MVA 02 rev 5 - December 2017
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Fig. 10-9
ST…B… one-piece support with radial ball bearings on impeller side and roller bearings on
transmission side
On Type ST…B… supports, the shaft must be extracted from the impeller side. On Type ST…A… supports,
the shaft can be extracted from both sides. It is however advisable to always extract the shaft from the
impeller side, above all when you are not certain of the type of support to be dismantled.
The steps for support shaft dismantling are as follows:
1.- For supports with a cooling fan installed, the cooling fan must first be dismantled (Fig. 10-10).
Fig. 10-10 Support with cooling fan
Type ST…B… support
Ball/roller bearings
Impeller side
(LG)
Pulley side
(LP)
