INDUSTRY COMPONENT

Trigger Spring

A precision spring component in trigger assemblies that provides controlled force for actuation and reset functions in mechanical systems.

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Component Specifications

Definition
The Trigger Spring is a critical mechanical component within trigger assemblies, engineered to store and release elastic energy to facilitate precise actuation and automatic reset functions. It ensures consistent force application, maintains trigger position, and returns the mechanism to its neutral state after operation. This component is essential for reliable performance in various mechanical and electromechanical systems where controlled triggering is required.
Working Principle
The Trigger Spring operates on Hooke's Law, where applied force causes elastic deformation (compression or extension) that stores potential energy. When released, this stored energy returns the spring to its original shape, providing the necessary force to actuate or reset the trigger mechanism. The spring's design ensures predictable force-displacement characteristics for consistent performance.
Materials
High-carbon steel (AISI 1065-1095), stainless steel (302/316), music wire (ASTM A228), or alloy steel (ASTM A401) with optional coatings like zinc plating, phosphate coating, or powder coating for corrosion resistance.
Technical Parameters
  • End Type Closed and ground
  • Free Length 10-50 mm
  • Spring Rate 5-50 N/mm
  • Load Capacity 10-200 N
  • Wire Diameter 0.5-2.0 mm
  • Surface Finish Plain or coated
  • Operating Temperature -40°C to 120°C
Standards
ISO 10243, DIN 2098

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Trigger Spring.

trigger spring mechanical spring trigger assembly component compression spring industrial springs spring specifications ISO 10243 DIN 2098 Trigger Spring in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Trigger Assembly

The firing control mechanism of a tactical semi-automatic rifle that initiates the firing sequence when pulled.

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Engineering Analysis

Risks & Mitigation
  • Fatigue failure from cyclic loading
  • Corrosion in humid environments
  • Installation damage
  • Incorrect spring rate selection
FMEA Triads
Trigger: Material fatigue from repeated compression cycles
Failure: Spring fracture leading to trigger mechanism failure
Mitigation: Use high-cycle fatigue-resistant materials, implement proper design with stress relief features, and conduct regular maintenance inspections
Trigger: Exposure to corrosive environments
Failure: Corrosion weakening spring material and reducing lifespan
Mitigation: Apply protective coatings, use corrosion-resistant materials like stainless steel, and implement environmental controls
Trigger: Improper installation or handling
Failure: Spring deformation or damage during assembly
Mitigation: Provide clear installation guidelines, use proper tools, and train personnel on correct handling procedures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±10% on spring rate, ±0.1 mm on dimensions per ISO 10243 Class 2
Test Method
Compression testing per ASTM F382, fatigue testing per ISO 12106, corrosion resistance testing per ASTM B117

Buyer Feedback

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Frequently Asked Questions

What is the primary function of a trigger spring?

The primary function is to provide controlled force for actuating the trigger mechanism and ensuring it returns to its original position after release, enabling consistent and reliable operation.

How do I select the right trigger spring for my application?

Consider factors like required force (spring rate), operating environment (material corrosion resistance), space constraints (dimensions), cycle life, and compliance with relevant standards like ISO 10243.

What are common failure modes for trigger springs?

Common failures include fatigue fracture from cyclic loading, permanent set from over-compression, corrosion in harsh environments, and installation damage from improper handling.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Trigger Pocket Trough / Housing