Insert bearings (Y-bearings) Insert bearings (SKF Y-bearings) are based on sealed deep groove ball bearings in the 62 and 63 series, but have a convex outer ring and in most cases an extended inner ring with a specific locking device, enabling quick and easy mounting onto the shaft.

Some SERIES insert bearing has two set screws on the inner race for securing to the shaft.  It has an cylindrical outer race that is pre-lubed and engineered for light duty use. This type bearing is self-aligning for the standard load capacity.Insert bearings are easily mounted bearings that reduce friction and carry loads. They have inner diameters larger than the shaft on which they are installed and do not need to be press-fit onto shafts like standard bearings. They require setscrews, locking collars, and tapered adapters to secure their position.