1. Product Overview 32311 JR is single row metric separable tapered roller bearing, dimension 55×120×41.25mm. JR optimized logarithmic crowned rollers eliminate edge stress and reduce running heat. Separable cone and cup design simplifies installation, inspection and parts replacement. It withstands heavy radial load plus one-way axial thrust load, widely used in heavy truck differentials, tractor drive axles and construction machinery reducers. 2. Technical Specifications