Polyamide sealing/locking rings: cheap and simple
A
Challenge (Europe) product story
Edited by the Engineeringtalk editorial team
Feb 16, 2000
Polyamide sealing/ocking rings for threaded fasteners from M2 to M52 offer Original Equipment Manufacturers and Installers an ideal way to permanently retain and seal threaded items
Challenge Industrial Fastenings Ltd are pleased to announce the largest range of polyamide sealing/ocking rings available for threaded fasteners from M2 to M52.
This lcheap and simple solution offers Original Equipment Manufacturers and Installers an ideal way to permanently retain and seal threaded items.
Dubo rings can be used on their own or with a toothed collar ring for especially high loading specifications, e.g using 8.8 and 10.9 bolts.
In addition to having the locking action of a normal lock washer, the elastic distortion which occurs when the material is subjected to heavy pressure, creates considerable frictional resistance.
The shape of the ring is so designed that as the bolt is screwed home the screw thread is gripped both along the internal circumference and in the bolt hole.
This brings into effect additional frictional forces which make it impossible for the ring to rotate around the bolt.
Other features resulting from the use of this plastics material are the elimination of leakage, protection of the underlying surface, sound deadening, isolation and corrosion resistance.
The Dubo system is applicable to all forms of hex nut or socket screw and the polyamide rings are resistant to all generally encountered chemicals, e.g alkalis, petrol, sea water etc.
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