27
Mechanical and electrical design
5015
Back gable and bearing
The back gable and the bearing trunnion housing are constructed of a
webbed heavy casting for extra rigidity. The bearings are protected against
infiltration of water by three neoprene seals. An intermediate safety outlet
provides an escape for any possible condensation.
The seals are mounted on a chrome-plated, noncorrosive, specially
hardened sleeve bushing that is mounted on the drive shaft to prevent
wear of the seals and shaft. The main bearing is fitted tight into the bearing
trunnion housing. A nut is tightened on the shaft to prevent the cylinder
from moving in and out.
The extension of the bearing trunnion housing supports the rear bearing
holding the shaft. A grease seal is mounted to prevent escape of grease.
The bearings are permanently lubricated and need no maintenance.
Fig.
27
EXSM 350 S
27
5014
EXSM 230 S
Summary of Contents for EXSM 230 S
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