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How many types of retaining rings are there?

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Retaining rings are fasteners used in mechanical assembly to prevent parts from moving axially or falling off. They can be divided into many types according to their functions and usage environments. The following are some common types of retaining rings:
Shaft retaining ring:
Open retaining ring (E-type retaining ring): This retaining ring is often used in shaft grooves and its shape is similar to an “E”.
Cylindrical retaining ring: A circular retaining ring designed to be installed on a cylindrical shaft.
Retaining ring for hole:
Open retaining ring for shaft: This retaining ring is used in the positioning groove on the shaft to help the parts to be fixed on the shaft.
Internal retaining ring: Also called internal snap ring, it is installed inside the hole to prevent axial movement of the part.
Tapered retaining ring: This retaining ring has a strong self-locking function and can be used in applications that require locking at a specific angle.
Wave retaining ring: A retaining ring with a corrugated structure that can provide a certain degree of elasticity and is used in places that require a buffering function.
Flat wire retaining ring: It has a flat cross-section and is usually used in more compact installation environments.
Depending on the specific use environment and needs, there are other retaining rings with special shapes or functions. When choosing a suitable retaining ring type, factors such as usage scenarios, mechanical requirements, and installation methods must be taken into consideration.

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Post time: Oct-25-2024