Our Keystone line includes catalog gearboxes in right angle and parallel shaft configurations with output torque ratings from 11,000 to 11 million in-pounds. The shafts can be horizontal or vertical, and the units can be wall mounted or standard foot mounted.
Keystone Reducer Key Features:
- Carburized and ground AGMA quality Q12 gearing for quiet operation and increased torque capacity
- ISO dimensioned bearings and seals for economy and increased availability
- Dual lip seal capable
- Heat treated alloy steel shafting to minimize deflection
- Inch series hardware
- Standard splash lubrication with optional pressure lubrication for increased thermal capacity
- Right angle or Parallel shaft configurations
Standard Accessories:
- One or two cooling fans
- Oil pump and cooler
- Backstop
- Base Plate
- Motor bracket, mount or "C" face adapter
- Coupling guard
When your design requires a special reducer, let our engineers take a look. They’ve been serving our customers in the metals processing, primary metals, oil exploration and recovery, wind energy, power plants, transportation and mining industries for years.

