Our Live Centers are perfect for Turn Between Center Bushings. They are self-locking, with an adjustable bearing cap. It has three bearings, two rollers, and one needle. The ball bearings take axial loads, and the needle takes radial loads. The bearings are sealed into the housing unit. Our Live Centers are made of hardened steel, ground for high accuracy,  hardened to 61-65 Rockwell, with precise and high-quality bearings that are immersed.