4	76	94	18.08	2630	1.40
R27 / RF27	0.75	4	71	100	19.35	2670	1.30
R27 / RF27	0.75	4	62	116	22.32	2750	1.10
R27 / RF27	2.2	4	418	50	3.37	1470	1.55
R27 / RF27	2.2	4	353	60	4.00	1520	1.45
R27 / RF27	2.2	4	330	64	4.27	1540	1.35
R27 / RF27	2.2	4	282	75	5.00	1540	1.30
R27 / RF27	2.2	4	252	83	5.60	1390	1.20
R27 / RF27	2.2	4	214	98	6.59	1130	1.10
R27 / RF27	2.2	4	139	151	10.13	1120	0.80

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

No confirmed catalogue rows in this ratio group for this frame.

Frame 37: torque 35–245 N·m; standard and combined selections

Frame 37 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF
Output torque	35–245 N·m
Ratio envelope	3.41–135
Motor power	0.12–2.2 kW
Output speed	7.0–414.0 r/min
Weight	10.0–12.0 kg

Source: HaoRan RSKF catalogue 2024, p. 22–38.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R37 / RF37	0.12	4	19	61	73.96	5980	3.3
R37 / RF37	0.12	4	16	70	84.61	5950	2.8
R37 / RF37	0.12	4	15	75	90.77	5930	2.7
R37 / RF37	0.12	4	13	87	105.28	5880	2.3
R37 / RF37	0.12	4	11	103	123.66	5800	1.95
R37 / RF37	0.12	4	10	112	134.82	5750	1.80
R37 / RF37	0.18	4	27	63	48.08	5960	3.2
R37 / RF37	0.18	4	24	73	55.76	5940	2.6
R37 / RF37	0.18	4	22	80	61.18	5920	2.5
R37 / RF37	0.18	4	19	90	69.33	5870	2.2
R37 / RF37	0.18	4	18	96	73.96	5840	2.1
R37 / RF37	0.18	4	16	110	84.61	5760	1.80
R37 / RF37	0.18	6	10	167	84.61	5310	1.20
R37 / RF37	0.18	4	15	118	90.77	5710	1.70
R37 / RF37	0.18	6	9.6	179	90.77	5190	1.10
R37 / RF37	0.18	4	13	137	105.28	5580	1.45
R37 / RF37	0.18	6	8.3	210	105.28	4840	0.95
R37 / RF37	0.18	4	11	161	123.66	5370	1.25
R37 / RF37	0.18	6	7.0	245	123.66	3060	0.80
R37 / RF37	0.18	4	9.8	176	134.82	5230	1.15
R37 / RF37	0.55	4	56	94	24.42	4500	2.1
R37 / RF37	0.55	4	47	111	28.73	4700	1.80
R37 / RF37	0.55	4	42	125	32.40	4840	1.60
R37 / RF37	0.55	4	37	142	36.72	4990	1.40
R37 / RF37	0.55	4	35	151	39.17	5070	1.30
R37 / RF37	0.55	4	30	173	44.81	5230	1.15
R37 / RF37	0.55	4	28	186	48.08	5120	1.10
R37 / RF37	0.55	4	24	215	55.76	4740	0.95
RF37	1.1	4	57	183	24.42	3720	1.10
RF37	1.1	4	49	215	28.73	3300	0.95
RF37	1.1	4	43	245	32.40	2900	0.80
R37 / RF37	1.5	4	414	35	3.41	2360	3.2
R37 / RF37	1.5	4	348	41	4.05	2470	3.0
R37 / RF37	1.5	4	326	44	4.32	2520	2.9
R37 / RF37	1.5	4	279	51	5.06	2630	2.6
R37 / RF37	1.5	4	249	58	5.67	2710	2.5
R37 / RF37	1.5	4	211	68	6.67	2820	2.1
R37 / RF37	1.5	4	177	81	7.97	2980	1.95
R37 / RF37	1.5	4	149	96	9.47	3110	1.75
R37 / RF37	1.5	4	140	103	10.11	3160	1.65
R37 / RF37	1.5	4	119	120	11.83	3270	1.50
R37 / RF37	1.5	4	106	135	13.25	3350	1.40
R37 / RF37	1.5	4	90	159	15.60	3160	1.25
R37 / RF37	1.5	4	78	183	18.05	2840	1.10
R37 / RF37	2.2	4	414	51	3.41	2270	2.2
R37 / RF37	2.2	4	348	60	4.05	2370	2.0
R37 / RF37	2.2	4	326	64	4.32	2410	1.95
R37 / RF37	2.2	4	279	75	5.06	2500	1.80
R37 / RF37	2.2	4	249	84	5.67	2570	1.70
R37 / RF37	2.2	4	211	99	6.67	2470	1.45
R37 / RF37	2.2	4	177	119	7.97	2750	1.30
R37 / RF37	2.2	4	149	141	9.47	2480	1.20
R37 / RF37	2.2	2	175	120	15.60	2740	1.65
R37 / RF37	2.2	4	90	230	15.60	1070	0.85
R37 / RF37	2.2	2	151	139	18.05	2510	1.45
R37 / RF37	2.2	2	141	149	19.31	2380	1.35

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

No confirmed catalogue rows in this ratio group for this frame.

Frame 47: torque 88–360 N·m; standard and combined selections

Frame 47 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF
Output torque	88–360 N·m
Ratio envelope	16.79–163
Motor power	0.25–1.1 kW
Output speed	8.0–83.0 r/min
Weight	14.0 kg

Source: HaoRan RSKF catalogue 2024, p. 26–34.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
RF47	0.25	4	27	88	47.75	6080	3.4
RF47	0.25	4	25	97	52.69	6100	3.1
RF47	0.25	4	23	104	56.73	6090	2.9
RF47	0.25	4	20	118	64.21	6070	2.5
RF47	0.25	4	19	126	68.54	6050	2.4
RF47	0.25	4	17	140	76.23	6020	2.1
RF47	0.25	4	15	156	84.90	5980	1.90
RF47	0.25	4	14	172	93.68	5940	1.75
RF47	0.25	4	13	185	100.86	5900	1.60
RF47	0.25	4	11	210	114.17	5820	1.45
RF47	0.25	4	11	225	121.87	5770	1.35
RF47	0.25	4	9.3	255	139.99	5630	1.15
RF47	0.25	4	8.0	300	162.94	5420	1.00
R47 / RF47	0.37	4	40	89	34.73	5310	3.4
R47 / RF47	0.37	4	37	95	36.93	5410	3.2
R47 / RF47	0.37	4	32	110	42.87	5650	2.7
R47 / RF47	0.37	4	29	122	47.75	5820	2.5
R47 / RF47	0.37	4	26	135	52.69	5990	2.2
R47 / RF47	0.37	4	24	145	56.73	6010	2.1
R47 / RF47	0.37	4	21	164	64.21	5960	1.80
R47 / RF47	0.37	4	20	176	68.54	5930	1.70
R47 / RF47	0.37	4	18	195	76.23	5870	1.55
R47 / RF47	0.37	4	16	215	84.90	5790	1.40
R47 / RF47	0.37	4	15	240	93.68	5700	1.25
R47 / RF47	0.37	4	14	260	100.86	5630	1.15
R47 / RF47	0.37	4	12	290	114.17	5460	1.05
R47 / RF47	0.37	4	11	310	121.87	5350	0.95
RF47	0.55	4	62	84	21.81	4550	6
RF47	0.55	4	58	90	23.28	4630	3
RF47	1.1	4	83	126	16.79	5030	3.6
RF47	1.1	4	75	140	18.60	5170	3.2
RF47	1.1	4	64	165	21.93	5400	2.7
RF47	1.1	4	59	177	23.59	4290	1.70
RF47	1.1	4	56	188	24.99	5580	2.4
RF47	1.1	4	52	200	26.70	4410	1.50
RF47	1.1	4	47	225	29.88	4520	1.35
RF47	1.1	4	40	260	34.73	4660	1.15
RF47	1.1	4	38	275	36.93	4720	1.10
RF47	1.1	4	33	320	42.87	4850	0.95
RF47	1.1	4	29	360	47.75	3500	0.85

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

No confirmed catalogue rows in this ratio group for this frame.

