Quality Standards
Quality procedures and certifications in accordance with international standards
Zero-Defect Approach
As KRV Metal, we adopt the "Zero-Defect" philosophy. Every bearing is individually tested before leaving the production line, and no product that does not meet our quality criteria reaches our customers.
This approach goes beyond ISO quality standards and provides extra assurance to our customers. Most of the world's major manufacturers do not perform 100% testing - we do.
Zero-Defect Production
Our quality management system complies with international standards. Every product of ours passes individual tests before reaching our customers. With our ISO certifications and professional procedures, we deliver quality to European standards.
International Standards
Our quality management system is certified with international standard compliance documents
ISO 9001:2015
Quality Management System
ISO 14001
Environmental Management System
ISO 45001
Occupational Health and Safety
CE Mark
European Conformity Certificate
Quality Processes
Industry standards applied for professional customers
PPAP
Production Part Approval Process
With the production part approval process, we document that new products meet customer requirements. All documentation is prepared in standard format.
FMEA
Failure Mode and Effects Analysis
With failure mode and effects analysis, we identify potential problems before production and take preventive actions.
MSA
Measurement System Analysis
With measurement system analysis, we regularly verify the reliability of our test and measurement equipment.
SPC
Statistical Process Control
With statistical process control, we minimize production variations and ensure consistent quality.
Quality Control Laboratory
Our laboratory equipped with advanced measurement devices and test equipment
Dimensional Control
Precise micron-level measurements are performed with coordinate measuring machines (CMM)
Surface Roughness
Surface quality analysis and Ra value measurement are performed with profilometer
Hardness Testing
Material hardness control is performed using Rockwell and Vickers methods
Metallurgical Analysis
Microstructure examination and material composition verification operations are performed
Tolerance Classes
Tolerance standards applied to deep groove ball bearings
| Parameter | P0 (Normal) | P6 | P5 |
|---|---|---|---|
| Inner Bore Tolerance | 0 / -8 Β΅m | 0 / -7 Β΅m | 0 / -5 Β΅m |
| Outer Diameter Tolerance | 0 / -9 Β΅m | 0 / -7 Β΅m | 0 / -5 Β΅m |
| Radial Runout | β€ 15 Β΅m | β€ 10 Β΅m | β€ 5 Β΅m |
| Axial Runout | β€ 15 Β΅m | β€ 8 Β΅m | β€ 5 Β΅m |
Review Our Quality Certificates
Request copies of our certifications and quality reports
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