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Re: How long do they last??
Author: Espee2472
Date: 05-10-2017 - 13:16

Ken Wrote:
-------------------------------------------------------
> 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.

and if the rr's could change out the
flat rollers, that would elevate half of the 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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