Deruna Bearing is based in China and lists a range of rolling bearings on Global Trade Plaza. The catalogue includes deep groove ball bearings, automotive hub bearings, cylindrical roller bearings, spherical roller bearings and tapered roller bearings. The deep groove ball bearings are offered in single-row and double-row designs with open, dust-sealed or oil-sealed configurations. Automotive hub bearings are developed from standard angular contact ball bearings and tapered roller bearings and are described as light, compact and easy to assemble. Cylindrical roller bearings are listed in chrome steel with bainite salt-bath heat treatment. Spherical roller bearings feature a spherical outer-ring raceway for self-alignment and lubrication holes and grooves. Tapered roller bearings are available in single-row, double-row, four-row and multi-seal versions with separable cups for adjustable clearance and preload.