Industry-Verified Manufacturing Data (2026)

Fine-Pitch Lead Screw

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Fine-Pitch Lead Screw used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Fine-Pitch Lead Screw is characterized by the integration of Screw Shaft and Nut. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision mechanical component that converts rotational motion into linear motion with high resolution and accuracy.

Product Specifications

Technical details and manufacturing context for Fine-Pitch Lead Screw

Definition
A fine-pitch lead screw is a critical component within micro-adjustment mechanisms, designed to provide precise linear positioning through small, controlled rotational inputs. Its fine thread pitch enables minute adjustments, making it essential in applications requiring high precision and minimal backlash.
Working Principle
When the screw rotates, the engaged nut moves linearly along the screw's axis. The fine thread pitch reduces linear travel per revolution, allowing for highly precise positioning control. This is typically driven by a stepper or servo motor in automated systems.
Common Materials
Stainless Steel, Alloy Steel, Bronze (for nuts)
Technical Parameters
  • Lead (linear travel per revolution), typically ranging from 0.5mm to 2mm for fine-pitch applications (mm) Standard Spec
Components / BOM
  • Screw Shaft
    Primary threaded component that rotates to create linear motion
    Material: Stainless Steel or Alloy Steel
  • Nut
    Engages with screw threads to convert rotational motion to linear movement
    Material: Bronze or Polymer Composite
  • Support Bearings
    Provide axial and radial support to minimize deflection and vibration
    Material: Steel with Ceramic or Polymer Balls
Engineering Reasoning
0.1-100 N·m torque, 0.01-1.0 m/s linear velocity, -20°C to 80°C ambient temperature
Buckling at 120 N·m compressive load, thread shear at 150 N·m torque, 0.5 mm backlash threshold
Design Rationale: Euler buckling instability under axial compression, Hertzian contact stress exceeding 800 MPa at thread interface, thermal expansion mismatch (Δα=12×10⁻⁶ K⁻¹) causing binding
Risk Mitigation (FMEA)
Trigger Lubricant starvation (viscosity < 68 cSt at 40°C)
Mode: Galling at thread interface (coefficient of friction > 0.15)
Strategy: Integrated wick-fed lubrication reservoir with 316 stainless steel wicks
Trigger Misalignment exceeding 0.05° angular deviation
Mode: Premature wear at thread root (wear rate > 0.01 mm/1000 cycles)
Strategy: Self-aligning spherical bearing mounts with ±0.5° compensation

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Fine-Pitch Lead Screw.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Axial load capacity: 100N to 20kN depending on diameter and material
other spec: Lead accuracy: ±0.005mm per 300mm travel, max linear speed: 1.5m/s, backlash: <0.01mm
temperature: -40°C to 120°C (standard materials), up to 250°C with high-temp alloys
Media Compatibility
✓ Clean dry air environments ✓ Lubricated mechanical systems ✓ Precision positioning equipment
Unsuitable: Abrasive particulate environments without protective seals
Sizing Data Required
  • Required linear force (N)
  • Travel length (mm)
  • Required positioning resolution (mm/revolution)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thread wear and backlash
Cause: Insufficient lubrication leading to metal-on-metal contact, or contamination from abrasive particles causing accelerated wear
Lead screw bending or deformation
Cause: Excessive axial loads beyond design limits, or improper alignment causing uneven stress distribution
Maintenance Indicators
  • Audible grinding or clicking noises during operation
  • Visible metal shavings or discoloration around the screw threads
Engineering Tips
  • Implement regular lubrication schedules with appropriate high-viscosity grease, and install protective bellows to prevent contamination
  • Conduct periodic alignment checks and install load monitoring sensors to prevent overloading beyond design specifications

Compliance & Manufacturing Standards

Reference Standards
ISO 3408: Lead screws - Nominal diameters and pitches ANSI B5.48: Ball and Lead Screws DIN 103: Trapezoidal screw threads - General plan
Manufacturing Precision
  • Lead accuracy: ±0.005 mm per 300 mm
  • Thread profile deviation: ±0.02 mm
Quality Inspection
  • Lead error measurement using laser interferometer
  • Surface roughness verification per ISO 4287

Factories Producing Fine-Pitch Lead Screw

Verified manufacturers with capability to produce this product in China

✓ 95% Supplier Capability Match Found

T Technical Director from Brazil Jan 02, 2026
★★★★★
"The technical documentation for this Fine-Pitch Lead Screw is very thorough, especially regarding technical reliability."
Technical Specifications Verified
P Project Engineer from Canada Dec 30, 2025
★★★★☆
"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Fine-Pitch Lead Screw so far. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United States Dec 27, 2025
★★★★★
"Testing the Fine-Pitch Lead Screw now; the technical reliability results are within 1% of the laboratory datasheet."
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.”

6 sourcing managers are analyzing this specification now. Last inquiry for Fine-Pitch Lead Screw from Mexico (1h ago).

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Frequently Asked Questions

What are the main advantages of fine-pitch lead screws?

Fine-pitch lead screws provide high resolution and accuracy in converting rotational motion to linear motion, making them ideal for precision applications in machinery manufacturing where tight tolerances are required.

What materials are available for fine-pitch lead screws?

Our fine-pitch lead screws are available in stainless steel and alloy steel for the screw shaft, with bronze options for the nuts to ensure smooth operation and durability in demanding industrial environments.

What components are included in a complete fine-pitch lead screw assembly?

A complete assembly includes the screw shaft, nut, and support bearings. These components work together to provide stable, precise linear motion with minimal backlash and high load capacity.

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.

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