Needle Roller Thrust Bearing Bearing Industry Number 815 Bearing Design NTA TC Bore Diameter 1/2 in Cage Material Alloy Steel Compatible Washer TRA-815 TRB-815 TRC-815 Lubricant Material Oil Maximum Speed 18 000 RPM Maximum Temperature 250 Degrees F Minimum Temperature -5 Degrees F Outside Diameter 15/16 in Overall Width 0.078 in Roller Material Alloy Steel System of Measurement Inch Thrust Bearing Type Thrust Needle Roller and Cage Assembly