2.15
Figure
7
illustrates a typical marine main
propulsion application where the clutch is
mounted between the engine and reduction
gear. In this arrangement, the VC clutch is
combined with a Geislinger* flexible torsional
coupling.
Fig.
7
2.1.6
Figure 8 illustrates a VC clutch mounting for
punch press applications. The drum and
drum hub are attached to the crankshaft or
backshaft and the element is attached to a
bearing-supported flywheel or bullgear. VC
clutches on punch presses are typically used
in combinantion with Air-flex type CTE and DBA
brakes.
2.1.7
Airflex can provide specific drawings covering
the different mounting arrangements men-
tioned. The maintenance of the element as-
sembly, tolerances and wear limits of friction
material, and alignment specifications in this
manual apply to all VC applications.
22
.
Mounting Considerations
2.2.1
For clutch and brake applications, shaft align-
ment must be within the tolerances indicated
in the Alignment section of this manual.
A
! Caution:
2.2.2
The element must be protected from con-
tamination from oil, grease or excessive
amounts of dust.
n
! Caution:
Oil or grease contamination will
result in a reduction of developed
clutch or brake torque. Excessive
dust contamination may result in
incomplete disengagement. Either of
these conditions will result in clutch
or brake slippage and overheating.
n
! Caution:
All rotating equipment must be
guarded to comply with applicable
safety standards.
All mounting fasteners must be of the proper
size and grade, and torqued to the appropriate
value. See Table
1.
n
! Warning:
Use only the proper grade and
number of mounting fasteners. Using
commercial grade fasteners (Grade
2)
in place of Grade
8
fasteners (where
called for) may result in failure under
load, causing personal injury or equip-
ment damage.
-Clutch D
and Hub
Operation with shaft misalignment
exceeding the limits indicated in the
Alignment section of this manual will
result in accelerated wear of the ele-
ment components. Severe misalign-
ment will result in excessive vibration
g
and/or overheating when disengaged
due to dragging of the friction shoes.
t-lg.
8
Flywheel or
-Bullgear
5
0
Copyright Eaton Corp., 1989.
All
rights reserved.
vc
5000
Revised: July, 1995 (PDF format)
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