Fig. 4-7:
Measuring system of alignment
The coaxiality and the alignment are measured in vertical motor position to
exclude the influence of gravitational forces.
4.2.12
Vibration behavior
The oscillation behavior corresponds to oscillating quantity level A according
to DIN EN 60034-14 up to the rated speed.
4.2.13
Bearing
The motors are equipped with a deep-groove ball bearing with high-tempera‐
ture grease for prelubrication.
Bearing size MS2E
Type
Bearing size DE
Bearing
size
NDE
Floating bearing
Fixed bearing
MS2E03
6001
6000
DE
NDE
MS2E04
6003
6001
DE
NDE
MS2E05
6204
6303
DE
NDE
MS2E06
6206
6303
DE
NDE
MS2E07
6207
6205
DE
NDE
MS2E10
6308
6306
DE
NDE
Tab. 4-10:
MS2E bearing size
Bearing service life
The bearing lifetime is an important criterion for the availability of motors. The
operating conditions influence the bearing service life L
10h
considerably.
The following boundary conditions apply to the bearing service life L
10h
:
●
Operation within the specified permissible loads (radial and axial force)
●
Operation within the permissible ambient conditions (temperature range
0 … 40 °C, vibration, ... )
●
Operation within the thermally permissible operating characteristic curve
The bearing lifetime also depends on the service life of the grease. A calcula‐
ted grease service life was used for the mentioned specifications, taking into
consideration the following boundary conditions.
●
Horizontal installation
●
Low vibration and impact loads
●
No oscillating bearing movement < 180°
●
Mean speed according to table :
MS2E Synchronous Servomotors acc. to ATEX Directive
2014/34/EU
21/65
About this product
R911387136_Edition 02 Bosch Rexroth AG
