User Manual Installation, Assembly and Commissioning
EM1 Series AC Servo Motors EM1-01-0-EN-2110-MA Page 45 of 72
8.2.1.4 Belt
1. Choose a belt that is suitable for the servo motor is allowable radial load and output
power.
2. When the motor accelerates or decelerates, the reaction force to the
acceleration/deceleration will increase the initial belt tension. Thus, when choosing a
belt, please consider the load of motion and the belt’s safety coefficient.
3. When installing the belt, suitably adjust the belt tension force and consider the
allowable radial load stated in the motor operating instruction. Please reference to
the following information.
Motor Shaft Allowable Axial and Radial Force
F
a
(Allowable axial force):
Frame size Allowable axial force
40 mm 54 N
60 mm 74 N
80 mm 147 N
130 mm 343 N
F
r
(Allowable radial force):
Frame size Allowable radial force(X) [Force unit: Newton] / [X unit: mm]
x=0 x=5 x=10 x=15 x=20 x=25 x=30 x=35 x=40 x=45 x=50
40 mm 68 74 80 88 98 - - - - - -
60 mm 190 200 215 230 245 270 - - - - -
80 mm 340 350 365 380 395 415 435 - - - -
130 mm 640 660 685 715 745 775 810 850 890 940 990
Belt adjustment: measure and adjust
belt tension force multiple times in
one circle.
F
a
(Axial Force)
F
r
(Radial Force)
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