This linear ball bearing provides linear motion along a shaft through recirculating ball tracks running in an open, machined design. It has a bore diameter of 40.0 mm, an outside diameter of 62.0 mm, and a net mass of 0.516 kg. The KBO40-PP is sealed on all sides, protecting the ball tracks and shaft contact area from contamination. The all-side sealing keeps the raceway system enclosed, allowing operation in environments where dust or debris ingress needs to be limited. A corrosion-resistant design variant is possible, extending the application range where standard steel surfaces would be a concern. The open design permits mounting directly onto a shaft without additional housing constraints, and the linear ball arrangement is suited for applications requiring smooth, low-friction linear travel along a fixed axis.