Timken NTA-2031 Thrust Needle Roller Bearings

Description:

The Timken NTA-2031 thrust needle roller bearing is used to support high axial loads in compact industrial assemblies where space is limited and minimal axial cross-section is required. Commonly installed in automotive transmissions, gearboxes, machine tools, pumps, compressors, and industrial power transmission equipment requiring low-friction thrust load support. Maintenance teams, OEMs, and system integrators use this thrust bearing for replacement, repair, retrofit, and equipment overhaul to restore smooth axial motion and extend equipment service life.

Applications:

The Timken NTA-2031 thrust needle roller bearing is designed to accommodate axial loads while maintaining a compact profile and low friction when used with compatible hardened thrust washers. It is widely used in manufacturing equipment, agricultural machinery, automotive drivetrains, material handling systems, and industrial gearboxes where reliable thrust load capacity and efficient rotational performance are essential.

Technical Specifications:

• Manufacturer: Timken
• Manufacturer Part Number (MPN): NTA-2031
• Product Type: Thrust needle roller bearing
• Bearing Type: Needle roller thrust bearing
• Bore Diameter: 1.250 in (31.75 mm)
• Outside Diameter: 1.937 in (49.20 mm)
• Width: 0.0781 in (1.984 mm)
• Compatible Thrust Washers: TRA-2031 series
• Dynamic Load Rating: 4,530 lbf (20.15 kN)
• Static Load Rating: 21,000 lbf (93.41 kN)
• Limiting Speed: 8,600 rpm
• Bearing Construction: Needle roller and cage assembly
• Material: Hardened bearing steel
• Approximate Weight: 0.021 lb (0.010 kg)

Common Replacements:

• Timken NTA-2031 with TRA-2031 thrust washers
• SKF NTA-2031
• NTN NTA-2031