WIDIA - Полный каталог инструмента - 2017
Technical Information
Common Thread Forms
для размещения заказа - zakaz@widiahanita.ru
ISO M (Metric) and UN (Unied National)
UNJ (controlled root radius)
Whitworth (BSW)
Use: All branches of mechanical industry.
American Buttress
1/2 D play
Use: Aircraft and space industry.
NPT (American National Pipe Thread)
Use: Fittings and pipe couplings for gas, water, and
sewer lines (replaced by ISO).
BSPT (British Standard Pipe Thread)
1/2 D1 play
1/2 D2 play
axis of screw
taper 1:16
Use: Fittings and pipe couplings.
TR DIN 103
nut
Use: Fittings and pipe couplings.
Acme
1/2 D play
axis of screw
taper 1:16
Use: Pipe thread for steam, gas, and water lines.
Acme, truncated (Stub)
1/2 D play
screw
Use: Mechanical industry for motion
transmission screws.
API Casing and Tubing Round Thread Form
1/2 D1 play
1/2 D2 play
A = 0,0307 P
B = 0,3707 P—x D play
C = 0,3707 P—(D1 play—D2 play)
Use: Acme-General is used in mechanical industry for
motion transmission screws.
1/2 D1 play
1/2 D2 play
A = 0,4224 P
B = 0,4224 P—x D play
C = 0,4224 P—(D1 play—D2 play)
Use: Where normal Acme is too deep.
pitch
line
taper = 62,5mm per metre on diameter
NOTE: Taper shown exaggerated.
F80
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