CARB® toroidal roller bearings – a revolutionary ... - Acorn Bearings

1 Product information 2 Recommendations 3 Product data
Page ............. 3 Cylindrical seating Page ............. 37
Dismounting
If CARB toroidal roller bearings are to
be re-used after dismounting, the
force used for dismounting should
never pass through the rollers. The
ring with the looser fit should be withdrawn
from its seating first. There are
three methods available to dismount
the bearing ring that has been mounted
with an interference fit: mechanical,
hydraulic or the oil injection method.
Detailed information on the dismounting
of bearings is contained in
publication 4100 “SKF Bearing Maintenance
Handbook”.
The puller is
applied to the side
face of the inner
ring
Fig
1
Dismounting from
a cylindrical seating
SKF puller
with hydraulic
assistance
Fig
2
CARB toroidal roller bearings having
a bore diameter up to approximately
120 mm that have been mounted with
an interference fit on the shaft can be
removed using a conventional puller.
The puller should be applied to the
face of the ring to be dismounted (➔
fig 1 ). By turning the puller spindle
the bearing is easily removed from the
cylindrical seating.
For larger bearings, the withdrawal
forces are considerable. In these cases,
the use of pullers with hydraulic assistance
(➔ fig 2 ) or the SKF oil injection
method should be used.
CARB toroidal roller bearings that
have an interference fit for both rings
should be pressed out of the housing
together with the shaft. On the other
hand it is also possible to withdraw the
bearing with the housing from the shaft,
particularly if the oil injection method is
applied (➔ fig 3 ).
Small CARB toroidal roller bearings
mounted with an interference fit in a
housing bore without shoulders can
be removed using a dolly applied to
the outer ring. Larger bearings require
more force to remove them and a
press is required.
CARB toroidal
roller bearing on a
cylindrical seating
being removed
using the oil
injection method
Fig
3
34