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What Are The Characteristics Of ANSI B18.2.1 Bolts?
Adaugat pe 10/09/2019 05:03:47 de haiyanabyihui

ANSI
B18.2.1
bolts
have non-metallic nesting nuts, inline steel nut, inline spring wire nut, flange
indented nut, flattened nut, etc. Non-metallic nested nut GB889 (ie nylon lock
nut): This
ANSI
B18.2.1
 bolt
is actually not loose-proof, only some anti-offset. It hoops the bolt through
the tension of the nylon ring.


Inline
steel plate nut GB6187 (metal lock nut): The essence is that the embedded steel
piece is perpendicular to the axis of the nut and parallel to the end face of
the nut. The steel plate is used to change the angle and pitch of the last
thread. Its own elasticity to prevent loose, anti-loose effect is weak, one-time
use.


Spring
wire nut (ie plus wire screw sleeve): There are two parts inside the nut. The
pitch of the spring is different from the thread pitch. The inner diameter of
the spring is small and there is a little anti-offset. Flattened nut (three-head
flattened nut): In a good case, it is equivalent to the combination of ordinary
nut and lock nut, which has certain anti-loosening performance, but the
consistency is very poor, and it is not suitable for multiple use. Flange
indentation type lock nut (ie nut with a tooth on the flange surface): This nut
has basically no anti-loosening effect, and its indentation surface has a larger
friction coefficient than the smooth nut, and nothing more. However, this has
nothing to do with the anti-loose performance. Because it is loose, it is
loosened first and then loosened. There is no positive pressure, and the
friction coefficient is no longer useful.


ANSI
B18.2.1
Bolts
are resistant to wear and shear:
ANSI
B18.2.1
Bolt
thread bottom 30 degree bevel allows the nut locking force to be evenly
distributed over the threads of all teeth due to the pressure on the threads of
each thread Tight force distribution is uniform, so
ANSI
B18.2.1
bolts
can better solve the problem of thread wear and shear deformation.

Tag-uri: ANSI B18.2.1





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