Needle Roller Thrust Bearing Bearing Industry Number 2031 Bearing Design NTA TC Bore Diameter 1 1/4 in Cage Material Alloy Steel Compatible Washer TRA-2031 TRB-2031 TRC-2031 TRD-2031 TRF-2031 Lubricant Material Oil Maximum Speed 6 000 RPM Maximum Temperature 250 Degrees F Minimum Temperature -5 Degrees F Outside Diameter 1 15/16 in Overall Width 0.078 in Roller Material Alloy Steel System of Measurement Inch Thrust Bearing Type Axial Needle Roller Bearings