1. Product Overview The HH914449/12 is a single-row imperial tapered roller bearing composed of separable HH914449 inner cone roller assembly and HH914412 outer cup. It is standard inch size 66.675×177.8×57.15mm, capable of bearing heavy combined radial and one-way axial loads simultaneously. Optimized internal roller crowning reduces edge stress, stable under heavy impact load, widely used in heavy truck drive axles, mining machinery, port equipment and large industrial