sealed bearing
2015年5月28日星期四
The leading figures of special bearing design and precision processing technology
Presided over a number of provincial scientific and technological projects and the state standards, radial clearance ,provincial and ministerial level scientific and technological progress award a third prize 3, the municipal science and technology progress, fatigue testing machine ,each two second prize, a number of technical innovations included provincial scientific and technological achievements, won 7 national invention patent.
2015年2月20日星期五
Common spindle speed dn value
Common spindle speed dn value (dn value is the average diameter of the spindle radial clearance (mm) and the limit speed (r / min) the product of the spindle) to measure the speed spindle often refers to the value of the spindle dn 1.0 × 106 or more. With the development of bearing technology, lubrication technology, the spindle speed to improve year by year. The data show that in the 1980s, spindle bearing grease lubrication dn values under conditions of maximum reach 0.5 × 106, but after the oil lubrication device developed, dn values rapidly increased to 1.0 × 106, using angular contact ceramic ball bearings after, dn value of the spindle bearings further increased to 2.0 × 106.
2014年5月8日星期四
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