Frame 57: torque 1–555 N·m; standard and combined selections

Frame 57 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF, RX, RXF
Output torque	1–555 N·m
Ratio envelope	1.3–187
Motor power	0.12–5.5 kW
Output speed	7.0–1095.0 r/min
Weight	9.0–24.0 kg

Source: HaoRan RSKF catalogue 2024, p. 22–43.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
RX57 / RXF57	0.12	4	835	1.4	1.65	2260	49
RX57 / RXF57	0.12	4	719	1.6	1.92	2380	43
RX57 / RXF57	0.12	4	676	1.7	2.04	2430	41
RX57 / RXF57	0.12	4	582	2.0	2.37	2550	35
RX57 / RXF57	0.12	4	523	2.2	2.64	2640	31
RX57 / RXF57	0.12	4	474	2.4	2.91	2730	28
RX57 / RXF57	0.12	4	440	2.6	3.14	2800	25
RX57 / RXF57	0.12	4	389	2.9	3.55	2910	24
RX57 / RXF57	0.12	4	364	3.1	3.79	2980	22
RX57 / RXF57	0.12	4	317	3.6	4.35	3120	19
RX57 / RXF57	0.12	4	272	4.2	5.07	3270	8.6
RX57 / RXF57	0.12	4	251	4.6	5.50	3360	8.5
R57	0.12	4	11	107	128.77	7980	4.2
R57	0.12	4	9.3	123	147.92	7960	3.7
R57	0.12	4	8.0	143	172.17	7940	3.2
R57	0.12	4	7.4	155	186.89	7920	2.9
R57 / RF57	0.18	4	15	117	89.71	7970	3.8
R57 / RF57	0.18	4	13	129	98.99	7950	3.5
R57 / RF57	0.18	4	12	139	106.58	7940	3.2
R57 / RF57	0.18	4	11	157	120.63	7920	2.9
R57 / RF57	0.18	4	10	168	128.77	7900	2.7
R57 / RF57	0.18	4	8.9	193	147.92	7870	2.3
R57 / RF57	0.18	4	7.7	225	172.17	7810	2.0
R57 / RF57	0.18	4	7.1	245	186.89	7770	1.85
R57 / RF57	0.25	4	19	127	69.23	7960	3.5
R57 / RF57	0.25	4	16	148	80.55	7930	3.0
R57 / RF57	0.25	4	14	165	89.71	7910	2.7
R57 / RF57	0.25	4	13	182	98.99	7880	2.5
R57 / RF57	0.25	4	12	196	106.58	7860	2.3
R57 / RF57	0.25	4	11	220	120.63	7810	2.0
R57 / RF57	0.25	4	10	235	128.77	7780	1.90
R57 / RF57	0.25	4	8.8	270	147.92	7700	1.65
R57 / RF57	0.25	4	7.6	315	172.17	7590	1.40
R57 / RF57	0.25	4	7.0	345	186.89	7500	1.30
RX57 / RXF57	0.37	4	835	4.2	1.65	2240	16
RX57 / RXF57	0.37	4	719	4.9	1.92	2350	14
RX57 / RXF57	0.37	4	676	5.2	2.04	2400	13
RX57 / RXF57	0.37	4	582	6.1	2.37	2520	11
RX57 / RXF57	0.37	4	523	6.8	2.64	2610	10
RX57 / RXF57	0.37	4	474	7.5	2.91	2690	8.9
RX57 / RXF57	0.37	4	440	8.0	3.14	2760	8.1
RX57 / RXF57	0.37	4	389	9.1	3.55	2870	7.6
RX57 / RXF57	0.37	6	254	14	3.55	3280	5.0
RX57 / RXF57	0.37	4	364	9.7	3.79	2930	7.1
RX57 / RXF57	0.37	6	238	15	3.79	3350	4.6
RX57 / RXF57	0.37	4	317	11	4.35	3060	6.1
RX57 / RXF57	0.37	6	207	17	4.35	3500	4.0
RX57 / RXF57	0.37	4	272	13	5.07	3210	2.8
RX57 / RXF57	0.37	4	251	14	5.50	3300	2.8
R57 / RF57	0.37	4	29	124	48.23	7380	3.6
R57 / RF57	0.37	4	20	177	69.23	7890	2.5
R57 / RF57	0.37	4	17	205	80.55	7840	2.2
R57 / RF57	0.37	4	15	230	89.71	7800	1.95
R57 / RF57	0.37	4	14	255	98.99	7750	1.80
RF57	0.37	6	9.1	390	98.99	7350	1.15
R57 / RF57	0.37	4	13	275	106.58	7700	1.65
RF57	0.37	6	8.4	420	106.58	7240	1.10
R57 / RF57	0.37	4	11	310	120.63	7610	1.45
RF57	0.37	6	7.5	475	120.63	7000	0.95
R57 / RF57	0.37	4	11	330	128.77	7550	1.35
RF57	0.37	6	7.0	505	128.77	6510	0.90
R57 / RF57	0.37	4	9.3	380	147.92	7390	1.20
R57 / RF57	0.37	4	8.0	440	172.17	7140	1.00
R57 / RF57	0.37	4	7.4	480	186.89	6980	0.95
RX57 / RXF57	0.75	4	935	7.7	1.48	2130	8.8
RX57 / RXF57	0.75	4	835	8.6	1.65	2210	8.0
RX57 / RXF57	0.75	4	719	10	1.92	2310	6.9
RX57 / RXF57	0.75	4	676	11	2.04	2360	6.5
RX57 / RXF57	0.75	4	582	12	2.37	2470	5.6
RX57 / RXF57	0.75	4	523	14	2.64	2560	5.0
RX57 / RXF57	0.75	4	474	15	2.91	2630	4.4
RX57 / RXF57	0.75	4	440	16	3.14	2700	4.0
RX57 / RXF57	0.75	4	389	18	3.55	2800	3.8
RX57 / RXF57	2.2	4	1080	19	1.30	1930	3.2
RX57 / RXF57	2.2	4	955	22	1.48	1990	3.1
RX57 / RXF57	2.2	4	853	25	1.65	2060	2.8
RX57 / RXF57	2.2	4	734	29	1.92	2150	2.4
RX57 / RXF57	2.2	4	691	30	2.04	2190	2.3
RX57 / RXF57	2.2	4	595	35	2.37	2280	1.95
RX57 / RXF57	2.2	4	534	39	2.64	2340	1.75
R57 / RF57	2.2	4	52	400	26.97	4960	1.10
R57 / RF57	2.2	4	47	450	30.18	5030	1.00
R57 / RF57	2.2	4	40	525	35.07	5110	0.85
R57 / RF57	2.2	4	38	555	37.30	4490	0.80
R57 / RF57	3.0	4	52	550	26.97	4330	0.80
R57 / RF57	5.5	4	1095	48	1.30	1160	1.30
R57 / RF57	5.5	4	969	54	1.48	1020	1.25
R57 / RF57	5.5	4	866	61	1.65	940	1.15
R57 / RF57	5.5	4	745	71	1.92	755	1.00
R57 / RF57	5.5	4	700	75	2.04	665	0.90

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

No confirmed catalogue rows in this ratio group for this frame.

Frame 67: torque 4–595 N·m; standard and combined selections

Frame 67 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF, RX, RXF
Output torque	4–595 N·m
Ratio envelope	1.3–200
Motor power	0.12–7.5 kW
Output speed	4.3–1080.0 r/min
Weight	12.0–29.0 kg

