Motor, motor pulley and v-belt specifications – SINGER 112 User Manual
Page 9
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Zigzag Sewing Machine
instruction Manual and Parts List
2.3.
Motor, Motor Pulley and V-Belt Specifications
•
V i
HP (400W) 4-pole (medium speed) clutch motor
•
M type v-belt
Table 2 - Machine Speed vs. Motor Pulley Diameter
Machine Speed [spm]
Motor Puliey Diameter [mm]
20U-109/109C
j
20U-112/112C
20U-309
SO Hz
60 Hz
2,500 1
2,500
130
105
2,000
2,000
2,000
105
85
1,800
1,800
1,800
90
75
1,500
.1,500
1,500
SO
65
2.4.
Relationship between Zigzag Bight and Maximum Speed
Table 3 ” Relationship between zigzag bight and maximum speed
Machine Class
20U-109/ 109C/309
20U-112/112C
Zigzag bight
0"'5.0 mm
5.0 ~ 9.0 mm
0 ~ 5.0 mm
5.0 ~ 12.0 mm
Max. Speed
2,500 rpm
2,000 rpm
2,000 rpm
1,800 rpm
-8'