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Re: How long do they last??
Author: Ken
Date: 05-10-2017 - 12:13

In transit applications, where wheel and rail condition is generally good, roller bearings can last about 400,000 miles. The limit is the life of the grease. Before asbestos was removed from grease the life of the grease was about 700,000 miles.

Roller bearings are to be changes when ever the wheels are changed. I do not think there are any railroad applications where the wheels last 400,000 miles so bearing life should not be an issue. The leading cause of roller bearing failure is the bearing end cap bolts loosen up resulting is a loss of proper lateral clearance. Bolts loosing up is usually a result of vibration. There is a variety of products on the market now to try and address this problem.

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Subject Written By Date/Time (PST)
  How long to they last?? Lori West 05-09-2017 - 20:45
  Re: How long do they last?? Randy 05-09-2017 - 21:17
  Re: How long do they last?? WebDigger 05-09-2017 - 23:32
  Re: How long do they last?? Ken 05-10-2017 - 12:13
  Re: How long do they last?? Espee2472 05-10-2017 - 13:16
  Re: How long do they last?? John Sweetser 05-12-2017 - 14:03
  Re: How long do they last?? Dr Zarkoff 05-12-2017 - 16:57
  Re: How long do they last?? BN Oly 05-12-2017 - 20:22
  Re: How long do they last?? Dr Zarkoff 05-13-2017 - 22:44


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