INDUSTRY COMPONENT

Locking Washer

A locking washer designed to maintain preload in adjustment mechanisms by preventing fastener loosening under vibration and dynamic loads.

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Component Specifications

Definition
A specialized washer used in preload adjustment mechanisms to secure fasteners against rotational loosening caused by vibration, thermal cycling, and dynamic operational forces. It functions by creating frictional resistance or mechanical interference between the fastener and mating surface, ensuring consistent preload maintenance critical for precision machinery alignment and performance.
Working Principle
Works by generating axial tension and radial expansion when compressed under a fastener, creating spring-like action that maintains clamping force. Some designs feature teeth or serrations that bite into mating surfaces, providing mechanical locking through deformation or interference fit.
Materials
Typically made from spring steel (SAE 1070-1095), stainless steel (AISI 304/316), or alloy steel. May feature zinc plating, phosphate coating, or dichromate treatment for corrosion resistance.
Technical Parameters
  • Hardness HRC 40-50
  • Thickness 0.5-3 mm
  • Load Capacity 50-500 N
  • Inner Diameter 4-25 mm
  • Outer Diameter 8-50 mm
  • Temperature Range -40°C to 250°C
Standards
ISO 7085, DIN 6796, ANSI B18.21.1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Locking Washer.

locking washer preload adjustment vibration resistant fastener security industrial components mechanical locking Locking Washer in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Preload Adjustment Mechanism

A mechanical component within end supports or bearings that allows controlled adjustment of the preload force applied to rolling elements.

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Cable Gland / Connector

A mechanical device used to securely attach and seal electrical cables to equipment housings while providing strain relief and environmental protection.

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Engineering Analysis

Risks & Mitigation
  • Over-torquing causing deformation
  • Material fatigue under cyclic loads
  • Corrosion in harsh environments
  • Incompatibility with soft mating surfaces
FMEA Triads
Trigger: Insufficient torque during installation
Failure: Inadequate preload maintenance leading to mechanism misalignment
Mitigation: Use calibrated torque wrenches and follow manufacturer specifications
Trigger: Material degradation from corrosion
Failure: Reduced locking force and potential fastener loosening
Mitigation: Select appropriate corrosion-resistant materials and coatings

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1 mm on critical dimensions per ISO 2768-m
Test Method
Vibration testing per ISO 16148, torque retention testing, salt spray testing per ASTM B117

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

How does a locking washer differ from a standard washer?

Locking washers incorporate design features like teeth, serrations, or spring action to prevent rotational loosening, while standard washers primarily distribute load.

Can locking washers be reused?

Generally not recommended as deformation and wear reduce effectiveness. Single-use ensures optimal locking performance.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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