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Siemens SIMODRIVE 6SN11 Series Planning Manual page 443

Ac motors for feed and main spindle drives

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09.00
Continuous speed
The maximum permissible continuous operating speed n
bearing design and the shaft height according to the following table:
Table 1-14
Important
!
If the motor is operated at speeds between n n
with low speeds and standstill intervals is assumed, in order to guarantee that
the grease is distributed in the bearing.
1)
mechanical limiting speed (permissible for 10 min cycle with: 3 min n
2)
maximum continuous operating speed
3)
only coupling out drive permissible
 Siemens AG 2000 All rights reserved
SIMODRIVE Planning Guide Motors (PJM) – 11.00 Edition
Assignment, max. speed to the shaft height and bearing design
Shaft
Coupling drive, belt
height
drive
[mm]
[RPM]
1)
2)
n
n
max
s1
100
9000
5500
132
8000
4500
160
6500
3700
180
5000
3500
225
4500
3100
6SN1197–0AA20
1PH7 AC Main Spindle Motors
1.4 Bearing design
depends on the
s1
Belt drive with increa-
Increased maximum
sed cantilever force
[RPM]
1)
2)
n
n
n
max
s1
max
12000
10000
8000
5000
3000
7000
4500
2700
5500
and n
, a speed duty cycle
s1
max
, 6 min 2/3 n
, 1 min standstill)
max
max
speed
[RPM]
1)
2)
n
s1
10000
8500
7000
3)
3)
4500
3)
3)
3600
1PH7
1PH7/1-15

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