GH Vertical/Horizontal Small Gear Motor Rated Power and Shaft Diameter Parameter Table
Example – Selecting a 400W Gear Motor:
Motor power: 0.4 kW
Motor speed: 1400 RPM
Motor torque = 9550 × 0.4 ÷ 1400 ≈ 2.7 N.m
With 30:1 ratio and 92% efficiency:
Output torque ≈ 2.7 × 30 × 0.92 ≈ 74.5 N.m
Then compare this value against the manufacturer’s output torque table for the specific model
Torque Margin Recommendations:
| Duty Type | Recommended Safety Margin |
| Smooth, steady operation (conveyors, fans, mixers) | No extra margin needed – rated torque ≥ required torque |
| Frequent start/stop (index tables, lifts, palletizers) | 1.2 – 1.5× safety margin |
| Shock loads (crushers, punch presses) | 1.5× or higher safety margi |
CH/CV/GH/GV Series – Power & Shaft Diameter Matrix:
| Power | Shaft Dia | CH (Horizontal) | CV (Vertical) | GH (Horizontal HD) | GV (Vertical HD) |
| 100W | 18mm | CH18 | CV18 | GH18 | GV18 |
| 200W | 22mm | CH22 | CV22 | GH22 | GV22 |
| 400W | 28mm | CH28 | CV28 | GH28 | GV28 |
| 750W | 28mm | CH28 | CV28 | GH28 | GV28 |
| 1500W | 32mm | CH32 | CV32 | GH32 | GV32 |
| 2200W | 40mm | CH40 | CV40 | GH40 | GV40 |
| 3700W | 50mm | CH50 | CV50 | GH50 | GV50 |
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