the major characterization of prs products: the prs steel-wire raceway ball bearings can sustain forces from whatever directions due to their 3-point or 4-point geometry .the rings have the advantage that they fit themselves tightly into the bearing rings of the mating structure and compensate machining tolerances. with this technology high precision even if large bearing diameter is achieved. they are convenient and economical to use .the new process aimed at tightly matching between steel ball and race ways .thus the load ,the capacity ,and precision of the bearing elements are increased and they are better adapted to particular demands . there are four types of the wire raceway ball bearing .for example ,4-point contact bearing assembly with a carrying angle of 45¡ãor 30¡ã; double row inclined bearings for rational speed and very high precision ; double row 3-point contact bearings with low rotational resistance ,flexibility and a very good running behavior ;and cylindrical roller bearings with stiffness and compactness .we have seven products series which can be widely applied in machine building ,medical technology ,textile machines ,food and packing industry .the bearings are ideally suitable for particular applications such as under clean room, high temperature ,or vacuum conditions .at the same time ,the customers can planned the particular bearings according to their requirements .we are rich in excellent experience and products series. therefore, we are fully able to meet the customers¡¯ requirements about the standard or non-standard bearings.