Withdrawal sleeves
Suitability and function
Withdrawal sleeves are suitable where bearings with a tapered bore are located on cylindrical shafts. The tapered sleeve is pressed into the bearing bore until the required reduction in radial internal clearance is achieved. The bearing must be axially supported during this process, for example by means of a shaft shoulder.
Withdrawal sleeves give easier dismounting of the bearings, as the press fit of the bearing can be loosened with the aid of a locknut applied to the withdrawal sleeve.
Design features
The tensile strength of the withdrawal sleeve material is at least 430 N/mm2. Withdrawal sleeves are slotted and have a shaft thread for the locknut. Depending on the series, the outside surface of the withdrawal sleeves has a taper of 1:12 or of 1:30.
Withdrawal sleeves
|
Series |
Taper on the outside surface |
|---|---|
|
AH2, AH(X)3, AH22, AH(X)23, AH28, AH(X)30, AH(X)31, AH(X)32, AH33, AH38, AH39 |
1:12 |
|
AH240, AH241, AH242, AH248, AH249 |
1:30 |