SPRING PIN
SPRING PIN Structure

SPRING PIN

A SPRING PIN is a hollow pin typically made from spring steel and commonly available in slotted or coiled designs. When pressed into a hole slightly smaller than the pin diameter, the pin compresses inward and generates outward radial force against the hole wall. It can be used for positioning, joining, retaining, and carrying shear loads.

Product Name: SPRING PIN / Roll Pin
Product Type: Slotted Spring Pin / Coiled Spring Pin
Product Structure: Hollow cylindrical body with a longitudinal slot or multi-layer coiled structure
Primary Functions: Positioning, joining, retaining, and transmitting shear loads
Outside Diameter: Selected according to the installation hole diameter and fit requirements
Length: Standard dimensions or specified according to workpiece thickness
End Types: Chamfered at both ends, chamfered at one end, or other specified configurations
Materials: Spring steel, stainless steel, carbon steel, or other specified materials
Heat Treatment: Applied according to elasticity, strength, and fatigue-resistance requirements
Surface Treatments: Black oxide, phosphate coating, zinc plating, passivation, or other specified finishes
Applicable Standards: DIN, ISO, JIS, ANSI, or customer-specified standards
Production Options: Standard specifications or custom production based on drawings
Packaging: Bulk packing, bag packing, or box packing

Category:

Secured by Its Own Spring Force

After being pressed into the mating hole, the SPRING PIN continuously applies outward pressure against the hole wall, allowing it to remain securely in position without threads or additional fastening components.

Compensates for Hole Tolerances

The elastic structure can accommodate a certain range of hole diameter and assembly tolerances, reducing the need for highly precise reamed or ground pin holes.

Carries Shear Loads

A SPRING PIN can be used to connect two or more components, carry transverse shear loads, and help prevent relative movement between assembled parts.

Easy to Install and Remove

SPRING PINS are typically installed by press-fitting and can be removed with a suitable punch, making them convenient for equipment assembly, maintenance, and component replacement.

Wide Range of Applications

SPRING PINS are commonly used in machinery, automotive and motorcycle components, molds, furniture, electronic equipment, automation mechanisms, and various transmission assemblies.

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