Bearing numbers play an important role in bearing classification. They provide at-a-glance information about typical use, durability, and suitability for a specific application. Regardless of the brand, or even a custom bearing, you can accurately identify the bearing you need if you understand the meaning of standard bearing numbers.
How to identify bearing numbers?
Basic Structure of Bearing Numbers
Take the NSAR radial ball bearing code ‘TS2- 6206 x1 LLB N C3 P5/2AS’ as an example: ‘TS2’ represents the prefix, meaning “Heat stabilized up to 320°F (160°C)”; ‘6206’ is the Basic Designation – Digit Identification of Bearing; ‘X1’, ‘LLB’, ‘C3’, ‘P5′, 2AS’ are the suffixes.
Bearing number identification
Identifying bearing numbers is essential for selecting the correct replacement or compatible bearing for a specific application. Here are steps to identify bearing numbers:
1. Examine the Bearing: Start by inspecting the bearing itself. Look for any markings, numbers, or symbols imprinted on the bearing’s outer surface, inner race, or cage. These markings often contain valuable information about the bearing’s dimensions, series, and other specifications.
2. Note Basic Dimensions: After the prefix, the numbers in the bearing code typically represent basic dimensions such as bore diameter, outer diameter, and width. These dimensions are crucial for identifying the bearing size and compatibility with mating components. Our bearings have been exported to the United States, Canada, Mexico, Brazil, Argentina. NSAR can meet your needs for customized mass bearings, special bearings and accessories such as needle roller bearings, spherical bearings and linear guides.
3. Identify Series Designations: Certain numbers or letters in the bearing number may denote series designations that classify bearings based on size, load-carrying capacity, or other characteristics. Examples include “6000 series” for standard deep groove ball bearings or specific series designations for tapered roller bearings.
4. Decode Prefixes:The prefix at the beginning of the bearing number usually indicates the type or design of the bearing. Common prefixes include:
– “6” for deep groove ball bearings.
– “NU” for cylindrical roller bearings.
– “T” for tapered roller bearings.
5. Consult Documentation: If the bearing number is unclear or incomplete, consult the bearing manufacturer’s documentation, catalogs, or websites. Manufacturers often provide detailed specifications, interchangeability charts, and technical support to help users identify bearing numbers accurately.
6. Utilize Online Resources: Numerous online platforms and forums cater to bearing identification and troubleshooting. Websites dedicated to bearings often feature tools or forums where users can submit photos or descriptions of bearings for identification assistance. Engaging with online communities or experts can provide valuable insights and assistance in deciphering bearing numbers.
7. Interpret Suffixes: Suffixes at the end of the bearing number provide additional information about features such as sealing, lubrication, clearance, or cage design. Examples include “RS” or “2RS” for rubber seals, “C3” for greater than normal radial clearance, or specific letters representing cage materials.
8. Seek Expert Advice: If you encounter difficulties in identifying bearing numbers or require assistance in selecting the right bearing, seek advice from bearing suppliers, distributors, or experienced professionals. They can offer expertise and guidance based on their knowledge of bearings and applications.
9. Use Cross-Referencing Tools: Utilize cross-referencing charts, databases, or online resources to find equivalent bearings from different manufacturers. These tools can help match bearing numbers, ensuring compatibility and ease of replacement.
10. Seek Manufacturer Support: If all else fails, reach out to the bearing manufacturer or authorized distributors for assistance. Provide them with any available information, such as photographs or physical measurements of the bearing, to aid in identification. Manufacturer support teams are equipped with expertise and resources to help resolve identification challenges and ensure accurate bearing selection.
11. Inspect Packaging or Documentation: If the bearing is still in its original packaging or accompanied by documentation, check for any printed information. Packaging labels or product inserts often contain details such as bearing type, dimensions, load ratings, and recommended applications. Reviewing this information can assist in identifying the bearing accurately.
12. Check Manufacturer’s Markings: Sometimes, bearings may have additional markings or labels from the manufacturer that provide important information. These markings may include the manufacturer’s logo, part number, batch code, or production date. Referencing these markings can help confirm the bearing’s identity and specifications.
13. Consider External Characteristics: In addition to numerical markings, consider the external characteristics of the bearing, such as its design, construction, and features. Factors like the presence of seals or shields, cage type, surface finish, and overall build quality can offer clues about the bearing’s type and intended application.
About us:
NSAR is a professional bearing supplier in China, providing mass production of various deep groove ball bearings, pillow block ball bearings, spherical roller bearings, and providing the best customer service and quality assurance, with the cleanest workshop and professional technical workers.
With more than 20 years of bearing manufacturing experience, you can download the product to view our product manual.