Roller Thrust Bearing Washer Bore Diameter 2 1/4 in Compatible Bearing 3648 For Thrust Bearing Type Needle Roller Lubrication Type Lubrication Required Maximum Temperature 248 Degrees F Minimum Temperature -22 Degrees F Outside Diameter 3 in Self Lubricating Bearing No System of Measurement Inch Washer Thickness 1/8 in Maximum PV Not Applicable Series TRD TWD Standards ANSI/ABMA 21.2 Washer Material Alloy Steel Washer Material Grade 52100