PCZ6476M Premier Budget Plain Bush 4x4.187x4.75 inch

Premier Budget PCM-M Plain Bushings: Inch plain bushings of triple-layer POM composite material. Suitable for bearing arrangements that have to support radial loads only. For slow rotational or oscillating movements as well as linear movements. Initial lubrication required. Maintenance-free, except where there is a risk of misalignment, edge loading or moderate contamination.
POM Composite: POM composite bearings consist of a copperplated sheet steel backing that is covered with a 0,2 to 0,4 mm thick layer of sintered tin/bronze. The principal characteristic of these bearings is their relatively thick (0,3 mm) layer of acetal resin (POM – polyoxymethy­lene) that is firmly attached to the sintered tin/bronze layer. The covering layer has pockets to retain grease. The thickness of the covering layer makes these bearings less sensitive to misalignment and the edge loading associated with that misalignment.