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A circlip in accordance with GOST 13943-86 is an eccentric fastener used on a shaft or in a bore. Visually, this part is a ring with free edges on which holes are placed for easy fixation inside the hole.
It prevents spontaneous displacement of the mechanism elements relative to each other, which is especially important some time after installation. This increases the reliability of the structure.
Fastening group of GOST 13943-86
GOST 13943-86 is mainly made of stainless steel and belongs to the stainless steel fastener group.
Materials of manufacture:
The retaining ring of GOST 13943-86 is mainly made of:
- Steel, which can be additionally coated with zinc plating.
- Stainless steel A2, as well as 1.4532 (austenitic). This material does not require any additional treatments.
Selection of the locking inner ring
- Its material should be selected taking into account the load and the environment in which it will be used.
- More details about the dimensions in GOST 13943-86 pdf.
Application of the circlip according to GOST 13943-86
Grooves for retaining rings of GOST 13943-86 are located in the housing, behind the seating surface of rolling bearings and other parts, so that the protruding part of the retaining ring fixes the part in the mounting location.
Snap rings are used in almost all areas where housing structures with shafts, bearings and other parts are used.
Speaking specifically about the areas of application, snap rings are most popular in:
- Automotive industry
- Machine tool building
- Mechanical engineering
Special tools are used to assemble and disassemble this fastener. However, small-diameter circlips can be installed with a regular flathead screwdriver.
The scope of application of GOST 13943-86 also directly depends on the material of manufacture of this fastener:
- Zinc-coated steel is less susceptible to corrosion if GOST 13943-86 is used in aggressive environments.
- Stainless steel.Steel grade A2 allows the use of GOST 13943-86 at significant temperature drops and in aggressive and humid environments. This material does not require a coating.
