6.6. SECURING OF HOLLOW SHAFT GEAR UNITS
6.6.1. Hollow shaft gear unit with shrink disc connection
The Hansen Industrial Transmissions nv supplied shrink disc is ready to be installed.
Do not dismantle shrink disc prior to first mounting.
The two-part shrink disc is used as standard (fig. 1c).
Another execution is available on request. Always refer to the dimensional drawing and the appropriate service
manual of the shrink disc.
Mounting (fig. 1a)
- Clean and degrease contact surfaces (a) and (b).
- Smear surface (b) - and not surface (a) - with "Molykote D321R" or similar.
- After the applied coating has hardened, slide the O-ring (c) onto the shaft.
- Draw the gear unit onto the shaft of the machine using threaded rod (e), nut (f) and distance ring (g) until faces
(h) and (i) make contact.
- Fit shrink disc (s). A locating groove on the shaft indicates the position of the shrink disc. Tighten bolts (ZS) with
a torque wrench. The required tightening torque for the two-part shrink disc is indicated in table 1 and on the
name plate (p).
Tightening bolts are prestressed to the right level when outer ring (o) and inner ring (n) are flush (optical check).
Tighten bolts (ZS) in indicated sequence (q) one by one, progressively over several rounds, until required
tightening torque (TA) is reached.
Do not tighten bolts crosswise.
Mount protection hood.
NOTE: Never tighten bolts when shrink disc is unmounted.
ENGLISH
22
a
c
b
h
i
s
ZSZS
e
f
g
•
•
FIG.1a
MOUNTING
ZY
g
l
•
•
FIG.1b
DISMOUNTING
1
2
3
4
5
6
7
8
9
q
o
r
ZS
n
a
p
n
FIG.1c
21
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