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 19,000 RPM, Maximum Temperature 248 Degrees F, Minimum Temperature -22 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