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Unread 18-01-2006, 18:32
Joe Johnson's Avatar Unsung FIRST Hero
Joe Johnson Joe Johnson is offline
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Re: Shaft size of Big "FP" CIM Motor

Quote:
Originally Posted by Al Skierkiewicz
I have it on reliable source that it is 5/16" with a flat ground on one side.
Hmmm I thought it was 8mm (.315"). It is only 2-3 thousandths of an inch differenence (5/16=.3125")

Anybody have a tie breaker?

I just check the step file on AndyMark.biz: Andy has modelled the shaft as 8mm with a flat at distance of 3.531mm (.139") from the centerline (= 7.531mm= .269" from the OD opposite the flat to the flat).

I hope this helps.

Joe J.
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