Industry-Verified Manufacturing Data (2026)

Ball Screws

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

A precision mechanical component that converts rotational motion into linear motion with minimal friction using recirculating ball bearings.

Product Specifications

Technical details and manufacturing context for Ball Screws

Definition
Ball screws are critical components within X-Y Gantry Systems, providing high-precision linear positioning and motion control. They consist of a screw shaft with helical grooves and a nut containing ball bearings that recirculate through the grooves, enabling smooth, efficient transmission of motion with high accuracy and repeatability.
Working Principle
When the screw shaft rotates, the ball bearings within the nut roll along the helical grooves, causing the nut to move linearly along the shaft. The recirculating ball mechanism minimizes friction and backlash, allowing for precise positioning and efficient power transmission.
Common Materials
High-carbon chromium bearing steel, Stainless steel
Technical Parameters
  • Lead (linear travel per screw revolution) and diameter are critical specifications (mm) Customizable
Components / BOM
  • Screw shaft
    Rotating component with helical grooves that guide ball bearings
    Material: High-carbon chromium bearing steel
  • Ball nut
    Houses recirculating ball bearings and moves linearly along screw shaft
    Material: High-carbon chromium bearing steel
  • Ball bearings
    Recirculating elements that reduce friction between screw and nut
    Material: Bearing steel
  • Return system
    Channels that guide balls back to starting point in recirculation path
    Material: Steel or plastic
Engineering Reasoning
Axial load capacity: 500-50000 N, Speed: 0.01-3.0 m/s, Temperature: -30°C to 120°C
Ball track fatigue at 10⁷ cycles under 90% of dynamic load rating, preload loss at 2-5 μm axial deflection
Design Rationale: Hertzian contact stress exceeding 3200 MPa causes subsurface fatigue cracks in ball tracks; thermal expansion mismatch between screw (11.7×10⁻⁶/K) and nut (23.0×10⁻⁶/K) creates preload loss
Risk Mitigation (FMEA)
Trigger Contaminant ingress (ISO 4406 >18/16/13) exceeding 5 μm particle size
Mode: Abrasive wear increasing torque >150% of nominal, positioning error >10 μm
Strategy: IP65 sealing with multi-labyrinth design, positive pressure purge at 0.2 bar
Trigger Lubrication starvation below 0.1 μm film thickness at ball-screw interface
Mode: Adhesive wear causing torque spikes >200%, temperature rise >80°C above ambient
Strategy: Forced oil-air lubrication at 0.05 ml/min per 100 mm travel, PTFE-coated balls

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Ball Screws.

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: 1 kN to 500 kN depending on diameter and preload
other spec: Maximum linear speed: 3 m/s, Positioning accuracy: ±0.005 mm to ±0.05 mm, Life expectancy: 10^6 to 10^7 revolutions at rated load
temperature: -30°C to +120°C (standard), up to +200°C with special seals/lubrication
Media Compatibility
✓ Machine tool slides and spindles ✓ Industrial automation equipment ✓ Precision medical devices
Unsuitable: High particulate environments without proper sealing (e.g., abrasive dust, metal chips)
Sizing Data Required
  • Maximum axial load (kN)
  • Required travel length (mm)
  • Desired positioning accuracy and repeatability (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Backlash and positioning inaccuracy
Cause: Wear of ball recirculation components, ball track deformation, or contamination leading to uneven ball movement and loss of preload.
Ball nut seizure or excessive friction
Cause: Lubrication failure (dry running, incorrect lubricant), ingress of abrasive contaminants, or misalignment causing uneven load distribution and overheating.
Maintenance Indicators
  • Audible grinding, clicking, or rumbling noises during operation
  • Visible metal flakes or discoloration in lubricant, or increased operating temperature
Engineering Tips
  • Implement strict contamination control: use proper seals, maintain clean lubrication systems, and ensure clean installation environments to prevent abrasive wear.
  • Establish a proactive lubrication regimen with manufacturer-recommended grease/oil, monitor lubricant condition regularly, and verify alignment during installation and after maintenance.

Compliance & Manufacturing Standards

Reference Standards
ISO 3408-1:2006 (Ball screws - Part 1: Vocabulary and designation) ANSI B5.48-1977 (Ball Screws) DIN 69051-1:2018 (Ball screw drives - Part 1: General characteristics and acceptance conditions)
Manufacturing Precision
  • Lead accuracy: ±0.01 mm/300 mm
  • Radial runout: ≤0.02 mm
Quality Inspection
  • Hardness testing (Rockwell C scale)
  • Dimensional verification with coordinate measuring machine (CMM)

Factories Producing Ball Screws

Verified manufacturers with capability to produce this product in China

✓ 96% Supplier Capability Match Found

P Project Engineer from Australia Jan 09, 2026
★★★★★
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Ball Screws meets all ISO standards."
Technical Specifications Verified
S Sourcing Manager from Singapore Jan 06, 2026
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Ball Screws arrived with full certification."
Technical Specifications Verified
P Procurement Specialist from Germany Jan 03, 2026
★★★★★
"Great transparency on the Ball Screws components. Essential for our Machinery and Equipment Manufacturing supply chain."
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.”

14 sourcing managers are analyzing this specification now. Last inquiry for Ball Screws from USA (23m ago).

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Frequently Asked Questions

What materials are commonly used in ball screw manufacturing?

Ball screws are typically manufactured from high-carbon chromium bearing steel for durability or stainless steel for corrosion resistance in harsh environments.

How do ball screws convert rotational motion to linear motion?

Ball screws use recirculating ball bearings between the screw shaft and ball nut to efficiently convert rotational force into precise linear movement with minimal friction.

What are the main components in a ball screw assembly?

Key components include the screw shaft, ball nut, ball bearings, and return system that circulates the balls through the assembly for continuous operation.

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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