What type of information does the ABMA code number on an anti-friction bearing provide?

The ABMA (Anti-Friction Bearing Manufacturers Association) code number on an anti-friction bearing primarily indicates the type and construction of the bearing. This code assists in identifying the specific design features, internal constructions, and intended use of the bearing, which helps ensure that it matches the requirements of specific applications.

Understanding the ABMA code allows users to select appropriate bearings for their machinery based on factors like load capacity, operating speeds, and environmental conditions. This information is critical for ensuring optimal performance and longevity of the bearing in various operational contexts.

The other answer choices relate to important aspects of bearings but do not accurately represent the primary purpose of the ABMA code. For example, while material composition can affect the bearing's performance, it is not specified by the ABMA code. Similarly, size and weight capacity, as well as application suitability, are essential considerations when selecting bearings, but they are not directly indicated by the ABMA code number itself. This specificity makes understanding the ABMA code crucial for selecting the right bearing for any given application.