Industrial Helical Gear Motor GM-300
Heavy-duty helical gear motors for OEM equipment

The GM-300 series is our best-selling helical gear motor family for OEM equipment builders. It combines compact dimensions with the reliability required for 24/7 industrial duty.
Design highlights
- High efficiency gearing — hardened and ground helical gears reduce energy loss and noise.
- Long service life — cast iron housing, oversized bearings, and IP55/IP65 protection.
- Drop-in compatibility — standard IEC and NEMA mounting options.
OEM customization
Every OEM order can be adapted: custom voltage (including 60 Hz and 415 V markets), special shaft extensions, paint color, nameplate branding, and export packaging with wooden crates.
Specifications
| Output power | 0.12 - 22 kW |
|---|---|
| Output torque | 3 - 4000 N·m |
| Gear ratio | 3.5:1 - 1200:1 |
| Protection class | IP55 / IP65 |
| Mounting | Foot, flange or combined |
| Ambient temperature | -20 °C to +40 °C |
Key features
- Helical gears ground for low noise and high efficiency
- Grease-sealed for life, maintenance-free options
- Custom voltage, shaft and flange on request
- Available with brake, encoder or explosion-proof motor
Applications
- Conveyors
- Mixers
- Packaging lines
- Pumps
Materials & construction
- Cast iron housing
- 20CrMnTi hardened gears
- IP55 protection
Frequently Asked Questions
What is the MOQ for the GM-300 series?+
The MOQ is 10 units for standard ratios. Custom specifications are quoted based on your volume.
Can you match an existing competitor's dimensions?+
Yes. We routinely build to competitor-compatible flange and shaft dimensions so you can drop in without redesign.
What certificates are available?+
CE, RoHS and ISO 9001 are standard. Additional tests such as TUV or SGS inspection can be arranged.
Technical resources
How to Choose an OEM Manufacturing Partner: 7 Questions to Ask
Seven practical questions to qualify an OEM factory before you place a first order — quality, pricing, communication and scale.
Get a quote for Industrial Helical Gear Motor GM-300
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