External Circlip Retaining Shaft Snap Rings

The External Circlip Retaining Shaft Snap Rings produced by the Xiaoguo® factory have reliable axial positioning, which can effectively prevent bearings, gears, etc. from falling off when subjected to vibrations.

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Product Description

The core of the selection of External Circlip Retaining Shaft Snap Rings materials lies in choosing from among the four major types of materials: spring steel, stainless steel, special alloys, and copper alloys.

（1）Spring steel

Carbon spring steel, mostly 65Mn, is the regular and most used material for External Circlip Retaining Shaft Snap Rings.It has balanced elasticity and strength, cost-effective, and widely used in general industrial fields.

65Mn is the most common grade. It’s largely used for medium and heavy load occasions like automobiles and ordinary machinery.Normally it needs quenching and tempering, to keep steady hardness and elasticity.

60Si2MnA fits working conditions that need higher stress tolerance and better impact resistance.

External Circlip Retaining Shaft Snap Rings

（2）Stainless steel

Stainless steel External Circlip Retaining Shaft Snap Rings work well in corrosive or clean working surroundings.But under the same size, its overall mechanical performance is generally not as good as spring steel.

304 (A2) is the regular option, it can resist corrosion in most common environments.

316 (A4) contains molybdenum. It works better against chloride corrosion like seawater, as well as acid and alkali corrosion.

1.4122 follows DIN standard. It has good hardness and wear resistance, and its mechanical performance is close to spring steel.

（3）Copper alloy

Copper alloy has no magnetism, won’t create sparks, and conducts electricity well.Copper alloy External Circlip Retaining Shaft Snap Rings are used in places with special requirements on magnetism and conductivity.

The main downside is its elastic modulus and strength are much lower than steel.It’s easy to have permanent deformation when bearing heavy loads.

External Circlip Retaining Shaft Snap Rings

Mon	Φ3	Φ4	Φ5	Φ6	Φ7	Φ8	Φ9
h max	0.4	0.4	0.6	0.7	0.8	0.8	1
h min	0.35	0.35	0.55	0.65	0.75	0.75	0.94
d max	2.74	3.74	4.74	5.64	6.56	7.46	8.46
d min	2.55	3.55	4.55	5.45	6.32	7.22	8.22
d1 min	1	1	1	1.2	1.2	1.2	1.2
b1 max	1.9	2.2	2.5	2.7	3.1	3.2	3.3

（4）Special alloys

Special alloys are made for extreme working conditions, such as high temperature, heavy corrosion and super high stress.

High-temperature alloy is used for parts in aircraft engines, gas turbines and other equipment running above 650°C.

Heat-resistant alloy steel is high-strength and heat-proof, used for retaining rings working under both high temperature and heavy load.

High-boron copper is a high-grade copper alloy. It has better strength and fatigue resistance than regular copper alloys.It’s applied in high-demand industries like aerospace and oil drilling.