Different tolerance value for same dia of shaft

Hi,

I have shaft of x dia which will be held by two bearings at ends.

Is it practical, to specify two different tolerances for two locations on same shaft?

Eg. one tolerance for locations where bearing going to sit and different tolerance for middle part of shaft.

If it is done in real pratice, how do I show in SW drawing? Do I have to model shaft as three sections( two end and one middle)of same diameter?

If it is not done in real practice, what would be the good way to model this shaft?

Thanks,

Reeshi

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