Source: HaoRan RSKF catalogue 2024, p. 22–44.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
RX67 / RXF67	0.12	4	321	3.6	4.30	3810	22
RX67 / RXF67	0.12	4	305	3.8	4.53	3870	22
RX67 / RXF67	0.12	4	267	4.3	5.18	4050	17
RX67 / RXF67	0.12	4	227	5.0	6.07	4270	8.6
RF67	0.12	6	5.7	200	158.14	10300	3.0
R67 / RF67	0.12	4	7.5	153	184.07	10400	3.9
RF67	0.12	6	4.9	235	184.07	10100	2.6
R67 / RF67	0.12	4	6.9	166	199.81	10300	3.6
RF67	0.12	6	4.5	255	199.81	10100	2.4
R67 / RF67	0.18	6	12	138	69.75	10400	4.3
R67 / RF67	0.18	6	12	147	74.17	10400	4.1
R67 / RF67	0.18	6	10	170	86.11	10300	3.5
R67 / RF67	0.18	6	9.1	190	95.91	10300	3.2
R67 / RF67	0.18	6	8.2	210	105.83	10200	2.9
R67 / RF67	0.18	6	7.6	225	113.94	10200	2.7
R67 / RF67	0.18	6	6.8	255	128.97	10100	2.3
R67 / RF67	0.18	6	6.3	270	137.67	10000	2.2
R67 / RF67	0.18	6	5.5	310	158.14	9830	1.90
R67 / RF67	0.18	6	4.7	365	184.07	9560	1.65
R67 / RF67	0.18	6	4.3	395	199.81	9370	1.50
RX67 / RXF67	0.25	4	636	3.8	2.04	3020	35
RX67 / RXF67	0.25	4	542	4.4	2.40	3190	28
RX67 / RXF67	0.25	4	450	5.3	2.89	3390	20
RX67 / RXF67	0.25	4	345	6.9	3.77	3700	3
RX67 / RXF67	0.25	4	302	7.9	4.30	3860	10
RX67 / RXF67	0.25	4	214	11	6.07	4310	3.9
R67 / RF67	0.25	6	8.3	285	105.83	9940	2.1
R67 / RF67	0.25	6	7.7	310	113.94	9840	1.95
R67 / RF67	0.25	8	6.0	400	113.94	9340	1.50
R67 / RF67	0.25	6	6.8	350	128.97	9630	1.70
R67 / RF67	0.25	8	5.3	455	128.97	8970	1.35
R67 / RF67	0.25	6	6.4	375	137.67	9500	1.60
R67 / RF67	0.25	8	4.9	485	137.67	8730	1.25
R67 / RF67	0.25	6	5.6	430	158.14	9140	1.40
R67 / RF67	0.25	8	4.3	555	158.14	8060	1.10
R67 / RF67	0.25	6	4.8	500	184.07	8590	1.20
R67 / RF67	0.25	6	4.4	540	199.81	8190	1.10
RX67 / RXF67	0.37	4	675	5.2	2.04	2950	26
RX67 / RXF67	0.37	4	575	6.1	2.40	3110	20
RX67 / RXF67	0.37	4	543	6.5	2.54	3170	18
RX67 / RXF67	0.37	4	478	7.4	2.89	3310	14
RX67 / RXF67	0.37	4	431	8.2	3.20	3420	12
RX67 / RXF67	0.37	4	366	9.7	3.77	3610	9.0
RX67 / RXF67	0.37	4	321	11	4.30	3760	7.3
RX67 / RXF67	0.37	4	305	12	4.53	3820	7.1
RX67 / RXF67	0.37	4	267	13	5.18	3990	5.6
RX67 / RXF67	0.37	4	227	16	6.07	4200	2.8
RX67 / RXF67	0.55	4	845	6.2	1.61	2730	18
RX67 / RXF67	0.55	4	732	7.2	1.86	2860	18
RX67 / RXF67	0.55	4	666	7.9	2.04	2950	17
RX67 / RXF67	0.55	4	567	9.3	2.40	3110	13
RX67 / RXF67	0.55	4	535	9.8	2.54	3170	12
RX67 / RXF67	0.55	4	471	11	2.89	3300	9.5
RX67 / RXF67	0.55	4	425	12	3.20	3410	8.1
RX67 / RXF67	0.55	4	360	15	3.77	3590	6.0
RX67 / RXF67	0.55	4	316	17	4.30	3740	4.8
RX67 / RXF67	0.55	4	300	18	4.53	3800	4.7
RX67 / RXF67	0.75	4	858	8.3	1.61	2700	14
RX67 / RXF67	0.75	4	743	9.6	1.86	2830	13
RX67 / RXF67	0.75	4	675	11	2.04	2920	13
RX67 / RXF67	0.75	4	575	13	2.40	3070	9.8
RX67 / RXF67	0.75	4	543	13	2.54	3130	8.9
RX67 / RXF67	0.75	4	478	15	2.89	3260	7.1
RX67 / RXF67	0.75	4	431	17	3.20	3360	6.0
RX67 / RXF67	0.75	6	281	26	3.20	3840	3.9
RX67 / RXF67	0.75	4	366	20	3.77	3540	4.4
RX67 / RXF67	0.75	6	239	30	3.77	4040	2.9
RX67 / RXF67	0.75	4	321	22	4.30	3690	3.6
RX67 / RXF67	0.75	6	209	34	4.30	4200	2.3
RX67 / RXF67	0.75	4	305	24	4.53	3750	3.5
RX67 / RXF67	0.75	6	199	36	4.53	4260	2.3
RX67 / RXF67	0.75	4	267	27	5.18	3900	2.8
RX67 / RXF67	1.1	6	244	43	3.77	3920	2.0
RX67 / RXF67	1.1	6	214	49	4.30	4070	1.65
RX67 / RXF67	1.1	6	203	52	4.53	4130	1.60
RX67 / RXF67	1.5	4	1080	13	1.30	1980	4.7
RX67 / RXF67	1.5	4	1005	14	1.40	2510	7.3
RX67 / RXF67	1.5	4	955	15	1.48	2050	4.5
RX67 / RXF67	1.5	4	876	16	1.61	2620	7.0
RX67 / RXF67	1.5	4	853	17	1.65	2120	4.1
RX67 / RXF67	1.5	4	759	19	1.86	2740	6.7
RX67 / RXF67	1.5	4	734	20	1.92	2220	3.5
RX67 / RXF67	1.5	4	690	21	2.04	2820	6.4
RX67 / RXF67	1.5	4	691	21	2.04	2260	3.3
RX67 / RXF67	1.5	4	595	24	2.37	2360	2.9
RX67 / RXF67	1.5	4	588	24	2.40	2970	5.0
RX67 / RXF67	1.5	4	555	26	2.54	3020	4.6
RX67 / RXF67	1.5	4	534	27	2.64	2440	2.6
RX67 / RXF67	1.5	4	488	29	2.89	3140	3.6
RX67 / RXF67	1.5	4	484	30	2.91	2510	2.3
RX67 / RXF67	1.5	4	450	32	3.14	2560	2.0
RX67 / RXF67	1.5	4	441	33	3.20	3230	3.1
RX67 / RXF67	1.5	4	397	36	3.55	2650	1.90
RX67 / RXF67	1.5	4	374	38	3.77	3390	2.3
RX67 / RXF67	1.5	4	328	44	4.30	3520	1.85
RX67 / RXF67	1.5	4	312	46	4.53	3570	1.80
RX67 / RXF67	2.2	4	1005	21	1.40	2460	5.0
RX67 / RXF67	2.2	4	876	24	1.61	2570	4.8
RX67 / RXF67	2.2	4	759	28	1.86	2680	4.6
RX67 / RXF67	2.2	4	690	30	2.04	2760	4.4
RX67 / RXF67	2.2	4	588	36	2.40	2890	3.4
RX67 / RXF67	2.2	4	555	38	2.54	2940	3.1
RX67 / RXF67	2.2	4	488	43	2.89	3050	2.5
RX67 / RXF67	2.2	4	441	48	3.20	3130	2.1
RX67 / RXF67	2.2	4	374	56	3.99	3280	1.55
R67 / RF67	2.2	4	95	220	14.91	8110	2.5
R67 / RF67	2.2	4	89	235	15.79	8240	2.4
R67 / RF67	2.2	4	79	270	17.95	8530	2.2
R67 / RF67	2.2	4	71	295	19.89	8760	2.0
R67 / RF67	2.2	4	49	430	28.83	9140	1.20
R67 / RF67	2.2	4	44	480	32.27	8750	1.10
R67 / RF67	2.2	4	38	560	37.50	8020	1.00
R67 / RF67	2.2	4	35	595	39.88	7630	1.00
RF67	3.0	4	94	305	14.91	7860	1.80
RF67	3.0	4	89	325	15.79	7980	1.75
RF67	3.0	4	78	365	17.95	8230	1.60
RX67 / RXF67	7.5	4	1020	70	1.40	2080	1.50
RX67 / RXF67	7.5	4	889	81	1.61	2060	1.40
RX67 / RXF67	7.5	4	770	93	1.86	1930	1.35
RX67 / RXF67	7.5	4	700	102	2.04	1810	1.30
RX67 / RXF67	7.5	4	596	120	2.40	1610	1.00
RX67 / RXF67	7.5	4	563	127	2.54	1500	0.95

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

No confirmed catalogue rows in this ratio group for this frame.

Frame 77: torque 21–755 N·m; standard and combined selections

Frame 77 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF, RX, RXF
Output torque	21–755 N·m
Ratio envelope	1.42–195
Motor power	0.18–2.2 kW
Output speed	4.1–991.0 r/min
Weight	20.0–36.0 kg

Source: HaoRan RSKF catalogue 2024, p. 23–38.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
RF77	0.18	6	7.2	240	121.42	12900	3.4
R77	0.18	4	9.5	180	138.39	13000	4.6
RF77	0.18	6	6.3	275	138.39	12900	3.0
R77	0.18	4	9.1	190	145.67	13000	4.3
RF77	0.18	6	6.0	290	145.67	12800	2.8
R77	0.18	4	7.9	215	166.59	13000	3.8
R77 / RF77	0.18	6	5.2	330	166.59	12700	2.5
R77	0.18	4	6.8	255	195.24	12900	3.2
R77 / RF77	0.18	6	4.5	385	195.24	12500	2.1
R77 / RF77	0.25	4	11	225	121.42	13000	3.7
R77 / RF77	0.25	8	5.6	425	121.42	12400	1.90
R77 / RF77	0.25	4	9.4	255	138.39	12900	3.2
R77 / RF77	0.25	8	4.9	485	138.39	12100	1.70
R77 / RF77	0.25	4	8.9	270	145.67	12900	3.1
R77 / RF77	0.25	8	4.7	510	145.67	12000	1.60
R77 / RF77	0.25	4	7.8	305	166.59	12800	2.7
R77 / RF77	0.25	8	4.1	585	166.59	11600	1.40
R77 / RF77	0.25	4	6.7	360	195.24	12600	2.3
R77 / RF77	0.37	8	5.6	630	121.42	11400	1.30
R77 / RF77	0.37	8	4.9	720	138.39	10800	1.15
RF77	0.37	6	6.5	545	138.39	11900	1.50
R77 / RF77	0.37	8	4.7	755	145.67	10500	1.10
RF77	0.37	6	6.2	570	145.67	11700	1.45
RF77	0.37	6	5.4	655	166.59	11200	1.25
RX77 / RXF77	1.1	4	296	36	4.73	5380	3.5
RX77 / RXF77	1.1	4	262	40	5.35	5590	2.6
RX77 / RXF77	1.1	4	249	42	5.63	5680	2.6
RX77 / RXF77	1.5	4	581	25	2.43	4310	8.7
RX77 / RXF77	1.5	4	523	27	2.70	4460	7.8
RX77 / RXF77	1.5	4	458	31	3.08	4650	6.2
RX77 / RXF77	1.5	4	434	33	3.25	4720	5.5
RX77 / RXF77	1.5	4	381	38	3.70	4920	4.1
RX77 / RXF77	1.5	4	349	41	4.04	5050	3.5
RX77 / RXF77	1.5	4	298	48	4.73	5300	2.6
RX77 / RXF77	1.5	4	264	54	5.35	5490	1.90
RX77 / RXF77	1.5	4	250	57	5.63	5580	1.90
RX77 / RXF77	2.2	4	991	21	1.42	3590	7.3
RX77 / RXF77	2.2	4	846	25	1.67	3780	7.0
RX77 / RXF77	2.2	4	750	28	1.88	3920	6.7
RX77 / RXF77	2.2	4	662	32	2.13	4080	6.3
RX77 / RXF77	2.2	4	581	36	2.43	4250	5.9
RX77 / RXF77	2.2	4	523	40	2.70	4380	5.3
RX77 / RXF77	2.2	4	458	46	3.08	4560	4.2
RX77 / RXF77	2.2	4	434	48	3.25	4640	3.8
RX77 / RXF77	2.2	4	381	55	3.70	4820	2.8
RX77 / RXF77	2.2	4	349	60	4.04	4950	2.4
RX77 / RXF77	2.2	4	298	70	4.73	5180	1.75

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

No confirmed catalogue rows in this ratio group for this frame.

