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Provision for mounting and dismounting

It is often necessary to make provisions during the design stage to facilitate mounting and dismounting of a bearing. If, for example, slots or recesses are machined in the shaft and/or housing shoulders, it is possible to apply withdrawal tools (fig. 1). Threaded holes in the housing shoulders also enable the use of bolts to push the bearing from its seat (fig. 2).
If the oil injection method is to be used to mount or dismount bearings on a tapered seat, or to dismount bearings from a cylindrical seat, ducts and grooves should be provided in the shaft (fig. 3). Recommended dimensions for the appropriate grooves, ducts and threaded holes to connect the oil supply are listed in table 1 and table 2.
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