Dodge 066279 DU-SD-211 Is A Tapered Roller Bearing Insert With A 2-11/16" (2.6875") Bore And A Clamp Collar Shaft Attachment. It Features A 6.5" OD, A 5.75" Bore Length, And Is Greasable For Maintenance. Rated For Speeds Up To 1750 RPM, This Heavy-Duty