Installation and Operational Instructions for EAS
®
-compact
®
Ratchetting clutch, Type 49_._ _0._
Size 4
Synchronous clutch, Type 49_._ _5._
Size 4
(B.4.14.4.EN)
17/03/2021 TK/GC/NU
Chr. Mayr GmbH + Co. KG
Eichenstraße 1, D-87665 Mauerstetten, Germany
Phone: +49 8341 804-0, Fax: +49 8341 804-421
Page 9 of 22
Output Elements Installation
The output element is centred on a deep groove ball bearing (6)
(tolerance H7/h5) and bolted together with the pressure flange
(2).
Please observe the maximum permitted screw-
in depth in the pressure flange (2) as well as
the connection dimensions "a" and "e" for the
output elements, see Figs. 3 or 4 and Table 14.
If the resulting radial force from the output element is anywhere
near the centre of the ball bearing (6) and under the max.
permitted radial load acc. Table 4, an additional bearing for the
output element is not necessary.
No appreciable axial forces (see Table 4) should be
transferred from the output element onto the clutch
pressure flange (2).
The EAS
®
-compact
®
with a long protruding hub (Type
490._ _ _.1 / Fig. 2) is recommended for extremely wide output
elements, or for elements with small diameters.
On very small diameters, the output element is screwed together
with the clutch pressure flange (2) via a customer-side
intermediate flange.
In case of increased radial forces, a 2-bearing design (Type
490._ _ _.2 / Fig. 2) should be used.
Example:
Type 490.71_.1
Type 490.71_.2
Fig. 2
Ball bearings, needle bearings or bearing bushings are suitable
as bearings for the output element, depending on the installation
situation and the installation space.
Please ensure that the output element bearing is designed
as a fixed bearing (Fig. 4).
Fig. 3
Fig. 4
Table 14
Size
Thread in the pressure flange (Fig. 3)
with required screw quality
and tightening torque for the customer-side
screw connection
Max. screw-in depth [mm]
in the pressure flange (Fig. 3)
Connection dimensions [mm]
(Fig. 4)
a
+0.1
e
H7
h5
4
8 x 45° / M10 or 6 x 60° / M10
12.9
75 Nm
15
12
130
Max. screw-in depth
in the pressure flange
T
h
re
a
d
in
p
re
s
s
u
re
f
la
n
g
e
Ta
p
p
e
d
e
x
tra
c
ti
n
g
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o
le