Roller Thrust Bearing Washer Bore Diameter 3 in Compatible Bearing 4860 For Thrust Bearing Type Needle Roller Lubrication Type Lubrication Required Maximum Temperature 248 Degrees F Minimum Temperature -22 Degrees F Outside Diameter 3 3/4 in Self Lubricating Bearing No System of Measurement Inch Washer Thickness 1/32 in Maximum PV Not Applicable Series TRA TWA Standards ANSI/ABMA 21.2 Washer Material Alloy Steel Washer Material Grade 52100