Backing bearings are particularly thick outer ring of the rolling bearing, when used to form a group to be mounted on the shaft of a stationary support rollers. Pressure on the work roll through the intermediate roller and the support roller is passed to the system to the rack through the saddle. Generally used for multi-roll cold rolling mill equipment can also be used for other occasions, such as straightening machine.
2013年8月22日星期四
NSK machine tools "X1-ring Ball" upcoming
Seiko Corporation of Japan (NSK LTD.) In order to achieve long tool life, reduce environmental pollution, the development of suitable areas for machine tools "X1-ring ball." Here are distributor of NSK China's introduction.
NSK machine tools "X1-ring screw" Features:
· High dustproof performance and grease sealing performance both: NSK X1-ring seal with a specially designed ball, the outer sealing lip shielded from external dust and debris, grease the inner sealing lip to prevent internal leakage. Compared with the general ball, "NSK X1-ring Ball" foreign body through reduced to 1/30 or less, and grease sealing Slewing bearing increased 3 times, enabling the machine long life, reduce environmental pollution.
· Low torque contact seals: NSK X1-ring seal lip shape ball using the most optimized design, and the use of special resin material in contact with the screw shaft friction is small, along with high sealing performance and low torque performance to meet high speed and high precision machine tool requirements.
NSK in 2005, the development of high performance seals are widely used in laser processing machines, woodworking machines and other machine tools for use in harsh environments. 2007 NSK based on this technology to develop a grease seal ring, and in the injection molding machine market has been widely praised. With this sealing technology NSK has further developed the machine with the "X1-ring ball" high dust and grease sealing performance of both performance and torque is low, to achieve long tool life and reduce environmental pollution. NSK machine tools "X1-ring Ball" as the latest high-speed ball screws for machine tools, will begin selling in April 2011, is expected in 2013 total sales of high-speed ball screws for machine tools will reach 50 billion yen. Made.
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