R-pin/R-clip

The R-pin is a simple yet effective mechanical fastener widely used in industrial production and everyday applications. Understanding the types, working principles, and selection methods of R-pins can help users choose and utilize them more effectively.

Working Principle of R-Pins:

• Insertion into hole: The straight leg of the R-pin is inserted into a hole near one end of a shaft.

• Elastic deformation: The semi-circular "belly" in the bent leg of the R-pin grips one side of the shaft, causing elastic deformation.

• Securing: This elastic deformation generates an inward force that firmly clamps the shaft, achieving secure fastening.

Types of R-Pins:

• Carbon steel R-pins: The most common type, economical and suitable for general use.

• Stainless steel R-pins: Corrosion-resistant, ideal for humid or corrosive environments.

• Zinc-plated R-pins: Carbon steel R-pins coated with a layer of zinc to enhance corrosion resistance.