The Timken Company 52637D Double Outer Roller Bearing Cup

The Timken 52637D is a TDO (Tapered Double Outer) double-outer cup designed to support heavy radial and axial loads in demanding industrial rotating equipment. With an outside diameter of 6.3750 in and a double cup width of 2.4375 in, this 12.67 lb assembly is designed to pair with Timken-compatible cones 52387, 52393, 52394X, and 52400A in TDO bearing assemblies, and it is commonly used in rolling mills, industrial gearboxes, mining equipment, construction machinery, and paper processing machinery. The double-cup configuration provides a wide effective bearing spread for overturning moment resistance, and the design specifies a housing backing shoulder diameter (Da) of 6.08 in and a maximum housing fillet radius of 0.030 in.