Page 212 - Rollingbearings

B.8 Sealing, mounting and dismounting
Dismounting bearings itted
on a withdrawal sleeve

When dismounting a bearing itted on a
withdrawal sleeve, the locking device (for
example a lock nut or end plate) must be
removed
Small and medium-size bearings can be
dismounted with a lock nut and a hook or
impact spanner (ig. 55)
Medium-size and large bearings itted on
a withdrawal sleeve can be easily dis-
mounted using a hydraulic nut
Withdrawal sleeves with a bore diameter
≥ 200 mm are provided, as standard, with
two oil supply ducts and distribution grooves
in both the bore and outside surface When
using the oil injection method, two hydraulic
pumps or oil injectors and appropriate
extension pipes are needed (ig. 56)

 WARNING
Sealing, mounting and dismounting withdrawal sleeve and hydraulic nut
To avoid the risk of serious injury, attach
a stop behind the hydraulic nut at the
shaft end (ig. 57) The stop prevents the

from shooting off the shaft if the sleeve
separates suddenly from its seat

B.8

Fig. 55 Fig. 56 Fig. 57
Dismounting with a lock nut and a hook or Dismounting from withdrawal sleeve with Dismounting from withdrawal sleeve with
impact spanner oil injection aid of a hydraulic nut

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