Just to clarify - are you saying the Timken bearings are counterfeit because they were not made in the USA?
If that is the reason, then you should be aware that, while Timken has manufacturing facilities in the USA, they also have manufacturing facilities in Mexico and Romania. If the Timken manufacturing facilities are in 3 different countries, it would make sense that they do not manufacture all types of their product in every country where they have facilities. Like many other manufacturing businesses that produce many different sizes and types of a precision product, they probably manufacture some different sizes or types in each of the 3 countries, but all are officially Timken products and are available worldwide. The Timken bearings made in Mexico and Romania are just as much real Timken bearings as those made in USA. Also, Timken has manufacturing facilities in Eastern Europe which may, or may not, be in the European Union or use that location to define their geographical source. Not all countries located in Eastern Europe are members of the European Union.
If that is not the reason that you are saying some of the Timken bearings are counterfeit, then bearings coming from some country not USA, Mexico, or Romania would mean that Timken could be sourcing some of the different sizes from other manufacturers and selling them under the Timken name. I see nothing wrong with them doing that, so long as the bearings are within the standards of Timken made products. Many precision products which were formerly manufactured in the USA are now sourced from other countries and still sold under the long time USA brand name. With the constant mergers, acquisitions, and changes in import/export laws, it is more and more difficult to find a long time established USA brand name that does not have sources or facilities in other countries where the same products can be supplied for a much lower cost.
I am not an expert on Timken Bearings, but I did work in an International Mining Company machine shop where we tore down all types of mining and manufacturing equipment and rebuilt it. A lot of the equipment we repaired was no longer manufactured at all, or had been replaced in the manufacturing process by different equipment in the more modernized facilities. Ordering replacement bearings was first attempted using the bearing maker name and the stamped numbers on the old bearings. If that failed, the bearings were measured and the required size was used to locate replacement bearings of some other brand name. Some of the parts, such as gears, flywheels, spacers, etc. had up to a 5 year back order time, and had to be cannibalized from scrap yard equipment or custom ordered as one off gears, etc, if we did not have the proper machinery to manufacture a new one in the local shop.