S series · helical-worm drive
A helical input stage and worm stage turn the drive through a right angle.
- Helical input stage with a worm stage
- Right-angle transmission path
- S foot / SA shaft / SAF flange forms
New machine or no nameplate? Contact us.
The S family combines a helical input stage with a worm stage to turn the drive through a right angle. Its structure is useful where the motor cannot sit in line with the driven shaft and where the gearbox layout must turn the transmission path within the machine envelope.
Select the structure before the designation
A worm-stage application needs more than a designation match: the duty cycle, heat conditions, starting load and any back-driving or holding requirement need review with the driven equipment. The inherent self-locking tendency of a worm arrangement is application dependent and is not a substitute for confirming a separate holding or brake requirement.
Typical machine context
Typical inquiries include conveyors, material-handling auxiliaries, compact process machinery and equipment that needs a right-angle motor position. 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
S · catalogue mounting form
Catalogue view of the S housing and shaft arrangement.
Source: HaoRan catalogue 2026, e-page 9
- S
- Standard foot-mounted arrangement.
- SA
- Shaft-mounted arrangement.
- SAF
- Flange-mounted arrangement.
- SF
- Flange-oriented arrangement for the applicable installation.
Technical information and selection details
Current captured catalogue range
Current captured catalogue range
Output torque
16–4550 N·m
Ratio
6.8–288
Motor power
0.18–22 kW
Output speed
2.4–203 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
Variant forms
S is the standard foot-mounted arrangement. SA is shaft-mounted, SAF is flange-mounted, and SF is the flange-oriented arrangement used for the applicable installation. The installation form must be checked with the customer’s equipment drawing.
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.
No catalogue rows match these filters. Clear filters to review all captured rows.
Frame 37: torque 16–101 N·m; standard and combined selections
Frame 37 envelope
| Confirmed catalogue envelope | Value |
|---|---|
| Variants observed | S, SA, SAF, SF |
| Output torque | 16–101 N·m |
| Ratio envelope | 6.8–51 |
| Motor power | 0.37 kW |
| Output speed | 27.0–203.0 r/min |
| Weight | 6.0–8.0 kg |
Source: HaoRan RSKF catalogue 2024, p. 92.
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 |
|---|---|---|---|---|---|---|---|
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 203 | 16 | 6.80 | 2070 | 2.7 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 173 | 18 | 8.00 | 2150 | 2.5 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 153 | 21 | 9.02 | 2220 | 2.2 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 135 | 23 | 10.23 | 2280 | 2.0 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 127 | 25 | 10.91 | 2320 | 1.95 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 111 | 28 | 12.48 | 2390 | 1.70 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 103 | 30 | 13.39 | 2420 | 1.60 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 89 | 35 | 15.53 | 2500 | 1.45 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 76 | 41 | 18.24 | 2570 | 1.30 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 69 | 44 | 19.89 | 2610 | 1.20 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 61 | 47 | 22.50 | 2870 | 1.55 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 54 | 52 | 25.38 | 2940 | 1.40 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 48 | 59 | 28.76 | 3000 | 1.30 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 45 | 63 | 30.68 | 3000 | 1.20 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 39 | 71 | 35.10 | 3000 | 1.10 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 37 | 76 | 37.66 | 3000 | 1.05 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 32 | 87 | 43.68 | 3000 | 0.95 |
| S37 / SF37 / SA37 / SAF37 | 0.37 | 4 | 27 | 101 | 51.30 | 3000 | 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 47: torque 32–205 N·m; standard and combined selections
Frame 47 envelope
| Confirmed catalogue envelope | Value |
|---|---|
| Variants observed | S, SA, SAF, SF |
| Output torque | 32–205 N·m |
| Ratio envelope | 9.23–185 |
| Motor power | 0.25–0.55 kW |
| Output speed | 7.0–147.0 r/min |
| Weight | 10.0–14.0 kg |
Source: HaoRan RSKF catalogue 2024, p. 90–92.
