1. Product Overview The 72187/72487 inch-size tapered roller bearing is designed for heavy vehicle axles and engineering machinery, bearing combined radial and single-way heavy axial impact load.It is widely used in truck wheel hubs, semi-trailer axles and construction transport equipment where heavy load and easy clearance adjustment are required. Get a quote within 24 hours for your project 2. Technical Specifications Model 72187/72487 (Cone:72187, Cup:72487) Inner Diameter