124 Series Small Displacement Sleeve Bushing Gear Pump

Sleeve bushing construction uses a cylindrical bearing surface to support the gear shafts instead of rolling element bearings. Over extended use, that design tends to handle contaminated or variable-viscosity fluid better in a lot of industrial settings, and it generally keeps maintenance intervals manageable since there are fewer components that need close attention. Permco built the 124 Series around that approach specifically for small displacement hydraulic work, so the durability is baked into the core design rather than bolted on.