103 工作機械主軸用軸受の環境対応技術(OS3 最新機械要素技術)

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概要

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• Recently, new technology has been utilized to develop environment-friendly angular contact ball bearings for machine tool spindles. Bearings with a bore diameter of 100mm have been tested to confirm the operating characteristics of these newly designed parts. In addition, a specially designed lubricant nozzle was also introduced and found to reduce the noise caused by balls cutting off the air jet of air oil by 6 to 8dBA at speeds greater than 10,000rpm. The newly designed nozzle in combination with the newly designed bearings is also effective at reducing the air-oil consumption. The newly developed bearings are capable of operating with an air rate of 10NL/min and an oil rate of 0.03mL/21min at a speed of 21000rpm. This is only 40% of the air rate and 10% of the oil rate of a conventional system. The electrical energy consumption of this newly developed environment-friendly technology is expected to be 20% less than a conventional system.

• 2001-11-20

著者

• 藤井 健次

  Ntn

関連論文

• 103 工作機械主軸用軸受の環境対応技術(OS3 最新機械要素技術)

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