Page 29 - THREADING CATALOG
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USER GUIDE
Helix (Lead) Angle Area by Using Graph
Helix Angle Evaluation
φ(φ ) φ(φ ) L φ(φ ) L φ(φ ) L φ(φ ) L
L
5° 4° 3° 2° 1°
10
9.5 THREAD TURNING
9
8.5
8
7.5
7
6.5 6
pitch / lead [mm] 5.5 5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
diameter [mm]
Detailed View for Small Pitch/diameter
φ(φ ) φ(φ ) L φ(φ ) L
L
5° 4° 3°
1.5
1.4
1.3
1.2 φ(φ ) L
1.1 2°
1
pitch / lead [mm] 0.9
0.8
0.7
0.6 φ(φ ) L
1°
0.5
0.4
0.3
0.2
0.1
0
0 1 2 3 4 5 6 7 8 9 10
diameter [mm]
27
