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Bosch Rexroth AG
Appendix
12.2
Dimension sheets
12.2.1
Air gap
12.2.2
Specifications
Dimensions and - tolerances
Frame size
Installation height B
03
40 mm ± 0.1 mm
06
40 mm ± 0.1 mm
11
45 mm ± 0.1 mm
To ensure a safe operation and constant force over the total traversing range,
an air gap between primary and secondary part must exist. Therefore, the
single parts of the motor have the corresponding tolerances. The distance of
the mounting surface, the parallelism and the symmetry of the primary and
secondary part of the linear motor in the machine must be within a certain tol‐
erance above the entire travel path. Any deformations that result from weight,
attractive forces and process forces must be taken into account.
The specified installation dimensions with the corresponding toler‐
ances must be kept by the user over the complete travel path.
Due to an undersized air gap, the primary part can have contact
with the secondary part and can therewith damage or destroy mo‐
tor components.
For the installation of the motors into the machine structure, Bosch Rexroth
specifies a defined installation height with tolerances. Thus, the specified size
and tolerances of the air gap are maintained inevitably – even if individual
motor components are replaced.
Winding (center)C*
see dimension sheet
*)
For tolerance details refer to the dimension sheet
Tab. 12-9:
Installation dimensions and tolerances (example frame size 06)
The specified installation dimensions with the corresponding toler‐
ances must be kept by the user over the complete travel path.
DOK-MOTOR*-ML3********-IT01-EN-P
ML3 Self-Cooled Linear Motors
Width
Primary part A1*
51 mm
77 mm
125.5 mm
Sekundary partA2*
50 mm
80 mm
130 mm
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