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 |
|---|---|---|---|---|---|---|---|
| S47 / SF47 / SA47 / SAF47 | 0.18 | 6 | 6.8 | 144 | 128.10 | 5470 | 1.20 |
| S47 / SF47 / SA47 / SAF47 | 0.18 | 6 | 4.3 | 215 | 201.00 | 5090 | 0.85 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 27 | 68 | 47.32 | 5760 | 2.3 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 24 | 78 | 54.59 | 5720 | 2.0 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 20 | 90 | 63.80 | 5670 | 1.70 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 19 | 80 | 67.20 | 5740 | 2.1 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 19 | 97 | 69.39 | 5640 | 1.60 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 18 | 85 | 71.75 | 5720 | 1.95 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 15 | 98 | 84.00 | 5670 | 1.70 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 14 | 108 | 94.08 | 5630 | 1.55 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 12 | 124 | 110.73 | 5560 | 1.35 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 10 | 141 | 128.10 | 5480 | 1.20 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 9.5 | 150 | 137.05 | 5440 | 1.10 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 8.2 | 170 | 158.12 | 5340 | 1.00 |
| S47 / SF47 / SA47 / SAF47 | 0.25 | 4 | 7.0 | 195 | 184.80 | 5210 | 0.85 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 147 | 32 | 9.23 | 3270 | 3.4 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 126 | 37 | 10.80 | 3400 | 2.9 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 112 | 42 | 12.10 | 3500 | 2.6 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 96 | 49 | 14.24 | 3630 | 2.2 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 83 | 56 | 16.47 | 3750 | 1.95 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 77 | 60 | 17.62 | 3810 | 1.85 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 67 | 69 | 20.33 | 3920 | 1.60 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 59 | 74 | 23.20 | 4310 | 2.1 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 55 | 78 | 24.77 | 4380 | 2.0 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 47 | 91 | 29.00 | 4540 | 1.70 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 42 | 101 | 32.48 | 4650 | 1.55 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 36 | 118 | 38.23 | 4810 | 1.30 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 31 | 135 | 44.22 | 4950 | 1.15 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 29 | 144 | 47.32 | 5010 | 1.10 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 25 | 165 | 54.59 | 5130 | 0.95 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 20 | 169 | 67.20 | 5350 | 1.00 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 19 | 179 | 71.75 | 5290 | 0.95 |
| S47 / SF47 / SA47 / SAF47 | 0.55 | 4 | 16 | 205 | 84.00 | 5140 | 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 57: torque 101–360 N·m; standard and combined selections
Frame 57 envelope
| Confirmed catalogue envelope | Value |
|---|---|
| Variants observed | S, SA, SAF, SF |
| Output torque | 101–360 N·m |
| Ratio envelope | 7.28–201 |
| Motor power | 0.18–3.0 kW |
| Output speed | 4.4–192.0 r/min |
| Weight | 14.0–18.0 kg |
Source: HaoRan RSKF catalogue 2024, p. 90–96.
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 |
|---|---|---|---|---|---|---|---|
| SF57 / SA57 / SAF57 | 0.18 | 4 | 7.1 | 143 | 184.80 | 8050 | 2.1 |
| SF57 / SA57 / SAF57 | 0.18 | 4 | 6.6 | 154 | 201.00 | 8010 | 1.90 |
| SF57 / SA57 / SAF57 | 0.25 | 4 | 15 | 101 | 84.00 | 8190 | 2.9 |
| SF57 / SA57 / SAF57 | 0.25 | 4 | 14 | 111 | 94.08 | 8160 | 2.7 |
| SF57 / SA57 / SAF57 | 0.25 | 4 | 12 | 129 | 110.73 | 8110 | 2.3 |
| SF57 / SA57 / SAF57 | 0.25 | 4 | 10 | 146 | 128.10 | 8040 | 2.0 |
| SF57 / SA57 / SAF57 | 0.25 | 6 | 6.9 | 205 | 128.10 | 7760 | 1.45 |
| SF57 / SA57 / SAF57 | 0.25 | 4 | 9.5 | 155 | 137.05 | 8010 | 1.90 |
| SF57 / SA57 / SAF57 | 0.25 | 6 | 6.4 | 220 | 137.05 | 7690 | 1.35 |