Frame 87: torque 70–1850 N·m; standard and combined selections

Frame 87 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF, RX, RXF
Output torque	70–1850 N·m
Ratio envelope	1.39–1737
Motor power	0.18–22.0 kW
Output speed	0.76–1055.0 r/min
Weight	35.0–63.0 kg

Source: HaoRan RSKF catalogue 2024, p. 23–49.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
RF87	0.25	8	3.7	640	181.77	20000	2.4
RF87	0.25	8	3.3	720	205.71	20000	2.2
RF87	0.25	8	3.1	760	216.54	20000	2.0
RF87	0.25	8	2.8	870	246.54	20000	1.80
R87 / RF87	0.37	6	6.3	560	142.41	20000	2.8
R87 / RF87	0.37	6	5.8	610	155.34	20000	2.5
R87 / RF87	0.37	6	4.9	715	181.77	20000	2.2
R87 / RF87	0.37	8	3.7	940	181.77	20000	1.65
R87 / RF87	0.37	6	4.4	810	205.71	20000	1.90
R87 / RF87	0.37	8	3.3	1070	205.71	19600	1.45
R87 / RF87	0.37	6	4.2	850	216.54	20000	1.80
R87 / RF87	0.37	8	3.1	1130	216.54	19300	1.40
R87 / RF87	0.37	6	3.7	970	246.54	20000	1.60
R87 / RF87	0.55	4	13	400	103.65	20000	3.9
R87 / RF87	0.55	4	11	455	118.43	20000	3.4
R87 / RF87	0.55	4	11	485	124.97	20000	3.2
R87 / RF87	0.55	4	9.6	550	142.41	20000	2.8
R87 / RF87	0.55	4	8.8	600	155.34	20000	2.6
R87 / RF87	0.55	6	5.8	910	155.34	20000	1.70
R87 / RF87	0.55	4	7.5	700	181.77	20000	2.2
R87 / RF87	0.55	6	4.9	1060	181.77	19600	1.45
R87 / RF87	0.55	4	6.6	795	205.71	20000	1.95
R87 / RF87	0.55	6	4.4	1200	205.71	19000	1.30
R87 / RF87	0.55	4	6.3	840	216.54	20000	1.85
R87 / RF87	0.55	6	4.2	1260	216.54	18700	1.25
R87 / RF87	0.55	4	5.5	950	246.54	20000	1.65
R87 / RF87	1.5	4	38	375	36.84	19600	4.1
R87 / RF87	1.5	4	34	425	41.74	20000	3.7
R87 / RF87	1.5	4	30	485	47.58	20000	3.2
R87 / RF87	1.5	4	27	535	52.82	20000	2.9
R87 / RF87	1.5	4	23	615	60.35	20000	2.5
R87 / RF87	1.5	4	22	645	63.68	20000	2.4
R87 / RF87	1.5	4	19	735	72.57	20000	2.1
R87 / RF87	1.5	4	17	830	81.92	20000	1.85
R87 / RF87	1.5	4	15	950	93.38	20000	1.65
R87 / RF87	2.2	4	43	485	32.66	18500	3.2
R87 / RF87	2.2	4	38	550	36.84	19200	2.8
R87 / RF87	2.2	4	34	620	41.74	19900	2.5
R87 / RF87	2.2	4	30	710	47.58	20000	2.2
R87 / RF87	2.2	4	27	785	52.82	20000	1.95
R87 / RF87	2.2	4	23	900	60.35	20000	1.70
R87 / RF87	2.2	4	22	950	63.68	20000	1.65
R87 / RF87	2.2	4	19	1080	72.57	19500	1.45
R87 / RF87	5.5	4	200	260	7.13	11300	4.1
R87 / RF87	5.5	4	174	300	8.22	11800	3.8
R87 / RF87	5.5	4	156	335	9.14	12200	3.6
R87 / RF87	5.5	4	144	365	9.90	12300	3.2
R87 / RF87	5.5	4	120	440	11.93	13000	2.8
R87 / RF87	5.5	4	107	490	13.33	13400	2.6
R87 / RF87	5.5	4	93	565	15.35	13900	2.4
R87 / RF87	5.5	4	84	625	17.08	14300	2.2
R87 / RF87	5.5	4	75	700	19.10	14700	2.0
R87 / RF87	5.5	4	66	790	21.51	15200	1.90
R87 / RF87	5.5	4	61	860	23.40	15500	1.80
R87 / RF87	5.5	4	51	1020	27.84	16100	1.50
RX87 / RXF87	7.5	4	1030	70	1.39	4230	4.2
RX87 / RXF87	7.5	4	894	80	1.60	4400	3.9
RX87 / RXF87	7.5	4	741	97	1.93	4640	3.7
RX87 / RXF87	7.5	4	664	108	2.15	4780	3.6
RX87 / RXF87	7.5	4	576	124	2.48	4970	3.3
RX87 / RXF87	7.5	4	518	138	2.76	5110	2.9
RX87 / RXF87	7.5	4	463	155	3.09	5260	2.6
RX87 / RXF87	7.5	4	411	174	3.48	5420	2.3
RX87 / RXF87	7.5	4	378	189	3.78	5530	1.60
RX87 / RXF87	7.5	4	318	225	4.50	5760	1.30
R87 / RF87	7.5	4	270	265	5.30	10200	3.4
R87 / RF87	7.5	4	224	320	6.39	10800	3.2
R87 / RF87	7.5	4	200	355	7.13	11100	3.0
R87 / RF87	7.5	4	174	410	8.22	11600	2.8
R87 / RF87	7.5	4	156	460	9.14	11900	2.6
R87 / RF87	7.5	4	144	495	9.90	12000	2.4
R87 / RF87	7.5	4	120	600	11.93	12600	2.1
R87 / RF87	7.5	4	107	670	13.33	12900	1.90
R87 / RF87	7.5	4	93	770	15.35	12500	1.75
R87 / RF87	7.5	4	84	860	17.08	13700	1.65
R87 / RF87	7.5	4	75	960	19.10	14100	1.50
R87 / RF87	7.5	4	66	1080	21.51	14500	1.40
R87 / RF87	7.5	4	61	1170	23.40	14700	1.30
R87 / RF87	7.5	4	51	1390	27.84	15200	1.10
RF87	7.5	4	51	1400	27.88	15200	1.05
RF87	7.5	4	44	1640	32.66	15700	0.95
RF87	7.5	4	39	1840	36.84	11500	0.85
RX87 / RXF87	22	4	1055	200	1.39	3030	1.45
RX87 / RXF87	22	4	916	230	1.60	2750	1.35
RX87 / RXF87	22	4	760	275	1.93	2450	1.30
RX87 / RXF87	22	4	680	310	2.15	2160	1.25
RX87 / RXF87	22	4	590	355	2.48	1710	1.15
RX87 / RXF87	22	4	531	395	2.76	1270	1.00

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
RF87	0.18	4	1.7	830	776	20000	1.90
RF87	0.18	4	1.5	940	885	20000	1.65
RF87	0.18	4	1.2	1180	1143	19100	1.30
RF87	0.18	4	1.1	1350	1232	18200	1.15
RF87	0.18	4	1.0	1350	1303	18200	1.15
RF87	0.18	4	0.95	1540	1395	17000	1.00
RF87	0.18	4	0.89	1650	1489	16200	0.95
RF87	0.18	4	0.87	1620	1524	16400	0.95
RF87	0.18	4	0.76	1850	1733	10800	0.85
RF87	0.18	4	0.76	1850	1737	11200	0.85

Frame 97: torque 146–3220 N·m; standard and combined selections

Frame 97 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF, RX, RXF
Output torque	146–3220 N·m
Ratio envelope	1.42–290
Motor power	0.25–30.0 kW
Output speed	2.3–1040.0 r/min
Weight	59.0–118.0 kg

