Output Shaft; Plain Shaft; Output Shaft With Keyway; Output Shaft With Shaft Sealing Ring - Bosch Rexroth MSK030B-0900-NN Project Planning Manual

212/279 Bosch Rexroth AG
Operating conditions and application notes
9.6

Output shaft

9.6.1

Plain shaft

9.6.2

Output shaft with keyway

Balancing with full key
9.6.3

Output shaft with shaft sealing ring

The recommended standard version for MSK motors offers a force-fit, back‐
lash-free shaft-hub connection with very quiet running. Use clamping sets,
clamping sleeves or tensioning elements to couple the machine elements to
be driven.
The optional key according to DIN 6885, Sheet 1, Edition 08-1968, allows
form-locking transmission of torques with constant direction and low require‐
ments for the shaft-hub connection.
①
②
③
④
① Key
② Keyway
① Motor shaft
① Centering hole
Fig. 9-4: Output shaft with keyway
In addition, the machine elements to be driven must be secured axially via
the frontal centering hole.
NOTICE
Shaft damage! In case of intense reversing operation, the seat of the fitting
spring may deflect. Increasing deformations can lead to a break of shaft.
Preferably, use plain output shafts.
MSK motors are balanced with full key. The machine element to be driven
must therefore be balanced without key.
MSK motors are designed with radial shaft sealing rings according to DIN
3760 - version A.
DOK-MOTOR*-MSK********-PR12-EN-P
Synchronous Servomotors MSK
MR000014
Damage to property due to reversing mode!