Bearings inspection and verification service, inspection and verification of factories service

October 23, 2025

As the core component of mechanical systems, the quality of bearing products directly affects the operational performance and service life of the entire equipment. To ensure that bearing products meet industry standards and quality certification requirements, establishing a professional inspection process is of utmost importance. This article will systematically introduce the inspection standards, testing methods, and certification requirements for bearing finished products, providing a complete quality control guideline for enterprises.
I. Core Inspection and Certification Items for Bearing Finished Products
1. Dimensional Accuracy Inspection Certification
This is the main certification item for the inspection of bearing finished products.
By using the maximum closed contour analysis, the accuracy of the minimum circumscribed circle is verified.
The key certification indicators that affect the radial clearance of the bearing's operation
It directly relates to the assessment of the working performance and service life of the mainframe.
2. Rotation accuracy inspection certification
An important certification standard for the precision of bearing installation
The certification project closely related to the precision of precision coordinate boring machines and grinding machines
The key inspection indicators that affect the overall operational stability of the equipment
3. Radial clearance inspection certification
Special certification standards are formulated based on the differences in usage.
A certification system widely applied in quality control and product inspection
The core items that must be strictly controlled during the inspection of finished bearing products
4. Performance testing and certification
Rotational flexibility certification: Ensure smooth and unobstructed rotation
Vibration and noise control certification: Noise levels are verified using professional equipment.
Hardness characteristic certification: Ensuring high and uniform hardness standards
5. Remanent Magnetic Strength Inspection Certification
Special Inspection Certification for Electromagnetic Performance
Verification of the independence between the core and the coil
Compliance with the electromagnetic standards for mechanical components and the certification requirements
6. Surface Quality Inspection Certification
Professional Measurement Certification for Surface Roughness
Strict inspection of defects such as cracks and mechanical injuries
Certification of the standard process for reprocessing non-conforming products back to the factory
II. Certification System for Finished Bearing Inspection Methods
1. Modern Testing Technology Certification
Temperature Inspection Method Certification: Sensitive monitoring of bearing load, speed, and lubrication status
Acoustic emission testing certification: Advanced technology for real-time fault location and rapid response
Pressure wave inspection method certification: An advanced detection method for early fault detection
Vibration Diagnosis Technology Certification: Standardized Process for Periodic Pulse Signal Analysis
2. Traditional Inspection Method Evaluation
Analysis of the Limitations of Manual Touch and Auditory Judgments
Certification of Elimination Reasons in Modern Manufacturing Industry
The necessity of replacing professional detection equipment论证
III. Optimization Plan for Inspection and Certification System
1. Optimization of Quality Inspection Items for Certification
Based on differentiated certification standards for different bearing types and applications
Formulation and certification of scientifically effective quality inspection plans
Optimization certification for balancing measurement accuracy and cost
Professional assessment of the impact of processing techniques on quality characteristics
2. Certification of the testing method system
Certification of the evaluation criteria for selecting the optimal solution from the feasible options
Systematic integration of quality inspection methods, items and approaches
Continuous improvement certification to meet the development needs of the bearing industry
IV. Inspection and Certification Process Standards
1. Certification of Sampling Inspection Plan
Full inspection certification: Comprehensive inspection requirements for critical application scenarios
Sampling inspection certification: Scientific sampling plans based on statistical principles
Standardized certification of inspection cycles and judgment criteria
2. Equipment Certification for Testing
The regular calibration requirements for professional testing instruments
Standardized certification of temperature-sensitive equipment, acoustic emission equipment, and vibration analysis equipment
Verification system for the accuracy and reliability of detection data
3. Defect Level Determination Certification
Fatal Defect: Zero-tolerance standard for safety-critical applications
Serious defect: Main issue for reducing performance control
Minor Defects: Definition of the Acceptable Range for Appearance Defects
V. Key Control Matters for Factory Inspection Certification
To ensure that the quality of bearing products continuously meets the certification requirements, during the factory inspection process, the following matters need to be given priority attention:
Production process control certification: Develop operation specifications for key processes such as heat treatment and grinding.
System certification for inspection: Establish a complete quality monitoring and traceability system throughout the process
Equipment maintenance, calibration and certification: Regular calibration and maintenance of production and testing equipment
Personnel qualification management certification: Professional training and certification for inspection personnel for on-the-job work
Supplier quality certification: Quality assessment system for raw material suppliers
VI. Continuous Quality Improvement Certification
1. Regular Inspection Certification System
Establish a periodic inspection certification plan for bearings
Standard process for preventive maintenance inspection
Quality data statistical analysis and improvement measures
2. Packaging and Transportation Certification
Certification of the protective performance of the factory packaging
Quality assurance measures during transportation process
Standard certification for warehouse environment norms
Inspection and Certification Summary
The inspection and certification of bearing products is a highly technical and systematic process that requires comprehensive testing and verification of dimensions, rotational performance, and surface quality. By establishing a professional inspection process and strict quality standards, enterprises can ensure that bearing products meet industry certification requirements, providing reliable core component support for mechanical equipment.