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ML3 Self-Cooled Linear Motors
Installation height with cover plate
(option)
Frame size
ML3x03
ML3x06
ML3x11
Tab. 6-1:
Installation height ML3 motors without cover plate
The plate dimensions are to be selected according to the following table:
Frame size
Thickness
03
06
0.15 ± 0.02 mm
11
Tab. 6-2:
ML3 Motors installation height with cover plate
CAUTION
●
If the installation height of the motor is not adjusted when a cover plate
is used (increased), motor components of the ML3 may be damaged or
destroyed.
●
The cover plate must be earthed according to the state of the art. The
ML3S must not be used for this.
Checking the minimum air gap between primary and secondary part after the
assembly is recommended
For this reason, insert a test strip made of non-magnetic material (copper,
plastics, etc.) with a thickness of
●
0.4 ... 0.5 mm
into the air gap between primary and secondary part. The test strip must be
versatile in the air gap on every position of the total length via the complete
surface of the primary part.
This measure ensures the minimum necessary air gap between the motor
components. This check can detect faulty assembly in time ( e.g. dirt under
the assembly surfaces, faulty installation dimensions, insufficient machine ri‐
gidity etc.).
If the installation height and thus the height of the air gap is ex‐
ceeded above the tolerances, this leads to an exponential deterio‐
ration of the linear motor specifications. A too small air gap can
lead to damage or destruction of the motor.
Installation height "X"
40 mm ± 0.1 mm
40 mm ± 0.1 mm
45 mm ± 0.1 mm
Cover plate
Width
50 mm (49.8 - 50.5 mm)
80 mm (79.8 - 80.5 mm)
130 mm (129.8 - 130.5 mm)
Damage or destruction of motor components
due to use of cover plates!
R911389762_Edition 04 Bosch Rexroth AG
17/57
Assembly
Installation height
"X" with cover plate
40.17 ± 0.1 mm
45.17 ± 0.1 mm
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