BEARING POST DESIGNATION
A bearing post designation is used to classify and standardize the various types of bearings. The designation consists of several component parts, each of which conveys information about the type and size of the bearing, its structure, and the purpose for which it has been designed.
Bearing post designation component parts vary depending on the manufacturer, with some companies using more component parts than others. Generally, bearing post designations typically consist of three parts:
* The first component part of a bearing post designation is the bearing type. This part typically identifies the type of bearing. Examples of bearing types include ball bearings, roller bearings, needle bearings, thrust bearings, and tapered roller bearings.
* The second component part of the post designation is the bearing bore diameter, which is usually made of the letter D followed by a numeric value indicating the bearing bore diameter in millimeters.
* The last component part of the post designation is the bearing internal bearing designation, which is usually either an alpha code or a series of numbers. This component part generally identifies the number of ball and/or roller rows, the configuration of the internal components, and the contact angle.
Examples of Bearing Post Designations
KOYO 6205D-2RS
The above post designation is for a KOYO deep groove ball bearing with a contact angle of 2RS and the following features: Bore diameter of 6205 (25mm); Internal configuration with two contact seals and grease lubrication; Bearing row count of one.
NSK 3216A
The above post designation is for an NSK angular contact ball bearing with the following features: Bore diameter of 3216 (80mm); Internal configuration with single row to accommodate radial loads; Bearing angle of 15 degrees, allowing it to accommodate greater radial and axial loads than a double row bearing.
IKO TA1220Z
The above post designation is for an IKO thrust angular contact bearing and the following features: Bore diameter of TA2120Z (12mm); Internal configuration with an angle of 15 degrees, allowing it to accommodate greater radial loads than a traditional ball bearing; Bearing row count of one.
Conclusion
Bearing post designations allow manufacturers and users to easily identify and standardize bearings, as well as communicate their features and capabilities. It is important to understand the components of a bearing post designation in order to correctly select the right bearing for an application.
