100W (1/8HP) Gear Motor Dimensions – CH18 / CV18 Series Horizontal & Vertical Mounting Drawing
100W (1/8HP) Gear Motor Dimensions – CH18 / CV18 Series Horizontal & Vertical Mounting Drawing
The CH18 (horizontal) and CV18 (vertical) series are 100W (1/8HP) helical gear motors, available in both foot-mounted and flange-mounted configurations. Both mounting variants are shown on a single combined installation drawing for easy comparison. This guide provides complete model codes, technical specifications, and key mounting dimensions.

H2: Model Code Breakdown
Horizontal example: CH18-100-30-S | Vertical example: CV18-100-30-S
| Segment | Value | Meaning |
|---|---|---|
| CH / CV | CH / CV | CH = Horizontal (foot), CV = Vertical (flange) |
| 18 | 18 | Output shaft diameter: 18mm |
| 100 | 100 | Motor power: 100W (1/8HP) |
| 30 | 30 | Reduction ratio: 1:30 |
| -S | S | 3-phase 220V/380V, 50/60Hz |
| Parameter | Value |
|---|---|
| Rated Power | 100W (1/8HP) |
| Output Shaft Diameter | 18mm |
| Reduction Ratios | 3 : 1 to 1800 : 1 |
| Housing Material | Aluminum alloy (ADC-12) |
| Gear Type | Hardened helical gears |
| Insulation Class | Class F |
| Protection Class | IP54 |
| Voltage | 3-phase 220V/380V, 50/60Hz |
| Dimension | Value (mm) |
|---|---|
| Shaft Diameter (P) | 18 |
| Shaft Length (Q) | 30 |
| Keyway Width (W) | 5 |
| Key Size | 5 × 5 × 27 |
Request the Complete Installation Drawing – Contact our engineering team with your required ratio and voltage. We will send you the combined CH/CV dimension sheet within 24 hours.

