EATON
Torque Limiting Coupling Installation, Operation and Maintenance Manual E-MEQD-II002-E September 2015
7
Torque Limiting Coupling
1.3
TLC adjustment
1.3.1
The Airflex TLC is completely self-adjusting and
automatically compensates for lining and drum
wear. Air line lubrication or any other type of
lubrication is not required. The torque developed
is dependent upon rotating speed and applied air
pressure. By limiting the applied pressure, the
element will act as a torque limiting device and
provide overload protection.
2.0 Installation
Warning
Only qualified personnel should install, adjust or
repair these units. Faulty workmanship will result in
exposure to hazardous conditions or personal injury.
Caution
Do not inflate the element without having a drum in
place. Inflation of the element without a drum
in place will result in permanent damage to the
element components.
2.1
Mounting arrangements
2.1
Airflex TLC applications are available in a single-wide
mounting configuration. See Figure 5. The TLC
configuration is determined by the motor
horsepower, nominal full motor RPM, the allowable
motor overload (service factor) for mill start up
and operation. All TLC’s are supplied with
axial locking devices.
2.2
Mounting considerations
2.2.1
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 this manual will result in
accelerated wear of the TLC components.
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 torque. Excessive dust contamination
may result in incomplete engagement. Either of
these conditions will result in a loss of TLC torque
and slippage and the controls will disengage
the TLC(s).
Caution
All rotating equipment must be guarded to comply
with applicable safety standards.
Drum Hub
Drum
Element
Axial Locking Assembly
Spider
Rotorseal
Single-Wide Mounting
Figure 5
