Journal
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
Volume 128, Issue 3, Pages 604-611Publisher
ASME
DOI: 10.1115/1.2197527
Keywords
dynamics; simulation; cage; tapered roller bearing
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A three-dimensional dynamic simulation analysis of a tapered roller bearing was performed using commercially available software. Without cage pocket shape simplification, the dynamic motion of the cage and rollers was calculated in six degrees of freedom. The motion of the cage and rollers was measured experimentally to verify the analysis. Under. all axially loaded conditions, cage whirl was analytically predicted and experimentally confirmed. Whirl amplitude increased as the inner-ring rotational speed and axial-load magnitude increased. The maximum whirl amplitude reached the radial clearance between a roller and its pocket. Under combined load conditions, the cage also whirled. However the whirl amplitude was smaller than only under axial load. Load distribution due to the addition of radial load to axial load equalized roller distribution. Equally distributed rollers limited the cage's movable distance to circumferential clearance between a roller and its pocket.
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