1. Product Overview 55200C/55437 is standard inch-size single row separable tapered roller bearing assembly, composed of cone 55200C (inner ring, tapered rollers and pressed steel cage) and cup 55437 (outer ring), overall dimension 50.8×111.125×30.162mm.Model Code Definition - 55200C: Cone assembly model with optimized logarithmic crowned tapered rollers for uniform stress distribution- 55437: Matching single flange outer cup, fully separable from cone for easy separate