
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 6 of 22
Technical Data Type 494._ _ _._
Table 6
Bore lastic-side from
– to
Size
Respective
ROBA
®
-ES
Size
Clamping hub (32.2)
Type 494._0_._
[mm]
Shrink disk hub (32.1)
Type 494._1_._
[mm]
Key hub (32.3)
Type 494._2_._
[mm]
4
65
45
– 80
45
– 75
38
– 80
Table 7
Nominal and maximum torques, flexible backlash-free shaft coupling, T
KN
and T
K max.
Type 494._ _ _.3
(yellow elastomeric element 92 Sh A)
Type 494._ _ _.4
(red elastomeric element 98 Sh A)
Type 494._ _ _.6
(green elastomeric element 64 Sh D)
Size
T
KN
[Nm]
T
K max.
[Nm]
T
KN
[Nm]
T
K max.
[Nm]
T
KN
[Nm]
T
K max.
[Nm]
4
900
1800
1040
2080
1250
2500
Table 8
Transmittable torques T
R
[Nm] on clamping hubs frictional locking (Item 32.2 / Type 494._0_._)
- dependent on bore - suitable for tolerance constellation F7/k6
Size
Ø 45
Ø 48
Ø 50
Ø 52
Ø 55
Ø 58
Ø 60
Ø 62
Ø 65
Ø 68
Ø 70
Ø 72
Ø 75
Ø 78
Ø 80
4
545
590
630
662
710
764
800
840
900
954
990
1032
1095
1158
1200
Table 9
Transmittable torques T
R
[Nm] on shrink disk hubs frictional locking (Item 32.1 / Type 494._1_._)
- dependent on bore - suitable for tolerance constellation H7/k6
Size
Ø 45
Ø 48
Ø 50
Ø 52
Ø 55
Ø 58
Ø 60
Ø 62
Ø 65
Ø 68
Ø 70
Ø 72
Ø 75
4
1195
1425
1595
1680
1945
2210
2395
2575
2855
3140
3330
3525
3825
Table 10
Shaft misalignments flexible coupling Type 494.
Dim.
“E”
(Fig. 7)
[mm]
Locking set screw (36)
for hub (Item 32.3 / Fig. 1)
Axial ΔK
a
Radial ΔK
r
Angular ΔK
w
Size
[mm]
92 Sh A
[mm]
98 Sh A
[mm]
64 Sh D
[mm]
92 Sh A
[°]
98 Sh A
[°]
64 Sh D
[°]
Thread
Tightening
torque
[Nm]
4
2.6
0.25
0.18
0.13
1.0
0.9
0.8
35
M10
20