| SF57 / SA57 / SAF57 | 0.25 | 4 | 8.2 | 176 | 158.12 | 7920 | 1.70 |
| SF57 / SA57 / SAF57 | 0.25 | 6 | 5.6 | 245 | 158.12 | 7510 | 1.20 |
| SF57 / SA57 / SAF57 | 0.25 | 4 | 7.0 | 200 | 184.80 | 7790 | 1.45 |
| SF57 / SA57 / SAF57 | 0.25 | 6 | 4.8 | 285 | 184.80 | 7230 | 1.05 |
| SF57 / SA57 / SAF57 | 0.25 | 4 | 6.5 | 215 | 201.00 | 7700 | 1.35 |
| SF57 / SA57 / SAF57 | 0.25 | 6 | 4.4 | 305 | 201.00 | 7050 | 1.00 |
| S57 / SF57 / SA57 / SAF57 | 0.37 | 6 | 11 | 205 | 84.00 | 7760 | 1.45 |
| S57 / SF57 / SA57 / SAF57 | 0.37 | 6 | 9.6 | 230 | 94.08 | 7630 | 1.30 |
| S57 / SF57 / SA57 / SAF57 | 0.37 | 6 | 8.1 | 265 | 110.73 | 7390 | 1.10 |
| S57 / SF57 / SA57 / SAF57 | 0.37 | 6 | 7.0 | 300 | 128.10 | 7100 | 1.00 |
| S57 / SF57 / SA57 / SAF57 | 0.37 | 6 | 6.6 | 315 | 137.05 | 6930 | 0.95 |
| S57 / SF57 / SA57 / SAF57 | 0.37 | 6 | 5.7 | 360 | 158.12 | 6490 | 0.80 |
| SF57 / SA57 / SAF57 | 0.55 | 6 | 24 | 176 | 38.23 | 7920 | 1.55 |
| SF57 / SA57 / SAF57 | 0.55 | 6 | 20 | 200 | 44.22 | 7790 | 1.35 |
| SF57 / SA57 / SAF57 | 0.55 | 6 | 19 | 215 | 47.32 | 7710 | 1.25 |
| SF57 / SA57 / SAF57 | 0.55 | 6 | 16 | 245 | 54.59 | 7520 | 1.10 |
| SF57 / SA57 / SAF57 | 0.55 | 6 | 13 | 250 | 67.20 | 7470 | 1.15 |
| SF57 / SA57 / SAF57 | 0.55 | 6 | 13 | 265 | 71.75 | 7360 | 1.10 |
| SF57 / SA57 / SAF57 | 0.55 | 6 | 11 | 305 | 84.00 | 7030 | 0.95 |
| SF57 / SA57 / SAF57 | 0.55 | 6 | 9.6 | 340 | 94.08 | 6710 | 0.85 |
| SF57 / SA57 / SAF57 | 3.0 | 4 | 192 | 136 | 7.28 | 3900 | 1.10 |
| SF57 / SA57 / SAF57 | 3.0 | 4 | 162 | 160 | 8.64 | 3960 | 1.05 |
| SF57 / SA57 / SAF57 | 3.0 | 4 | 152 | 171 | 9.23 | 3970 | 1.00 |
| SF57 / SA57 / SAF57 | 3.0 | 4 | 130 | 199 | 10.80 | 3990 | 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 67: torque 119–570 N·m; standard and combined selections
Frame 67 envelope
| Confirmed catalogue envelope | Value |
|---|---|
| Variants observed | S, SA, SAF, SF |
| Output torque | 119–570 N·m |
| Ratio envelope | 7.56–217 |
| Motor power | 0.18–4.0 kW |
| Output speed | 3.1–188.0 r/min |
| Weight | 25.0–32.0 kg |
Source: HaoRan RSKF catalogue 2024, p. 90–97.
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 |
|---|---|---|---|---|---|---|---|
| S67 / SF67 / SA67 / SAF67 | 0.18 | 6 | 4.6 | 225 | 190.11 | 10400 | 2.5 |
| S67 / SF67 / SA67 / SAF67 | 0.18 | 6 | 4.0 | 255 | 217.41 | 10300 | 2.2 |
| S67 / SF67 / SA67 / SAF67 | 0.25 | 8 | 4.3 | 330 | 158.45 | 9980 | 1.70 |
| SF67 / SA67 / SAF67 | 0.25 | 6 | 5.6 | 265 | 158.45 | 10300 | 2.1 |
| S67 / SF67 / SA67 / SAF67 | 0.25 | 8 | 3.8 | 370 | 180.60 | 9770 | 1.50 |
| SF67 / SA67 / SAF67 | 0.25 | 6 | 4.9 | 295 | 180.60 | 10100 | 1.90 |
| S67 / SF67 / SA67 / SAF67 | 0.25 | 8 | 3.6 | 390 | 190.11 | 9670 | 1.45 |
| SF67 / SA67 / SAF67 | 0.25 | 6 | 4.6 | 310 | 190.11 | 10100 | 1.80 |
| S67 / SF67 / SA67 / SAF67 | 0.25 | 8 | 3.1 | 435 | 217.41 | 9350 | 1.30 |
| SF67 / SA67 / SAF67 | 0.25 | 6 | 4.1 | 350 | 217.41 | 9890 | 1.60 |
| S67 / SF67 / SA67 / SAF67 | 0.37 | 6 | 5.7 | 380 | 158.45 | 9700 | 1.45 |
| S67 / SF67 / SA67 / SAF67 | 0.37 | 6 | 5.0 | 430 | 180.60 | 9400 | 1.30 |
| S67 / SF67 / SA67 / SAF67 | 0.37 | 6 | 4.7 | 450 | 190.11 | 9260 | 1.25 |
| S67 / SF67 / SA67 / SAF67 | 0.37 | 6 | 4.1 | 505 | 217.41 | 8810 | 1.10 |
| S67 / SF67 / SA67 / SAF67 | 0.55 | 4 | 21 | 205 | 65.63 | 10500 | 2.3 |
| S67 / SF67 / SA67 / SAF67 | 0.55 | 4 | 18 | 230 | 75.06 | 10400 | 2.1 |
| S67 / SF67 / SA67 / SAF67 | 0.55 | 4 | 16 | 230 | 85.83 | 10400 | 2.3 |
| S67 / SF67 / SA67 / SAF67 | 0.55 | 4 | 13 | 265 | 100.80 | 10300 | 1.95 |
| S67 / SF67 / SA67 / SAF67 | 0.55 | 4 | 13 | 275 | 106.75 | 10200 | 1.85 |
| S67 / SF67 / SA67 / SAF67 | 0.55 | 4 | 11 | 310 | 121.33 | 10100 | 1.65 |
| S67 / SF67 / SA67 / SAF67 | 0.55 | 4 | 10 | 340 | 134.40 | 9930 | 1.55 |
| S67 / SF67 / SA67 / SAF67 | 0.55 | 4 | 7.2 | 465 | 190.11 | 9150 | 1.10 |
