JUKI MF-7700 Series - 4 MOTOR PULLEY and BELT MF-7700 Series

–4 –
50Hz 60Hz
Pulley size (mm) Belt size (inch) Pulley size (mm) Belt size (inch)
4,500 ø 100 M-35 ø 85 M-35
4,800 ø 105 M-36 ø 90 M-35
5,000 ø 115 M-36 ø 95 M-35
5,500 ø 125 M-37 ø 105 M-36
5,800 ø 130 M-37 ø 110 M-36
6,000 ø 135 M-37 ø 115 M-37
6,200 ø 140 M-38 ø 120 M-38
6,500 ø 150 M-39 ø 125 M-38
4. MOTOR PULLEY AND BELT MF-7700 Series
1 . The table shows the numbers when a 3-phase 2-pole 400 W clutch motor (1 / 2 HP) is used.
2 . The commercially-available motor pulley near to the counted value is designated since the outside diameter of the
commercially-available motor pulley counts by 5 mm.
3 . When you use a new sewing machine, use the machine at a speed of 5,000 rpm or less for the first 200 hours
(approximately one month). A good result can be obtained in terms of the durability.
(Caution) 1. Use a motor pulley which is adaptable to this sewing machine.
2. The sewing speed exceeds the max. sewing speed of this sewing machine and machine trouble will be
caused unless a motor pulley which is adaptable to this sewing machine is used.
Sewing
speed(rpm)