Singer 251-2 - Page 5

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TYPE
OF
MATERIAL
MAXIMUM
SPEEDt
(R.P.M.)
MAXIMUM
STITCH
LENGTH
NEEDLE
BAR
STROKE
(inches)
I
Ii
PRESSER
BAR
LIFT
(inch)
I
NEEDLi::S:
CLASS
AND
VARIETY
SIZES
RECOM-
MENDED
4
SPECIAL
CHARACTERISTICS
OF
MACHINES
OF
CLASS
251
MACHINES
(CLASS
AND
VARIETY)
251-1
251-2
251-3
Medium-Heavy
Heavy
to
Light-Weight
to
Light-Weight
Light-Weight
5000
5000
4300
7
5-1
/2
5-1
2
per
inch
per
inch
per
inch
1-9/64
1-13,
64
1-7,'l
6
I
I
I
I
9/32
5/16
3/8
88
X 9 16 X
257
16
X
257
I
I
8, 9, 10, 11,
12,
8, 9, 10, 11, 12, 13,
8, 9, 10,
11, 12,
13, 14,
16,
14,
16, 17,
18,
19,
I
13, 14,
16,
17,
17,
18, 19,
20,
21, 22, 23
and
18,19,20,21,
20,
21
and
22
24
22,
23
and
24
I
I
I
tDependent
upon
nature
of
material
and
ability
of
operator.
251-3 (HEAVY)
Extra-Heavy
to
Light-Weight
4300
5-1
/2
per
inch
1-7/16
7/16
16 X 261
I
16,
18, 19,
21,
i
22
and
23
I
I
I
I