SIEMENS
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Siemens D 83.1 · 2016
1
Introduction
General technical specifications
Bearings
■
Overview
(continued)
Admissible forces on shaft extension
The following values are based on a calculated service life of
L
10h
= 20000 h. They are applicable for horizontal and vertical
shafts.
The cantilever forces specified in the tables must not be
exceeded to ensure compliance with the maximum admissible
shaft flexing in the ignition gap. Where values are not specified
in the tables, an increase in admissible force cannot be
achieved by using a roller bearing in place of a normal bearing,
due to flexing of the shaft.
F
Q
= Cantilever force in N
F
A
= Axial force in N
x
= Distance between point of application of force and
shoulder of shaft in mm
l
= Length of shaft extension in mm
Admissible cantilever force
G_D083_EN_00033
x
max
x
0
x
F
Q
-
F
A
+
F
A
Admissible cantilever force
F
Q
Valid are: x
0
values for x = 0, x
0.5
values for x = 0.5 · l and x
max
values for x = l (l = shaft extension)
Frame
size
at x
0
at x
0.5
at x
max
at speed
at speed
at speed
3000 rpm
1500 rpm
1000 rpm
750 rpm
3000 rpm
1500 rpm
1000 rpm
750 rpm
3000 rpm
1500 rpm
1000 rpm
750 rpm
kN
kN
kN
kN
kN
kN
kN
kN
kN
kN
kN
kN
LOHER CHEMSTAR 1PS0 and 1PS1 motors
160
9.74
8.71
7.10
7.10
5.21
4.66
–
–
3.31
–
–
–
180
11.93
14.66
12.66
12.66
6.85
6.85
6.85
6.85
4.68
4.68
4.68
4.68
200
13.23
15.59
15.59
15.59
8.63
8.63
8.63
8.63
5.96
5.96
5.96
5.96
225
16.17
18.85
18.85
18.85
10.67
9.53
9.53
9.53
7.42
6.37
6.37
6.37
250
17.52
20.41
20.41
20.41
11.04
11.04
11.04
11.04
7.57
7.57
7.57
7.57
280
17.91
27.38
28.72
28.72
10.69
15.96
15.96
15.96
7.40
11.05
11.05
11.05
315 S/M
22.14
23.49
26.38
26.38
15.86
21.56
22.71
22.71
9.63
14.07
14.07
14.07
315 L
22.08
23.06
26.02
26.02
15.86
21.72
23.72
23.72
9.63
14.65
14.65
14.65
355 LB
Values on request
Values on request
Values on request
LOHER VARIO 1PS0 and 1PS1 motors
355 ... 500
Values on request
Values on request
Values on request
SIMOTICS XP 1MD5 and LOHER CHEMSTAR 1PS5 motors
160
–
–
–
–
–
–
–
–
–
–
–
–
180
5.65
5.65
5.69
5.69
–
–
–
–
–
–
–
–
200
9.38
12.57
12.00
12.00
5.19
6.98
6.65
6.65
–
4.80
4.59
4.59
225
15.83
16.97
16.97
16.97
8.95
8.57
8.57
8.57
6.24
5.74
5.74
5.74
250
10.89
18.37
18.37
18.37
5.95
9.94
9.94
9.94
–
6.81
6.81
6.81
280
10.95
25.85
24.08
24.08
6.08
14.36
13.38
13.38
–
9.94
9.26
9.26
315 S/M
9.49
19.90
18.94
18.94
5.30
9.96
9.48
9.48
–
6.63
–
–
315 L
6.35
23.06
23.32
23.32
3.55
12.19
11.67
11.67
–
8.12
7.77
7.77
LOHER VARIO
1PS4 and 1PS5 motors
355 ... 500
Values on request
Values on request
Values on request
© Siemens AG 2016