Source: HaoRan RSKF catalogue 2024, p. 26–49.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R97 / RF97	0.25	8	3.1	760	216.28	28400	4.0
R97 / RF97	0.25	8	2.8	850	241.25	28400	3.5
R97 / RF97	0.25	8	2.7	900	255.71	28300	3.3
R97 / RF97	0.25	8	2.3	1020	289.74	28200	3.0
R97 / RF97	0.37	8	3.7	970	186.30	28300	3.1
R97 / RF97	0.37	6	4.2	850	216.28	28400	3.5
R97 / RF97	0.37	6	3.5	1000	255.71	28200	3.0
R97 / RF97	0.55	8	3.1	1670	216.28	27400	1.80
RF97	0.55	6	4.2	1260	216.28	28000	2.4
R97 / RF97	0.55	8	2.8	1860	241.25	26900	1.60
RF97	0.55	6	3.7	1410	241.25	27800	2.1
R97 / RF97	0.55	8	2.7	1980	255.71	26500	1.50
RF97	0.55	6	3.5	1490	255.71	27700	2.0
RF97	0.55	6	3.0	1690	289.74	27400	1.75
R97 / RF97	1.5	4	15	940	92.48	28300	3.2
R97 / RF97	1.5	4	14	1050	103.44	28200	2.8
R97 / RF97	1.5	4	12	1180	116.48	28000	2.5
R97 / RF97	1.5	4	11	1290	126.75	27900	2.3
R97 / RF97	1.5	4	9.4	1530	150.78	27600	1.95
R97 / RF97	1.5	4	8.3	1730	170.02	27300	1.75
R97 / RF97	1.5	4	7.6	1890	186.30	26800	1.60
R97 / RF97	1.5	4	6.5	2200	216.28	25600	1.35
R97 / RF97	1.5	4	5.8	2450	241.25	24300	1.20
R97 / RF97	1.5	4	5.5	2600	255.71	23500	1.15
R97 / RF97	2.2	4	8.3	2530	170.02	23900	1.20
R97 / RF97	2.2	4	7.6	2780	186.30	22500	1.10
R97 / RF97	2.2	4	6.5	3220	216.28	7030	0.95
R97 / RF97	4.0	4	71	540	20.14	18900	4.8
R97 / RF97	4.0	4	63	600	22.37	19500	4.5
R97 / RF97	4.0	4	57	675	25.03	20100	4.2
R97 / RF97	4.0	4	52	730	27.19	20600	3.5
R97 / RF97	4.0	4	44	860	32.05	21600	3.0
R97 / RF97	4.0	4	43	890	33.25	21800	3.2
R97 / RF97	4.0	4	38	1000	37.13	22500	3.0
R97 / RF97	4.0	4	33	1150	42.78	23400	2.6
R97 / RF97	4.0	4	30	1280	47.58	24000	2.3
R97 / RF97	4.0	4	27	1430	53.21	24700	2.1
R97 / RF97	4.0	4	24	1610	59.92	25500	1.85
R97 / RF97	4.0	4	22	1750	65.21	26000	1.70
R97 / RF97	4.0	4	20	1940	72.17	26600	1.55
R97 / RF97	4.0	4	17	2240	83.15	25400	1.35
R97 / RF97	4.0	4	15	2490	92.48	24100	1.20
R97 / RF97	4.0	4	14	2780	103.44	22400	1.10
R97 / RF97	4.0	4	12	3130	116.48	13800	0.95
RX97 / RXF97	7.5	4	489	146	2.92	6730	4.1
RX97 / RXF97	7.5	4	434	165	3.30	6960	3.6
RX97 / RXF97	7.5	4	393	182	3.64	7160	3.3
RX97 / RXF97	7.5	4	354	205	4.04	7360	2.9
RX97 / RXF97	7.5	4	316	225	4.52	7580	2.6
RX97 / RXF97	7.5	4	291	245	4.91	7750	1.60
RF97	7.5	4	78	910	18.24	17500	2.7
RF97	7.5	4	71	1010	20.14	17900	2.6
RF97	7.5	4	64	1120	22.37	18400	2.4
RF97	7.5	4	57	1250	25.03	18900	2.3
RF97	7.5	4	53	1360	27.19	19300	1.90
R97 / RF97	7.5	4	52	1380	27.58	19400	1.95
R97 / RF97	7.5	4	43	1670	33.25	20200	1.75
RF97	7.5	4	39	1860	37.13	20700	1.60
RF97	7.5	4	33	2140	42.78	21300	1.40
RF97	7.5	4	30	2380	47.58	21800	1.25
RF97	7.5	4	27	2670	53.21	22200	1.15
RF97	7.5	4	24	3000	59.92	19700	1.00
R97 / RF97	15.0	4	235	610	6.21	12400	3.1
R97 / RF97	15.0	4	205	700	7.12	12800	2.9
R97 / RF97	15.0	4	174	820	8.39	13400	2.5
R97 / RF97	15.0	4	157	910	9.29	13800	2.2
R97 / RF97	15.0	4	135	1060	10.83	14000	1.95
R97 / RF97	15.0	4	118	1220	12.39	14400	1.80
R97 / RF97	15.0	4	100	1430	14.62	14900	1.60
R97 / RF97	15.0	4	90	1590	16.17	15200	1.50
R97 / RF97	15.0	4	80	1790	18.24	15600	1.40
R97 / RF97	15.0	4	72	1980	20.14	15800	1.30
R97 / RF97	15.0	4	65	2200	22.37	16100	1.25
R97 / RF97	15.0	4	58	2460	25.03	16300	1.15
R97 / RF97	15.0	4	53	2710	27.58	16500	1.00
RX97 / RXF97	18.5	4	1035	171	1.42	4940	2.7
RX97 / RXF97	18.5	4	895	197	1.64	5120	2.6
RX97 / RXF97	18.5	4	749	235	1.96	5350	2.4
RX97 / RXF97	18.5	4	654	270	2.24	5510	2.2
RX97 / RXF97	18.5	4	554	320	2.64	5710	1.85
RX97 / RXF97	18.5	4	501	355	2.92	5830	1.70
RX97 / RXF97	18.5	4	402	440	3.64	6060	1.35
R97 / RF97	22	4	100	2100	14.62	13600	1.10
R97 / RF97	22	4	91	2320	16.17	13700	1.05
R97 / RF97	22	4	80	2620	18.24	13900	0.95
R97 / RF97	22	4	73	2890	20.14	14000	0.90
RX97 / RXF97	30	4	1040	275	1.42	4450	1.65
RX97 / RXF97	30	4	898	320	1.64	4580	1.60
RX97 / RXF97	30	4	751	380	1.96	4450	1.50
RX97 / RXF97	30	4	656	435	2.24	4050	1.35
RX97 / RXF97	30	4	556	515	2.64	3560	1.15
RX97 / RXF97	30	4	503	570	2.92	3120	1.05
R97 / RF97	30	4	327	880	4.50	10500	1.85
R97 / RF97	30	4	283	1010	5.20	10900	1.75
R97 / RF97	30	4	237	1210	6.21	11400	1.55
R97 / RF97	30	4	207	1390	7.12	11700	1.45
R97 / RF97	30	4	175	1640	8.39	12100	1.25
R97 / RF97	30	4	158	1810	9.29	12300	1.10
R97 / RF97	30	4	136	2110	10.83	11800	1.00
R97 / RF97	30	4	119	2420	12.39	11900	0.90
R97 / RF97	30	4	101	2850	14.62	12000	0.80

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

No confirmed catalogue rows in this ratio group for this frame.

Frame 107: torque 205–5060 N·m; standard and combined selections

Frame 107 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF, RX, RXF
Output torque	205–5060 N·m
Ratio envelope	1.44–251
Motor power	1.5–45.0 kW
Output speed	3.0–1020.0 r/min
Weight	88.0–130.0 kg