| S67 / SF67 / SA67 / SAF67 | 0.55 | 4 | 6.3 | 520 | 217.41 | 8660 | 1.00 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 47 | 187 | 29.63 | 8330 | 2.6 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 40 | 220 | 34.80 | 8660 | 2.2 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 38 | 230 | 36.85 | 8780 | 2.1 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 33 | 260 | 41.89 | 9040 | 1.85 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 30 | 285 | 46.40 | 9240 | 1.65 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 26 | 335 | 54.70 | 9560 | 1.45 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 22 | 380 | 62.35 | 9720 | 1.25 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 21 | 400 | 65.63 | 9610 | 1.20 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 18 | 405 | 78.00 | 9550 | 1.30 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 16 | 445 | 85.83 | 9300 | 1.15 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 14 | 515 | 100.80 | 8740 | 1.00 |
| S67 / SF67 / SA67 / SAF67 | 1.1 | 4 | 13 | 540 | 106.75 | 8490 | 0.95 |
| S67 / SF67 / SA67 / SAF67 | 1.5 | 4 | 21 | 540 | 65.63 | 8510 | 0.90 |
| S67 / SF67 / SA67 / SAF67 | 1.5 | 4 | 18 | 550 | 78.00 | 8390 | 0.95 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 162 | 119 | 8.69 | 5300 | 2.8 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 141 | 137 | 10.03 | 5450 | 2.5 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 128 | 151 | 11.03 | 5550 | 2.3 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 109 | 176 | 12.96 | 5710 | 1.95 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 103 | 186 | 13.73 | 5770 | 1.85 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 90 | 210 | 15.60 | 5880 | 1.60 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 82 | 235 | 17.28 | 5960 | 1.45 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 69 | 275 | 20.37 | 6060 | 1.25 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 60 | 295 | 23.33 | 6920 | 1.60 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 52 | 340 | 26.93 | 7080 | 1.40 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 48 | 370 | 29.63 | 7180 | 1.30 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 41 | 435 | 34.80 | 7320 | 1.10 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 38 | 460 | 36.85 | 7360 | 1.05 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 34 | 515 | 41.89 | 7440 | 0.95 |
| S67 / SF67 / SA67 / SAF67 | 2.2 | 4 | 30 | 570 | 46.40 | 7480 | 0.85 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 185 | 143 | 7.56 | 4830 | 2.1 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 161 | 164 | 8.69 | 4940 | 2.0 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 140 | 188 | 10.03 | 5050 | 1.80 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 127 | 205 | 11.03 | 5100 | 1.65 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 108 | 240 | 12.96 | 5190 | 1.40 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 102 | 255 | 13.73 | 5210 | 1.35 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 90 | 290 | 15.60 | 5240 | 1.15 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 81 | 320 | 17.28 | 5250 | 1.05 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 69 | 375 | 20.37 | 5230 | 0.90 |
| SF67 / SA67 / SAF67 | 3.0 | 4 | 60 | 405 | 23.33 | 6270 | 1.20 |
| S67 / SF67 / SA67 / SAF67 | 4.0 | 4 | 188 | 188 | 7.56 | 4430 | 55 |
| S67 / SF67 / SA67 / SAF67 | 4.0 | 4 | 129 | 270 | 11.03 | 4530 | 25 |
| S67 / SF67 / SA67 / SAF67 | 4.0 | 4 | 110 | 320 | 12.96 | 4520 | 1 |
| S67 / SF67 / SA67 / SAF67 | 4.0 | 4 | 103 | 335 | 13.73 | 4500 | 1.00 |
| S67 / SF67 / SA67 / SAF67 | 4.0 | 4 | 91 | 380 | 15.60 | 4180 | 0.90 |
| S67 / SF67 / SA67 / SAF67 | 4.0 | 4 | 82 | 420 | 17.28 | 3810 | 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 77: torque 205–1250 N·m; standard and combined selections
Frame 77 envelope
| Confirmed catalogue envelope | Value |
|---|---|
| Variants observed | S, SA, SAF, SF |
| Output torque | 205–1250 N·m |
| Ratio envelope | 8.06–225 |
| Motor power | 0.37–7.5 kW |
| Output speed | 3.0–177.0 r/min |
| Weight | 45.0–55.0 kg |
Source: HaoRan RSKF catalogue 2024, p. 91–98.
