Applications roughness are: one, insert ball bearing, mainly metal manufacturing. The initial roughness generated is to detect the surface roughness of machined parts and raw. Especially in comparison stylus roughness measuring instrument for the detection of relatively hard texture of the metal surface. Such as: automotive spare parts processing and manufacturing, machinery parts processing and manufacturing, and so on. The processing and manufacturing industries as long as it comes to the workpiece surface quality, roughness tester for testing applications is essential. Shanghai full of love Feng Precision Instrument Co., Ltd. is a professional agent in Japan MITUTOYO Mitutoyo gages and measuring instruments and gauges SK Japan and other professional firms. Second, the non-metal processing and manufacturing, with the progress and development of technology, more and more new material applied to the processing technology, such as ceramics, plastics, polyethylene, etc., are some of the bearing is to use a special ceramic materials processing and production , as well as valves and other is the use made of polyethylene material processing. These materials are hard, some applications can replace metal material of the workpiece, in the production process also requires the detection of surface roughness. Three, with the roughness of the technology and features continue to strengthen and improve, as well as in-depth promotion and application, more and more industries were found to be demand for roughness testing, except machinery manufacturing, the electricity, telecommunications, electronics, , such as the production process also need to assess the roughness on the switch coupling, integrated circuits and semiconductors, and even stationery used in people's lives, tableware, tooth surface roughness of the surface to be used in human testing.
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.
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