Koyo deep groove ball bearing ring processing

Although many types of deep groove ball bearings, their level of structure, tolerance, material selection, processing method is different, but the basic manufacturing process are include the following contents: 1, deep groove ball bearing parts manufacturing Check - bearing parts Demagnetization, cleaning, rust - bearing parts Bearing assembly - Deep groove ball bearing product inspection - Deep groove ball bearing products demagnetization, clean - Bearing product packaging oil bucket storing. 2, the ring is an important part of deep groove ball bearing, due to the wide variety of deep groove ball bearing, make different types of deep groove ball bearing ring size, structure, manufacturing equipment, process method, etc. Each are not identical. And because ring machining processes, process more complex, high machining accuracy, therefore, ring of the precision of the processing quality of deep groove ball bearing, have great effect on the service life and performance. 3, ring manufacturing raw materials for cylindrical bar stock or tube material, depending on the molding process at present, deep groove ball bearing ring generally has the following several kinds of manufacturing process. 1) ( Bar) Blanking - Forging - Annealing ( - or fire Turning ( Cold roll forming) - Quenching and tempering heat treatment - Grinding - Parts check - - for demagnetization and cleaning Submit the assembly. 2) ( Bar, pipe material) Blanking - Cold roll forming - Quenching and tempering heat treatment - Grinding - Parts check - - for demagnetization and cleaning Submit the assembly. 3) ( Pipe material) Blanking - Turning to shape - Quenching and tempering heat treatment - Grinding - Parts check - - for demagnetization and cleaning Submit the assembly (4) ( Bar) Blanking - Cold ( Temperature) Extrusion - Turning - Quenching and tempering heat treatment - Grinding - Parts check - - for demagnetization and cleaning Submit assembly ring forming methods: currently in ring processing, molding method basically has the following kinds: forging forming, cutting forming, cold rolling forming and cold ( Temperature) Extrusion. 1) Forging forming by forging processing, metal internal defects may be eliminated to improve metal organization, make the metal flow distribution is reasonable, good metal tightness. Forging forming process is widely used in deep groove ball bearings, the forming process can be completed from ~ 20 mm inner diameter small products to outside diameter of 5000 mm oversize product processing. 2) Forming of cold rolling process of cold rolling is a kind of can improve material utilization, improve the metal tissue compactness, keep the advanced technology of metal flow linear method, it is a kind of chipless machining method. Theoretically, the cold roll forming products without turning can be directly on heat treatment and grinding. At present, the cold rolling technology is mainly used in medium and small deep groove ball deep groove ball bearing, the main technological process is: forging blank, The ring) - Turning ( In addition to the channel) - Rolling ( Ditch and chamfering) The whole path - Soft grinding both ends. Is made of cold rolling technology and forging forming process, the precision of the products in addition to the affected by the precision equipment, but also influenced by forming mold accuracy. 3) Cutting molding: in deep groove ball bearing industry traditional cutting molding technology is to use a special lathe, the concentration process method to complete the processing. But as a result of this method used equipment adjustment is difficult, low accuracy of machine tool, the material utilization rate is low, so the process is to be eliminated.