Singer 20U-105C User Manual

4
2.2
Machine
Specification
Table 1 – Machine Specification
20U-105 / 105C
For sewing
Stitch type
Max. speed[1] 2,500 rpm
Max. stitch bight 9.0 mm
Max. stitch length
Needle bar stroke
Presser bar lift (manual)
Presser bar lift (knee lifter)
Needle catalog (needle system)
Oil
Cat. 1910-05 (135x9)
Singer Oil
3.0 mm
34.8 mm
6.35 mm
9.0 mm
Singer model
Light to medium
Plain zigzag (Straight stitch)
20U-125 / 1
25C
2,000 rpm
12.0 m
Maximum speed will vary depending on fabric, threads and sewing condition
2.3
Motor,
Motor Pulley
and V-Belt
Specifications
1/3 HP (250W) 4-pole (low speed) clutch motor
M type v-belt
Table 2 – Machine Speed vs. Motor Pulley Diameter
2,500 -
130 105
2,000
2,000 105 85
1,800
1,800
90 75
1,500
1,500
80 65
Motor Pulley Diameter
[mm]
Machine Speed
[spm]
2.4
Relationship
between
Zigzag Bight
and Maximum
Speed
Table 3 - Relationship between Zigzag Bight and Maximum Speed.
Machine Class
Zigzag bight
Max. speed
2,500 rpm
20U-105 / 105C 20U-125 / 125C
20U-105 /105C
20U-125/
125C
50 Hz 60 Hz
1,800 rpm
2,000 rpm
2,000 rpm
5.0 ~ 12.0 mm
5.0 ~ 9.0 mm
0 ~ 5.0 mm
0 ~ 5.0 mm
Zigzag Sewing Machine
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Instruction Manual and Parts List

Singer 20U-105C Specifications

General

Brand	Singer
Model	20U-105C
Category	Sewing Machine
Language	English