i recently purchased bearings for my industrial machinery and was impressed with the NTN Bearing's quality .As my tests showed these bearings have exemplary durability, allowing my machines to run smoothly without any issues. The product is American-made, so I was confident that I was getting a top-quality item. The only downside is that it is a bit expensive compared to other products in the market. Nevertheless, I would recommend the NTN bearings to anyone in need of reliable bearings to keep their industrial and scientific machines running smoothly..