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 |
|---|---|---|---|---|---|---|---|
| SF77 / SA77 / SAF77 | 0.37 | 8 | 4.2 | 545 | 161.60 | 15900 | 2.3 |
| SF77 / SA77 / SAF77 | 0.37 | 8 | 3.6 | 630 | 189.09 | 15600 | 2.0 |
| SF77 / SA77 / SAF77 | 0.37 | 8 | 3.2 | 700 | 214.00 | 15300 | 1.80 |
| SF77 / SA77 / SAF77 | 0.55 | 4 | 7.2 | 505 | 189.09 | 16000 | 2.5 |
| SF77 / SA77 / SAF77 | 0.55 | 4 | 6.4 | 560 | 214.00 | 15800 | 2.3 |
| SF77 / SA77 / SAF77 | 0.55 | 8 | 3.0 | 1090 | 225.26 | 13200 | 1.15 |
| S77 / SF77 / SA77 / SAF77 | 0.75 | 4 | 13 | 405 | 107.83 | 16000 | 2.9 |
| S77 / SF77 / SA77 / SAF77 | 0.75 | 4 | 11 | 460 | 123.20 | 16000 | 2.6 |
| S77 / SF77 / SA77 / SAF77 | 0.75 | 4 | 11 | 480 | 130.00 | 16000 | 2.5 |
| S77 / SF77 / SA77 / SAF77 | 0.75 | 4 | 9.3 | 545 | 148.15 | 15900 | 2.3 |
| S77 / SF77 / SA77 / SAF77 | 0.75 | 4 | 8.5 | 585 | 161.60 | 15800 | 2.2 |
| SF77 / SA77 / SAF77 | 0.75 | 6 | 5.6 | 860 | 161.60 | 14600 | 1.45 |
| S77 / SF77 / SA77 / SAF77 | 0.75 | 4 | 7.3 | 675 | 189.09 | 15400 | 1.90 |
| SF77 / SA77 / SAF77 | 0.75 | 6 | 4.8 | 990 | 189.09 | 13900 | 1.30 |
| S77 / SF77 / SA77 / SAF77 | 0.75 | 4 | 6.4 | 755 | 214.00 | 15100 | 1.70 |
| SF77 / SA77 / SAF77 | 0.75 | 6 | 4.2 | 1110 | 214.00 | 13100 | 1.15 |
| S77 / SF77 / SA77 / SAF77 | 0.75 | 4 | 6.1 | 790 | 225.26 | 14900 | 1.60 |
| SF77 / SA77 / SAF77 | 0.75 | 6 | 4.0 | 1160 | 225.26 | 12700 | 1.10 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 131 | 205 | 10.65 | 7670 | 3.5 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 116 | 230 | 12.07 | 7870 | 3.1 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 102 | 260 | 13.76 | 8060 | 2.7 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 92 | 290 | 15.28 | 8210 | 2.5 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 80 | 330 | 17.45 | 8390 | 2.2 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 76 | 345 | 18.42 | 8450 | 2.0 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 67 | 395 | 20.99 | 8590 | 1.80 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 61 | 430 | 22.89 | 8680 | 1.65 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 56 | 455 | 25.07 | 9840 | 2.2 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 49 | 515 | 28.41 | 10100 | 2.0 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 43 | 585 | 32.38 | 10300 | 1.85 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 39 | 645 | 35.94 | 10400 | 1.70 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 34 | 735 | 41.07 | 10600 | 1.50 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 32 | 770 | 43.33 | 10700 | 1.40 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 28 | 880 | 49.38 | 10800 | 1.25 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 26 | 950 | 53.87 | 10800 | 1.15 |
| SF77 / SA77 / SAF77 | 3.0 | 4 | 25 | 880 | 56.92 | 12100 | 1.10 |
| SF77 / SA77 / SAF77 | 4.0 | 4 | 33 | 1020 | 43.33 | 9370 | 1.10 |
| SF77 / SA77 / SAF77 | 4.0 | 4 | 29 | 1150 | 49.38 | 9320 | 0.95 |
| SF77 / SA77 / SAF77 | 4.0 | 4 | 26 | 1250 | 53.87 | 9250 | 0.90 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 177 | 275 | 8.06 | 6280 | 2.5 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 151 | 325 | 9.44 | 6390 | 2.2 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 134 | 365 | 10.65 | 6450 | 2.0 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 118 | 410 | 12.07 | 6500 | 1.75 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 104 | 470 | 13.76 | 6510 | 1.50 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 94 | 520 | 15.28 | 6490 | 1.35 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 82 | 590 | 17.45 | 6170 | 1.20 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 78 | 625 | 18.42 | 5920 | 1.15 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 57 | 820 | 25.07 | 7940 | 1.25 |
