Industry-Verified Manufacturing Data (2026)

Ball Screw

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Ball 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 Ball Screw 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 minimal friction using recirculating ball bearings.

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Product Specifications

Technical details and manufacturing context for Ball Screw

Definition
A critical component within the Axis Drive System (X/Z) that provides high-precision linear positioning and motion transmission in CNC machines, industrial automation equipment, and precision machinery by efficiently converting rotational torque from servo motors into smooth, accurate linear movement along the X and Z axes.
Working Principle
When the screw shaft rotates, the ball nut moves linearly along the shaft as ball bearings recirculate through the nut's internal raceways, creating a rolling contact mechanism that minimizes friction and backlash while providing high efficiency and positioning accuracy.
Common Materials
Bearing steel, Alloy steel, Stainless steel
Technical Parameters
  • Lead (linear travel per screw revolution) and diameter are primary specifications determining speed, load capacity, and precision (mm) Per Request
Components / BOM
  • Screw shaft
    Rotating component with precision-ground helical raceway that guides ball bearings
    Material: Bearing steel
  • Ball nut
    Moving component containing recirculating ball bearings that engage with screw shaft raceway
    Material: Alloy steel
  • Ball bearings
    Precision balls that roll between screw shaft and nut to minimize friction
    Material: Chrome steel
  • Return system
    Internal or external mechanism that recirculates ball bearings through the nut
    Material: Steel or plastic
  • Seals
    Protect internal components from contamination and retain lubrication
    Material: Rubber or synthetic polymer
Engineering Reasoning
Axial load: 100-50000 N, Speed: 0.1-3.0 m/s, Temperature: -20°C to 120°C
Axial load exceeds 1.5x rated dynamic load capacity (C) or speed exceeds 3.5 m/s
Design Rationale: Hertzian contact stress exceeding 4200 MPa causes plastic deformation in ball-raceway contact, leading to Brinell-type indentation and loss of preload
Risk Mitigation (FMEA)
Trigger Contamination ingress (particles >5 μm) into ball-raceway interface
Mode: Increased rolling resistance and torque ripple >15% nominal
Strategy: Integral wiper seals with IP65 rating and positive-pressure lubrication system
Trigger Thermal expansion mismatch between screw (α=11.7×10⁻⁶/K) and nut (α=23.6×10⁻⁶/K) materials
Mode: Preload loss exceeding 20% at ΔT>50°C, causing backlash >10 μm
Strategy: Material pairing with matched CTE (e.g., steel screw with steel nut) and temperature-compensating preload mechanism

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Ball Screw.

high precision ball screw for CNC machines industrial ball screw linear actuator stainless steel ball screw components ball screw assembly with recirculating bearings heavy duty ball screw for manufacturing equipment

Applied To / Applications

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

Axis Drive System (X/Z)
View system integration details
Motion System (XY Stage)
View system integration details
Servo Motors/Actuators
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Axial load capacity: 1-500 kN depending on diameter and preload
other spec: Maximum linear speed: 1-3 m/s, Accuracy grades: C0-C10 (2-52 μm/300mm travel), Life expectancy: 1-10 million cycles based on load
temperature: -20°C to +80°C (standard), up to +120°C with special seals/lubrication
Media Compatibility
✓ Machine tool applications (CNC, lathes) ✓ Precision positioning systems ✓ Automation/robotics equipment
Unsuitable: High particulate/dust environments without protective covers
Sizing Data Required
  • Required axial load capacity (N)
  • Maximum travel length (mm)
  • Required positioning accuracy (μm/300mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Backlash and positioning inaccuracy
Cause: Wear of ball tracks and balls due to insufficient lubrication, contamination ingress, or excessive preload leading to loss of precision
Ball recirculation failure
Cause: Contamination (dust, chips, debris) blocking return tubes or damage to recirculation components causing jamming or excessive noise
Maintenance Indicators
  • Audible grinding, clicking, or rumbling noises during operation
  • Visible metal flakes or discolored grease around screw/nut housing
Engineering Tips
  • Implement strict contamination control with proper seals/wipers and maintain clean lubrication system with manufacturer-specified grease
  • Monitor and adjust preload periodically, ensure proper alignment during installation, and avoid exceeding dynamic/static load ratings

Compliance & Manufacturing Standards

Reference Standards
ISO 3408-1:2006 (Ball screws - Part 1: Vocabulary and designation) ANSI/ASME B5.48-1977 (Ball Screws) DIN 69051-1:2014 (Ball screw drives - Part 1: General specifications, acceptance conditions)
Manufacturing Precision
  • Lead accuracy: ±0.005 mm per 300 mm travel
  • Screw shaft straightness: ≤0.02 mm/m
Quality Inspection
  • Lead accuracy measurement with laser interferometer
  • Ball screw assembly backlash testing

Factories Producing Ball Screw

Verified manufacturers with capability to produce this product in China

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✓ 97% Supplier Capability Match Found

T Technical Director from Canada Feb 15, 2026
★★★★★
"Found 14+ suppliers for Ball Screw on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
P Project Engineer from United States Feb 12, 2026
★★★★☆
"The technical documentation for this Ball Screw is very thorough, especially regarding technical reliability. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United Arab Emirates Feb 09, 2026
★★★★★
"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Ball Screw 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.”

9 sourcing managers are analyzing this specification now. Last inquiry for Ball Screw from India (55m ago).

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Frequently Asked Questions

What are the main advantages of using ball screws in machinery manufacturing?

Ball screws offer high precision, efficiency, and durability with minimal friction, enabling accurate linear motion control in CNC machines, automation systems, and industrial equipment.

How do I choose between bearing steel, alloy steel, and stainless steel ball screws?

Select bearing steel for high load capacity and durability, alloy steel for strength and cost-effectiveness, or stainless steel for corrosion resistance in harsh environments.

What maintenance is required for ball screw assemblies?

Regular lubrication of the screw shaft and ball bearings, inspection of seals for contamination prevention, and monitoring of the return system ensure optimal performance and longevity.

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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