Analysis of Double-Row Tapered Roller Bearings, Part II – Results: Prediction of Fatigue Life and Heat Dissipation

Abstract

The model developed to predict the performance of double-row tapered roller bearings (DRTRB) and described in the first part of the paper is now exemplified. For a given example results on the internal load distribution, bearing fatigue life and hear generation are presented and discussed for various operating conditions including the mounting preload. It is revealed that some sliding occurs at the contact between the rollers and the cone that contributes significantly to the total power dissipated within the bearing. It is also shown that an optimum axial compression (or mounting preload) may be found in terms of fatigue life and heat dissipated. As the main conclusion the initial compression between bearing rows was found to play a major role upon the bearing behavior and therefore should be considered carefully for each application.

Presented at the 56th Annual Meeting in Orlando, Florida May 20–24, 2001

KEY WORDS:

• Tapered Roller Bearings
• Rolling Element Bearings

Notes

Presented at the 56th Annual Meeting in Orlando, Florida May 20–24, 2001