Machine Specification; Motor, Motor Pulley And V-Belt Specifications - Singer 191D-20 Instruction Manual And Parts List

2.2
Machine
Specification
Table 1 – Machine Specification
Singer Application
Model
191D-20
Light to
medium
191D-20C
191D-30
Medium to
heavy
191D-30C
191D-70
Heavy
191D-70C
2.3
Motor, Motor
Pulley and V-Belt
Specifications
Maximum Stitch Height of
Speed Length Presser Foot
[spm] [mm] by hand / by
knee [mm]
5,000 5.0 5.5/13.0
4,500 5.0 5.5/13.0
3,000 7.0 5.5/13.0
• ½ HP (400W) 2-pole (high speed) clutch motor
• M type v-belt
Table 2 – Machine Speed vs. Motor Pulley Diameter
Machine Speed [spm]
191C-20 / 20C
5,000
4,500
-
-
-
-
Needle Hook
Bar Type
Stroke
[mm]
30.7
Regular
35.0
35.0 Large
191C-30 / 30C 191C-70 / 70C
- -
4,500 -
4,000 -
3,500 -
- 3,000
- 2,500
High Speed Straight Lockstitch Sewing Machine
Hook Needle Cat. Lubrication
Origin
Standard
1955-01 #14
Koban/
Hirose
Standard
1955-01 #18
Koban/
Lubrication
Hirose
Standard
1955-01 #21
Koban/
Hirose
Motor Pulley Diameter [mm]
50 Hz
125
115
100
90
75
65
| Instruction Manual and Parts List
Lubrication
Oil
Fully
Singer "C"
Automatic
type oil
60 Hz
105
95
85
75
65
55
4