Bosch rexroth MBT, Manual

Page: 336 / 422

● The screw length required depends on the machine con‐
struction.
● The screwed connections have to be able to take up both
the force due to the weight of the motor and the forces act‐
ing during operation.
● All screwed connections have to be provided with a liquid
screwlock. See also chap. 12.3 .
Mounting the rotor Ensure cleanliness during all working steps!
1.
Connect the rotor and the spacer sleeve to a clamping plate. After fas‐
tening, it has to be ensured that both centering diameters of the rotor
hole (see Fig. 12-48 ) are guided on the spacer sleeve.
Connect the rotor to a mounting tool for inserting the rotor into the stator
(for example see Fig. 12-57 ).
2. Using the mounting tool, push the rotor over the shaft end to its end po‐
sition. We recommend to provide a friction bearing (bronze bushing,
etc.) on one side of the shaft end, which allows axial length compensa‐
tion due to the slightly increased heating of the rotor as compared with
the shaft during motor operation.
Strong magnetic forces may cause in‐
jury/damage!
WARNING
The permanent magnets on the rotor and the resulting magnetic forces
cause the rotor ...
⇒ is promptly pulled into the stator (axial force). use appropriate mount‐
ing tools to prevent uncontrolled movements of the rotor during assem‐
bly
⇒ is attracted by the stator hole (radial force). Refer to the information
on occurring radial forces in tab. 12-1 "Magnetic attractive forces during
mounting" on page 312 and table 12-2 .
3. Clamp the spacer sleeve onto the shaft end using a clamping ring. The
clamping ring causes safe power transmission of the motor to the shaft
to be driven.
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Installation
MBT High Synchronous Torque Motors
Bosch Rexroth AG R911298798_Edition 08