Product Parameter Specifications
Parameter | Details |
Product Name | DIN 471 External Circlip, Shaft Retaining Ring |
Standard | DIN 471 (-1)-2011(Normal Type), DIN 471 (-2)-2011(Heavy Duty) |
Type | Normal Type (-1), Heavy Duty Type (-2) |
Shaft Diameter Range | φ3mm–φ300mm Full Sizes |
Material | 65Mn, C67S Spring Steel, Stainless Steel |
Hardness | HRC 44–51, stable elasticity |
Surface Finish | Black oxide, phosphating, zinc plating, anti-rust treatment |
Key Features | Fast assembly, space-saving, elastic locking, precise positioning |
Applications | Reducers, motors, transmission mechanisms, hydraulic equipment |
Installation Tool | Shaft circlip pliers |
Supply Capacity | Full sizes in stock, bulk export orders & custom sizes available |
Core Product Advantages
Made of high-toughness spring steel with professional heat treatment, the circlip features excellent resilience. It fits tightly with shaft grooves after installation, effectively reducing axial displacement caused by equipment vibration and ensuring stable operation accuracy of machinery.
Space-saving minimalist structure
The thin annular structure requires no extra bolts, washers or welding fixation. It can be fixed by simply clamping into shaft grooves with minimal installation space, perfectly suitable for compact precision equipment and micro transmission components.
Complete specifications & strong compatibility
Manufactured strictly in accordance with DIN 471:2011 standard, divided into normal (-1) and heavy-duty (-2) types. Full-size coverage with precise dimensional tolerance ensures high fitting accuracy, serving as a perfect replacement for imported original parts for equipment assembly and maintenance.
Fatigue resistance & long service life
The professional quenching and tempering process balances hardness and elasticity effectively. The circlip is not easy to deform or lose elasticity under repeated disassembly and high-frequency vibration, reducing later maintenance and replacement costs.
Efficient assembly & maintenance
It can be quickly installed and disassembled with standard circlip pliers, greatly improving efficiency for mass production and daily equipment maintenance, suitable for factory assembly lines and engineering after-sales service.
Production Process
Material Selection: High-quality spring steel coil with uniform texture and stable mechanical properties to guarantee elasticity and fatigue resistance.
Precision Stamping: Integrated molding with high-precision molds to ensure standard outer diameter, thickness and opening size, smooth and burr-free edges.
Heat Treatment: Professional quenching and tempering to stabilize hardness and elastic tension, preventing relaxation and failure during use.
Flatness Calibration: Secondary correction to ensure overall flatness, tight fitting without warping or offset after installation.
Anti-corrosion Treatment: Black oxide, phosphating and zinc plating processes enhance oxidation and rust resistance for different working environments.
Strict Batch Inspection: Dimensional tolerance, elastic tension, flatness and appearance tests eliminate defective products and ensure stable batch quality.
Application Industries
Reduction & Transmission Equipment: Axial limiting fixation for gears and bearings inside reducers to reduce vibration displacement.
Electrical Motor Components: Positioning of motor shafts, rotors and bearings to ensure stable high-speed operation.
Hydraulic & Pneumatic Devices: Limiting assembly for rotating and moving parts of hydraulic valves and cylinders.
General Mechanical Equipment: Anti-shift positioning for transmission components of machine tools, light industry and conveying machinery.
Automotive & Agricultural Machinery: Fastening and limiting of transmission shaft parts for vehicles and farm equipment.
Installation & Usage Notes
1. Match shaft & groove size: Select specifications according to actual shaft diameter and groove size to avoid poor fitting, falling off or deformation.
2. Use professional tools: Assemble and disassemble with dedicated circlip pliers; violent prying is forbidden to prevent elastic deformation and performance failure.
3. Reasonable type selection: Choose heavy-duty type (-2) for high-load and impact working conditions, and normal type (-1) for conventional light-load scenarios.
4. Reduce repeated disassembly: Frequent disassembly may weaken elasticity. Replace new circlips regularly for key precision transmission positions.
5. Environment adaptation: Select zinc-plated or stainless steel types for humid and corrosive environments to avoid rust and precision loss.
Why Choose Our DIN 471 Circlips
We specialize in manufacturing standard (-1) and heavy-duty (-2) DIN 471 shaft retaining rings. Adopting high-quality spring steel and strict DIN 471 (-1/-2)-2011 production technology, our products feature stable elasticity, precise size and strong fatigue resistance. Full-size stock supports fast bulk export delivery. With standardized quality inspection, our burr-free and non-deforming circlips are widely applicable for assembly and maintenance replacement of imported and domestic mechanical equipment, providing cost-effective standard fastener solutions for global manufacturing customers.
For high-quality DIN471 external circlips and customized fastener solutions, please contact our sales team for professional quotations and technical support.
