Technical data

Motor Frame Size Recommended
screw size
Tightening torque
[Nm]
Minimum strength
MSK071 M10 x 30 51 8.8
MSK076 M10 x 30 51 8.8
MSK100 M12 x 40 87 8.8
MSK101 M12 x 40 87 8.8
The indicated screw lengths apply for screwing into steel.
Fig.11-1: Fastening screws
The screwed connections must be able to take up both the force
due to the weight of the motor and the forces acting during opera-
tion.
11.3.2 Preparation
Prepare the motor assembly as follows:
1. Procure tools, supplies, measuring and test equipment.
2. Check all components for visible damaged. Defective components may
not be mounted.
3. Ensure that dimensions and tolerances on the system side are suitable
for motor attachment (for details, see the dimension sheet).
4. Check whether all components, assembly surfaces and threads are clean.
5. Ensure that mounting can be done in a dry and clean environment.
6. Ensure that the holder for the motor flange is without burrs.
7. Remove the protective sleeve of the motor drive shaft and keep it for fur-
ther use.
1. Check whether the motor holding brake reaches the holding torque speci-
fied in the data sheet. If the brake fails to reach the torque specified, first
proceed as described under section 12.4, ”Holding Brake Maintenance”.
11.3.3 Assembly
● Mount the motor.
Note:
1. Avoid pinching or jamming the centering bundle on the motor side.
2. Avoid damage to the insertion fitting on the system side.
3. Check the fit and precision of the connection before you proceed.
After having mounted the motor mechanically as prescribed, establish the elec-
trical connections.
11.4 Electrical Connection – Motor Connection
11.4.1 General
It is recommended that you use ready-made Rexroth connection cables. These
cables provide a number of advantages, such as UL/CSA authorization, ex-
treme load capability and resistance as well as a design suitable for EMC.
If the optional holding brake is used
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and Controls
Rexroth IndraDyn S | Project Planning Manual
Installation