Two Stage Cycloidal Drive
Single-stage vs Two-stage Cycloidal Drive
1. Structural Difference
Series connection: 1st gear reduction + 2nd cycloidal reduction. Total ratio = ratio1 × ratio2, ranging from 100 up to 7500+.
2. Comparison Chart
| Items | Single Stage | Two Stage |
|---|---|---|
| Reduction Ratio | 6~87 | 100~7500+ |
| Size | Shorter length | Slightly longer |
| Vibration & Noise | Higher | Much lower |
| Backlash | Tiny | Near zero |
| Output Torque | Medium | 30%~50% higher |
| Shock Load Capacity | Standard | Excellent (2~3× rated torque) |
3. Advantages of Two-stage Type
Achieve ultra-high reduction ratio in compact construction, unavailable with single stage.
Pre-stage reduces input speed, cycloid runs slowly for low vibration and low inertia, suitable for frequent servo start-stop.
Near-zero backlash and high torsional rigidity for high-precision positioning.
Multi-tooth meshing brings large torque and strong anti-overload performance against sudden impact.
Less abrasion, longer service life and lower maintenance cost.
4. Application
Single-stage: Conveyors, small mixers, general lifting machines
Two-stage: Robot joints, precision positioning platforms, semiconductor equipment, heavy-duty AGV








| Product Name | XB Series Industrial Cycloidal Pin-wheel gear motor | |
Specifications (Model) |
X series, Single | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 |
| B series, Single | 0, 1, 2, 3, 4, 5, 6, 7, 8 | |
| X series, Double | 42, 53, 63, 74, 84, 85, 95, 106, 116, 117 | |
| B series, Double | 20, 31, 41, 52, 53, 63, 74, 84, 85 | |
| X series, Triple | 642, 742, 842, 852, 853, 952, 953, 1063, 1164, 1174 | |
| B series, Triple | 420, 520, 530, 531, 630, 631, 741, 842 | |
Ratio |
Single | 6, 7, 9, 11, 17, 23, 25, 29, 35, 43, 59, 71, 87 |
| Double | 121, 187, 289, 391, 473, 493, 595, 731, 841, 1003, 1225, 1505, 1849, 2065, 2537, 3481, 5133 | |
| Triple | 2055~658603 | |












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