Installation and Operational Instructions for
EAS
®
-NC Clutches Type 45_._ _ _._
Sizes 02 and 03
(B.4.8.2.1.EN)
29/08/2013 TK/GC/NU/SU
Chr. Mayr GmbH + Co.
KG
Eichenstraße 1, D-87665 Mauerstetten, Germany
Tel.: +49 8341 804-0, Fax: +49 8341 804-421
Page 7 of 11
Permitted Shaft Misalignments
The EAS
®
-NC clutches Type 453._ _ _.0 (with steel bellows)
compensate for radial, axial and angular shaft misalignments
(Fig. 8) without losing its backlash-free function.
However, the permitted shaft misalignments indicated in Table 4
must not simultaneously reach their maximum value.
If more than one kind of misalignment takes place
simultaneously, they influence each other. This means that the
permitted misalignment values are dependent on one another,
see Fig. 9.
The sum total of the actual misalignments in percent of the
maximum value must not exceed 100 %.
The permitted misalignment values given in Table 4 refer to
coupling operation at nominal torque, an ambient temperature of
+30 °C and an operating speed of 1500 rpm.
If the coupling is operated in other or more extreme operating
conditions, please contact the manufacturers.
Fig. 8
Fig. 9
Example (Size 02 / Type 453. _ _ _.0):
Axial displacement occurrence
ΔK
a
ΔK
a
Angular misalignment occurrence
ΔK
W
ΔK
W
=> Permitted radial misalignment ΔK
r
= 30 % of the maximal
value
ΔK
r
= 0,1 mm
=> ΔK
r
Clutch Alignment
Exact alignment of the clutch improves the running smoothness
of the drive line substantially, reduces the load on the shaft
bearings and increases the clutch service lifetime.
We recommend alignment of the clutch using a dial gauge or
special laser on drives operating at very high speeds.
20
30
%
25
%
75
%
0%
50
%
20
40%
40
30%
60
60
80
80
100
100
Δ K
w
[%]
Angular misalignment
Δ K [%] Axial displacement
a
Δ
K
[
%
]
R
a
d
ia
l
m
is
a
lig
n
m
e
n
t
r
L - Δ
0
K
a
L + Δ
0
K
a
Δ
K
r
Δ
K
w
Radial misalignment
Axial displacement
Angular misalignment