| S77 / SF77 / SA77 / SAF77 | 5.5 | 4 | 50 | 920 | 28.41 | 7920 | 1.15 |
| S77 / SF77 / SA77 / SAF77 | 7.5 | 4 | 177 | 380 | 8.06 | 5580 | 1.80 |
| S77 / SF77 / SA77 / SAF77 | 7.5 | 4 | 151 | 440 | 9.44 | 5540 | 1.65 |
| S77 / SF77 / SA77 / SAF77 | 7.5 | 4 | 118 | 560 | 12.07 | 4570 | 1.30 |
| S77 / SF77 / SA77 / SAF77 | 7.5 | 4 | 104 | 640 | 13.76 | 3890 | 1.10 |
| S77 / SF77 / SA77 / SAF77 | 7.5 | 4 | 94 | 705 | 15.28 | 3250 | 1.00 |
| S77 / SF77 / SA77 / SAF77 | 7.5 | 4 | 82 | 810 | 17.45 | 2290 | 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 87: torque 545–2300 N·m; standard and combined selections
Frame 87 envelope
| Confirmed catalogue envelope | Value |
|---|---|
| Variants observed | S, SA, SAF, SF |
| Output torque | 545–2300 N·m |
| Ratio envelope | 7.88–288 |
| Motor power | 0.37–15.0 kW |
| Output speed | 2.4–185.0 r/min |
| Weight | 76.0–101.0 kg |
Source: HaoRan RSKF catalogue 2024, p. 91–98.
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 |
|---|---|---|---|---|---|---|---|
| S87 / SF87 / SA87 / SAF87 | 0.37 | 8 | 3.1 | 775 | 222.40 | 29900 | 3.2 |
| S87 / SF87 / SA87 / SAF87 | 0.37 | 8 | 2.6 | 890 | 258.18 | 29800 | 2.8 |
| S87 / SF87 / SA87 / SAF87 | 0.37 | 8 | 2.4 | 980 | 288.00 | 29700 | 2.5 |
| S87 / SF87 / SA87 / SAF87 | 0.55 | 8 | 3.1 | 1150 | 222.40 | 29600 | 2.1 |
| S87 / SF87 / SA87 / SAF87 | 0.55 | 8 | 2.4 | 1450 | 288.00 | 29200 | 1.70 |
| SF87 / SA87 / SAF87 | 0.75 | 6 | 4.4 | 1120 | 202.96 | 29600 | 2.1 |
| S87 / SF87 / SA87 / SAF87 | 0.75 | 4 | 6.2 | 830 | 222.40 | 29800 | 8 |
| SF87 / SA87 / SAF87 | 0.75 | 6 | 4.1 | 1220 | 222.40 | 29500 | 1.95 |
| S87 / SF87 / SA87 / SAF87 | 0.75 | 4 | 5.3 | 950 | 258.18 | 29700 | 2.4 |
| SF87 / SA87 / SAF87 | 0.75 | 6 | 3.5 | 1400 | 258.18 | 29300 | 1.75 |
| S87 / SF87 / SA87 / SAF87 | 0.75 | 4 | 4.8 | 1050 | 288.00 | 29600 | 2.2 |
| SF87 / SA87 / SAF87 | 0.75 | 6 | 3.1 | 1540 | 288.00 | 29100 | 1.60 |
| SF87 / SA87 / SAF87 | 1.1 | 4 | 9.2 | 840 | 151.30 | 29800 | 2.5 |
| SF87 / SA87 / SAF87 | 1.1 | 4 | 7.8 | 990 | 180.00 | 29700 | 2.2 |
| SF87 / SA87 / SAF87 | 1.1 | 4 | 6.9 | 1100 | 202.96 | 29600 | 2.0 |
| SF87 / SA87 / SAF87 | 1.1 | 4 | 5.4 | 1370 | 258.18 | 29300 | 1.65 |
| SF87 / SA87 / SAF87 | 1.1 | 4 | 4.9 | 1520 | 288.00 | 29100 | 1.50 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 40 | 640 | 34.96 | 29900 | 2.5 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 36 | 715 | 39.10 | 29900 | 2.2 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 32 | 800 | 44.03 | 29800 | 2.0 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 29 | 870 | 47.91 | 29800 | 1.85 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 25 | 1030 | 57.00 | 29700 | 1.55 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 22 | 1160 | 64.27 | 29500 | 1.40 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 20 | 1260 | 70.43 | 29400 | 1.25 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 18 | 1230 | 77.14 | 29500 | 1.50 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 17 | 1460 | 81.76 | 29200 | 1.10 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 16 | 1360 | 86.15 | 29300 | 1.40 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 14 | 1550 | 99.26 | 29100 | 1.25 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 13 | 1720 | 110.40 | 28900 | 1.15 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 11 | 1900 | 123.48 | 28600 | 1.10 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 10 | 2130 | 139.05 | 28200 | 1.00 |
