This plain bearing enables straight-line sliding motion along a shaft, using an open design that is sealed on all sides. Net mass of the unit is 58.0 g. The construction includes a relubrication facility, allowing grease to be replenished during operation without dismantling the assembly. The all-side sealing protects the sliding surface from dust and contaminants while retaining grease inside the bearing, which supports stable operating conditions over extended periods between service intervals. The open design of the PABO20-PP-AS allows mounting directly onto a shaft section, and the relubrication feature makes it suitable for applications where periodic maintenance access is available and continuous linear travel is required.