35
TEcHNIcaL DaTa
The endurance strength of the shaft and the bearing life (30.000 h) are decisive for the
permissible radial forces
F
R
. Taking the endurance strength into consideration
F
R
is
not permitted to be exceeded even during dynamic processes (acceleration, braking).
F
A
Axial force
F
A
F
R
x
l
F
R
Radial force
x
Length of the rotor shaft up to the center of the radial force
l
Length of the rotor shaft
Figure 10:
Axial and radial forces
5.2 Shaft end
Motors of the SMH series have cylindrical shaft ends according to DIN 748. Use suitable
devices for mounting and pulling off driving elements such as gears, pulleys, couplings,
etc. Support the device at the D(AS) shaft end.
Use suitable tool!
Motor and motor shaft must be protected against shocks and impacts !
D1
L1
Motor type
Shaft end
D1
L1 / mm
0xSMH
Ø 8 h7
22.5
AxSMH
Ø 9 k6
20
BxSMH
Ø 14 k6
30
CxSMH
Ø 19 k6
40
DxSMH
Ø 24 k6
50
ExSMH
Ø 32 k6
58
FxSMH
Ø 38 k6
80
Figure 11:
Shaft end
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