Needle Roller Thrust Bearing Bearing Industry Number 4860 Bearing Design NTA TC Bore Diameter 3 in Cage Material Alloy Steel Compatible Washer TRA-4860 TRB-4860 TRD-4860 Lubricant Material Oil Maximum Speed 4 400 RPM Maximum Temperature 248 Degrees F Minimum Temperature -22 Degrees F Outside Diameter 3 3/4 in Overall Width 0.078 in Roller Material Alloy Steel System of Measurement Inch Thrust Bearing Type Thrust Needle Roller and Cage Assembly