Member Contributer BusyLittleShop Posted April 20, 2009 Member Contributer Share Posted April 20, 2009 The 5th and 6th generation VFR and RC45 share the same 62x50x25 needled bearing that supports the rear axle... p/n 91062-MR7-003 I don't know if this was peculiar to just one bearing or this will be true on all the bearings we order in future... but when I installed my new bearing into the cassette it would not travel down far enough to clear the retaining clip... so I removed the bearing and according to my micrometer it was indeed the right size... however the edge on the seal side was more square than rounded... I chucked it up in the Lathe and employed my Dotco air driven sander and ground the edge as round as the one it replaced... with this mod the bearing traveled far enough to clear the retaining clip... Link to comment Share on other sites More sharing options...
V4 Rosso Posted April 20, 2009 Share Posted April 20, 2009 ... however the edge on the seal side was more square than rounded... Did the bearing have different radii on each side? Link to comment Share on other sites More sharing options...
Member Contributer BusyLittleShop Posted April 20, 2009 Author Member Contributer Share Posted April 20, 2009 ... however the edge on the seal side was more square than rounded... Did the bearing have different radii on each side? Yes... the opposite side seemed to have more radii... Link to comment Share on other sites More sharing options...
Member Contributer JZH Posted June 20, 2016 Member Contributer Share Posted June 20, 2016 Thread revival warning!!! Found this old thread in a Google search whilst looking for sources for that particular needle bearing. From studying the picture above it appears that this is an OEM-sourced NTN bearing, not an aftermarket version (such as that sold by PivotWorks). That's worrying! FYI, the RC36 and RC30 also use that bearing, which is a little bit unusual in that it has a seal, but only on one side. I've heard of people foregoing the OEM bearing (due to expense) and using a standard industrial bearing without the seal, reasoning that the bearing seal has no actual purpose, given the bearing's location within the bearing carrier (and sealed on the outside with a separate seal) means that there is nothing really to seal. Ciao, Link to comment Share on other sites More sharing options...
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