Technical Reports

Laboratory Investigation of Roller Bearing Damage Due to Impact

  • 01
  • Dec
  • 1988
AUTHOR: J. Kesler, W. Jordan, R. Owings
SUBJECT: Facilities & Test Equipment
KEYWORDS: Wheel Impact, Impact Loading, Stress
ABSTRACT: This report presents the results of a two phase testing program to measure the strains in the roller separators (cages) of a bearing during impact loading. The impact loading is similar to the impacts encountered during in-service operations with flat spots on the wheels. The first phase of the program was conducted at the ENSCO facility located in Springfield, Virginia while the second phase was conducted at the Southern Railroad Research Facility in Alexandria, Virginia. The results show that significant stresses on the bearing roller separators can be generated from impact. The mechanism for generating the strain was not investigated as part of this effort.