This needle roller bearing is a stud type track roller with a single row of needle rollers running in a particularly thick-walled outer ring, carried on a solid roller stud with a fixing thread and a mounting aid. Outside diameter is 72.0 mm, net mass 0.989 kg. Axial guidance of the outer ring is achieved through plastic axial plain washers together with a contact flange and a contact washer, and the design has no eccentric collar. Sealing is carried out in three stages by plastic axial plain washers (PP) on both sides, protecting the needle roller and cage assembly from contamination while retaining lubricant inside. KR72-PP-A can be mounted directly via the stud thread, giving a track roller with built-in axial guidance and a thick-walled outer ring for the running surface.