Operating instructions

32
Back gable and bearing
The back gable and the bearing trunnion housing are constructed of a
webbed heavy casting for extra rigidity. There are three neoprene seals to
protect from filtration of water. The sleeve bearings are water protected. An
intermediate safety outlet provides an escapement for any possible con-
densation.
The seals are mounted on a chrome-plated, non-corresive, specially harde-
ned sleeve bushing that is mounted on the drive shaft to prevent wear of
the seals and shaft. The main bearing is fitted machine-tight into the bea-
ring trunnion housing. A C-clamp is placed 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. The bearings are permanently lubricated and need no
maintenance.
Mechanical and electrical design
2412
49
Rear wall
Fig.
49
Inner wall
Bushing
Sealing rings
Front bearing
Bearing housing
C-clamp
Rear bearing
EX7