| S87 / SF87 / SA87 / SAF87 | 3.0 | 4 | 9.2 | 2300 | 151.30 | 27900 | 0.95 |
| SF87 / SA87 / SAF87 | 5.5 | 4 | 30 | 1560 | 47.91 | 29100 | 1.00 |
| SF87 / SA87 / SAF87 | 5.5 | 4 | 25 | 1850 | 57.00 | 28700 | 0.85 |
| SF87 / SA87 / SAF87 | 5.5 | 4 | 22 | 1850 | 64.00 | 28700 | 0.90 |
| S87 / SF87 / SA87 / SAF87 | 11.0 | 4 | 183 | 545 | 7.88 | 18100 | 1.85 |
| S87 / SF87 / SA87 / SAF87 | 11.0 | 4 | 159 | 625 | 9.07 | 18600 | 1.85 |
| S87 / SF87 / SA87 / SAF87 | 11.0 | 4 | 132 | 750 | 10.93 | 19100 | 1.65 |
| S87 / SF87 / SA87 / SAF87 | 11.0 | 4 | 118 | 840 | 12.21 | 19400 | 1.50 |
| S87 / SF87 / SA87 / SAF87 | 11.0 | 4 | 102 | 960 | 14.06 | 19800 | 1.30 |
| S87 / SF87 / SA87 / SAF87 | 11.0 | 4 | 92 | 1070 | 15.64 | 20000 | 1.15 |
| S87 / SF87 / SA87 / SAF87 | 11.0 | 4 | 82 | 1190 | 17.49 | 20200 | 1.05 |
| S87 / SF87 / SA87 / SAF87 | 15.0 | 4 | 185 | 730 | 7.88 | 17000 | 1.40 |
| S87 / SF87 / SA87 / SAF87 | 15.0 | 4 | 161 | 840 | 9.07 | 17300 | 1.35 |
| S87 / SF87 / SA87 / SAF87 | 15.0 | 4 | 134 | 1010 | 10.93 | 17600 | 1.25 |
| S87 / SF87 / SA87 / SAF87 | 15.0 | 4 | 120 | 1120 | 12.21 | 17800 | 1.10 |
| S87 / SF87 / SA87 / SAF87 | 15.0 | 4 | 104 | 1290 | 14.06 | 17900 | 0.95 |
| S87 / SF87 / SA87 / SAF87 | 15.0 | 4 | 93 | 1430 | 15.64 | 17900 | 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 97: torque 1300–4550 N·m; standard and combined selections
Frame 97 envelope
| Confirmed catalogue envelope | Value |
|---|---|
| Variants observed | S, SA, SAF, SF |
| Output torque | 1300–4550 N·m |
| Ratio envelope | 9.55–286 |
| Motor power | 0.75–22.0 kW |
| Output speed | 2.4–153.0 r/min |
| Weight | 135.0–171.0 kg |
Source: HaoRan RSKF catalogue 2024, p. 93–98.
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 |
|---|---|---|---|---|---|---|---|
| SF97 / SA97 / SAF97 | 0.75 | 8 | 3.0 | 1690 | 231.67 | 36400 | 2.5 |
| SF97 / SA97 / SAF97 | 0.75 | 8 | 2.4 | 2040 | 286.40 | 36100 | 2.1 |
| SF97 / SA97 / SAF97 | 1.1 | 8 | 3.5 | 2160 | 196.52 | 36000 | 1.95 |
| S97 / SF97 / SA97 / SAF97 | 1.1 | 6 | 4.0 | 1900 | 231.67 | 36300 | 2.2 |
| SF97 / SA97 / SAF97 | 1.1 | 8 | 2.9 | 2500 | 231.67 | 35600 | 1.70 |
| S97 / SF97 / SA97 / SAF97 | 1.1 | 6 | 3.5 | 2130 | 262.22 | 36000 | 1.95 |
| SF97 / SA97 / SAF97 | 1.1 | 8 | 2.6 | 2800 | 262.22 | 35200 | 1.50 |
| S97 / SF97 / SA97 / SAF97 | 1.1 | 6 | 3.2 | 2310 | 286.40 | 35900 | 1.80 |
| SF97 / SA97 / SAF97 | 1.1 | 8 | 2.4 | 3030 | 286.40 | 34900 | 1.40 |
| S97 / SF97 / SA97 / SAF97 | 1.5 | 4 | 4.9 | 2130 | 286.40 | 36000 | 1.90 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 17 | 1470 | 80.85 | 36600 | 2.2 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 16 | 1450 | 89.60 | 36600 | 2.2 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 13 | 1700 | 105.71 | 36400 | 2.0 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 12 | 1870 | 116.92 | 36300 | 1.90 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 11 | 2090 | 131.85 | 36100 | 1.75 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 9.6 | 2300 | 145.60 | 35900 | 1.65 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 8.7 | 2530 | 161.74 | 35600 | 1.50 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 7.7 | 2810 | 180.95 | 35200 | 1.40 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 7.1 | 3040 | 196.52 | 34900 | 1.30 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 6.0 | 3530 | 231.67 | 34100 | 1.15 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 5.3 | 3960 | 262.22 | 33300 | 1.00 |
