The quantity of different bearing part numbers can be overwhelming. ISO has a standardized numbering system that is helpful for standard parts.
However, there are a number of special bearing part numbers that have been in use for years.
Here’s one example, used by the Andrews / INA Corp. for thrust bearings in an inch series…
This was taken from INA catalog, no copyright infringement intended.
We have manufactured many bearings that were originally described using this special numbering system. Please note that it does not give enough information to create an interchange. A sample or more detailed description is normally needed.
Call us at 315-986-7600 if you have a need for a custom thrust bearing, or other hard to obtain ball or roller bearing.