The Dodge Motorized Torque-Arm II MTA4 with a 22:1 ratio, offered as a reducer for your motor or as a complete gearmotor.
The Dodge Motorized Torque-Arm II (MTA) is a shaft-mount reducer with a right-angle NEMA motor input, built for belt conveyors and other shaft-mounted drives where a V-belt drive is not wanted. It mounts on the driven shaft with twin-tapered bushings, uses a harsh-duty metal-shielded seal system, and is factory-ready for Dodge condition-monitoring sensors.
Specifications
| Type | Shaft-mount reducer with motor input |
|---|---|
| Mounting | Shaft mount, screw conveyor, vertical or flange |
| Bearing life | Minimum Class I L10 life of 5,000 hours (average reducer life 25,000 hours or more) |
| Ratio | 22:1 |
| Input options | NEMA C-face 250TC input; NEMA C-face 280TC input; NEMA TSC short-shaft C-face 280TC input; NEMA TSC short-shaft C-face 320TC input |
| Motor options | Reducer only; With motor (code 2018); With motor (code 3018); With motor (code 3036); With motor (code 5036) |
| Actual ratio | 21.82:1 |
| Output speed (1,750 rpm motor) | 80 rpm |
| Class I output torque | 23,375 lb-in |
| Class I power rating | 32.5 hp |
Part numbers
8 Dodge part numbers on this page; choose the options above to see the matching part number.
| Part number | Input | Motor |
|---|---|---|
| M4H22T25C | NEMA C-face 250TC input | Reducer only |
| M4H22T25C2018 | NEMA C-face 250TC input | With motor (code 2018) |
| M4H22T28C | NEMA C-face 280TC input | Reducer only |
| M4H22T28C3018 | NEMA C-face 280TC input | With motor (code 3018) |
| M4H22T28TSC | NEMA TSC short-shaft C-face 280TC input | Reducer only |
| M4H22T28TSC3036 | NEMA TSC short-shaft C-face 280TC input | With motor (code 3036) |
| M4H22T32TSC | NEMA TSC short-shaft C-face 320TC input | Reducer only |
| M4H22T32TSC5036 | NEMA TSC short-shaft C-face 320TC input | With motor (code 5036) |
Mounting kits and other accessories are in Motorized Torque-Arm accessories.
Catalogs & manuals
- Motorized Torque-Arm II Catalog
- Motorized Torque-Arm II MTA2–12 C-Faced Coupled
- Motorized Torque-Arm II Speed Reducers for Foot Mounted Motors MTA7–MTA12
- Torque-Arm II TXT-E and MTA Speed Reducer Backstop Assemblies
- Motorized Torque-Arm II Speed Reducer Electric Fans
Request a quote for price and lead time, or call 800-985-6929.
Data from Dodge catalogs; confirm details with us before ordering. AutomatedPT is an independent distributor and is not affiliated with Dodge Industrial, Inc. Dodge® and the product names shown are trademarks of Dodge Industrial, Inc.

