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.
2013年8月13日星期二
only 2 left unattended, monthly production 400,000 units.
two production lines. From the part on the material, installation card, processing, testing to the cleaning, assembly, oiling, packaging and a series of processing procedures, relies entirely on high-precision high-automation equipment complete, advanced processing and testing techniques, such as adaptive grinding technology, online measurement technology, fault diagnosis technology has been widely used, thus reducing the human factors of product quality failure, and the work efficiency is very high. Another example is the Japanese bearing ball Bearing test machine grinding production line automatic two different models, one for the grinding process of automatic wire processing equipment, an automatic line outside the ring a total of 18 sets of equipment, one person in two autoline. 6200 Ultra line grinding beat 4.8 seconds / parts, auto shop a total of 8 lines by four left unattended, monthly 1,000,000 sets. Another mill installed automatic line consists of 27 pieces of equipment, only 2 left unattended, monthly production 400,000 units.
Second, the creation of specialized production patterns and to maintain quality brands. Japanese bearings production is mainly heat treatment, grinding and machining processes, assembly processes. All roughing operations and purchased all the parts, and each part has 2 ~ 3 business, the company supplied. This specialization pattern of production in order to create a good efficiency, labor productivity per person up to 300 million yuan. Whether NSK or NTN, the reason why the world-famous, no doubt is due to quality of sake. Ultra-precision requirements of the customer, they have always responded with the highest reliability. They advocate the production of standardized global production bases, NSK ball bearings nearly half of the brand in the overseas factories, the same can be maintained with the Japanese domestic production of the same level of quality. Because of this, as the leader of the bearing NSK, NTN products, always synchronized with the era's most cutting-edge technology together.
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