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NACHI TECHNICAL REPORT
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è£ãããããŒã¿ã確èªãããŠããã AbstractDeep-groove ball bearing has a long history of mass production and is the most widely-used bearing. The performance of this bearing has im-proved over time. During a long history of bearing manufacturing, NACHI continued to develop the technology in cooperation with the steel material division to prolong a life of a bearing with improved bearing material, reduce the manufacturing cost with im-proved forging technology, and further improve the efficiency of manufacturing machine in con-junction with the machine tool division. Even now we continue to develop or improve a bearing steel, lubricant and seal. New technologies such as doubled grease life and the seal heat-resistant temperature improved by 10â are applied to Quest deep-groove ball bearing, giving robust, higher performance with more capability.
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è£ãããããŒã¿ã確èªãããŠããã AbstractDeep-groove ball bearing has a long history of mass production and is the most widely-used bearing. The performance of this bearing has im-proved over time. During a long history of bearing manufacturing, NACHI continued to develop the technology in cooperation with the steel material division to prolong a life of a bearing with improved bearing material, reduce the manufacturing cost with im-proved forging technology, and further improve the efficiency of manufacturing machine in con-junction with the machine tool division. Even now we continue to develop or improve a bearing steel, lubricant and seal. New technologies such as doubled grease life and the seal heat-resistant temperature improved by 10â are applied to Quest deep-groove ball bearing, giving robust, higher performance with more capability.
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