Roller Thrust Bearing Washer Bore Diameter 5/16 in Compatible Bearing 512 For Thrust Bearing Type Needle Roller Lubrication Type Lubrication Required Maximum Temperature 250 Degrees F Minimum Temperature -5 Degrees F Outside Diameter 3/4 in Self Lubricating Bearing No System of Measurement Inch Washer Thickness 1/16 in Maximum PV Not Applicable Series TRB TWB Washer Material Alloy Steel Washer Material Grade 52100