37
0635
Mechanical and electrical design
47
Drum with bearings
Description
The inner drum is journalled to the outer drum by two robust bearings in a bea-
ring housing which is bolted to the rear plate. The bearing unit supports the drum
without any support being needed at the front. Shaft seals of the V-type, as well
as O-rings, seal against leakage.
The space between the bearings is packed with grease during assembly. No
additional grease is required.
The inner drum shaft is continuous, and the V-belt pulley is attached to the
protruding journal by an adapter sleeve.
The outer drum end plate consists of two parts, the inner and outer end plates
which are bolted to the bearing housing with through bolts. NOTE: The inner and
outer end plates must not be taken apart when the bearings are replaced.
The outer drum and rear plate are held together by 3 straps.
The outer drum is connected to its resilient suspension by four supports, bolted to
the end plates. It is important that these supports are not loosened from the rear
plate during repairs.
EX 30 S
Fig.
47
Rear bearing
Bearing housing
Front bearing
Inner end plate
Outer end plate
V-belt pulley
Inner drum shaft
