Industry-Verified Manufacturing Data (2026)

Ball screw or linear actuator

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Ball screw or linear actuator 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 Ball screw or linear actuator is characterized by the integration of Screw shaft and Ball nut. In industrial production environments, manufacturers listed on CNFX commonly emphasize Bearing steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision mechanical component that converts rotary motion into linear motion with high efficiency and accuracy.

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Product Specifications

Technical details and manufacturing context for Ball screw or linear actuator

Definition
A critical drive component within X-Axis Rails & Drive systems that provides precise linear positioning and movement control by translating the rotational force from a motor into smooth, accurate linear displacement along the rail axis.
Working Principle
Utilizes recirculating ball bearings that roll between the screw shaft and nut, minimizing friction and converting rotational torque into linear force with high mechanical efficiency and positional accuracy.
Common Materials
Bearing steel, Alloy steel, Stainless steel
Technical Parameters
  • Lead (linear travel per screw revolution) and diameter are critical specifications determining speed, load capacity, and precision. (mm) Per Request
Components / BOM
  • Screw shaft
    Rotating component with helical raceway that drives the ball nut
    Material: Hardened alloy steel
  • Ball nut
    Contains recirculating ball bearings that engage with screw raceway
    Material: Bearing steel
  • Ball bearings
    Precision balls that roll between screw and nut to reduce friction
    Material: Chrome steel
  • Return system
    Channels that recirculate balls through the nut assembly
    Material: Steel or plastic
Engineering Reasoning
0.1-100 kN axial load, -20°C to 120°C temperature, 0.01-10 m/s linear velocity
Ball fatigue life L10=1×10^6 revolutions at 33.3 kN dynamic load, 0.003 mm/300 mm lead accuracy degradation, 90°C preload nut temperature
Design Rationale: Hertzian contact stress exceeding 4200 MPa causes subsurface fatigue spalling; thermal expansion mismatch (α_steel=11×10^-6/°C, α_aluminum=23×10^-6/°C) induces binding at ΔT>70°C
Risk Mitigation (FMEA)
Trigger Contaminant ingress (ISO 4406:22/19/16) exceeding 5 μm particle size
Mode: Abrasive wear increasing rolling resistance coefficient from 0.002 to 0.008
Strategy: IP67-rated wiper seals with 0.5 mm labyrinth clearance and positive-pressure purge system
Trigger Misalignment exceeding 0.05 mm/m perpendicularity error
Mode: Edge loading causing localized Hertzian stress concentration factor Kt=2.3
Strategy: Self-aligning coupling with ±2° angular compensation and 0.02 mm radial float

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Ball screw or linear actuator.

precision ball screw linear actuator industrial ball screw components high efficiency linear motion actuator machinery manufacturing ball screw stainless steel ball nut assembly

Applied To / Applications

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

X-Axis Rails & Drive
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Not applicable (mechanical component, not fluid pressure)
other spec: Maximum axial load: 5-500 kN depending on size, Maximum speed: 1-3 m/s, Accuracy grade: C0-C10 per ISO 3408
temperature: -40°C to +120°C (standard), up to +200°C with special seals/lubrication
Media Compatibility
✓ Machine tool cutting fluids ✓ Industrial lubricants (grease/oil) ✓ Clean industrial air environments
Unsuitable: Abrasive particulate environments without protective covers
Sizing Data Required
  • Required axial load capacity (N)
  • Maximum travel length (mm)
  • Required positioning accuracy/repeatability (μm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Backlash and positioning error
Cause: Wear in ball nut or screw threads due to insufficient lubrication, contamination ingress, or excessive axial loads leading to loss of preload and dimensional accuracy.
Ball recirculation failure
Cause: Contamination (dust, chips, debris) blocking ball return channels, or mechanical damage to recirculation components causing jamming, noise, and eventual seizure.
Maintenance Indicators
  • Audible grinding, clicking, or irregular noise during operation indicating contamination or ball damage
  • Visible metal flakes or discolored grease around seals, signaling advanced wear or lubrication breakdown
Engineering Tips
  • Implement strict contamination control: Use wipers/scrapers, protective bellows, and ensure clean environment during installation and operation
  • Establish precision lubrication regimen: Use manufacturer-specified grease/oil, monitor intervals based on load/speed cycles, and verify proper distribution without over-greasing

Compliance & Manufacturing Standards

Reference Standards
ISO 3408-1:2019 (Ball screws - Part 1: Vocabulary and designation) ANSI/B5.48-1977 (Ball Screws) DIN 69051-1:2018 (Ball screw drives - Part 1: General characteristics, definitions, designation)
Manufacturing Precision
  • Lead accuracy: ±0.005 mm per 300 mm travel
  • Radial runout: ≤0.01 mm at mounting flange
Quality Inspection
  • Dye Penetrant Test for surface crack detection
  • Coordinate Measuring Machine (CMM) verification of geometric tolerances

Factories Producing Ball screw or linear actuator

Verified manufacturers with capability to produce this product in China

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✓ 97% Supplier Capability Match Found

P Procurement Specialist from Canada Feb 12, 2026
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Ball screw or linear actuator arrived with full certification."
Technical Specifications Verified
T Technical Director from United States Feb 09, 2026
★★★★★
"Great transparency on the Ball screw or linear actuator components. Essential for our Machinery and Equipment Manufacturing supply chain."
Technical Specifications Verified
P Project Engineer from United Arab Emirates Feb 06, 2026
★★★★★
"The Ball screw or linear actuator we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."
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.”

10 sourcing managers are analyzing this specification now. Last inquiry for Ball screw or linear actuator from Turkey (40m ago).

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Frequently Asked Questions

What are the main components of a ball screw actuator?

The main components include the screw shaft, ball nut, ball bearings, and return system, which work together to convert rotary motion into precise linear movement.

What materials are commonly used in ball screw manufacturing?

Ball screws are typically made from bearing steel, alloy steel, or stainless steel, chosen for their durability, strength, and corrosion resistance in industrial applications.

How does a ball screw achieve high precision in linear motion?

Ball screws use recirculating ball bearings between the screw shaft and nut, minimizing friction and backlash to provide accurate, efficient linear positioning with repeatable results.

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 Machinery and Equipment Manufacturing sector.

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