Siemens Simodrive 1PH7 - Page 29

Motor Description
1.8 Bearing design
1PH7/1-29
 Siemens AG, 2004. All rights reserved
Induction Motors, 1PH7 (APH7S) – 05.04 Edition
Table 1-12 Recommended bearing change intervals
Type
Average operating speed
1)
n
m
[RPM]
Continuous speed
n
s1
[RPM]
1PH710
n
m
 2500
2500 < n
m
< 6000
n
s1
 5500
1PH713
n
m
 2000
2000 < n
m
< 5500
n
s1
 4500
1PH716
n
m
 1500
1500 < n
m
< 4500
n
s1
 3700
1PH718
n
m
 1500
1500 < n
m
< 4000
n
s1
 3500
2)
1PH7224
n
m
 1500
1500 < n
m
< 3500
n
s1
 3100
2)
t
LW
[h] 16000 8000 8000
Table 1-13 Recommended bearing change intervals for increased maximum speeds
Type
Average operating speed
n
m
[RPM]
Continuous speed
n
s1
[RPM]
1PH710
8000  n
m
 12000 n
s1
 10000
1PH713
6000  n
m
 10000 n
s1
 8500
1PH716
5000  n
m
 8000 n
s1
 7000
1PH718
1500  n
m
 7000 n
s1
 4500
1PH7224
1500  n
m
 5500 n
s1
 3600
t
LW
[h] 8000 8000
1) A speed duty cycle with low speeds and standstill periods is assumed.
2) For increased cantilever force: SH 180: ns1
 3000 RPM
SH 225: ns1  2700 RPM