Industry-Verified Manufacturing Data (2026)

Focusing Helix

Based on aggregated insights from multiple verified 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.

View Full Specifications Explore Manufacturing Sources

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
    Engages with follower pins to convert rotation to linear motion
    Material: Same as main helix material
  • Mounting flange
    Secures helix to lens barrel structure
    Material: Same as main helix material
  • Lubrication channel
    Distributes lubricant for smooth operation
    Material: Integrated feature
Engineering Reasoning
0.1-5.0 N·m torque, 0.01-0.5 mm axial displacement, 20-80°C temperature
Helix pitch deviation > 0.005 mm, axial load > 15 N, surface roughness Ra > 0.8 μm
Design Rationale: Helical thread plastic deformation due to Hertzian contact stress exceeding material yield strength (σ_y > 450 MPa for aluminum alloy 7075-T6)
Risk Mitigation (FMEA)
Trigger Contaminant particle ingress (diameter > 10 μm) between helical threads
Mode: Increased friction coefficient (μ > 0.25) causing binding and stepwise motion
Strategy: Integrate labyrinth seal with 0.05 mm clearance and positive pressure purge (1.2 bar)
Trigger Cyclic thermal expansion mismatch (Δα = 12×10^-6 K^-1) between aluminum helix and steel barrel
Mode: Progressive pitch error accumulation exceeding 0.003 mm per 1000 cycles at 60°C differential
Strategy: Implement Invar 36 alloy spacer with α = 1.2×10^-6 K^-1 and thermal compensation algorithm

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Focusing Helix.

precision helical focus component lens barrel aluminum alloy helical groove optical manufacturing brass focusing helix with lubrication channel stainless steel mounting flange for lens systems axial movement control helical component optics

Applied To / Applications

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

Lens Barrel
View system integration details

Industrial Ecosystem & Supply Chain DNA

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

Verified manufacturers with capability to produce this product in China

Add your factory

✓ 94% Supplier Capability Match Found

S Sourcing Manager from United Arab Emirates Feb 21, 2026
★★★★★
"Found 38+ suppliers for Focusing Helix on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
P Procurement Specialist from Australia Feb 18, 2026
★★★★☆
"The technical documentation for this Focusing Helix is very thorough, especially regarding technical reliability. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
T Technical Director from Singapore Feb 15, 2026
★★★★★
"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Focusing Helix so far."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

17 sourcing managers are analyzing this specification now. Last inquiry for Focusing Helix from Mexico (1h ago).

Supply Chain Compatible Machinery & Devices

Industrial Smart Camera Module

Embedded vision system for industrial automation and quality inspection.

Explore Specs →
Industrial Wireless Power Transfer Module

Wireless power transfer module for industrial equipment applications

Explore Specs →
Industrial Smart Sensor Module

Modular industrial sensor with embedded processing and wireless connectivity

Explore Specs →
Surface Mount Resistor

Passive electronic component for current limiting and voltage division in circuits

Explore Specs →

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 Specifications verified by CNFX Industrial Index (v2.6.03) for Computer, Electronic and Optical Product Manufacturing sector.

Get Quote for Focusing Helix

Request technical pricing, lead times, or customized specifications for Focusing Helix directly from verified manufacturing units.

Your business information is encrypted and only shared with verified Focusing Helix suppliers.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Thank you! Your message has been sent. We'll respond within 1–3 business days.

Need to Manufacture Focusing Helix?

Connect with verified factories specializing in this product category

Add Your Factory Contact Us
Previous Product
Focal Track
Next Product
Focusing Lens Mount