What is a Withdrawal Sleeves?
Withdrawal sleeves are slotted steel sleeves and are used for fastening bearings with a conical bore on cylindrical shafts. Accordingly, they have a cylindrical bore and a tapered outer surface. In contrast to clamping sleeves, withdrawal sleeves are only suitable for being pushed under the bearing. The thread for screwing on a grooved nut, which also takes over the function of the locking element after assembly, is therefore located on the larger cone diameter.
Withdrawal Sleeves
One-piece or two-piece design
Hydraulic design available
Special dimensions according to customer request
By drawing the bearing onto the sleeve, the bearing clearance is reduced, and a tight fit is produced. As the bearing size increases, the pressing force to be generated also increases. In order to reduce the friction force between the fitting surfaces to be pushed, withdrawal sleeves are designed from a sleeve bore of 140 mm with two hydraulic connections on the thread side – one with access to the oil grooves on the lateral surface, the other with access to the oil grooves on the bore.
Withdrawal sleeves are available in various dimensional series adapted to the bearings to be mounted with a 1:12 or 1:30 taper.
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