As industries continue to push for higher reliability, reduced maintenance, and increased power density, shaft-mounted gear reducers remain a critical element in countless material-handling and bulk-processing operations. The latest generation Motorized Torque-Arm (MTA) solution brings a new level of engineering refinement to this category, combining rugged construction, simplified servicing, and multiple configuration options in a compact, AGMA-rated package.
Designed as a direct-drive system built to outperform conventional shaft-mounted reducers, the MTA delivers both durability and ease of use. Its hallmark feature, the patented twin-tapered bushing system, allows for quick installation and confident removal, even in demanding environments. This translates directly into reduced downtime, lower maintenance burdens, and overall improvements in total cost of ownership.
Beyond its mechanical robustness, the MTA platform supports a broad range of motor styles, input configurations, and mounting requirements, making it an adaptable solution for facilities where flexibility and uptime are paramount.
Engineering Features That Drive Operational Reliability
The MTA incorporates a suite of advanced design elements that enhance performance across a wide range of duty conditions:
- Twin-tapered bushing technology ensures secure mounting, easy disassembly, and consistent torque transmission.
- Power-dense, AGMA-rated gearbox design engineered to handle demanding loads.
- Rugged, case-carburized helical-bevel gearing for long service life.
- Harsh-duty sealing system capable of operating reliably between –40 °F and 300 °F (–40 °C to 150 °C).
- Extreme-pressure lubricant-compatible backstop to enhance performance and reliability in critical applications.
- Available in standard and short-shaft configurations, both optimized for maximum torque transfer.
Flexible Input Options for IEC and NEMA Motors
To simplify integration, the MTA is offered with multiple input assemblies tailored to a wide range of motor types:
Enclosed Input Adapter
- Supports reducer sizes 2–12
- Compatible with NEMA C-face motors (frame sizes 56–140T) and IEC motors (frame sizes 90–250)
- Incorporates a three-piece jaw coupling for smooth power transmission
- Rated for drive packages up to 100 hp (75 kW)
Safety Input Adapter
- Allows coupling access via a removable cover, eliminating the need to remove the motor during maintenance
- Pairs with NEMA C-face motors (180T–405T)
- Designed for quick and safe servicing in high-duty applications
Foot-Mounted Motor Configurations with the Atlas Adapter
For larger drive packages, the MTA platform includes assemblies featuring the patent-pending Atlas Adapter, enabling seamless integration with heavy-duty foot-mount motors.
- Available for reducer sizes 7–12
- Supports drive packages up to 200 hp (150 kW)
- Compatible with motor frame sizes 364T–447T
- Equipped with a heavy-duty Raptor coupling for enhanced performance and reliability
- Includes fan options that significantly boost thermal capacity, extending lubricant and product life
- Delivered with tie-rod and torque-arm assemblies for a complete installation package
A Versatile, High-Performance Solution for Critical Applications
Combining powerful gearing, flexible mounting options, premium sealing systems, and maintenance-friendly design, the Motorized Torque-Arm provides a compelling solution for operators seeking reliable, long-life performance in demanding industrial environments.
With availability across a wide range of reducer sizes and motor configurations, the MTA stands out as a robust, future-ready drive system engineered to keep operations running at peak efficiency.
