Circlips (also known as retaining rings) are spring-like rings designed to secure components on shafts or in bores, preventing axial movement. Manufactured from stainless steel (304/316), carbon steel (spring-tempered), or phosphor bronze, they offer high elasticity and durability. Available in internal (for bores) and external (for shafts) types, they are critical in automotive, machinery, and electronics for compact, cost-effective retention.
- Material:
- Carbon Steel: 65Mn (spring steel, heat-treated to 48–52 HRC).
- Stainless Steel: 304 (A2) for corrosion resistance; 316 (A4) for marine environments.
- Non-Metallic: Nylon/Plastic (for lightweight, non-conductive applications).
- Size Range:
- Metric: 3–200 mm (shaft/ bore diameter).
- Imperial: 1/8"–8" (ANSI/ASME B18.23.1).
- Design Types:
- Internal Circlips: Installed in grooves within bores (e.g., to retain bearings in housings).
- External Circlips: Fit into shaft grooves to secure gears or pulleys.
- Snap Rings: Thicker variants for heavy-duty loads (e.g., truck axles).
- Key Dimensions:
- Width (b): 0.8–5 mm (varies by size and material).
- Free Diameter (D): Slightly larger/smaller than installed diameter for spring tension.
- Finish: Black oxide (corrosion resistance), zinc plating, or passivated (stainless steel).
- Standard Carbon Steel Circlips (5–50 mm): 10,000 pieces (in-stock sizes).
- Stainless Steel 304 (10–100 mm): 5,000 pieces (custom groove dimensions available).
- Heavy-Duty Snap Rings (60 mm+): 2,000 pieces (industrial-grade).
Factory Advantages: ISO 9001-certified production, precision stamping for consistent tension, and support for non-standard groove tolerances or anti-corrosive coatings with lead times of 7–15 days.
- Automotive: Securing wheel bearings, transmission components, and engine parts.
- Industrial Machinery: Retaining gears, pulleys, and sprockets on shafts in pumps or conveyors.
- Electronics: Light-duty retention of switches, knobs, or connectors in consumer devices.
- Aerospace: High-reliability circlips in aircraft actuators and control systems (stainless steel 316).
- Axial Retention: Spring tension creates a secure lock, with removal requiring 专用工具 (e.g., circlip pliers).
- Space Efficiency: Thinner than traditional collars, ideal for compact designs.
- Corrosion Resistance:
- 316 stainless steel: 1,000+ hours salt spray (ASTM B117).
- Black oxide carbon steel: 500+ hours salt spray for indoor use.
- Temperature Range: -40°C to +200°C (carbon steel); -60°C to +300°C (stainless steel).
- Material Grades: Inconel (high-temperature resistance) or beryllium copper (non-magnetic).
- Special Coatings: PTFE (low friction), Dacromet (2,000+ hours salt spray), or gold plating (electrical conductivity).
- Bespoke Designs:
- Tapered edges for easier installation.
- Latch-style circlips for quick-release applications.
- Tool Compatibility: Works with standard circlip pliers or automated assembly equipment.
- Quality Assurance: 100% tension testing to ensure retention force meets ISO 3267 standards.
- Sustainability: Recyclable steel options and minimal material waste in production.
Contact Us
Request a quote for circlips tailored to your retention needs! Factory-direct pricing and global shipping for automotive, industrial, and aerospace applications. Bulk discounts available for orders over 50,000 pieces.
