Siemens SIMODRIVE 6SN11 Series Planning Manual page 537

11.00
09.00
Cantilever force
Permisible cantilever forces for increased max. speed.
shaft height 160
F [N]
QAS
3800
3500
3250
3000
2750
2500
2250
2000
1 2
DE bearing: 6212
NDE bearing: 6212
Estimated lifetime for other operating conditions (F
100
L =
htot
q q
1 2
+
L L
h1 h2
Fig. 3-65 Cantilever force diagram shaft height 160 at increased max. speed
 Siemens AG 2000 All rights reserved
SIMODRIVE Planning Guide Motors (PJM) – 11.00 Edition
3 4 5
F F F
1QAS QAS 2QAS
x
QAS
q
3
+
L
h3
6SN1197–0AA20
1PH7 AC Main Spindle Motors
3.2 Cantilever/axial force diagrams
8 @ 10
6 7
F = 0.9 F
1QAS QAS
F = 1.1 F
2QAS QAS
x = 55 mm
; n)
q = Time for which this is effective
[%] under constant conditions
L 8000 h
h1
3
n [RPM]
1PH7
1PH7/3-109