3. Relation between the motor pulley and the belt (only for the sewing machine
provided with a clutch motor)
1)
Use a clutch motor with output power of 400 W or more.
2)
The relation of the motor pulley, belt length and number of revolutions of the machine is as shown in the following
table.
Outside diameter of
motor pulley
110 mm
105 mm
100 mm
95 mm
90 mm
85 mm
80 mm
75 mm
70 mm
* The effective diameter of the motor pulley is obtained by subtracting 5 mm from the outside diameter.
* The direction of rotation of the motor is counterclockwise as observed from the pulley side. Take care not to allow
the motor to rotate in the reverse direction.
JUKI part No. of motor
pulley
MTKP0105000
MTKP0100000
MTKP0095000
MTKP0090000
MTKP0085000
MTKP0080000
MTKP0075000
MTKP0070000
MTKP0065000
Use the M-type V-belt.
Number of
Belt length
revolutions (sti/min)
50Hz
60Hz
4420
4210
50"
4000
3790
3580
4320
3370
4070
3160
3810
49"
2950
3560
2740
3300
− 4 −
JUKI part No. of
(inch)
V-belt
MTJVM005000
MTJVM004900