VC 5000
7
©Copyright Eaton Corp., 2019. All rights reserved.
2.1.5
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.
Figure 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 combination with Airflex type CTE
and DBA brakes.
2.1.7
Airflex can provide specific drawings covering the
different mounting arrangements mentioned. The
maintenance of the element assembly, tolerances
and wear limits of friction material, and alignment
specifications in this manual apply to all VC
applications.
2.2
Mounting Considerations
2.2.1
For clutch and brake applications, shaft alignment
must be within the tolerances indicated in the
Alignment section of this manual.
⚠
CAUTION
Operation with shaft misalignment exceeding
the limits indicated in the Alignment section of
this manual will result in accelerated wear of the
element components. Severe misalignment will
result in excessive vibration and/or overheating
when disengaged due to dragging of the friction
shoes.
2.2.2
The element must be protected from contamination
from oil, grease or excessive amounts of dust.
⚠
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.
⚠
CAUTION
All rotating equipment must be guarded to
comply with applicable safety standards.
2.2.3
All mounting fasteners must be of the proper size
and grade and torqued to the appropriate value.
See Table 1.
⚠
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
equipment damage.
Figure 8
