NK30/30 Needle Roller Bearing 30x40x30mm - Machined TypeNK30 30 Needle Roller Bearing Machined Type 30mm ID x 40mm OD x 30mm Wide Compact & High Load This NK30 30 needle roller bearing is a machined type design, built for applications requiring high load capacity in a compact space. With its 30mm inner diameter and full complement of rollers, it's perfect for gearboxes, transmissions, and tight mechanical assemblies. Inner diameter (ID): 30mm Outer diameter (OD): 40mm Width: 30mm Bearing type: Machined