CHM horizontal single axis reducer input flange size (motor interface)
CHM horizontal single axis reducer input flange size (motor interface)
H2: Electrical Gear Motor/Gear Motor Single Input Shaft Hole - Standard Size
| Motor Power | Input Bore Dia. (mm) | Keyway Width W1 (mm) | Keyway Depth T1 (mm) |
| 100W (1/8HP) | Φ11 | 4 | 12.8 |
| 200W (1/4HP) | Φ11 | 4 | 12.8 |
| 400W (1/2HP) | Φ14 | 5 | 16.3 |
| 750W (1HP) | Φ19 | 6 | 21.8 |
| 1500W (2HP) | Φ24 | 8 | 27.3 |
| 2200W (3HP) | Φ28 | 8 | 31.3 |
| 3700W (5HP) | Φ28 | 8 | 31.3 |
H3: IEC Flange Standards
| Power | Flange Type | Pilot Diameter | Bolt Hole Circle |
|---|---|---|---|
| 100W – 200W | B14 (small flange) | 50mm | 80mm |
| 400W – 750W | B5 (large flange) | 110mm | 130mm |
| 1500W – 3700W | B5 (large flange) | 130mm | 165mm |
Selection note: When ordering, specify both the required IEC flange standard (B5 or B14) and the motor shaft diameter to ensure correct fit.
H2: Key Features & Advantages
| Feature | Benefit |
|---|---|
| Flange input design | Accepts any standard IEC motor – three-phase, single-phase, brake, or inverter-duty |
| Self-provided motor flexibility | Users can reuse existing motors or select specialized motors for specific applications |
| Single solid output shaft | Simple coupling to driven equipment – no shaft alignment complications |
| Hardened helical gearing | Quiet operation, high efficiency (≥92%), long service life |
| Aluminum/cast iron housing | Lightweight (aluminum) or high-rigidity (cast iron) depending on frame size |
| Sealed-for-life lubrication | No routine oil changes – maintenance-free operation |
| Multiple mounting options | Foot-mounted design fits standard industrial installations |
| IP54 protection | Dust-proof and splash-proof (gearbox) |
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