IKO Machined Type Needle Roller Bearings are bearings with a low cross sectional height and large load ratings. The outer ring has stable, high rigidity and can be used even for light alloy housings. These bearings are available in metric series and inch series, both of which include a caged type and full complement type. They are suitable for a wide range of conditions including heavy load with either high-speed or low-speed rotation. In addition, bearings are available with or without an inner ring. The type without an inner ring uses a shaft as the raceway surface, making the design compact.