Source: HaoRan RSKF catalogue 2024, p. 35–50.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R107 / RF107	1.5	6	6.5	2210	141.83	36500	1.95
R107 / RF107	1.5	6	5.8	2470	158.68	36200	1.75
R107 / RF107	1.5	8	4.4	3250	158.68	34100	1.30
R107 / RF107	1.5	6	5.3	2680	172.34	35900	1.60
R107 / RF107	1.5	8	4.1	3530	172.34	33100	1.20
R107 / RF107	1.5	6	4.5	3610	203.16	34400	1.35
R107 / RF107	1.5	8	3.5	4160	203.16	30200	1.05
R107 / RF107	1.5	6	4.0	3580	229.95	32900	1.20
R107 / RF107	1.5	8	3.0	4710	229.95	26500	0.90
R107 / RF107	1.5	6	3.7	3910	251.15	31400	1.10
R107 / RF107	2.2	4	15	1380	92.70	37300	3.1
R107 / RF107	2.2	4	14	1530	102.53	37200	2.8
R107 / RF107	2.2	4	12	1720	115.63	37000	2.5
R107 / RF107	2.2	4	11	1900	127.68	36900	2.3
R107 / RF107	2.2	4	9.9	2110	141.83	36600	2.0
R107 / RF107	2.2	6	6.6	3170	141.83	34400	1.35
R107 / RF107	2.2	4	8.9	2360	158.68	36300	1.80
R107 / RF107	2.2	6	5.9	3550	158.68	33000	1.20
R107 / RF107	2.2	4	8.2	2570	172.34	36100	1.65
R107 / RF107	2.2	6	5.4	3850	172.34	31700	1.10
R107 / RF107	2.2	4	6.9	3030	203.16	34900	1.40
R107 / RF107	2.2	6	4.6	4540	203.16	28100	0.95
R107 / RF107	2.2	4	6.1	3430	229.95	33500	1.25
R107 / RF107	3.0	6	7.4	3890	127.68	31500	1.10
R107 / RF107	3.0	6	6.6	4320	141.83	29300	1.00
R107 / RF107	3.0	6	5.9	4840	158.68	21600	0.90
RX107 / RXF107	7.5	4	340	210	4.20	8950	3.9
RX107 / RXF107	7.5	4	307	235	4.65	9210	3.0
RX107 / RXF107	7.5	4	276	260	5.19	9490	2.7
RX107 / RXF107	7.5	4	255	280	5.61	9690	1.60
RX107 / RXF107	7.5	4	216	330	6.63	10100	1.40
R107 / RF107	7.5	4	48	1480	29.49	25200	2.9
R107 / RF107	7.5	4	41	1770	35.26	26400	2.4
R107 / RF107	7.5	4	35	2020	40.37	27300	2.1
R107 / RF107	7.5	4	30	2390	47.63	28500	1.80
R107 / RF107	7.5	4	27	2640	52.68	29200	1.65
R107 / RF107	7.5	4	24	2980	59.41	30000	1.45
R107 / RF107	7.5	4	22	3290	65.60	30600	1.30
R107 / RF107	7.5	4	20	3650	72.88	31300	1.20
R107 / RF107	7.5	4	18	3940	78.57	31300	1.10
R107 / RF107	7.5	4	15	4640	92.70	27500	0.95
R107 / RF107	15.0	4	50	2890	29.49	22600	1.50
R107 / RF107	15.0	4	41	3460	35.26	23400	1.25
R107 / RF107	15.0	4	36	3960	40.37	23900	1.10
R107 / RF107	15.0	4	31	4670	47.63	24500	0.90
R107 / RF107	18.5	4	50	3560	29.49	21500	1.20
R107 / RF107	18.5	4	42	4250	35.26	22000	1.00
R107 / RF107	18.5	4	36	4870	40.37	20200	0.90
RX107 / RXF107	22	4	1015	205	1.44	5870	3.1
RX107 / RXF107	22	4	858	245	1.71	6120	2.9
RX107 / RXF107	22	4	750	280	1.95	6320	2.7
RX107 / RXF107	22	4	636	330	2.30	6560	2.5
RX107 / RXF107	22	4	555	380	2.64	6760	2.2
RX107 / RXF107	22	4	477	440	3.07	6960	1.90
RX107 / RXF107	22	4	433	485	3.38	7090	1.70
RX107 / RXF107	22	4	384	545	3.81	7230	1.50
RX107 / RXF107	22	4	349	600	4.20	7330	1.40
R107 / RF107	22	4	73	2880	20.07	19300	1.50
R107 / RF107	22	4	65	3240	22.62	19700	1.35
R107 / RF107	22	4	59	3570	24.90	20000	1.20
R107 / RF107	22	4	50	4230	29.49	20400	1.00
R107 / RF107	22	4	42	5060	35.26	7280	0.85
RX107 / RXF107	30	4	1020	280	1.44	5520	2.3
RX107 / RXF107	30	4	860	335	1.71	5720	2.1
RX107 / RXF107	30	4	752	380	1.95	5870	2.0
RX107 / RXF107	30	4	638	450	2.30	6050	1.85
RX107 / RXF107	30	4	557	515	2.64	6180	1.60
RX107 / RXF107	30	4	479	600	3.07	6310	1.40
RX107 / RXF107	30	4	434	660	3.38	6370	1.25
R107 / RF107	37	4	299	1180	4.92	13400	2.5
R107 / RF107	37	4	252	1400	5.82	14000	2.1
R107 / RF107	37	4	221	1600	6.66	14400	1.85
R107 / RF107	37	4	187	1890	7.86	15000	1.55
R107 / RF107	37	4	172	2060	8.56	14700	2.1
R107 / RF107	37	4	145	2430	10.13	15100	1.75
R107 / RF107	37	4	127	2790	11.59	15400	1.55
R107 / RF107	37	4	108	3280	13.66	15700	1.30
R107 / RF107	37	4	94	3760	15.65	15900	1.15
R107 / RF107	37	4	81	4380	18.21	16100	1.00
R107 / RF107	37	4	73	4820	20.07	16100	0.90
R107 / RF107	45	4	299	1440	4.92	13100	2.0
R107 / RF107	45	4	252	1700	5.82	13600	1.75
R107 / RF107	45	4	221	1950	6.66	14000	1.50
R107 / RF107	45	4	187	2300	7.86	14400	1.30
R107 / RF107	45	4	172	2500	8.56	14000	1.70
R107 / RF107	45	4	145	2960	10.13	14300	1.45
R107 / RF107	45	4	127	3390	11.59	14400	1.25
R107 / RF107	45	4	108	3990	13.66	14600	1.10
R107 / RF107	45	4	94	4580	15.65	14600	0.95

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

No confirmed catalogue rows in this ratio group for this frame.

Frame 137: torque 1240–10100 N·m; standard and combined selections

Frame 137 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF
Output torque	1240–10100 N·m
Ratio envelope	5.15–8784
Motor power	0.18–55.0 kW
Output speed	0.15–286.0 r/min
Weight	235.0 kg

Source: HaoRan RSKF catalogue 2024, p. 23–50.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R137 / RF137	2.2	8	6.8	3100	103.20	60300	2.6
R137 / RF137	2.2	8	6.2	3410	113.72	60000	2.3
R137 / RF137	2.2	8	5.5	3850	128.18	59600	2.1
R137 / RF137	3.0	8	8.1	3530	88.70	59900	2.3
R137 / RF137	3.0	6	9.1	3150	103.20	60200	2.5
R137 / RF137	3.0	8	7.0	4110	103.20	59400	1.95
R137 / RF137	3.0	8	6.3	4520	113.72	59000	1.75
R137 / RF137	3.0	6	8.3	3470	113.75	60000	2.3
R137 / RF137	3.0	6	7.3	3910	128.18	59600	2.0
R137 / RF137	3.0	8	5.6	5100	128.18	58300	1.55
R137 / RF137	7.5	4	32	2710	44.39	60500	3.0
R137 / RF137	7.5	4	13	5700	113.72	57500	1.40
R137 / RF137	7.5	4	11	6420	128.18	56400	1.25
R137 / RF137	7.5	4	10	7070	141.12	55200	1.15
R137 / RF137	7.5	4	9.1	7830	156.31	53700	1.00
R137 / RF137	7.5	4	8.2	8730	174.40	50800	0.90
R137 / RF137	7.5	4	7.6	9440	188.45	45300	0.85
R137 / RF137	18.5	4	87	2030	16.80	60900	4.0
R137 / RF137	18.5	4	77	2300	19.04	60800	3.5
R137 / RF137	18.5	4	67	2650	22.00	60600	3.0
R137 / RF137	18.5	4	61	2910	24.12	60400	2.8
R137 / RF137	18.5	4	50	3570	29.57	59900	2.2
R137 / RF137	22	4	114	1840	12.83	61000	4.3
R137 / RF137	22	4	101	2080	14.51	60900	3.8
R137 / RF137	22	4	87	2410	16.80	60700	3.3
R137 / RF137	22	4	53	3990	27.83	59500	1.90
R137 / RF137	22	4	45	4720	32.91	58700	1.70
R137 / RF137	22	4	39	5400	37.65	57900	1.50
R137 / RF137	22	4	33	6370	44.39	56500	1.25
R137 / RF137	22	4	29	7290	50.86	54800	1.10
R137 / RF137	30	4	230	1240	6.38	51300	4.1
R137 / RF137	30	4	194	1480	7.59	53300	3.5
R137 / RF137	30	4	136	2100	10.79	56600	3.8
R137 / RF137	30	4	115	2500	12.83	58400	3.2
R137 / RF137	30	4	101	2830	14.51	59500	2.8
R137 / RF137	37	4	285	1240	5.15	47800	3.7
R137 / RF137	37	4	230	1530	6.38	50100	3.3
R137 / RF137	37	4	194	1820	7.59	51900	2.8
R137 / RF137	37	4	169	2090	8.71	52600	3.7
R137 / RF137	37	4	136	2590	10.79	54400	3.1
R137 / RF137	37	4	115	3080	12.83	55800	2.6
R137 / RF137	37	4	101	3490	14.51	56600	2.3
R137 / RF137	37	4	88	4040	16.80	57300	2.0
R137 / RF137	37	4	77	4580	19.04	57800	1.75
R137 / RF137	37	4	67	5290	22.00	58000	1.50
R137 / RF137	37	4	61	5800	24.12	57300	1.40
R137 / RF137	45	4	285	1510	5.15	46700	3.0
R137 / RF137	45	4	230	1860	6.38	48700	2.7
R137 / RF137	45	4	194	2220	7.59	50200	2
R137 / RF137	45	4	169	2550	8.71	50500	3.1
R137 / RF137	45	4	136	3150	10.79	51900	2.5
R137 / RF137	45	4	115	3750	12.83	52800	2.1
R137 / RF137	45	4	101	4240	14.51	53200	1.90
R137 / RF137	45	4	88	4910	16.80	53400	1.65
R137 / RF137	45	4	77	5570	19.04	53300	1.45
R137 / RF137	45	4	67	6430	22.00	52900	1.25
R137 / RF137	45	4	61	7050	24.12	52400	1.15
R137 / RF137	55	4	286	1830	5.15	45200	2.5
R137 / RF137	55	4	231	2270	6.38	46900	2.2
R137 / RF137	55	4	194	2700	7.59	48100	1.90
R137 / RF137	55	4	169	3100	8.71	48000	2.5
R137 / RF137	55	4	137	3840	10.79	48800	2.1
R137 / RF137	55	4	115	4570	12.83	49000	1.75

