2.3 Cantilever and axial force diagrams
1PH7/2-102
Siemens AG, 2004. All rights reserved
Induction Motors, 1PH7 (APH7S) – 05.04 Edition
SH 132, permissible cantilever forces for increased max. speed
12 34 5678910 10
3
n [RPM]
L
h1
8000 h
3000
2250
2000
1750
1500
1250
1000
F
QAS
[N]
Bearings, DE: 6210
Bearings, NDE: 6210
Estimated bearing lifetime under different operating conditions (F
QAS
; n)
q = Duration [%] under
constant conditions
L
h
tot
=
100
q
1
L
h1
+
q
2
L
h2
+
q
3
L
h3
F
1QAS
F
QAS
F
2QAS
F
1QAS
= 0.9 F
QAS
F
2QAS
= 1.1 F
QAS
x = 55 mm
2500
2650
x
Fig. 2-63 Cantilever force diagram, shaft height 132 for increased max. speed
Technical Data and Characteristics