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مکانیک::
قفس ساچمه
Retainers for ball bearings commonly consist of a machined ring equipped with ball pockets and guided on lands of the outer ring.
At the end of the rig tests visual inspection revealed wear patterns at the cage outer land and ball pocket surfaces consistent with other engine bearings.
The cage showed signs of wear at the outer land riding surfaces and in the ball pockets due to a smattering of silver plating, probably due to marginal lubrication conditions at the areas of sliding contact.
The outer land is worn around the full circumference on the forward and aft sides of the ball pockets.
Measurements of the worn area indicate the presence of phosphorus due to the formation of a deposition film on the land and ball pocket areas.
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