INDUSTRY COMPONENT

Locking Ring

A precision locking ring used in lens mounts to secure optical elements with controlled axial pressure and alignment.

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Component Specifications

Definition
A locking ring is a threaded or clamp-style precision component designed to secure optical lenses or elements within a lens mount assembly. It applies controlled axial pressure to maintain precise optical alignment, prevent movement during operation, and ensure consistent optical performance. In industrial applications, it must maintain micron-level tolerances while withstanding vibration, thermal expansion, and mechanical stress.
Working Principle
The locking ring operates on the principle of controlled mechanical interference. When tightened, it creates precise axial pressure against the optical element, generating friction that prevents rotation or axial movement. Threaded designs use helical threads to convert rotational torque into linear clamping force, while clamp-style designs use radial compression. Proper torque application ensures optimal pressure distribution without damaging optical surfaces.
Materials
Typically manufactured from: 1. Stainless Steel (AISI 304/316, 17-4PH) for corrosion resistance and strength, 2. Aluminum Alloys (6061-T6, 7075) for lightweight applications, 3. Titanium Alloys for high strength-to-weight ratio, 4. Engineering Plastics (PEEK, Delrin) for non-marring applications. Surface treatments include black oxide coating, passivation, or Teflon impregnation for reduced friction.
Technical Parameters
  • Tolerance ±0.01mm diameter, ±0.005mm concentricity
  • Thread Type Metric fine thread (M25x0.5, M30x0.75) or custom pitch
  • Diameter Range 10-100mm
  • Surface Finish Ra 0.8μm or better
  • Temperature Range -40°C to +120°C
  • Torque Specification 0.5-5.0 Nm depending on application
  • Vibration Resistance Up to 10g RMS
Standards
ISO 4759-1, DIN 13, ISO 965-1, ISO 286-2

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Locking Ring.

locking ring lens mount component precision fastening optical alignment threaded ring clamping mechanism industrial optics vibration resistant fasteners Locking Ring in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Lens Mount

Mechanical interface that connects a lens to an industrial camera body, ensuring precise alignment and secure attachment.

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Cable Gland

A mechanical device used to securely attach and seal the end of an electrical cable to equipment, providing strain relief and environmental protection.

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Engineering Analysis

Risks & Mitigation
  • Overtightening causing optical distortion
  • Thread galling in aluminum components
  • Thermal expansion mismatch
  • Vibration-induced loosening
  • Corrosion in harsh environments
FMEA Triads
Trigger: Incorrect torque application
Failure: Lens misalignment or damage
Mitigation: Use calibrated torque tools and follow manufacturer specifications
Trigger: Material fatigue from cyclic loading
Failure: Crack propagation and catastrophic failure
Mitigation: Regular inspection and replacement per maintenance schedule
Trigger: Thermal expansion differential
Failure: Loss of clamping force at temperature extremes
Mitigation: Select materials with compatible thermal expansion coefficients

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
ISO 286-2 medium tolerance class for diameters, ISO 965-1 tolerance class 6H/6g for threads
Test Method
Coordinate measuring machine (CMM) verification, torque testing per ISO 16047, vibration testing per IEC 60068-2-64

Buyer Feedback

★★★★☆ 4.8 / 5.0 (24 reviews)

"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Locking Ring so far."

"Testing the Locking Ring now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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Frequently Asked Questions

What is the primary function of a locking ring in lens mounts?

The primary function is to securely fasten optical elements while maintaining precise axial alignment and preventing movement during operation, vibration, or thermal cycling.

How do you determine the correct torque for a locking ring?

Correct torque is determined by material properties, thread pitch, required clamping force, and optical element sensitivity. Manufacturers provide specific torque values based on finite element analysis and testing.

Can locking rings be reused?

Yes, if within tolerance specifications and without thread damage. However, critical applications may require replacement after disassembly due to potential torque loss from thread deformation.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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