Regarding the shaft diameter and hole size tolerance of the shaft and bearing box installed with plastic bearings, in the metric series, ISO283 (dimension tolerance and fit) has corresponding standards. Therefore, the fit tolerance has been determined by the selected shaft diameter and hole size tolerance.
Engineering plastic bearings are made of engineering plastic particles directly by injection molding or by extrusion or casting to form profiles, and they uniformly uphold many of the advantages of engineering plastics.