The main types
| Type | Shaft arrangement | Efficiency | Typical uses |
|---|---|---|---|
| Helical (inline) | Output in line with motor | High | Conveyors, pumps, general drives |
| Parallel-shaft helical | Output parallel to motor, compact length | High | Conveyors, travelling drives, hollow-shaft mounting |
| Helical-bevel | Right angle | High | Right-angle drives where efficiency matters |
| Worm | Right angle | Lower, falls at high ratios | Compact, quieter, lower power drives |
Efficiency matters for running cost
Helical and bevel gears transmit power with little loss. Worm gears slide rather than roll, so more energy turns into heat, especially at high ratios. For drives that run many hours a day, a helical or helical-bevel gearbox often saves energy compared with a worm gearbox of similar output — combined with an efficient IE3 or IE4 motor, the saving can be significant over the drive's life.
Sizing a geared motor
- Output speed and torque required by the machine.
- Service factor for load type, shocks, starts per hour and operating hours.
- Mounting: foot, flange or hollow shaft with torque arm.
- Environment: dust, washdown, ambient temperature and enclosure protection.
- Brake and drive: motor brake, variable-frequency drive or soft starter if needed.
Exciter gearboxes for vibrating screens
Vibrating screens in mining, cement and aggregates use exciter gearboxes that generate the screen's vibration. They run continuously under heavy load, so robust bearings, lubrication and regular maintenance are essential.
C-adapter gearboxes
A gearbox with a motor adapter (IEC or NEMA C-face) accepts a standard motor, which can simplify spares and replacement.
Frequently asked questions
Can I replace an old worm gearbox with a helical-bevel unit?
Often yes, if output speed, torque, shaft and mounting dimensions are matched. Send us the nameplate and machine details.
Browse IC Bauer products at EECG
EECG is an authorised channel partner for IC Bauer in Central India, with supply, installation and service support from our Raipur team.
IC Bauer range → Search our catalogue for “geared motor” →Need help selecting the right product for your process conditions? Share your duty and our engineers will recommend a model and send a quotation.
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