This linear ball bearing accommodates axial motion along a shaft through recirculating ball tracks running in a machined outer sleeve. Bore diameter is 40.0 mm, outside diameter 62.0 mm, and net mass 595.64 g. The design KB40-PP is sealed on all sides, which keeps the raceways protected from contamination during linear travel. The full seal arrangement limits ingress of dirt and moisture, supporting steady operation where the shaft moves back and forth under continuous linear loading. A corrosion-resistant version of this construction is available, allowing use where standard bearing steel would be exposed to unfavorable environmental conditions. Mounting follows standard shaft-guided linear bearing practice, with the ball tracks requiring adequate lubrication to maintain smooth sliding motion over the shaft surface.