This needle roller bearing carries a particularly thick-walled outer ring together with a needle roller and cage assembly and a separate inner ring, so all three components can be mounted independently. Bore diameter is 15.0 mm, outside diameter 35.0 mm, and the net mass is 63.1 g. The outer ring is not axially guided, and the design is open, without sealing. The absence of axial guidance on the outer ring means it can roll and follow a track surface without being restricted to a fixed axial position, which suits applications where the roller runs against a cam or guide profile. Since there is no sealing, the bearing depends on external protection or a clean environment to keep contamination out of the needle roller set, and relubrication has to be planned according to actual running conditions rather than relying on a built-in seal.