Bosch rexroth MCL, Project Planning Manual

Page: 169 / 206

Air gap
Motor damage due to insufficient air gap be‐
tween primary and secondary part!
NOTICE
After assembly, check the free movement of the motor components to each
other immediately. Therefore, move the versatile motor components by hand
over the complete travel length. The versatile motor components must be
freely movable at each position over the total travel length - without any con‐
tact to fixed motor components. This check can detect faulty assembly in time
(e.g. dirt under the assembly surfaces, faulty installation dimensions, insuffi‐
cient machine rigidity etc.).
13.5 Fastening secondary part
Observe absolute cleanness during assembly. No dirt should exist on the
screw-on surface and stop faces and no dirt or other parts (e.g. screws,
washers, etc.) should reach the area of magnetic pull on the secondary part.
Any kind of foreign bodies in this area could damage the primary or secon‐
dary part at the first traverse of the motor components.
● For safety reasons, the user or machine manufacturer is
NOT allowed to dismount the secondary part in its separate
parts!
● To fasten the secondary parts, it is only allowed to use new,
unused screws.
● After aligning, tighten all screws with the specified tightening
torque (see Chapter 13.4 ). Additionally secure the screw
connection with Loctite 243.
● After assembly, check if any foreign bodies exist in the sec‐
ondary part.
The secondary parts can be connected with the machine via two different
ways.
① Fastening type variant 1
② Fastening type variant 2
Fig. 13-3: Secondary part fastening types
The screw-on surfaces and stop faces must be cleaned and be free of grease
before the secondary parts can be screwed on the machine construction. For
suitable screw selection and its tightening torques refer to the following table.
MCL Ironless Linear Motors 161/197
Assembly
R911330592_Edition 06 Bosch Rexroth AG