This linear ball bearing carries recirculating ball sets in a machined outer sleeve, allowing axial motion along a shaft with low friction. Bore diameter is 20.0 mm, outside diameter 32.0 mm, and net mass is 87.89 g. The design is sealed on all sides and includes a relubrication facility, with a corrosion-resistant version available. The full sealing on both ends keeps contaminants out of the ball tracks while retaining grease inside the unit, and the relubrication facility allows grease to be replenished without dismantling the assembly. As a linear ball bearing, it requires a hardened and ground shaft to run on and is suited to applications needing smooth, low-friction linear travel with minimal maintenance intervals.