Обший каталог Yamawa 2016 - 2017 - страница 859

30. 29. Basic profile of threads


■ Thick Steel Conduit Threads (CTG)
■


Production data
ー
H
6
Internal Thread
ー
H
2
H1
H


27.5° 7.5°
2
ー
2
H


55°
ー
H
4


d 1 or D 1
d 2 or D 2
d or D
External Thread
P
H =0.960491P
H1 =0.560286P D =d
d 2 =d-0.640327P D2 =d2 P =25.4/n
d 1 =d-1.120572P D1 =d1 n =Thread per inch

■ Steel Conduit Threads (CTC)
ー
10
H


Internal Thread
ー
H
2
H1
H


40° 40°
ー
H
2


80°
d 1 or D 1
d 2 or D 2


External Thread
H2


d or D


P
■ H =0.59588P d1 =d-0.87703P
H1 =0.43851P D =d
H2 =0.09778P D2 =d2 P =25.4/n
d2 =d-0.47670P D1 =d1 n =Thread per inch


■ Bicycle Threads (BC)
ー
6
P


Internal Thread
ー
H
2


r
H1
H


30° 30°
ー
12
P


r
ー
H
2


60°
d1 or D1

d2 or D2


External Thread
d or D
ー
P
6


D'1


P
H =0.8660P d 1 =d-2H 1
H1 =0.5327P D =d D' 1 =d1+2×P/12
r =P/6 D2 =d2 P =25.4/n
d 2 =d-H 1 D1 =d1 n =Thread per inch

■ Tire Valve Threads (TV), Bicycle Tire Valve Threads (CTV)
ー
8
H


Internal Thread
ー
H
2
H1
H


30° 30°
ー
H
2


60°
Information
Technical
d1 or D1
d 2 or D 2


External Thread
d or D
ー
H
4


P
H =0.866025P
H1 =0.541266P D =d
d2 =d-0.649519P D2 =d2 P =25.4/n
d1 =d-1.082532P D1 =d1 n =Thread per inch

Technical-84
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