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What is bearing preloading? What is its benefit?

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Question added by Ajay Kumar Singh
Date Posted: 2017/10/20

Bonjour ,en français ; les roulements pour le  guidage en rotation . les avantages : évité le frottement et epporte les charges axiale et radial important selon le type

gregory pineault
by gregory pineault , shop foreman outside machine shop/field engineer , VSE GLOBLE

The type of bearing that is preloaded are normally tapered roller bearings. the bearings are preloaded by tightening the nut to set tourqe and then by losening to a set point IE. 1/8 flat or as perscribed by the manurfacter .

Yes alignment is a factor but Setting of the running clearance between the rollers and iner and outer races is a bigger factor for a cool running bearing.

mustafa almarzooq
by mustafa almarzooq , Project Engineer , Wipro Arabia limited

Bearing Preload is a thrust load applied to a bearing that removes excess play to eliminate misalign 

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