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 17 of 29
Installation of the Shrink Disk Hubs (Item 1 / Fig. 10)
The shrink disk hub force is transmitted via
frictional locking. The contact surfaces
between the shrink disk and the hub are
greased manufacturer-side.
The hub bores and the shaft ends must be
completely grease-free during installation.
Greasy or oily bores or shafts do not
transmit the maximum coupling torque.
Please make sure that the key sits securely
for designs with keyway.
Please see guideline under ATEX!
The hub and the shrink disk must be
completely relaxed; if necessary, loosen
the screws by several thread turns.
1) Mount the coupling hubs (1) onto both shaft ends using a
suitable device and bring them into the correct position.
2) Tighten the tensioning screws (1.2) lightly up to contact.
3) Tighten the tensioning screws (1.2) stepwise (in 3 to max. 6
tightening sequences) and cross-wise evenly using a torque
wrench to the required torque acc. Table 2, 3 or 4 (dependent
on Type).
Fig. 10
De-installation of the Shrink Disk Hubs
1) Loosen all tensioning screws (1.2) by several thread turns.
2) Screw out the tensioning screws (1.2) located next to the
tapped extracting holes and screw them into the tapped
extracting holes up to their limits.
3) Tighten the tensioning screws (1.2) evenly and step-wise so
that the shrink disk (1.1) is loosened from the shrink disk hub
(1).
Installation of the Coupling Hubs with Keyway
(Item 2 / Fig. 11)
Please make sure that the key sits securely
in the shaft.
Please see guideline under ATEX!
The key must lie over the entire length of
the hub.
For calculation, please take the yield point
as R
p
0.2 for aluminum 200 N/mm
2
and for
steel 350 N/mm
2
.
1) Mount the coupling hubs (2) onto both shaft ends using a
suitable device and bring them into the correct position.
2) Secure the hubs (2) axially. Axial securement takes place via
a set screw (adjusting screw Item 2.1, see Fig. 11 and
installation example Fig. 5 / page 15).
Fig. 11