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Withdrawal sleeves

Withdrawal sleeves can be used to mount bearings with a tapered bore on the cylindrical seat of stepped shafts (fig. 1). The sleeve is pressed into the bore of the bearing inner ring, which abuts a shaft shoulder or similar fixed component. The sleeve is located on the shaft by a nut or an end plate. Lock nuts or end plates are not supplied with withdrawal sleeves. KM or HM lock nuts (→ Lock nuts) with appropriate locking devices are suitable, but must be ordered separately.
To press the withdrawal sleeve into the bearing bore, a considerable amount of force is required to overcome the friction between the bearing, sleeve and shaft. To facilitate mounting and dismounting bearings on withdrawal sleeves, SKF recommends using a hydraulic nut (fig. 2).
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