Preparation; Motor Mounting - Bosch Rexroth MSK030B-0900-NN Project Planning Manual

250/279 Bosch Rexroth AG
Installation
12.3.3

Preparation

12.3.4

Motor mounting

The mounting holes and clearances correspond to the general tol‐
erance according to ISO 2768-m.
Before attaching the motor to the machine, it must be aligned so
that the center line of the motor shaft is aligned with the center
line of the connecting shaft.
Also note the information on this mounting type provided in
ter 9.3 "Design and installation positions" on page
The following procedure is recommended for foot mounting of the motors:
1. MSK133: remove the lower side air baffles to gain free access to the
mounting holes.
2. Align the motor so that the center line of the motor shaft is aligned with
the center line of the machine connecting shaft. To align the motor, use
sheet steel strips as a base.
3. Connect the motor firmly to the machine (for tightening torques, see
12-1 "Mounting screws tightening torque " on page
4. MSK133: replace the initially dismantled air baffles on the motor.
Motor attachment
Frame size
133 Foot plates (2 pieces)
Tab. 12-3: Overview foot mounting
Prepare the motor mounting as follows:
1. Procure tools, auxiliary materials, measuring and testing equipment.
2. Check all components for visible damage. Damaged components must
not be mounted.
3. Make sure that all system dimensions and tolerances are suitable for
motor mounting (see dimension sheet for details).
4. Check all components, mounting surfaces and threads for cleanliness.
5. Ensure that installation can be carried out in a dry, dust-free environ‐
ment.
6. Make sure that the holder for the motor flange is free of burrs.
7. Remove the protective sleeve from the motor shaft and keep the sleeve
for future use.
8. Only for motors with holding brake
Check whether the motor holding brake reaches the holding torque
specified in the data sheet. If the brake does not reach the specified tor‐
que, first loop in the holding brake at
commissioning and maintenance instructions" on page
Mount the motor and pay attention:
1. Avoid clamping or jamming the centering collar on the motor side.
2. Avoid damaging the holder on the system side.
3. Connect the motor to the machine and observe the tightening torques.
4. Check strength and accuracy of connection before proceeding.
DOK-MOTOR*-MSK********-PR12-EN-P
Synchronous Servomotors MSK
Number of mounting
type holes
4
chapter 9.10.4 "Holding brake -
chap‐
208.
tab.
249).
Surface roughness of
the screw-on surface
to the machine
Rz32
223.