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Any Bearing Can be Conveniently Heated And Mounted. Small and Medium Sized Bearing Up to 20-25 mm ID can be cold mounted using a bearing fitting kit but any bearing having ID of 40 MM or more must never be cold mounted.
Ref Fig 1 : Please Understand Bearing Can cause Scoring on shafts
Ref Fig 2 : Thus Damaging the shaft this happens because bearing Hard (60 - 62 Rc) whereas shafts are generally soft. moreover forcing bearing on shaft manually or hydraulically can cause Internal Damage to bearing
Ref Fig 3 : As the bearing ID increase beyond 40 MM the interference between bearing/shaft is high and hence it is mandatory to do Hot mounting.
Ref Fig 4 : Heating Causes the necessary expansion of bearing/ Coupling damage to both shaft and bearing
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