Can I contact factories directly on CNFX?

CNFX is an open directory. Each factory profile provides direct contact information.

Ball Bearings (Ball Screw only) Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

Ball bearings designed exclusively for integration with ball screw mechanisms, featuring optimized raceway geometry, precision-grade balls, and specialized seals to handle axial loads while maintaining rotational accuracy. These components enable high-efficiency transmission by minimizing rolling resistance and providing smooth linear motion in industrial automation systems.

Working Principle

Operates on the principle of recirculating ball bearings within a helical groove system. As the screw rotates, balls circulate through load-bearing raceways, transferring rotational force into precise linear movement with minimal backlash and high repeatability.

Materials

Bearing rings: Chrome steel (AISI 52100/SUJ2) or stainless steel (AISI 440C); Balls: Chrome steel (Grade 10-100) or ceramic (Si3N4); Retainers: Polyamide (PA66), steel, or brass; Seals: Nitrile rubber (NBR) or fluoroelastomer (FKM).

Technical Parameters

Mounting Press-fit or clamp-type
Lubrication Grease (ISO VG 32-68) or oil mist
Load Capacity Dynamic: 2-50 kN, Static: 1-25 kN
Operating Speed Up to 10,000 rpm
Precision Grade ABEC 3-7 (ISO P0-P4)
Temperature Range -30°C to +120°C

Standards

ISO 3408, ISO 492, DIN 69051, JIS B 1192

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Ball Bearings (Ball Screw only).

Parent Products

This component is used in the following industrial products

Ball Screw/Lead Screw

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

View Product Details

Engineering Analysis

Risks & Mitigation

Premature wear due to improper alignment
Contamination from inadequate sealing
Overheating from insufficient lubrication
Backlash accumulation from worn components

FMEA Triads

Trigger: Misalignment during installation
Failure: Uneven load distribution leading to premature wear
Mitigation: Use precision alignment tools and follow mounting procedures per ISO 3408

Trigger: Contaminant ingress through damaged seals
Failure: Abrasive wear and increased friction
Mitigation: Implement regular seal inspection and maintain clean operating environment

Trigger: Inadequate lubrication
Failure: Metal-to-metal contact causing overheating and seizure
Mitigation: Establish preventive maintenance schedule with proper lubricant selection

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Radial runout: ≤0.005 mm, Axial clearance: 0.002-0.015 mm

Test Method

ISO 15242 for vibration testing, ISO 492 for dimensional accuracy, manufacturer-specific endurance testing under axial load conditions

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.

Related Components

Inspection Frame

Structural support component in automated fabric inspection systems that holds cameras, sensors, and lighting for defect detection.

Machine Frame

The rigid structural foundation of a CNC wood router that provides stability, vibration damping, and precision alignment for cutting operations.

pH Sensor Assembly

Precision pH sensor assembly for automated monitoring and dosing systems in industrial applications

Load Cell Assembly

Precision load cell assembly for automated powder dispensing systems

Frequently Asked Questions

What distinguishes ball screw bearings from standard ball bearings?

Ball screw bearings feature optimized contact angles (typically 60°), specialized raceway profiles, and precision tolerances specifically designed to handle the axial loads and rotational dynamics of ball screw systems.

How often should ball screw bearings be lubricated?

Maintenance intervals depend on operating conditions: continuous operation requires lubrication every 1,000-2,000 hours, while intermittent use may extend to 5,000 hours. Always follow manufacturer specifications.

Can ball screw bearings be used in high-temperature applications?

Standard bearings operate up to 120°C. For higher temperatures (up to 250°C), specify special heat-resistant steels, ceramic balls, and high-temperature lubricants.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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.

Ball Bearings (Ball Screw only)