BS ISO 19843:2018 - Rolling Bearings: Ceramic Bearing Balls Strength Test

Discover the essential standard for evaluating the strength of ceramic bearing balls with the BS ISO 19843:2018. This comprehensive document provides detailed guidelines and methodologies for determining the strength of ceramic bearing balls through the notched ball test, ensuring reliability and performance in various applications.

Overview

The BS ISO 19843:2018 standard is a crucial resource for professionals in the field of mechanical engineering, materials science, and quality assurance. Released on October 11, 2018, this standard is designed to provide a consistent and reliable method for assessing the strength of ceramic bearing balls, which are integral components in many mechanical systems.

Key Features

• Standard Number: BS ISO 19843:2018
• Pages: 40
• ISBN: 978 0 580 93529 9
• Status: Standard

Why Choose BS ISO 19843:2018?

Ceramic bearing balls are known for their exceptional hardness, low density, and high resistance to wear and corrosion. These properties make them ideal for use in high-performance applications such as aerospace, automotive, and industrial machinery. However, to ensure their reliability and longevity, it is crucial to accurately assess their strength. The BS ISO 19843:2018 standard provides a rigorous testing method that helps manufacturers and engineers verify the quality and durability of ceramic bearing balls.

Benefits of the Notched Ball Test

The notched ball test, as outlined in this standard, offers several advantages:

• Precision: The test provides precise measurements of the strength of ceramic bearing balls, allowing for accurate quality control.
• Consistency: By following a standardized method, manufacturers can ensure consistent results across different batches and production runs.
• Reliability: The test helps identify potential weaknesses in ceramic bearing balls, reducing the risk of failure in critical applications.

Applications

The BS ISO 19843:2018 standard is applicable to a wide range of industries and applications, including:

• Aerospace: Ensuring the reliability of components in aircraft engines and systems.
• Automotive: Enhancing the performance and durability of bearings in vehicles.
• Industrial Machinery: Improving the efficiency and lifespan of machinery used in manufacturing and production.

Comprehensive Guidance

With 40 pages of detailed information, the BS ISO 19843:2018 standard provides comprehensive guidance on conducting the notched ball test. It includes step-by-step instructions, technical specifications, and best practices to ensure accurate and reliable results. Whether you are a manufacturer, engineer, or quality assurance professional, this standard is an invaluable resource for maintaining the highest standards of quality and performance.

Conclusion

Invest in the BS ISO 19843:2018 standard to enhance the quality and reliability of your ceramic bearing balls. By adhering to this internationally recognized standard, you can ensure that your products meet the highest levels of performance and safety. With its detailed methodologies and comprehensive guidance, this standard is an essential tool for anyone involved in the production or testing of ceramic bearing balls.

BS ISO 19843:2018

This standard BS ISO 19843:2018 Rolling bearings. Ceramic bearing balls. Determination of strength by notched ball test is classified in these ICS categories:

• 21.100.20 Rolling bearings

This document specifies a method for the determination of the strength of finished ceramic balls for ball bearings, preferably made of silicon nitride (Si₃N₄), with ball diameters from 3 mm to 50 mm.

NOTE 1 ISO 26602 specifies the requirements for preprocessed silicon nitride materials for rolling bearing balls. ISO 3290‑2 specifies requirements for finished silicon nitride balls for rolling bearings.

NOTE 2 Other test methods to determine ceramic ball strength can be found in Reference [7].

The results of the strength tests slightly depend on the Poisson's ratio. For this reason, all calculations are restricted to a Poisson's ratio ranging from 0,15 to 0,35. This includes the Poisson's ratio of a typical silicon nitride ceramic used as rolling element in ball bearings.

The method can also be used for rolling bearing balls made of other ceramic materials, but the reported prefactors may not be valid.

NOTE 3 Poisson’s ratio of isotropic materials can be determined by one of the methods given in ISO 17561.

Because of the (defect controlled) brittle fracture behaviour of ceramic materials, a significant scatter of individual results in the characterization of a series of nominally identical samples can occur.

NOTE 4 A further statistical analysis according to ISO 20501 can be carried out.