Needle Roller Thrust Bearing Bearing Industry Number 3648 Bearing Design NTA TC Bore Diameter 2 1/4 in Cage Material Alloy Steel Compatible Washer TRA-3648 TRB-3648 TRC-3648 TRD-3648 TRF-3648 Lubricant Material Oil Maximum Speed 5 600 RPM Maximum Temperature 248 Degrees F Minimum Temperature -22 Degrees F Outside Diameter 3 in Overall Width 0.078 in Roller Material Alloy Steel System of Measurement Inch Thrust Bearing Type Thrust Needle Roller and Cage Assembly