Carrying full complement needle rollers in a thin drawn cup, this needle roller bearing takes up minimal radial space while handling radial loads on a supporting shaft. The open-end design HK1816-B has an outside diameter of 24.0 mm and a width of 16.0 mm, with a net mass of 16.992 g, and is built to DIN 618/ISO 3245. Limiting speed reaches 14000 1/min, with a reference speed of 10400 1/min. The open construction leaves both ends unsealed, so the bearing relies on external sealing arrangements and lubrication from the surrounding housing. Without integrated sealing, it suits applications where lubricant supply and contamination control are handled by the adjacent assembly, and where the thin-section cup allows a compact radial fit around the shaft.