Code Method for Rolling Bearings

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The bearing code is a standardized system used to identify and describe the design, dimensions, performance, and application of rolling bearings. It combines letters and numbers to provide detailed information about the bearing's structure, size, precision level, and functional characteristics. According to the Chinese national standard GB/T 272-1993, the bearing code typically consists of three main parts: the basic code, the prefix code, and the suffix code. The **basic code** represents the fundamental type, structure, and size of the bearing. This is the core part of the code and helps identify the general category of the bearing, such as deep groove ball bearings, angular contact bearings, or cylindrical roller bearings. The **prefix code** usually appears at the beginning of the code and is used to denote special features or modifications, such as a specific material, seal type, or internal design. These codes are often used when the bearing has unique properties that differ from the standard version. The **suffix code**, located at the end of the code, provides additional details regarding the bearing’s specifications, such as tolerance class, clearance, lubrication method, or sealing type. These codes help engineers and technicians select the most suitable bearing for a particular application. Understanding the bearing code is essential for proper selection, maintenance, and replacement of bearings in mechanical systems. It allows users to quickly identify key attributes of a bearing without needing to refer to extensive technical documentation.

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Related Bearing Knowledge:

• Bearing Material and Smooth Bearing (Part 2)
• NTN Bearing Data: Heat Treatment Techniques and Partial Pressure Determination
• Common Terms and Definitions for Y-Bearings
• Main Characteristics of Deep Groove Ball Bearings and Their Applications

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This article is sourced from http://www.chinabearing.net. Please visit the official website for more detailed information.

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