Japan, nsk bearings is the world′s number one well-known products, we have many friends domestic use nsk bearings are installed, but some users may nsk bearing production and processing technology is not understood that the first two days of the time, it A friend asked nsk bearing sleeve machining all need to pay attention to what is really a strange question, but not nsk company′s production and technical personnel, ask this question has a wool ah. However, we still come about.

     nsk bearings inner sleeve machining, car Mizobe chamfering, grinding flat, finely processed with jacket raceway principle, similar requirements. nsk bearing inner plane after processing centerless grinding inner and outer diameter machining, which is the next step coarse grinding groove within the groove diameter branch laying the foundation for inner and outer diameter grinding mill processing requirements similar to the diameter. Mill, after coarse outer inner raceway (support Diameter mill raceway), coarse inner raceway requirements and coarse outer raceway similar. After coarse diameter, the benefits of doing so is to make the inner diameter and the inner raceway concentric inner and outer, lower product nsk bearing vibration and noise.

     After coarse grinding diameter inner raceway, which requires similar outer raceway with finely ground. Then finely ground diameter, lapping inner raceway (outer raceway with lapping similar).

     Nsk bearings on the inner and outer separable bearings, interchangeable mistake not to avoid affecting the outer contact quality. For non-standard bearings, one shall be arbitrarily put out a rolling element bearing mix in order to avoid confusion installation location affect accuracy. Installation of bearings, bearing code is easy to look at, without security mistake, typing bearing rings should be placed facing out and installation.

     nsk bearing parts mainly by the external cylindrical surface, the inner conical surface, circular surface and the outer screw thread surface composition, part drawing dimensioning complete outline clearly described. Wherein φ50, φ52 cylindrical with high dimensional accuracy and surface roughness, and the radial runout φ32 hole tolerance is 0.01mm; left side is perpendicular to the axis of the φ32 hole tolerance of 0.01mm; φ78 cylindrical a higher surface roughness, the surface roughness of the outer cylindrical Ra1.6μm. Parts and materials for the 45 steel cutting performance is better, no heat treatment and hardness requirements. Above is the nsk bearing parts processing technology-related knowledge, if you need more, please refer to our website to continue technical articles.