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Effect of different roller end-flange constructions on the fatigue life of the cylindrical roller bearings: A novel flange deformation formula
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Mechanical Engineering, Yildiz Technical Unversity, Turkey
Submission date: 2023-07-31
Final revision date: 2023-10-03
Acceptance date: 2023-10-18
Online publication date: 2023-10-22
Publication date: 2023-10-22
Corresponding author
Ramazan Bayrak   

Mechanical Engineering, Yildiz Technical Unversity, İstanbul, Turkey
Eksploatacja i Niezawodność – Maintenance and Reliability 2023;25(4):174296
  • Novel formulas for the flange-roller end contact in the cylindrical roller bearings have been derived.
  • Roller-raceway contact pressures have been obtained assuming elastic half-space model.
  • The effect of different roller end-flange designs on fatigue life is investigated.
  • Roller bearing with toroidal roller end-toroidal flange design has been seen having highest life.
This paper performs the fatigue life analysis of the radial Cylindrical Roller Bearings (CRBs) with consideration of various roller end-flange shapes such as toroidal-toroidal, spherical-toroidal, and spherical-conical. A novel formula for each flange contact deformation in cylindrical roller bearing with different roller end-flange geometry including toroidal geometry is developed. Inner ring misalignment angle and radial deflection results obtained from the present study are verified with numerical and experimental results from the literature. The results approach to that of literature when the flange is changed from toroidal geometry to conical geometry. Using formulas developed in the present study, the effect of various roller end-flange geometries on the bearing life is investigated for different external loadings. It is observed that the bearing life increases when the roller end and flange are changed to toroidal geometry.
This paper is based on PhD thesis of the first author at Yildiz Technical University.
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