CH series horizontal gear motor - shaft diameter, transmission ratio, and rated power
CH Series Horizontal Gear Motor – Complete Model Codes, Shaft Diameters, Ratios & Power Ratings
The CH series is a horizontal (foot-mounted) helical geared motor designed for industrial applications requiring reliable torque transmission in a compact, cost-effective package. This guide provides a complete reference for standard models, output shaft diameters, reduction ratios, and matching motor power – everything you need to specify the right unit.
Series Overview
| Feature | Details |
|---|---|
| Mounting | Horizontal (foot-mounted) |
| Motor | Integrated, 3-phase or 1-phase |
| Power Range | 0.1 kW – 3.7 kW (100W – 3700W) |
| Shaft Diameters | 18, 22, 28, 32, 40, 50 mm |
| Reduction Ratios | 3 : 1 to 1800 : 1 |
| Output Torque | Up to 1500 N.m |
| Housing | Aluminum alloy (shaft 18–28) / Cast iron (shaft 32–50) |
| Protection | IP54 (standard), IP55 optional |
Additional variants:
CHM – Flange input (self-provided motor)
CHD – Double output shaft
Standard Models by Shaft Diameter
| Shaft Code | Shaft Diameter (mm) | Housing Material | Typical Power Range |
|---|---|---|---|
| CH18 | 18 | Aluminum | 0.1 – 0.2 kW |
| CH22 | 22 | Aluminum | 0.1 – 0.4 kW |
| CH28 | 28 | Aluminum | 0.2 – 0.75 kW |
| CH32 | 32 | Cast iron | 0.4 – 1.5 kW |
| CH40 | 40 | Cast iron | 0.75 – 3.7 kW |
| CH50 | 50 | Cast iron | 1.5 – 3.7 kW |
| Power | Common Ratios (for CH28–CH40) |
|---|---|
| 0.1 kW | 10, 15, 20, 30, 40, 50, 60 |
| 0.2 kW | 15, 20, 25, 30, 40, 50, 80 |
| 0.4 kW | 10, 15, 20, 30, 40, 50, 90 |
| 0.75 kW | 15, 20, 30, 40, 60, 80, 100 |
| 1.5 kW | 10, 15, 20, 30, 40, 60 |
| 2.2 kW | 15, 20, 30, 40, 50 |
| 3.7 kW | 10, 20, 30, 40 |
Request a Quote or Full Dimension Sheet – Tell us your required power, ratio, and shaft size, and we’ll respond within 24 hours with a tailored proposal.