SYMPOSIA PAPER Published: 01 January 2002
STP10862S

Development of a New Material for Guide Roll Bearings for Continuous Casting Machine

Source

The guide roll bearings for a continuous casting machine (CCM) are used under extremely low rotation speed, high load, and debris-contaminated and water-infiltrated lubrication. Therefore, raceway surfaces usually wear severely and outer rings are sometimes fractured.

The purpose of this study is to prolong the CCM bearing life by material and heat-treatment technologies. We investigated the fracture process of CCM bearings and developed a new material, case hardened steel, that shows superior wear resistance to SAE 52100 steel. Optimum control of retained austenite and hardness extends rolling contact fatigue life under contaminated lubrication. In the simulation tests of a CCM guide roll, superior wear resistance was confirmed under water-infiltrated lubrication conditions.

Author Information

Yamamura, K
NSK Ltd. Basic Technology Research & Development Center, Kanagawa, Japan
Oohori, M
NSK Ltd. Basic Technology Research & Development Center, Kanagawa, Japan
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Details
Developed by Committee: A01
Pages: 309–319
DOI: 10.1520/STP10862S
ISBN-EB: 978-0-8031-5466-7
ISBN-13: 978-0-8031-2894-1