Bearing number description
Bearing numbers are alphanumeric codes used to identify specific characteristics and dimensions of bearings. While the format can vary between manufacturers, bearing numbers typically convey information about the bearing’s type, size, series, and other relevant specifications. Here’s a breakdown of a typical bearing number and its description:
1. Prefix: The prefix consists of letters that indicate the type of bearing. Common prefixes include:
– “R” for inch series bearings
– “6” for deep groove ball bearings
– “NU” for cylindrical roller bearings
– “T” for thrust bearings
2. Suffixes: Suffixes are appended to the basic number to denote specific features, variants, or modifications of the bearing. These suffixes can indicate factors such as:
– Bearing clearance (e.g., C2, C3, C4)
– Bearing seals or shields (e.g., ZZ, 2RS)
– Bearing cage material (e.g., TN9 for glass fiber-reinforced polyamide)
– Special internal design or features (e.g., W for filling slot bearings)
3. Basic Number: The basic number follows the prefix and represents the bearing’s size and series. This number may not have a specific meaning across all manufacturers but is used for identification purposes within a particular product line.
4. Dimensional Details: Additional numbers or letters may indicate specific dimensional details such as bore diameter, outside diameter, width, or bore taper. These details may be included within the bearing number or provided separately in the manufacturer’s documentation.
Interpreting bearing numbers accurately requires reference to the manufacturer’s specifications and documentation, as the format and meaning can vary between manufacturers and bearing standards. Understanding bearing numbers is essential for selecting the correct bearings for specific applications and ensuring proper installation and performance.
About us
NSAR bearings management team of managers, engineers, and technical staff have 15 – 25 years experience. We supply customers with bearings not only produced in our own factory, but also produced in professional bearings plants designated by NSAR brand to meet customers’ different requirements, such as pillow block bearings,we have designated a factory in northern China, which has perfect testing equipment and can develop products to customer needs very rapidly. Miniature bearings are arranged in the factory in southern China, which has enjoyed a good reputation long term in producing miniature bearings.
NSAR, a professional deep groove ball bearings supplier in China, provides a broad variety of deep groove ball bearings with best customer service and quality assured. With more than 20 years deep groove ball bearings manufacture experience, our deep groove ball bearing has been exported to United States, Canada, Mexico, Brazil, Argentina.NSAR can satisfy your bulk deep groove ball bearing customization needs,We provide 6012 bearing and 6000 bearings series and 6200 bearings series and pillow block ball bearings and 6300 bearing,you can products download.