Cone Drive Gear Reducers
Worm Gear Reducers from Cone Drive set the industry standard for dependability. With innovative technologies such as Conex Helicoidal and true double-enveloping geometries, Cone Drive worm gear speed reducers can not be beat for compactness and shock load.
Cone Drive double-enveloping worm gearing employs a specially machined worm that conforms to the arc of the driven gear. This design increases torque throughput, improves accuracy and extends operating life. Learn More >
Worm Gear Drives
- Ouput Torque up to 500,000 lb-in (56,500 Nm)
- Gear Ratios up to 343,000:1 in triple reduction (special ratios available)
- Double-enveloping gear geometry for up to 600% more contact at the gear mesh (See Figures 1-3 below)
- Improved load distribution
- Greater precision and lower backlash
- Improved torque throughput allowing size and weight savings (See Figure 4 below)
- Multiple input and output shaft options
- DuoDrive model available; one worm to turn to two gears simultaneously in opposite rotations
Servo Drives
- Output torque up to 8,500 lb-in
- Gear ratios from 5:1 to 60:1
- Motor adapters to fit servo motors
- Solid shaft, keyed hollow shaft, or shrink disk hollow shaft output
- Factory lubricated with synthetic oil and sealed for maintenance free operation in any mounting position
- “WhisperDrive” Series W also features:
- Special gear ratios available
- Standard, low, or ZERO backlash
- IP 65 rating
Inline Planetary Gear Servo Drives
High precision Series P line for the most demanding automation applications:
- Precision honed planetary gearing offers high torque capacity and high efficiency
- Output torque up to 15,900 lb-in (1800 Nm)
- Exact ratios from 3:1 through 40:1 (Up to 100:1 in two stages)
- Lowest noise levels in the industry, as low as 58dB(A)
- High precision with backlash less than 3 arc minutes
- Permanently lubricated with synthetic grease at the factory, lifetime-sealed housing with IP65 protection
- 20,000 hour life rating, accepts input speeds up to 10,000 rpm
- Patented clamping arrangement provides error free motor mounting
- Input fits any servo motor; solid, keyless output shaft
Series E line for economical drive solutions in general automation:
- Planet gear honed for maximum durability and low noise
- Output torque up to 7,080 lb-in (800 Nm)
- Gear ratios from 3:1 in single stage to 512:1 in three stages
- Full needle planet bearings; 20,000 hours life
- Patented clamping system for easy, error free motor mounting
- Sealed bearings for IP54 (55) protection
- Accepts any servo, stepper or NEMA frame motor input
- Solid keyed output shaft with B14 C flange, metric D flange, or NEMA D flange
Helical Gear Servo Drives
- Two piece motor adapter design mounts to any servomotor
- Adapter with dual bearing design eliminates external loading on motor bearings
- Zero backlash flexible coupling arrangement eliminates misalignment problems.
- Dimensionally interchangeable with other manufacturers
- Multiple mounting options for complete design flexibility
- Series M3 inline drive:
- Output torque up to 15,000 lb-in (1,700 Nm)
- Gear ratios up to 225:1 in three stages
- Solid shaft or flanged output
- Series K3 right angle drive:
- Output torque up to 23,700 lb-in (2,680 Nm)
- Gear ratios up to 125:1 in three stages
- Solid shaft, keyed hollow shaft, shrink disk, or flanged output
R.M. Hoffman Company Custom Applications:
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| Brake Assembly, Precision Gearbox and Spring Set, 2 Designs | Philips SKYlight Nuclear Camera |
Double Enveloping Worm Gear Technology
Double-enveloping geometry allows for much more contact at the worm gear interface than cylindrical designs.

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Improved torque throughput allows a smaller reducer to produce the same amount of torque.


















