Overview
The Torrington HJ-445628 is a heavy-duty needle roller bearing engineered to meet Military Standard MS 51961-36. Manufactured by Timken, this component is designed for industrial automation, motion control, and mechanical power transmission systems where precision and durability are essential. The HJ-445628 delivers consistent performance in high-speed and high-load applications, making it a proven choice for equipment manufacturers and maintenance professionals.
Key Features
- Meets Military Standard MS 51961-36 specification
- Heavy-duty needle roller construction for compact, high-load capacity design
- Precise engineering for smooth, reliable operation across industrial applications
- New in Box condition ensures factory integrity and extended service life
- Direct replacement option for equivalent bearing assemblies (verify model compatibility)
Technical Specifications
| Manufacturer | Timken (Torrington Division) |
| Part Number | HJ-445628 |
| Military Standard | MS 51961-36 |
| Bearing Type | Heavy-Duty Needle Roller |
| Bore Size | 2 3/4″ (69.85 mm) |
| Mounting Style | Eccentric Collar Mount |
| Bolt Circle | 130 mm |
| Condition | New in Box |
| Application | Industrial Power Transmission, Motion Control |
Typical Applications
- Industrial automation equipment and machinery
- Mechanical power transmission systems
- Motion control and drive systems
- Military and aerospace applications (where MS 51961 spec is required)
- OEM equipment requiring heavy-duty needle roller bearings
- Field maintenance and bearing replacement programs
Compatibility & Replacements
Compatible With
- Industrial equipment requiring MS 51961-36 specification bearings
- Systems designed for 2 3/4″ bore needle roller bearings
- Eccentric collar mount bearing housings (130 mm bolt circle)
- Military and defense sector applications
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator or OEM documentation before ordering
- Confirm bearing housing dimensions and mounting style match
Works With
- Industrial bearing housings with eccentric collar mounts
- Power transmission and motion control systems
- Standard industrial bearing maintenance kits
- Equipment designed to MS 51961 military specification












