Structured Manufacturing Data (2026)

Focusing Helix

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Focusing Helix used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Focusing Helix is characterized by the integration of Helical groove and Mounting flange. In industrial production environments, manufacturers listed on CNFX commonly emphasize Aluminum alloy construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision helical component within a lens barrel that enables controlled axial movement for focus adjustment.

Product Specifications

Technical details and manufacturing context for Focusing Helix

Definition
The focusing helix is a critical mechanical component in optical lens systems, typically integrated into the lens barrel. It consists of precisely machined helical grooves or threads that engage with corresponding elements to convert rotational motion into linear displacement. This allows for smooth, accurate adjustment of lens element positions along the optical axis, enabling precise focus control in cameras, microscopes, telescopes, and other optical instruments.
Working Principle
When the focusing ring is rotated, the helical grooves of the focusing helix engage with mating components (such as pins or followers). This engagement converts the rotational force into linear motion along the optical axis, moving lens elements forward or backward to adjust the focal point. The pitch and angle of the helix determine the sensitivity and range of focus adjustment.
Common Materials
Aluminum alloy, Brass, Stainless steel
Technical Parameters
  • Helix pitch (distance between threads) typically ranging from 0.5mm to 2.0mm depending on application (mm) Per Request
Components / BOM
  • Helical groove Part
    Engages with follower pins to convert rotation to linear motion
    Material: Same as main helix material
  • Mounting flange Part
    Secures helix to lens barrel structure
    Material: Same as main helix material
  • Lubrication channel Part
    Distributes lubricant for smooth operation
    Material: Integrated feature

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Focusing Helix.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric only (non-pressure vessel)
other spec: Max axial load: 50N, Max rotational speed: 100 RPM, Operating humidity: 0-85% RH non-condensing
temperature: -20°C to +80°C
Media Compatibility
✓ Clean dry air ✓ Optical-grade lubricants (e.g., perfluoropolyether) ✓ Nitrogen-purged environments
Unsuitable: Abrasive particulate environments (e.g., sand, metal dust)
Sizing Data Required
  • Lens barrel inner diameter (mm)
  • Required focus travel range (mm)
  • Required focus resolution/step size (microns)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Abrasive erosion
Cause: Prolonged exposure to particulate-laden fluids causing material degradation and loss of geometric integrity
Cavitation
Cause: Pressure fluctuations leading to vapor bubble formation and collapse, causing surface pitting and fatigue cracking
Maintenance Indicators
  • Audible high-frequency vibration or whining noise during operation
  • Visible material loss or pitting on helical surfaces during inspection
Engineering Tips
  • Implement real-time particle monitoring and filtration systems to maintain fluid cleanliness within specified limits
  • Optimize operating parameters to maintain stable pressure profiles and avoid conditions conducive to cavitation

Compliance & Manufacturing Standards

Reference Standards
ISO 2768-1: General tolerances for linear and angular dimensions ANSI B4.1: Preferred Limits and Fits for Cylindrical Parts DIN 7184: Tolerances for linear dimensions
Manufacturing Precision
  • Helix angle: +/-0.5 degrees
  • Lead accuracy: +/-0.01 mm per revolution
Quality Inspection
  • Coordinate Measuring Machine (CMM) for geometric verification
  • Surface roughness measurement per ISO 4287

Factories Producing Focusing Helix

Manufacturer profiles with relevant production capability in China

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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

What materials are available for the Focusing Helix?

The Focusing Helix is manufactured from high-quality materials including aluminum alloy for lightweight applications, brass for durability and smooth operation, and stainless steel for corrosion resistance in demanding environments.

How does the helical groove enable precise focus adjustment?

The precisely machined helical groove converts rotational motion into controlled axial movement, allowing for smooth and accurate focus adjustment in optical systems with minimal backlash or wobble.

What are the key components in the Focusing Helix BOM?

The Bill of Materials includes the helical groove for motion conversion, lubrication channels to ensure smooth operation and longevity, and mounting flanges for secure integration into lens barrel assemblies.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

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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