Effects of Geometric Defects in Journals on Bearing Performance

Shozo Sasaki; Hiromitsu Kato; Kenichi Yamaguchi; Masaru Ando; Masato Isobe

doi:10.4271/870581

1987-02-01

Effects of Geometric Defects in Journals on Bearing Performance 870581

With increased engine output and lower fuel consumption, the operating conditions for engine bearings are becoming more rigorous. With this trend, bearing damage caused by geometric defects in journals occurs. In this paper, the hourglass, barrel and double-barrel shaped journals have been investigated as representative defects in axial geometry. Employing calculations based on the hydrodynamic lubrication theory and experiment, the effects of these axial geometries on bearing performance have been investigated. It was found that the deterioration of precision of these journals invites reduction of oil film thickness and a rise in oil film pressure, and seriously affects seizure and fatigue resistance.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $37.00 Print $37.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

Effects of Geometric Defects in Journals on Bearing Performance 870581

SAE MOBILUS