Locking rings retain and seal threaded items
A
Challenge (Europe) product story
Edited by the Engineeringtalk editorial team
Mar 26, 2001
Challenge Industrial Fastenings are pleased to offer the Dubo range of polyamide sealing/locking rings available for threaded fasteners from M2 to M52.
Challenge Industrial Fastenings are pleased to offer the Dubo range of polyamide sealing/locking rings available for threaded fasteners from M2 to M52.
This cheap and simple solution offers Original Equipment Manufacturers and Installers an ideal way to permanently retain and seal threaded items and is a sister product to the recently announced Korrex ranges of insulating bushes and nut caps.
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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