ICV World JSC 28/01/2021

Bearings play an important role, eliminating the impact that inevitably arises during machine operation. To perform well, Bearings need to meet specific technical standards to operate efficiently. Below are some common international standards to evaluate and ensure the uniformity of Bearings.

1. ISO (International Organization for Standardization)

This is the most widely and rigorous applied international standard, especially in the manufacturing industry. Bearings need to conform not only tolerances, dimensions, but also materials as well as performance and suitability for each device and environment.

In Vietnam, the organization that manages this standard is the General Department of Standards, Metrology and Quality under the management of the Ministry of Science, Technology and Environment. With this standard, the parts as well as the equipment are recognized not only in Vietnam but also in many countries around the world. However, ISO is not mandatory, only for customers’ trust in products.

2. ABMA (American Bearing Manufacturing)

ABMA sets forth for production equipment, especially equipment with the form of rolling and slip.

Eg. NSK bearing products must meet the ANSI / ABMA 19: 2-1994 standard, specifically, they must have the following requirements:

  • Being calculated in inch
  • Being designed exactly according to CL7C standards
  • Having safety bezel on the outer ring to ensure the best rotation
  • Having a pair of couplings in accordance with the manufacturer's specifications.

In particular, this standard also stipulates that Bearings must have standard rollers which work well in harsh and variable environments such as in the case of too high or too low temperature, pressure load, and high rotation speed... In these cases, rollers must have high technical standards, accuracy and ability to withstand the best abrasion.

3. DIN (Deutsch Industrie Norm)

This is one of the German standards, with many sub-standards, mainly in areas such as metrology, unit measuring devices, packaging, analysis and civil construction. This standard also includes regulations on standards for building materials, analysis of soil samples, corrosion resistance in the structure of test equipment, machines and equipment. Currently, bolts, fasteners, and Bearings are compliant with this standard when design and production.

4. JIS (Japanese Industrial Standard)

This is Japanese standards set for equipment to create standards and guidance on how to perform technical processes in industry, which are widely applied in many areas of the world, including Vietnam.

In addition, there are many other standards in the world, which are applied differently in each country, eg. BS standard - British standard, GB - Chinese standard, GOST - Russian standard. , TCVN - Vietnamese standards. No matter what standards and specifications they are classified in, the general purpose of them is to ensure Bearings are of tolerance and dimensional accuracy so that they are interchangeable in diverse machinery and industries.

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