For concentric grip on the shaft and less vibration at higher speeds, specify Dodge D-LOK normal- or medium-duty mounted ball bearings. These unique, concentric collar bearings are engineered with attributes that assure you superior holding power with improved concentricity. Even at high speeds, the D-LOK bearing grips the shaft tighter and more uniformly for less vibration. Dodge Take-Up Ball Bearing, Medium Duty Non-Expansion Single Lip Wide Slot, Series: 210, 1-11/16 in Bore Dia, 5.82 in Length, 2.01 in Width, 4-3/4 in Height, 7891 lb Dynamic/5213 lb Static, For Use With: WS400 Take-Up Frames, Steel Bearing, Uncoated Precision-hardened and honed inner and outer ringsNew rugged housing designNormal duty wide inner ringD-LOK locking mechanismDual guard positive contact seal including rubberized flingersStronger and flexible ball retainerSimplified anti-rotation device