Bearing Type Tapered Roller , Bore Length 4.75 in, S1U538-HC-203 HINGED CAP , Dynamic Load Capacity 10716.0 lbf, Greasable - Yes , Grease Name MobilGrease XHP222 , Insert Outer Diameter 5.38 in, Maximum Speed 2500.0 RPM, Shaft Attachment Tapered Adapter , Shaft Diameter 2.1875 in