Sewing Machine Needles Sewing Machine Needle Facts:
Sewing Machine Needle Selection Chart
Needle Thread Breakage/Fraying
▲ Every single Groz-Beckert sewing machine needle is string polished with an eye matching thread and polishing compound to achieve a smooth thread protective surface. ▲ Many other needle system styles are available. Please consult with your representative for precise sewing machine to needle compatibility.
Causes: ▲ There are several causes of thread breakage or fraying. Usually it is the result of some interference with the needle thread. ▲ Any sharp edge along the path the needle thread travels can cause this failure. This includes the thread guides, needle, needle hole plate, presser foot, feed dog and looper. These areas must be free of burrs and sharp edges. ▲ Too tight tension can also cause thread breakage or fraying. Thread breakage could result from excessive needle heat.
Needle Recommendations: ▲ Check for correct needle size. ▲ Try a larger size needle.
Skip Stitches Basic Reason: Inability to obtain proper formation of the needle thread loop or failure of the looper or hook to enter the thread loop at the proper time and place. Some Causes:
Part No.
System
Part No.
System
Adler 67 Adler 98-2 Adler 166-1 Adler 167 Pfaff 138, 238 Pfaff 145 Pfaff 545 Consew 272 Consew 206RB
134 134-5 328 134 134 134 134 134 135x17
Singer 107 Singer 111W100 Singer111W112 Singer 167 Singer 211G151 Juki LU562 Juki LH512 Juki LU651 Bernina 217-25
135x7 135x7 135x17 135x7 135x7 135x17 135x7 135x17 278WKH
▲ Timing of looper or hook is incorrect. ▲ Incorrect setting of the take up and pull off devices. ▲ Loss of thread control (too large an eye in the needle, usually resulting from needle size being too large for thread being used). ▲ Needle vibration or staggering. ▲ Incorrect hole size in throat plate. ▲ Needle being deflected by resistance of material (multi-plies of material, elastic inserts, etc.). ▲ Needle crooked or bent.
Hints: ▲ Rotate needle slightly so it throws the needle thread loop into the looper. ▲ Check machine setting and thread tension. ▲ If possible, try larger size needle
Thread - Metric Thread - Singer
Needle Breakage ▲ Too small a size needle being used to perform the seaming operation. ▲ Incorrect needle being used in machine. ▲ Machine interference - looper hitting needle, feed dog timing, too small a hole in throat plate.
B
A: B:
Chemically polished needle eye. Groz-Beckert string polished needle eye.
San 5 Gebedur Sewing Needles ▲ Titanium Nitride coated needles provides high protection. ▲ Higher needle beding resistance. ▲ Reduced needle breakage. ▲ Improved loop formation. ▲ Cut diamond point. ▲ Longer working time. ▲ Use for: technical textiles, firm materials, polycarbonate films.
106
90 14
100 16
110 18
120 19
130 21
140 22
160 23
180 24
200 25
V-30 V-46 V-69 V-92 V-138 V-207 V-346
Causes:
A
80 12
Part No.
Needle System Description
Size
NN43/0/120 NN43/0/130
System 135 x 17 System 135 x 17
120 130
Sewing Machine Needles Part No.
Needle System Description
Size
NN30/0/140 NN30/0/160 NN30/0/180
System 328 System 328 System 328
140 160 180
NN40/0/100 NN40/0/110 NN40/0/120 NN40/0/125 NN40/0/130
System 134, 135 x 7 System 134, 135 x 7 System 134, 135 x 7 System 134, 135 x 7 System 134, 135 x 7
100 110 120 125 130
NN42/0/110 NN42/0/120 NN42/0/125 NN42/0/130 NN42/0/140 NN42/0/160
System 135 x 17 System 135 x 17 System 135 x 17 System 135 x 17 System 135 x 17 System 135 x 17
110 120 125 130 140 160
NN44/0/110 NN44/0/120 NN44/0/130 NN44/0/140
System 134 x 35 System 134 x 35 System 134 x 35 System 134 x 35
110 120 130 140
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