Structured Manufacturing Data (2026)

Ball Screw

Based on aggregated insights from structured 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 Part
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 Part
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 Part
Protect internal components from contamination and retain lubrication

Material: Rubber or synthetic polymer

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Ball Screw.

Applied To / Applications

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

Axis Drive System (X/Z)

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Motion System (XY Stage)

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Servo Motors/Actuators

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Axis Drive System

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Industrial Ecosystem & Supply Chain Structure

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

Manufacturer profiles with relevant production capability in China

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

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

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 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 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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