Abstract: The performance of 120.65-mm (4.75-in.) bore high-speed design tapered roller bearings was investigated at shaft speeds of 20,000 rpm (2.4 million DN) under combined thrust and radial load. The ...

Abstract: Endurance life tests were run with standard design and optimized high-speed design 120.65-mm- (4.750-in.-) bore tapered-roller bearings at shaft speeds of 12,500 and 18,500 rpm, respectively. ...