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Service and maintenance
10.8 Servicing the brake
of braking and the frequency of operation. If several of the listed causes of wear to the
friction lining occur at the same time in a single application, the influencing factors should
be added together when calculating the wear.
The following table describes the different causes of wear and their effects on the spring-
operated brake components.
Note
For encapsulated brakes with condensation drain hole, when mounting the dust protection ring,
carefully observe the correct position of the condensation drain hole.
Table 10-5
Component
Friction lining
Armature disk and
friction surface
Brake rotor gear
teeth
Support of the ar‐
mature disk
Springs
10.8.2
Maintenance intervals for the brake
For safe and disturbance-free operation, check and maintain spring-operated brakes regular
intervals.
96
Causes of spring-operated brake wear
Cause
Operational braking
Emergency stops
Wear caused by overlap
when starting and stopping
the drive
Active braking by the drive
motor supported by the
brake (quick stop)
Low speed and motor moun‐
ted 'at the top'
Wear when starting for mo‐
tor a mounting position with
vertical shaft, even when
the brake is released
Friction of the brake lining
Relative movement and
shock between the rotor and
hub
Load change and impacts in
the backlash between the ar‐
mature disk, sleeve screws
and guide pins
Axial load cycle and shear
stresses in the springs due to
radial backlash in the arma‐
ture disk
Effect
Friction lining wear
Run-in of armature disk
and friction surface
Wear of the teeth (pri‐
marily on the rotor side)
Deflection of armature
disk, sleeve screws and
pins
Decrease in the spring
force or fatigue failure
Motors for mounting onto SIMOGEAR gearboxes
Operating Instructions, 01/2024, A5E53220841A/RS-AA
Influencing factor
Work as a result of the
frictional force
Number of start / stop
cycles
Work as a result of the
frictional force
Number of start / stop
cycles
Number of start / stop
cycles, strength of brak‐
ing torque
Number of switching op‐
erations of the brake
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