Structured Manufacturing Data (2026)

Rotation Bearing

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Rotation Bearing 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 Rotation Bearing is characterized by the integration of Inner Ring and Outer Ring. In industrial production environments, manufacturers listed on CNFX commonly emphasize Bearing steel (e.g., GCr15/52100) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A mechanical component that supports rotational motion and reduces friction between moving parts in a rotary base assembly.

Product Specifications

Technical details and manufacturing context for Rotation Bearing

Definition
A critical component within a Rotary Base system that enables smooth, controlled rotational movement by supporting radial and axial loads while minimizing friction. It serves as the interface between stationary and rotating elements, ensuring precise alignment and efficient power transmission in various industrial applications.
Working Principle
Utilizes rolling elements (balls or rollers) between inner and outer rings to convert sliding friction into rolling friction, allowing smooth rotation with minimal resistance. The bearing distributes loads evenly across its contact surfaces while maintaining structural integrity during operation.
Common Materials
Bearing steel (e.g., GCr15/52100), Stainless steel, Ceramic (for specialized applications)
Technical Parameters
  • Inner diameter, outer diameter, and width dimensions that determine bearing size and load capacity (mm) Per Request
Components / BOM
  • Inner Ring Part
    Attaches to the rotating shaft and provides raceway for rolling elements
    Material: Bearing steel
  • Outer Ring Part
    Fits into housing and provides stationary raceway for rolling elements
    Material: Bearing steel
  • Rolling Elements Part
    Balls or rollers that reduce friction by rolling between rings
    Material: Bearing steel or ceramic
  • Cage/Retainer Part
    Separates and guides rolling elements, maintaining proper spacing
    Material: Steel, brass, or polymer

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rotation Bearing.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max 50 MPa static, 30 MPa dynamic
other spec: Max rotational speed: 5000 RPM, Load capacity: 100 kN radial, 50 kN axial
temperature: -40°C to +120°C (standard), up to +200°C with special materials
Media Compatibility
✓ Lubricated steel-on-steel systems ✓ Clean hydraulic oil environments ✓ Dry inert gas atmospheres
Unsuitable: High-concentration abrasive slurry with particulates >50 microns
Sizing Data Required
  • Shaft diameter and required clearance
  • Radial and axial load requirements
  • Operating speed and duty cycle

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue spalling
Cause: Cyclic loading beyond material endurance limit, leading to subsurface crack initiation and propagation to surface, often due to improper preload, misalignment, or excessive vibration.
Lubrication failure
Cause: Inadequate or contaminated lubricant causing metal-to-metal contact, resulting in overheating, scoring, and accelerated wear; common causes include incorrect lubricant type, insufficient quantity, or ingress of contaminants like water or particles.
Maintenance Indicators
  • Abnormal audible noise (grinding, screeching, or rumbling) during operation
  • Excessive vibration or temperature rise detected by monitoring equipment
Engineering Tips
  • Implement precision alignment during installation and periodic checks to minimize radial/axial loads and prevent premature fatigue
  • Establish a proactive lubrication regime with proper grease type/quantity, contamination control, and scheduled re-lubrication based on operating conditions

Compliance & Manufacturing Standards

Reference Standards
ISO 492:2014 (Rolling bearings - Radial bearings - Tolerances) ANSI/ABMA 20:2015 (Radial Bearings of Ball, Cylindrical Roller, and Spherical Roller Types - Metric Design) DIN 620-1:2018 (Rolling bearings - Tolerances - Part 1: Terms and definitions)
Manufacturing Precision
  • Bore diameter tolerance: +/-0.01mm for precision class P6
  • Radial runout tolerance: 0.005mm for high-precision applications
Quality Inspection
  • Vibration analysis test for noise and smoothness
  • Hardness testing (Rockwell C scale) for material integrity

Factories Producing Rotation Bearing

Manufacturer profiles with relevant production capability in China

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

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 materials are rotation bearings typically made from for machinery applications?

Rotation bearings for machinery manufacturing are commonly made from bearing steel (like GCr15/52100) for general applications, stainless steel for corrosion resistance, and ceramic for specialized high-performance or extreme environment applications.

What are the main components in a rotation bearing's bill of materials?

The standard BOM includes: cage/retainer to separate rolling elements, inner ring, outer ring, and rolling elements (balls or rollers) that facilitate smooth rotational motion between the rings.

How do rotation bearings reduce friction in rotary base assemblies?

Rotation bearings minimize friction by using precisely engineered rolling elements between inner and outer rings, allowing smooth rotational motion while distributing loads efficiently, which reduces wear and energy consumption in machinery.

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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