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Helical Variable Speed Gear Motors
Baldor Industrial Motors Inc Helical Variable Speed Gear Motors are built for robust performance, minimal maintenance, and extended service life. Featuring hardened and ground gears paired with steel-on-steel friction discs, these motors deliver quiet, reliable operation across a wide range of industrial processes. With a graduated 1:10 speed control range — adjustable both at standstill and during operation — they offer exceptional flexibility, including suitability for corrosive environments.
Key Features & Benefits
- Robust and durable construction engineered for long service life
- Hardened and ground gears for wear-resistant, dependable operation
- IEC standard sizes for straightforward system integration
- Quiet operation enabled by steel-on-steel friction discs
- Adjustable 1:10 speed control range, operable at standstill or during running conditions
- Protective coatings designed for corrosive or harsh environments
- Low maintenance design built on proven, reliable technology
- Maximum ingress protection up to IP66
| Feature | Specification |
|---|---|
| Gear Ratio | 7.5:1 – 300:1 |
| Speed Range | 1:10 |
| Output Speed (rpm) | 0.01 – 0.1 to 250 – 2,500 |
| Nominal Torque (Nm) | 0.4 – 2,590 |
| Max Torque (Nm) | 2,590 |
| Motor Type | 3-phase IEC AC motor |
| Power Range | 0.09 – 1.5 kW |
| Voltage / Frequency | 230/400V – 50Hz, 400/690V – 50Hz |
| Efficiency Class | IE3 (≥0.75 kW – 2 / 4 / 6 poles) |
| Protection Class | Standard IP55, up to IP66 |
| Insulation Class | F |
| Material | Cast Iron |
| Lubrication | ISO VG068 mineral oil |
| Lifetime (L10h) | > 15,000 hours |
| Certificates | CE, UL/CSA, ATEX |
Optional Features
Remote speed indicator (digital or analogue)
Electrical remote adjustment
Remote adjustment with flexible shaft
PTC thermistor
Bimetal temperature switch
Brake motors
Pole-changing motors
ATEX motors
DC motors
Special voltage/frequency
Increased protection
Reinforced output shaft bearing
Stainless steel output shaft
Forced ventilation
Variations & Mounting Options
IEC Motor Sizes: IEC 56 – 80
Mounting: Foot-mounted, Flange-mounted
Output Shaft Diameter: 12 – 75 mm
Coating / Color: According to ISO 12944, standard RAL7031