An Analytical Investigation of Cylindrical Roller Bearings Having Annular Rollers

Abstract

Cylindrical roller bearings with annular rollers may be advantageous in applications where weight, lubrication, and speed are major considerations in the operation of the bearing. This discussion describes an analytical technique whereby the effects of the elastic and Hertzian distortions of the hollow rollers are considered in the determination of the bearing internal load distribution, fatigue life, and deflection. Numerical examples calculated for a bearing having annular rollers indicate that the distortion of the flexible rollers improve the load distribution permitting increased bearing fatigue life. The advantage must be compared with the increased bearing deflections and bending stresses in the hollow rollers to determine the adequacy of the bearing under given conditions of applied load and speed. Additionally, the skidding of the cylindrical roller bearing with annular rollers is considered for conditions of high speed and extremely light radial load.

Presented as an American Society of Lubrication Engineers paper at the Lubrication Conference held in Minneapolis, Minnesota, October 18–20, 1966.

Notes

Presented as an American Society of Lubrication Engineers paper at the Lubrication Conference held in Minneapolis, Minnesota, October 18–20, 1966.