Siemens SIMODRIVE 6SN11 Series Planning Manual page 550

1PH7 AC Main Spindle Motors
3.2 Cantilever/axial force diagrams
Axial force
shaft height 160
F [N]
QAS
4000
3000
2000
1000
1
1PH7
Permissible axial force at the shaft end
DE bearing: 6212
NDE bearing: 6212
Fig. 3-77
1PH7/3-122
Axial force at the shaft end at increased max. speed.
n 1000 RPM
4000
6000
8000
1.5 2
F
C
L = 8000 h
h
F = Bearing alignment force
C
Axial force diagram at the shaft end, shaft height 160 (increased max. speed)
2.5 3
= 400 N
 Siemens AG 2000 All rights reserved
SIMODRIVE Planning Guide Motors (PJM) – 11.00 Edition
11.00
09.00
4.5 @ 10
3.5 4
F [N]
A
6SN1197–0AA20
3
J