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
RF137	0.18	4	0.34	4000	3928	59500	2.0
RF137	0.18	4	0.30	4540	4464	58900	1.75
RF137	0.18	4	0.26	5370	5116	57900	1.50
RF137	0.18	4	0.23	5840	5834	57300	1.35
RF137	0.18	4	0.20	6880	6559	55600	1.15
RF137	0.18	4	0.18	7490	7479	54400	1.05
RF137	0.18	4	0.15	8930	8784	49900	0.90

Frame 147: torque 700–16100 N·m; standard and combined selections

Frame 147 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF
Output torque	700–16100 N·m
Ratio envelope	5.0–8443
Motor power	0.18–75.0 kW
Output speed	0.16–296.0 r/min
Weight	360.0 kg

Source: HaoRan RSKF catalogue 2024, p. 23–50.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R147 / RF147	7.5	6	12	6230	83.47	72000	2.1
R147 / RF147	7.5	6	10	700	94.60	71300	1.85
R147 / RF147	7.5	6	8.8	8150	109.31	70100	1.60
R147 / RF147	7.5	4	12	7310	119.86	71000	1.80
R147 / RF147	7.5	4	9.8	8960	146.91	69200	1.45
R147 / RF147	7.5	4	9.0	7290	159	71000	1.80
R147 / RF147	7.5	4	8.8	9960	163.31	67800	1.30
R147 / RF147	7.5	4	7.6	8680	189	69500	1.50
R147 / RF147	7.5	4	6.7	9810	214	68000	1.30
R147 / RF147	7.5	4	5.8	11400	247	65700	1.15
R147 / RF147	7.5	4	5.1	12900	280	62900	1.00
R147 / RF147	11.0	4	27	3860	52.87	73600	3.4
R147 / RF147	11.0	4	24	4460	61.09	73300	2.9
R147 / RF147	11.0	4	22	4890	66.99	73000	2.7
R147 / RF147	11.0	4	20	5260	72.09	72800	2.5
R147 / RF147	11.0	4	17	6090	83.47	72100	2.1
R147 / RF147	11.0	6	12	9130	83.47	39000	1.40
R147 / RF147	11.0	4	15	6900	94.60	71400	1.90
R147 / RF147	11.0	6	10	10400	94.60	67300	1.25
R147 / RF147	11.0	4	13	7970	109.31	70300	1.65
R147 / RF147	11.0	6	8.8	12000	109.31	64600	1.10
R147 / RF147	11.0	4	12	8740	119.86	69400	1.50
R147 / RF147	11.0	6	8.0	13100	119.86	62400	1.00
R147 / RF147	11.0	4	9.8	10700	146.91	66700	1.20
R147 / RF147	11.0	6	6.5	16100	146.91	35400	0.80
R147 / RF147	11.0	4	8.8	11900	163.31	64700	1.10
R147 / RF147	22	4	49	4300	29.95	73400	3.0
R147 / RF147	22	4	41	5110	35.64	72900	2.5
R147 / RF147	22	4	36	5780	40.29	72400	2.2
R147 / RF147	22	4	31	6690	46.65	71600	1.95
R147 / RF147	22	4	28	7580	52.87	70800	1.70
R147 / RF147	22	4	24	8760	61.09	69400	1.50
R147 / RF147	22	4	22	9610	66.99	68300	1.35
R147 / RF147	22	4	20	10300	72.09	67300	1.25
R147 / RF147	22	4	18	12000	83.47	64600	1.10
R147 / RF147	22	4	15	13600	94.60	61500	0.95
R147 / RF147	22	4	13	15700	109.31	41300	0.85
R147 / RF147	30	4	94	3050	15.64	74000	4.3
R147 / RF147	30	4	82	3510	18.04	73800	3.0
R147 / RF147	30	4	72	3980	20.44	73600	3.0
R147 / RF147	30	4	61	4710	24.19	73100	2.5
R147 / RF147	30	4	49	5840	29.95	72300	2.2
R147 / RF147	30	4	41	6950	35.64	71400	1.85
R147 / RF147	30	4	36	7850	40.29	70500	1.65
R147 / RF147	30	4	32	9090	46.65	69000	1.45
R147 / RF147	30	4	28	10300	52.87	67300	1.25
RF147	37	4	94	3760	15.64	73700	3.5
RF147	37	4	82	4340	18.04	73400	2.4
RF147	37	4	72	4910	20.44	73000	2.4
R147 / RF147	37	4	61	5810	24.19	72400	2.0
R147 / RF147	37	4	49	7200	29.95	71100	1.80
R147 / RF147	37	4	41	8570	35.64	69700	1.50
R147 / RF147	37	4	36	9680	40.29	68200	1.35
R147 / RF147	37	4	32	11200	46.65	65900	1.15
R147 / RF147	37	4	28	12700	52.87	63200	1.00
R147 / RF147	37	4	24	14700	61.09	54200	0.90
R147 / RF147	37	4	22	16100	66.99	35000	0.80
R147 / RF147	45	4	203	2120	7.25	74300	4.1
R147 / RF147	45	4	123	3510	11.99	73800	3.7
R147 / RF147	45	4	106	4070	13.91	73500	3.1
R147 / RF147	45	4	94	4570	15.64	73200	2.8
R147 / RF147	45	4	82	5270	18.04	72800	2.0
R147 / RF147	45	4	72	5970	20.44	72200	2.0
R147 / RF147	55	4	250	2100	5.89	72500	4.1
R147 / RF147	55	4	203	2580	7.25	74200	3.4
R147 / RF147	55	4	151	3470	9.74	73800	3.8
R147 / RF147	55	4	123	4270	11.99	73400	3.0
RF147	55	4	106	4950	13.91	73000	2.5
RF147	55	4	94	5570	15.64	72500	2.3
RF147	55	4	82	6420	18.04	71900	1.65
RF147	55	4	72	7280	20.44	71100	1.65
R147 / RF147	75	4	296	2420	5.00	67600	3.6
R147 / RF147	75	4	251	2850	5.89	70100	3
R147 / RF147	75	4	204	3510	7.25	73100	2.5
R147 / RF147	75	4	152	4710	9.74	73100	2.8
R147 / RF147	75	4	123	5800	11.99	72400	2.2
R147 / RF147	75	4	61	11700	24.19	65100	1.00
R147 / RF147	75	4	49	14500	29.95	56500	0.90

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R147 / RF147	0.18	4	0.40	3380	3302	73800	3.8
R147 / RF147	0.18	4	0.35	3900	3754	73600	3.3
R147 / RF147	0.18	4	0.24	5660	5568	72500	2.3
R147 / RF147	0.18	4	0.20	6560	6447	71700	2.0
R147 / RF147	0.18	4	0.18	7430	7307	70900	1.75
R147 / RF147	0.18	4	0.16	8590	8443	69600	1.50
R147 / RF147	7.5	4	4.4	15000	326	50100	0.85

Frame 167: torque 4080–23100 N·m; standard and combined selections

Frame 167 envelope

Confirmed catalogue envelope	Value
Variants observed	R, RF
Output torque	4080–23100 N·m
Ratio envelope	10.24–503
Motor power	7.5–160.0 kW
Output speed	2.8–145.0 r/min
Weight	605.0 kg

Source: HaoRan RSKF catalogue 2024, p. 43–51.

