Can I contact factories directly on CNFX?

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

Rolling Elements (Balls) Component – Motor Vehicle Manufacturing

Component Specifications

Definition

Rolling elements, specifically balls, are precision-engineered spherical components within release bearings that facilitate rotational motion by reducing friction between moving parts. They transmit radial and axial loads while maintaining precise alignment between bearing races, ensuring efficient power transmission in clutch systems.

Working Principle

Rolling elements operate on the principle of rolling contact mechanics, where spherical balls rotate between inner and outer bearing races, converting sliding friction into rolling friction. This reduces energy loss, minimizes wear, and distributes mechanical loads evenly across contact surfaces.

Materials

High-carbon chromium steel (AISI 52100/SUJ2), stainless steel (AISI 440C), ceramic (silicon nitride Si3N4), or hybrid combinations. Surface hardness: 58-65 HRC. Precision grinding to Grade 3-10 per ISO 3290.

Technical Parameters

Sphericity ≤0.0005mm
Load Capacity Dynamic: 2-15kN, Static: 1-8kN
Surface Roughness Ra ≤0.01μm
Temperature Range -40°C to +150°C
Diameter Tolerance ±0.001mm to ±0.005mm

Standards

ISO 3290, DIN 5401, ABMA/ANSI B3.12

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rolling Elements (Balls).

Parent Products

This component is used in the following industrial products

Release Bearing

A bearing that disengages the clutch by moving the pressure plate away from the friction disc.

View Product Details

Engineering Analysis

Risks & Mitigation

Brinelling from shock loads
Spalling due to material fatigue
Corrosion in harsh environments
Contamination-induced wear

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction leading to overheating and seizure
Mitigation: Implement automated lubrication monitoring systems and use high-temperature grease

Trigger: Material impurities in steel
Failure: Surface pitting and premature spalling
Mitigation: Apply vacuum degassing during steel production and implement 100% magnetic particle inspection

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Grade 10 to Grade 3 per ISO 3290 (0.00025mm to 0.0025mm diameter variation)

Test Method

Coordinate measuring machine (CMM) verification, surface roughness testing, hardness testing (Rockwell C), and fatigue life testing per ISO 281

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

Isolation Monitor

An automotive BMS component that continuously monitors electrical isolation between high-voltage battery systems and vehicle chassis to prevent electric shock hazards.

Balancing Circuit

Electronic circuit in automotive BMS that equalizes voltage across battery cells to optimize performance and lifespan.

Communication Transceiver

A bidirectional communication transceiver for automotive BMS enabling data exchange between battery cells and control units.

Enclosure

Protective housing for automotive battery management systems ensuring safety, thermal management, and electromagnetic compatibility.

Frequently Asked Questions

What causes premature failure of rolling balls in release bearings?

Common causes include contamination (dirt/moisture), improper lubrication, excessive axial loads, material fatigue, and misalignment during installation.

Can ceramic balls replace steel balls in automotive release bearings?

Yes, ceramic balls offer advantages like higher temperature resistance, lower density, and corrosion resistance, but they require careful design considerations due to different elastic modulus and cost factors.

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.

Rolling Elements (Balls)