Kendrion Binder Magnete GmbH
Operating Instructions 76 ..P..B00
Last updated: 30 Dec. 2009
Page 7
3. Installation
3.1 Mechanical
installation
The spring-applied single-disc brake must be slipped with its hub (17) onto a
shaft (tolerance h6) provided with a feather key to DIN 6885, sheet 1. As the
hub (17) is firmly fitted to the brake, it need not be axially secured on the
machine shaft (e.g. motor shaft). Make sure that no radial forces act on the
deep groove ball bearing (18) during installation and operation (vertical
installation, if possible) and that the hub (17) is not exposed to any
permanent axial force (e.g. exerted by shaft shoulder) after installation has
been completed. The spring-applied brake is centred by means of the deep
groove ball bearing (18) of the hub (17). Fixing screws (10) are provided to
allow the spring-applied single-disc brake to be screwed to the fixing surface
(8) of the machine (e.g. motor). Before starting installation work, the O-ring
(16) must be inserted into the corresponding groove provided in the solenoid
housing (1.1). Make sure the fixing screws (10) are tightened evenly in
diametrically opposite sequence and that the specified tightening torques
(see Table 7/1) are not exceeded.
Note!
Make sure that the deep groove ball bearing (18) is not distorted during installation of the spring-applied
single-disc brake and that the shaft rotates easily when the brake is released. Check that no grinding sounds
can be heard.
Size
10
11
13
16
19
24
L [mm]
70
70
90
90
100
100
M
A
[Nm]
9.7
9.7
24
24
45
45
Table 7/1: Hub dimensions (17); tightening torques of fixing screws (10)
Check that the fixing surface (8) meets the following requirements before installing the brake:
•
Axial runout relative to the shaft end to DIN 42955-N (measuring radius = reference circle)
•
Material: steel, cast iron, aluminium – with excellent thermal conductivity
•
Absence of oil and grease
Radial runout of the shaft end relative to the fixing surface (8) to DIN 42955-N
Attention!
The specified axial runout of the fixing surface (8) relative to the shaft end and the specified radial runout of
the shaft end relative to the fixing surface (8) must be strictly observed in order not to reduce the reliability
and service life of the spring-applied single-disc brake. Before installing the brake, the shaft end must be
slightly brushed with a high temperature grease (e.g. Copaslip). This is essential to allow the brake to be
easily removed if maintenance work needs to be carried out at a later date.
Attention!
The M
A
tightening torque specified for the fixing screws (10) must be strictly observed. The screws (10) must
be tightened evenly in diametrically opposite sequence.
