Dairymaster DMS/DM5 Vacuum Pump Bearing Set (Pack of 2) The Dairymaster DMS/DM5 Vacuum Pump Bearing Set (Pack of 2) is a replacement bearing kit engineered for use in Dairymaster DMS and DM5 vacuum pump models . Bearings are a critical component in vacuum pump assemblies, supporting smooth rotor movement, reducing vibration, and helping maintain consistent vacuum performance during milking operations. This set includes two bearings , providing the essential rotating support required for both ends of the vacuum pump shaft. Over time, bearings can wear due to continuous operation, heat, and load, leading to increased noise, reduced vacuum efficiency, or premature pump failure if not replaced when necessary. Using the correct bearing set helps ensure that the vacuum pump continues to operate smoothly and reliably. Replacing worn or noisy bearings early can prevent more costly damage to the vacuum pump housing, rotor, or seals. The Dairymaster DMS/DM5 Vacuum Pump Bearing Set (Pack of 2) is ideal for servicing, repair, or preventative maintenance , particularly where diagnostic checks indicate bearing wear, vibration, or reduced pump performance. A fresh set of bearings restores correct