Coiled Spring Dowel Pin

Description

HBS Fasteners manufactures premium Coiled Spring Dowel Pins, engineered to solve the limitations of standard slotted pins. Unlike a single-gap pin, the coiled design acts as a shock absorber, distributing load and stress across the entire 360 degrees of the pin’s surface. This unique flexibility allows the pin to adapt to wider hole tolerances and prevents the “spring back” effect that often leads to hole fatigue in precision assemblies.

Technical Specifications

• Standard: Manufactured in compliance with ISO 8748 (Heavy Duty), ISO 8750 (Standard Duty), and DIN 7343/7344 standards.

• Design Feature: 2.25-coil spiral construction for maximum radial tension and uniform contact.

• Duty Types: Available in Light Duty, Standard Duty, and Heavy Duty configurations to match specific shear requirements.

• Size Range: Manufactured in standard metric diameters from 1.5mm to 16mm with customizable lengths.

• End Style: Chamfered ends for smooth insertion and to prevent damage to the mating bore.

Material & Quality Excellence

• Stainless Steel: Available in high-grade Austenitic and Martensitic (420 series) for corrosion resistance and high strength.

• Other Materials: Produced in High-Carbon Spring Steel and Alloy Steel.

• In-House Control: Produced using raw materials from our own wire drawing facility, ensuring the spring temper is perfectly maintained for long-term elasticity.

• Surface Finishing: Options include Zinc Plating, Black Oxide, Phosphate Coating, and Passivation.

Key Application Areas

• Automotive Engineering: Ideal for transmission linkages, gear selectors, and steering column assemblies.

• Heavy Machinery: Used in vibrating equipment where standard pins might loosen or fail due to fatigue.

• Agricultural Equipment: Perfect for hinge points and pivot shafts on tractors and harvesters.

• Power Tools: Essential for securing gears and internal mechanisms that experience high rotational impacts.