Precision bearings according to ISO grading standards are divided into: P0, P6, P5, P4, P2. Rank higher in turn, where P0 is the general accuracy, other grades are precision level. Of course, different classification standards, different types of bearings, their classification method somewhat different, but the meaning is to the. The use of performance requirements of precision bearings rotating body with high runout accuracy, high-speed rotation and small changes in friction and friction.
2014年4月25日星期五
Precision Bearing Industry believes that a complete research system
Bearing accelerate product development and process innovation, effectively supporting the oil and gas industry to promote the successful development series bearings , bearing subway loading test, the product lightweight technology upgrading, development of motor bearings . Companies large special bearings advanced manufacturing technology wind turbine bearings Joint National Engineering Laboratory where the relevant departments have been approved , will further enhance the company 's R & D capabilities . Meanwhile, the company won two secret military field qualifications, passed the state weaponry research and production licenses on-site Precision bearing assessment and weaponry GJB9001B-2009 quality management system certification second phase of the initial audit . 2013 Northwest bearing R & D expenditure amounted to 22,432,000 yuan , accounting for the company's net assets was 8.1% , accounting for the proportion of operating revenue was 6.9 %. Industry believes that a complete research system , active R & D investment , experimental methods , such as high levels of the company to provide a strong guarantee for the development of high-end bearings
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