Standard units

These rows have a recorded ratio below 300 and describe the standard single-reducer selection group.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R167 / RF167	7.5	8	5.9	12100	121.81	120000	1.50
R167 / RF167	7.5	8	5.1	13900	139.98	120000	1.30
R167 / RF167	7.5	8	4.7	15200	153.07	120000	1.20
R167 / RF167	7.5	8	3.8	18600	186.93	120000	0.95
R167 / RF167	7.5	4	5.1	12800	279	120000	1.40
R167 / RF167	11.0	4	7.9	13300	121.81	120000	1.35
R167 / RF167	11.0	4	6.9	15300	139.98	120000	1.20
R167 / RF167	11.0	4	6.3	16700	153.07	120000	1.05
R167 / RF167	11.0	4	5.1	20500	186.93	120000	0.90
R167 / RF167	15.0	4	22	6610	67.40	120000	2.7
R167 / RF167	15.0	4	20	7230	73.70	120000	2.5
R167 / RF167	15.0	4	18	8130	82.91	120000	2.2
R167 / RF167	15.0	4	16	9140	93.19	120000	1.95
R167 / RF167	15.0	4	14	10500	107.49	120000	1.70
R167 / RF167	15.0	4	12	12000	121.81	120000	1.50
R167 / RF167	15.0	4	10	13700	139.98	120000	1.30
R167 / RF167	15.0	4	9.5	15000	153.07	120000	1.20
R167 / RF167	15.0	4	7.8	18300	186.93	120000	1.00
R167 / RF167	15.0	4	6.4	22500	229.71	120000	0.80
R167 / RF167	18.5	4	25	7070	58.65	120000	2.5
R167 / RF167	18.5	4	22	8130	67.40	120000	2.2
R167 / RF167	18.5	4	20	8890	73.70	120000	2.0
RF167	22	4	33	6430	44.87	120000	2.8
RF167	22	4	28	7420	51.76	120000	2.4
RF167	22	4	25	8410	58.65	120000	2.1
RF167	22	4	22	9670	67.40	120000	1.85
RF167	22	4	20	10600	73.70	120000	1.70
RF167	22	4	18	11900	82.91	120000	1.50
RF167	22	4	16	13400	93.19	120000	1.35
RF167	22	4	14	15400	107.49	120000	1.15
R167 / RF167	22	4	12	17500	121.81	120000	1.05
R167 / RF167	22	4	10	20100	139.98	120000	0.90
R167 / RF167	22	4	9.6	22000	153.07	120000	0.80
R167 / RF167	30	4	62	4620	23.71	120000	3.9
R167 / RF167	30	4	53	5450	27.96	120000	3.3
R167 / RF167	30	4	43	6710	34.41	120000	2.7
R167 / RF167	30	4	37	7780	39.92	120000	2.3
R167 / RF167	30	4	33	8740	44.87	120000	2.1
R167 / RF167	30	4	28	10100	51.76	120000	1.80
R167 / RF167	30	4	25	11400	58.65	120000	1.55
R167 / RF167	30	4	22	13100	67.40	120000	1.35
R167 / RF167	30	4	20	14400	73.70	120000	1.25
R167 / RF167	30	4	18	16200	82.91	120000	1.10
R167 / RF167	30	4	16	18200	93.19	120000	1.00
R167 / RF167	30	4	14	20900	107.49	120000	0.85
R167 / RF167	37	4	87	4080	16.98	120000	3.7
R167 / RF167	37	4	77	4580	19.03	120000	3.5
R167 / RF167	37	4	67	5250	21.85	120000	2.5
R167 / RF167	37	4	60	5900	24.57	120000	2.4
R167 / RF167	37	4	53	6720	27.96	120000	2.7
R167 / RF167	37	4	48	7380	30.71	120000	1.35
R167 / RF167	37	4	43	8270	34.41	120000	2.2
R167 / RF167	37	4	37	9600	39.92	120000	1.90
R167 / RF167	37	4	33	10800	44.87	120000	1.65
R167 / RF167	37	4	28	12400	51.76	120000	1.45
R167 / RF167	37	4	25	14100	58.65	120000	1.30
R167 / RF167	37	4	22	16200	67.40	120000	1.10
R167 / RF167	37	4	20	17700	73.70	120000	1.00
R167 / RF167	37	4	18	19900	82.91	120000	0.90
R167 / RF167	37	4	16	22400	93.19	120000	0.80
R167 / RF167	45	4	87	4960	16.98	120000	3.0
R167 / RF167	45	4	77	5560	19.03	120000	2.9
R167 / RF167	45	4	67	6390	21.85	120000	2.0
R167	45	4	62	6930	23.71	120000	2.6
R167 / RF167	45	4	60	7180	24.57	120000	1.95
R167	45	4	53	8170	27.96	120000	2.2
R167 / RF167	45	4	48	8980	30.71	120000	1.10
R167	45	4	43	10100	34.41	120000	1.80
R167	45	4	37	11700	39.92	120000	1.55
R167	45	4	33	13100	44.87	120000	1.35
RF167	55	4	123	4270	11.99	120000	4.0
RF167	55	4	102	5150	14.48	120000	3.5
RF167	55	4	87	6050	16.98	120000	2.5
RF167	55	4	77	6780	19.03	120000	2.4
RF167	55	4	68	7780	21.85	120000	1.65
RF167	55	4	62	8440	23.71	120000	2.1
RF167	55	4	60	8750	24.57	120000	1.60
RF167	55	4	53	9960	27.96	120000	1.80
RF167	55	4	43	12300	34.41	120000	1.45
RF167	55	4	37	14200	39.92	120000	1.25
RF167	55	4	33	16000	44.87	120000	1.15
RF167	55	4	29	18400	51.76	120000	1.00
RF167	55	4	25	20900	58.65	120000	0.85
R167 / RF167	75	4	145	4950	10.24	112800	3.4
R167 / RF167	75	4	123	5800	11.99	116600	2.9
R167 / RF167	75	4	102	7000	14.48	120000	2.6
R167 / RF167	75	4	87	8220	16.98	120000	1.85
RF167	75	4	78	9210	19.03	120000	1.75
RF167	75	4	68	10600	21.85	120000	1.25
RF167	75	4	60	11900	24.57	120000	1.20
R167 / RF167	110	4	145	7240	10.24	106500	2.3
R167 / RF167	110	4	124	8480	11.99	109300	2.0
R167 / RF167	110	4	103	10200	14.48	112200	1.75
R167 / RF167	110	4	87	12000	16.98	114300	1.25
R167 / RF167	110	4	78	13500	19.03	115500	1.20
R167 / RF167	110	4	63	16800	23.71	116900	1.05
R167 / RF167	110	4	53	19800	27.96	117100	0.90
R167 / RF167	132	4	145	8690	10.24	102600	1.95
R167 / RF167	132	4	124	10200	11.99	104700	1.65
R167 / RF167	132	4	103	12300	14.48	106700	1.45
R167 / RF167	132	4	87	14400	16.98	107800	1.05
R167 / RF167	132	4	78	16200	19.03	108300	1.00
R167 / RF167	160	4	145	10500	10.24	97600	1.60

Combined units

These rows have a recorded ratio of 300 or higher. They are achieved by combining two gear reducers; they are shown separately so the high-ratio envelope is not represented as a single-unit claim.

Variants	Motor power (kW)	Poles	Output speed (r/min)	Output torque (N·m)	Ratio	Overhung load (N)	Service factor
R167 / RF167	7.5	4	4.7	13900	303	120000	1.30
R167 / RF167	7.5	4	4.3	15400	335	120000	1.15
R167 / RF167	7.5	4	3.8	17300	376	120000	1.05
R167 / RF167	7.5	4	3.3	19800	432	120000	0.90
R167 / RF167	7.5	4	2.8	23100	503	120000	0.80

How the data should be used

The values are catalogue envelopes and selection rows, not a promise that every configuration will fit every machine. The model designation, mounting form, output shaft, flange, service condition and installed dimensions must be reviewed together. Send the nameplate and installation photos of the existing unit with the driven-machine application before order confirmation.

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R, F, K or S: start with shaft layout

F series parallel-shaft helical gearbox, flange-mounted — F series

K series helical-bevel gearbox, flange-mounted — K series

S series helical-worm gearbox, flange-mounted — S series

Review point	R	F	K	S
Axis relationship	Coaxial input and output.Source: R SERIES product guidance — opening paragraph	Parallel shafts; offset output.Source: F SERIES product guidance — opening paragraph	Right-angle transmission.Source: K SERIES product guidance — opening paragraph	Right-angle transmission.Source: S SERIES product guidance — opening paragraph
Output shaft	Solid output shaft shown; confirm the selected shaft.Source: HaoRan catalogue 2026, e-page 8	Solid output shaft shown in the product photograph; confirm the selected shaft.Source: product photograph — CF; visible projecting output shaft; family photograph only	Solid-shaft K and hollow-shaft KA forms illustrated; confirm the selected form.Source: HaoRan catalogue 2026, e-page 8	Solid output shaft shown; confirm the selected shaft.Source: HaoRan catalogue 2026, e-page 9
Typical mounting forms	R foot-mounted; RF flange-mounted.Source: R SERIES product guidance — Variant forms	FA shaft-mounted; FAF flange-mounted.Source: F SERIES product guidance — Variant forms	KA shaft-mounted; KAF and KF flange-oriented.Source: K SERIES product guidance — Variant forms	S foot-mounted; SA shaft-mounted; SAF flange-mounted.Source: S SERIES product guidance — Variant forms
Catalogue page	R and RF illustrated on e-page 8.Source: HaoRan catalogue 2026, e-page 8	F family listed in the heading on e-page 8; the product photograph identifies this example.Source: HaoRan catalogue 2026, e-page 8	K and KA illustrated on e-page 8.Source: HaoRan catalogue 2026, e-page 8	S and SAF illustrated on e-page 9.Source: HaoRan catalogue 2026, e-page 9

The illustrated shaft and mounting forms identify product families. Confirm the selected variant against the machine interface and drawing.

Factory context

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R series · inline helical drive

Select the structure before the designation

Typical machine context

Identify the mounting form

R · foot-mounted form

Technical information and selection details

Current captured catalogue range

Output torque

Ratio

Motor power

Output speed

Variant forms

Catalogue selection tables by frame

Frame 17 envelope

Standard units

Combined units

Frame 27 envelope

Standard units

Combined units

Frame 37 envelope

Standard units

Combined units

Frame 47 envelope

Standard units

Combined units

Frame 57 envelope

Standard units

Combined units

Frame 67 envelope

Standard units

Combined units

Frame 77 envelope

Standard units

Combined units

Frame 87 envelope

Standard units

Combined units

Frame 97 envelope

Standard units

Combined units

Frame 107 envelope

Standard units

Combined units

Frame 137 envelope

Standard units

Combined units

Frame 147 envelope

Standard units

Combined units

Frame 167 envelope

Standard units

Combined units

How the data should be used

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R, F, K or S: start with shaft layout

Inside the workshop

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