The Dodge Torque-Arm II TA0107L31 is a size 0 shaft-mount speed reducer with a 31:1 nominal ratio (30.94:1 actual), double reduction. TA II reducers mount directly on the driven shaft with Dodge’s twin-tapered bushings, use tapered roller bearings and a harsh-duty, metal-shielded seal system, and are factory-ready for Dodge condition-monitoring sensors.
Specifications
| Model | TA0107L31 |
|---|---|
| Dodge part number | 900000 |
| Case size | TA0107L (size 0) |
| Nominal ratio | 31:1 |
| Actual ratio | 30.94:1 |
| Gearing | Double reduction, helical |
| AGMA code | 107D31 |
| Weight | 41.2 lb |
| Mounting | Shaft mount, flange mount, screw conveyor or vertical |
| Standard-shaft bushing bores | 1-7/16, 1-3/16 in |
| Short-shaft bushing bores | 1-3/16 in |
Part numbers
| Part number | Version |
|---|---|
| 900000 | Taper-bushed (order twin-tapered bushing kit separately) |
Taper-bushed reducers need one twin-tapered bushing kit sized to your driven shaft. Backstops, motor mounts, belt guards, tie rods, cooling fans and screw-conveyor kits for the TA0107L are in Torque-Arm accessories.
Catalogs & manuals
- Torque-Arm catalog
- TA II brochure
- TA II flyer
- MN1601 – TA II reducers, ratios 5–40:1
- MN1643 – Installation and instruction manual
- MN1641 – Tapered & short-shaft bushing assemblies
- MN1639 – Motor mounts
- MN16023 – Belt guard assemblies
- MN1640 – Backstop assemblies
Specifications from the Dodge Torque-Arm catalog. AutomatedPT is an independent distributor and is not affiliated with Dodge Industrial, Inc.

