Super-low Friction Torque Technology of Tapered Roller Bearings for Reduction of Environmental Burdens

摘要

We developed a tapered roller bearing that has super-low friction torque that is up to 80% less than the friction torque of standard tapered roller bearings. It has been confirmed through application on drive pinion bearings in passenger car rear axle differentials that this technology achieves torque and temperature rise levels as low as those of ball bearings. The developed bearings are expected to contribute to higher axle differential efficiency and improved vehicle fuel efficiency, which will result in reduced burdens on the global environment.