Siemens SIMODRIVE 6SN11 Series Planning Manual page 548

1PH7 AC Main Spindle Motors
3.2 Cantilever/axial force diagrams
Axial force
shaft height 100
F [N]
QAS
3000
2000
1000
0.5
Permissible axial force at the shaft end
DE bearing: 6208
NDE bearing: 6208
1PH7
Fig. 3-75
1PH7/3-120
Axial force at the shaft end at increased max. speed.
n 1000 RPM
5000
9000
12000
1
F
C
L = 8000 h
h
F = Bearing alignment force
C
Axial force diagram at the shaft end, shaft height 100 (increased max. speed)
1.5
= 400 N
 Siemens AG 2000 All rights reserved
SIMODRIVE Planning Guide Motors (PJM) – 11.00 Edition
11.00
09.00
2.5 @ 10
3
2
F [N]
A
6SN1197–0AA20