1. Product Overview 55KW02 single row tapered roller bearing, standard dimension 55×105×36mm, matched for light and medium commercial truck front & rear wheel hub assemblies. Open structure without rubber seals, steel stamping cage, standard C0 clearance. Taper roller structure bears combined heavy radial and axial load, stable operation under vehicle bump and heavy load impact. Fully quenched GCr15 chrome steel with precise dimensional tolerance, fully interchangeable with