Phil Chambley Sr. wrote:
>
> I've never seen deep grooves worn into the races. Given the fact that the
> assembly is lubricated, I imagine it would take an enormous amount of use to
> do that, especially since the relatively soft plastic thrust cup is exerting
> all the pressure.
>
> Your mileage may vary.
>
> 73
> Phil C. Sr.
> k4dpk
>
>
> I was surprised that the race in my PTO was relatively unworn, given the
state of the rest of the PTO. The cage looked like brass, but I suspect
it was bronze because of the lack of wear. The race part of the tuning
shaft was well necked down - I compared it with the new shaft in the
replacement kit - which had the one advantage of reducing the tuning rate!
73
Bob
MM0RKT
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