| S97 / SF97 / SA97 / SAF97 | 2.2 | 4 | 4.9 | 4290 | 286.40 | 32600 | 0.95 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 25 | 1350 | 55.79 | 36700 | 2.4 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 23 | 1470 | 60.59 | 36600 | 2.2 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 20 | 1720 | 71.43 | 36400 | 1.90 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 18 | 1940 | 80.85 | 36200 | 1.65 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 16 | 1910 | 89.60 | 36300 | 1.70 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 13 | 2230 | 105.71 | 35900 | 1.55 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 12 | 2460 | 116.92 | 35700 | 1.45 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 11 | 2750 | 131.85 | 35300 | 1.35 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 9.8 | 3020 | 145.60 | 34900 | 1.25 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 7.8 | 3700 | 180.95 | 33800 | 1.05 |
| S97 / SF97 / SA97 / SAF97 | 4.0 | 4 | 7.2 | 3990 | 196.52 | 33200 | 1.00 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 32 | 1500 | 44.89 | 36600 | 2 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 29 | 1660 | 49.87 | 36500 | 2.0 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 24 | 2000 | 60.59 | 36200 | 65 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 22 | 1930 | 65.45 | 36200 | 1.50 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 20 | 2350 | 71.43 | 35800 | 1.40 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 14 | 3050 | 105.71 | 34900 | 15 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 12 | 3360 | 116.92 | 34400 | 1.05 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 11 | 3760 | 131.85 | 33700 | 0.95 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 9.8 | 4130 | 145.60 | 32900 | 0.90 |
| S97 / SF97 / SA97 / SAF97 | 5.5 | 4 | 8.8 | 4550 | 161.74 | 29900 | 0.85 |
| SF97 / SA97 / SAF97 | 9.2 | 4 | 26 | 3070 | 55.79 | 34800 | 1.05 |
| SF97 / SA97 / SAF97 | 9.2 | 4 | 22 | 3210 | 65.45 | 34600 | 0.90 |
| SF97 / SA97 / SAF97 | 9.2 | 4 | 18 | 3810 | 78.26 | 33600 | 0.80 |
| SF97 / SA97 / SAF97 | 15.0 | 4 | 41 | 3230 | 36.05 | 31000 | 1.00 |
| SF97 / SA97 / SAF97 | 15.0 | 4 | 36 | 3630 | 40.65 | 31300 | 0.90 |
| SF97 / SA97 / SAF97 | 15.0 | 4 | 33 | 4000 | 44.89 | 31400 | 0.85 |
| S97 / SF97 / SA97 / SAF97 | 22 | 4 | 153 | 1300 | 9.55 | 21700 | 1.55 |
| S97 / SF97 / SA97 / SAF97 | 22 | 4 | 128 | 1560 | 11.41 | 22100 | 1.40 |
| S97 / SF97 / SA97 / SAF97 | 22 | 4 | 112 | 1780 | 13.07 | 22300 | 1.30 |
| S97 / SF97 / SA97 / SAF97 | 22 | 4 | 95 | 2090 | 15.42 | 22400 | 1.20 |
| S97 / SF97 / SA97 / SAF97 | 22 | 4 | 86 | 2310 | 17.05 | 22300 | 1.10 |
| S97 / SF97 / SA97 / SAF97 | 22 | 4 | 76 | 2600 | 19.23 | 21800 | 1.00 |
| S97 / SF97 / SA97 / SAF97 | 22 | 4 | 69 | 2870 | 21.23 | 19800 | 0.90 |
| S97 / SF97 / SA97 / SAF97 | 22 | 4 | 61 | 3180 | 24.13 | 26500 | 0.90 |
| S97 / SF97 / SA97 / SAF97 | 22 | 4 | 53 | 3630 | 27.63 | 26600 | 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.
How the data should be used
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.
Request a frame and mounting review
Request a frame and mounting review
Send your nameplate and include the frame designation, driven equipment, operating condition and available mounting information. HaoRan Transmission will confirm the required mounting dimensions before you order.
R, F, K or S: start with shaft layout
R, F, K or S: start with shaft layout
| 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.
Inside the workshop
A view of the workshop. Product configuration is reviewed against your machine and application.
READY FOR A TECHNICAL REVIEW?
Send your nameplate, get a mounting review within one business day.
Or message us directly