Overview
The Timken 37431 is a single-cone tapered roller bearing built to manage heavy radial and thrust loads in demanding machinery. As the inner ring assembly of a tapered roller bearing set, this cone includes precision tapered rollers and a stamped steel cage, and is paired with the corresponding 37625 cup for complete bearing assembly. The 37431 is widely used in automotive, industrial, and heavy-duty equipment applications where load distribution and durability are critical.
Key Features
- Single-row tapered roller cone for radial and axial load handling
- 4-5/16 inch bore (109.53 mm) with precision ground surfaces
- 30,700 lb dynamic / 40,100 lb static load capacity
- Stamped steel cage with optimized roller spacing
- Precision tolerance for demanding industrial applications
- Compatible with standard Timken 37625 cup assembly
Technical Specifications
- Bearing Type: Single Cone Tapered Roller Bearing (Inner Race)
- Bore Diameter: 4-5/16 inches (109.53 mm)
- Outer Diameter: 6.25 inches (158.75 mm)
- Cone Width: 0.844 inches (21.44 mm)
- Thickness: 23.02 mm
- Maximum Shaft Fillet Radius: 0.2 inches
- Dynamic Load Rating (C90): 30,700 lbs
- Static Load Rating (C0): 40,100 lbs
- Cage Material: Stamped Steel
- Operating Temperature Range: 176–203 °F
- Series: 37000 (TS Type—Tapered Single)
Typical Applications
- Vehicle wheel bearings, transmissions, and differentials
- Industrial gearboxes and reduction gear units
- Construction and mining equipment
- Heavy-duty machinery and power transmission assemblies
- Railway and marine equipment axles
- Agricultural machinery (tractors, harvesters)
Compatibility & Replacements
Compatible With
- Timken 37625 cup (outer race) — standard pairing
- Standard industrial bearing assemblies using imperial tapered roller bearing sets
- Shaft diameters matching 4-5/16″ bore specification
- Equipment designed for TS (Tapered Single) bearing configuration
Replaces / Drop-In Replacement For
- Direct replacement for original equipment Timken 37431 single-row cone assemblies
- Component of complete 37431–37625 bearing set
- Verify compatibility with your system integrator before ordering
Works With
- Timken tapered roller bearing standard assembly methods
- Any industrial equipment requiring precision tapered cone–cup bearing architecture
- Standard bearing installation tooling and procedures
- Both metric and imperial bearing specification systems (imperial designation)
