Locking ring

from Wikipedia, the free encyclopedia
Machine part with four external retaining rings. The three brass-colored, clip-on rings carry the trade name E-Ring (see also "Lock washer" according to DIN 6799); the large ring can be opened with circlip pliers.
Internal locking ring

A locking ring or grooved ring , often still known as a Seeger ring after a manufacturer , is a machine element for axially securing bolts in bores or components, for example roller bearings , on a shaft or axis .

Accordingly, there are internal circlips for bore mounting (with ends facing inward) and external circlips for shaft mounting (with ends facing outward).

These rings belong to the standard parts . The rings found in mechanical engineering are standardized according to DIN 471 for shaft grooves and DIN 472 for bore grooves.

The simplest versions are of the snap ring to the shaft assembly and a bent of round wire and twice eingewinkelter on the ring shock absorber ring which can be placed in the inside of a sleeve (drilling assembly) by making the annular gap during assembly by circlip pliers is compressed.

The version standardized according to DIN 471 and DIN 472 is punched as a flat ring and ground and has two holes for dismantling and assembly using special circlip pliers.

A locking ring needs a groove to be positioned . This is first inserted into a shaft from the outside, plunged into a hole from the inside or milled .

An alternative to the retaining ring is the lamellar ring , which can also be used for grooves in bores and shafts. No circlip pliers are required for assembly or disassembly.

Bolt connections with a diameter of more than 18 mm are also secured using axle holders .

Lock washers

Lock washer, which is also known as an "E-ring" due to a certain similarity with the letter "E" or "e".
E-ring on the axis of an action camera housing

Lock washers are placed on shafts like shaft retaining rings. They are standardized according to DIN 6799 and intended for smaller shafts (diameters of 1.4 mm to 38 mm are common). The disks have three areas on the inside diameter in which they rest on the groove base.

Lock washers are pushed into the groove of the shaft for assembly without opening them with the pliers. Therefore, you do not need any holes to attach the circlip pliers.

To loosen, grasp under one of the arms with the flat blade of a screwdriver of the appropriate size or with a pick to lift the disc out of the groove.

One application for lock washers is in captive screws .

See also

Web links

Individual evidence

  1. ^ German Patent and Trademark Office, registration number 601140 Website of the German Patent and Trademark Office. Retrieved April 12, 2016.
  2. ^ German Patent and Trademark Office, registration number 379225 Website of the German Patent and Trademark Office. Retrieved April 12, 2016.
  3. ↑ WIPO / ROMARIN WIPO international registration number 379225 Web site of the World Intellectual Property Organization (WIPO), international registration number 379225, accessed on April 12, 2016.
  4. ^ Seeger-Orbis, overview website of the manufacturer and trademark holder Seeger-Orbis. Retrieved April 12, 2016.