Bearing size MS2N
Type Bearing size DE Bearing size NDE Floating bearing Fixed bearing
MS2N03 6001 6000 DE NDE
MS2N04 6003 6001 DE NDE
MS2N05 6204 6303 DE NDE
MS2N06 6206 6303 DE NDE
MS2N07 6207 6205 DE NDE
MS2N10 6308 6306 DE NDE
Tab. 4-11: MS2N 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 calculated
grease service life was used for the mentioned specifications, taking into consid-
eration the following boundary conditions.
● Horizontal installation
● Low vibration and impact loads
● No oscillating bearing movement < 180°
● Mean speed according to Table 4-12:
Type Mean speed
MS2N03, -04, -05, -06 ≤ 3500 1/min
MS2N07 ≤ 3000 1/min
MS2N10 ≤ 2000 1/min
Tab. 4-12: Mean speed - basis of calculated grease service life
The following standard values apply under the specified preconditions for the
60K and 100 K operation modes:
L
10h
in case of operation after S1-60K
L
10h
= 30.000 h, in case of utilization after S1-60K and max. load factor 95% dur-
ing the runtime.
MS2N Synchronous Motors
Bosch Rexroth AG
About this product
DOK-MOTOR*-MS2N*******-IT03-EN-P
29/95
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