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4
Mechanical installation
Coupling of AM adapter
Assembly and Operating Instructions – Explosion-Proof Gear Units
77
Permitted loads for gear unit series SPIROPLAN
®
W37 – W47
Adapter type
x
1)
F
R
1)
N
IEC
NEMA
mm
IEC adapter
NEMA adapter
AM63/71
AM56
115
140
120
AM80/90
AM143/145
151
270
255
1) If the center of gravity distance x increases, the maximum permitted weight F
R_max
of the attached motor must be reduced linearly. If this center of gravity distance x
is reduced, it is not permitted to increase the maximum permitted weight F
R_max
.
4.14.2
AM adapter with AM../RS backstop
Check the direction of rotation of the drive prior to mounting or startup. In case of a
wrong direction of rotation, contact SEW-EURODRIVE.
The backstop is maintenance-free in operation. Backstops have a minimum lift-off
speed depending on the size (see following table).
NOTICE
If the speed is below the minimum lift-off speed of the drive, the backstop is subject
to wear and heats up.
Possible damage to property.
•
In nominal operation the lift-off speed of the drive must not drop below the spe-
cified minimum.
•
During startup or braking, the lift-off speed of the drive may drop below the min-
imum levels.
Type
Maximum locking torque of
the backstop
Minimum lift-off speed
Nm
min
-1
AM80/90/RS
AM143/145/RS
65
820
AM100/112/RS
AM182/184/RS
425
620
AM132/RS
AM213/215/RS
850
530
AM160/180/RS
AM254/286/RS
1450
480
AM200/225/RS
AM324-365/RS
1950
450
AM250/280/RS
1950
450
24804134/EN – 05/2018