DIN471, DIN472, and DIN6799 refer to specific international standards for circlips (also known as retaining rings). These fasteners are designed to be installed into grooves on shafts (DIN471) or within bores (DIN472) to create a shoulder that retains components. DIN6799 specifically refers to E-clips, which are external circlips that offer a three-point contact for retention. When made from SS304 or SS316 stainless steel, these circlips offer excellent corrosion resistance and durability for a wide range of applications.

Definition

DIN471, DIN472, and DIN6799 stainless steel circlips (retaining rings) are precision-engineered fasteners used to secure components on shafts or within bores. DIN471 specifies external circlips for shafts, DIN472 specifies internal circlips for bores, and DIN6799 specifies E-clips. Manufactured from SS304 or SS316 stainless steel, these rings provide high tensile strength, resistance to rust and chemicals, and reliable retention, making them ideal for demanding environments.

Key Features

• Standard Compliance: Adhere to DIN471 (external for shafts), DIN472 (internal for bores), and DIN6799 (E-clips) industrial standards, ensuring dimensional accuracy and performance.
• Material: Made from high-grade SS304 or SS316 stainless steel, offering superior corrosion resistance, high temperature tolerance, and excellent mechanical properties.
• Retaining Function: Designed to fit into machined grooves, creating a secure shoulder that prevents axial movement of components.
• Easy Installation/Removal: Can be installed and removed with appropriate circlip pliers (for DIN471/472) or by pressing/prying (for DIN6799 E-clips), allowing for assembly and disassembly.
• Precision Engineering: Manufactured to tight tolerances to ensure optimal fit and reliable retaining performance.

Applications

• Automotive Industry: Used in transmissions, braking systems, axles, and other mechanical assemblies to retain bearings, gears, and pins.
• Machinery and Equipment: Critical for securing components in pumps, motors, valves, and industrial machinery where precise positioning and axial retention are needed.
• Electronics and Appliances: Employed in household appliances, power tools, and electronic devices to hold shafts, small gears, and other moving parts.
• Fluid Power Systems: Utilized in hydraulic and pneumatic cylinders and valves to retain pistons and other internal components.
• Aerospace: Found in various aircraft systems where reliable, corrosion-resistant fasteners are essential.
• Marine Applications: SS316 circlips are particularly suitable for marine environments due to their enhanced resistance to saltwater corrosion.

Advantages

• High Corrosion Resistance: SS304 and SS316 stainless steel prevent rust and degradation, extending product lifespan, especially in harsh or wet conditions.
• Reliable Component Retention: Provides a strong and secure shoulder, effectively preventing axial displacement of parts.
• Space-Saving Design: Their compact profile allows for component retention without requiring bulky fasteners or additional machining.
• Cost-Effective Assembly: Simplifies assembly processes by eliminating the need for threading or welding, reducing labor and material costs.
• Versatility: Available in various sizes and types, suitable for a broad spectrum of industrial and commercial applications.