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| Re: Technical Discussion About Axle Journal Bearings (694479) | |||
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Re: Technical Discussion About Axle Journal Bearings |
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Posted by Jeff H. on Thu Oct 16 00:18:44 2008, in response to Re: Technical Discussion About Axle Journal Bearings, posted by irt1958 on Wed Oct 15 06:39:21 2008. I'm pretty sure the MS cars had roller bearings, as did the lastfew of the D units. BMT was ahead of the game. I'm also pretty sure that roller bearing journals were tried on some R-9 cars, but perhaps that was just a proposition that was not implemented. I know for a fact that the R9s which survived into the mid-to-late 1970s did get ball and roller bearings for their traction motors to replace the original babbitted bronze friction bearings with oil-soaked waste packing. |
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