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Withdrawal sleeves

Withdrawal sleeves

Withdrawal sleeves can be used to mount bearings with a tapered bore onto 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. KM or HM lock nuts (→ Lock nuts) with appropriate locking devices are suitable. Lock nuts are not supplied with the sleeve and must be ordered separately. End plates are not produced by SKF.

fig. 1
Appropriate nuts that facilitate the mounting and dismounting of bearings on sleeves and those required to remove the withdrawal sleeve:

are listed in the product table

must be ordered separately

SKF recommends using a hydraulic nut (fig. 2) to press the withdrawal sleeve into the bearing bore, as a considerable amount of force is required to overcome the friction between the bearing, sleeve and shaft.

fig. 2