Linear motion is achieved through recirculating ball tracks running against a hardened shaft, allowing the unit to move axially with low friction along its guide. The bearing is sealed on both sides, protecting the ball system from contamination while retaining the initial grease fill. Net mass is 14.95 g. A relubrication facility is provided, allowing grease to be replenished without dismantling the unit from its shaft. The double-side sealing combined with the relubrication port supports continued operation without requiring disassembly for maintenance, since fresh grease can be introduced directly into the ball track area. As supplied with initial greasing, KH10-PP is ready for installation without additional lubrication before first use, and subsequent servicing is limited to topping up grease through the provided facility.