Installation and Operational Instructions for
ROBA
®
-ES Couplings Type 94_._ _ _._ Sizes 14
– 65
(B.9.6.EN)
11/03/2022 TK/GH/GC/MD
Chr. Mayr GmbH + Co. KG
Eichenstraße 1, D-87665 Mauerstetten, Germany
Phone: +49 8341 804-0, Fax: +49 8341 804-421
Page 26 of 29
ROBA
®
-ES Coupling Dimensioning
Service Factors for Coupling Dimensioning
V
R
= Resonance factor
n
R
= Resonance speed
n
R
=
30
π
√
C
T dyn.
J
A
+ J
L
J
A
x J
L
[rpm]
f
R
= Resonance frequency
f
R
=
1
2π
√
C
T dyn.
J
A
+ J
L
J
A
x J
L
[1/s]
S
n
= Speed factor
S
f
= Frequency factor
F in Hz
≤ 5
> 5
S
f
1
√
f
5
f shows the load alternation per second (Hz = 1/s)
S
z
= Start-up factor/impact frequency
S/h
0
– 100 101 – 200 201 – 400 401 – 800 801 – 1000
S
z
1
1.2
1.4
1.6
1.8
S
δ
= Safety factor for temperature *
T
-30 °C / +30 °C
+60 °C
+90 °C
+110 °C
S
δ
1
1.5
2
2.5
* Please take the max. permitted temperatures
of the individual elastomeric element hardnesses
as stated in Table 13 on page 14 into account.
S
A
or S
L
= Impact factor
Impacts
S
A
or S
L
Light impacts
1.2
Medium impacts
1.6
Heavy impacts
2.0
Terms
S
δ
grey: Elastomeric element 72 Sh D
green: elastomeric element 64 Sh D
red: elastomeric element 98 Sh A
yellow: elastomeric element 92 Sh A
blue: elastomeric element 80 Sh A