Mayr EAS 437 Series, Installation And Operation Instructions

Page: 3 / 3

Installation and Operational Instructions for
EAS
®
-lastic clutches Type 437._ _ _.0
(B.4.11.GB)
23/05/2006 K/TK/GC/RJ Chr. Mayr GmbH + Co. KG Tel.: 08341 / 804-0
Eichenstraße 1 Fax: 08341 / 804-421
87665 Mauerstetten http://www.mayr.de
Page 3 of 3 Germany eMail: info@mayr.de
Permitted Shaft Misalignment
The misalignment possibilities on the flexible coupling, shown in
Table 2, are maximum values. It is however important for a long
lifetime and smooth running that the alignment is as exact as
possible.
Fig. 3
Table 2
Size 0 1 2 3 4 5
x [mm] -1/+3 -1/+3 -1/+3 -1/+3 -1/+3 -1/+3
y [mm] 1 1 1 1 1 1
α α α α
[°] 1 1 1 1 1 1
Maintenance
The EAS
®
-clutch (1) has a grease filling and therefore requires no
greasing for the rest of its service lifetime. The axial backlash on
both clutch-supporting shafts should be inspected at regular
intervals. Too much bearing backlash can misalign the clutch axially.
This leads to changes in switching time and therefore to changes in
disengaging torque. Apart from this, the EAS
®
-clutch needs no
further maintenance.
Special maintenance is necessary should the device be subject to
very dirty, dusty or extreme ambient conditions. In this case, please
contact the manufacturers.
Disposal
Electronic Components
(Limit switch):
Products which have not been dismantled can be disposed of under
160214 (Mixed Materials) or Components under Code No.160216; or
the objects can be disposed of by a certified waste disposal firm.
All Steel Components:
Steel scrap (Code No. 160117)
Seals, O-rings, V-seals, elastomere, rubber buffers:
Plastics (Code No. 160119)
Malfunctions / Breakdowns
Malfunction Possible Causes
Disturbed running, bearings overheat during running
Excessive axial pressure on the pressure flange; clutch is
incorrectly aligned.
Clutch does not disengage on overload Torque is set too high
Cup springs are layered wrongly
The axial pressure from the drive element is greater than the cup
spring pre-tension
Clutch disengages too quickly Torque is set too low
Large amount of wear on the ball or roller recesses
Clutch does not disengage on overload or disengages too late Incorrect limit switch setting
Switching element (1.1) constantly performs axial movements when
in operation Torque on clutch set too low
(Difference between operating torque and overload torque is too
small)
Torque peaks at low energy (Please contact the manufacturers)
y
x
αααα