Machined Type Needle Roller Bearings are bearings with a small sectional height and large load rating. The outer ring has high rigidity and can easily be used even for light alloy housings. These bearings are available in metric and inch series, both of which have the caged type and full complement type. It is therefore possible to select suitable bearing for use under various conditions , Such as heavy load, and high speed or low speed rotations. In addition there are bearings without and with inner rings , They are also available with side sealing to protect from dust and other factors. Available in Bore Size from: 5 mm to 490 mm Inches Bore Size: 15.875 (5/8") to 101.6(4") Series mm: NK, RNA (without Inner Ring) NKI , NA (with Inner ring) Series Inches: BR (HJ) (without Inner Ring), BRI (with Inner Ring)