Page 68 - Y-bearing-units

Mounting instructions

Mounting instructions 12 Make sure the shaft turns smoothly and the
for flanged Y-bearing units bearings are not jammed in place. If neces-
sary, remove the last Y-bearing unit to be
mounted, determine a new installation
with a cast housing and an adapter sleeve position for the adapter sleeve on the shaft
and mount the Y-bearing unit again.
1 Mount any components that are on the 13 If the shaft turns smoothly, secure the
shaft between the two Y-bearing units. Y-bearing unit on the adapter sleeve by
2 Determine the position of the adapter bending down a tab on the locking washer
sleeve on the shaft († fig. 1). Take into into one of the slots provided around the
consideration that later during mounting circumference of the nut († fig. 5).
– the Y-bearing unit will move axially on 14 If applicable, snap the end cover(s) into
the sleeve or vice versa place.
– the shaft will move axially against the
Y-bearing unit.
This is particularly important when mount-
ing the second Y-bearing unit.
3 Remove the nut and locking washer from
the adapter sleeve († fig. 2).
4 Wipe the preservative from the bore and
outside surface.
5 Expand the adapter sleeve slightly by
inserting a screwdriver in the slot of the
sleeve and slide the adapter sleeve into
position on the shaft († fig. 3).
6 Slide the Y-bearing unit up onto the adapter
sleeve with the large end of the tapered
bore leading, but do not push it.
7 Fasten the Y-bearing unit securely to the
machine wall.
8 Install the locking washer and screw the
lock nut onto the adapter sleeve until the
Y-bearing unit is firmly in position on the
sleeve.
9 Further tighten the lock nut using one
of the following:
– a hook spanner in the HN series to
a tightening angle of about 70°
(† fig. 4)
– a TMHN lock nut spanner to a tightening
angle of about 70°
– a torque wrench to the tightening torque
indicated in table 2 on page 55
Make sure that while tightening the nut, the
sleeve does not rotate on the shaft.
10 Lock the nut in position by bending down
a tab on the locking washer into one of the
slots provided around the circumference
of the nut († fig. 5).
11 Mount the second Y-bearing unit at the
other end of the shaft, following steps 2
through 9.

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