Mounting The Main Bearing - Virtus H 80 Series Operating Manual

PART A: Basic machine
Granulator
H 80 Series
8.6.2

Mounting the main bearing

 Before mounting, clean the bearing surfaces and the shaft surfac-
 Mount bearing in bearing housing.
 Attach the bearing with the bearing housing to the rotor axis.
HINT
 Lift the rotor using suitable lifting and stopping equipment and put
 Attach the bearing housing (Pos. ) to the granulator lower section
 Mount the cutting knives.
 Close the granulator upper section (see Closing the granulator).
 If the granulator is equipped with a disk flywheel:
 Push the disk flywheel onto the rotor axis and tighten using the
 Push the distance sleeve (Pos. ) onto the rotor axis.
 Mount the "V"-belt pulley and tighten using the tensioning element.
 Pull on "V"-belts and adjust the "V"-belt tension force
 Attach the "V"-belt cover.
 Carry out a test run.
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To mount the bearings proceed as follows:
es thoroughly and grease lightly.
• During mounting, the mounting forces must always en-
gage into the inner ring, otherwise the roller bodies will
be damaged.
• The hardened bearing rings are sensitive to impact
stress. For this reason, never hit directly on the rings
with the hammer, use instead preferably a brass arbor or
better still a striking bush (piping piece) made from a soft
material. The inner diameter of the striking bush should
be only slightly larger than the diameter of the bearing
base.
• The bearing is then pushed onto the shaft using light
blows. When doing this, the force of pressure must be
evenly distributed on the circumference of the bearing
ring.
• If the plummer block is also replaced, the rotor must be
readjusted to the centre of the granulator.
carefully into the receptacle of the granulator lower section.
using screws.
tensioning element.
(see, Mounting and dismounting TAPER-LOCK tensioning ele-
ment).
( see Retensioning and relaxing the "V"-belt).
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