Motorized Torque-Arm

Shaft-Mount Gear Reducer

The most reliable direct-drive solution that is engineered to outperform and outlast the competition

Motorized Torque-Arm (MTA) is the rugged, direct-drive solution that provides best-in-class power and performance in a compact, AGMA-rated design.

Packed full of industry-leading features, like its twin-tapered bushing system, MTA is easy to mount and dismount with heavy-duty construction for reliability that lasts for less required maintenance—maximizing uptime and lowering your total cost of ownership.

MTA is available with multiple input options that fit a variety of motor styles and sizes to be the go-to solution for your operation’s critical applications.

Key features and benefits

Patented twin-tapered bushing system for easy installation and guaranteed gearbox removal
Power-dense, AGMA-rated design
Extreme pressure lubricant-compatible backstop for premier performance and reliability
Available in standard and short-shaft systems, both guaranteeing maximum torque transmission
Rugged and case-carburized helical bevel gearing
Harsh-duty sealing system for premier protection in a wide operating temperature range of -40 °F to 300 °F (-40 °C to 150 °C)

Options for flanged motors

Assemblies with an enclosed input adapter or safety input adapter that are compatible with IEC and NEMA flanged motors.

Available for reducer sizes 2 through 12
Support for drive packages up to 100 hp (75 kW)
Enclosed input adapter features a three-piece jaw coupling and enables pairing with NEMA C-face motors in frame sizes 56 to 140T and IEC flanged motors in frame sizes IEC 90 to 250
Safety input adapter features a removable cover to allow for coupling access for streamlined maintenance without requiring the removal of the motor and enables pairing with NEMA C-face motors in frame sizes 180T to 405T

Options for foot-mount motors motors

Assemblies packages with a patent-pending Atlas Adapter for support of large-frame foot-mounted motors.

Available for reducer sizes 7 through 12
Support for drive packages up to 200 hp (150 kW)
Atlas Adapter enables pairing with foot-mount motors in frame sizes 364T to 447T
Features heavy-duty Raptor coupling for enhanced performance and reliability
Fan options for significant improvement to thermal
capacity, extending oil and product life
Tie rod and torque arm assemblies included
Assembly options with a motor are available