In the previous articles, I have introduced many types of INA bearings. Now, I’d like to introduce INA four-point contact bearings which are also very popular around the world. INA Four point contact bearings are single row angular contact ball bearings and therefore require significantly less space in an axial direction than double row designs. Let’s see the structure of INA four point contact bearings. These bearings consist of solid outer rings, split inner rings and ball and cage assemblies with brass or polyamide cages. The halves of the inner ring are matched to the specific bearing and must not be interchanged with those of bearings of the same size. The outer ring with the ball and cage assembly can be fitted separately from the halves of the inner ring. China BEST Bearing is the esteemed distributor of INA bearings for decades. We purchased a great many of INA bearings in the warehouse every month. If you have any requirements for them, please feel free to contact me.