SKF Superprecision Bearing Lubrication Unit（SKF高精度轴承润滑轴承单元）.pdfVIP

SKF Super-precision Bearing Lubrication Unit Improved reliability, profitability and reduced environmental impact To meet the ever-growing performance requirements of high-speed Oil-air lubrication system provides the following advantages: precision applications, SKF has developed the new Super-precision Bearing Lubrication Unit for use with oil-air lubrication in high- • increases the bearing attainable speed speed applications. This system can not only simplify new spindle • reduces friction torque and energy consumption designs but can also improve the performance of existing designs. • reduces environmental impact This highly effective solution improves lubricant flow and reduces • reduces lubricant consumption frictional heating in the bearings, enabling them to operate at • maximizes the effectiveness of the lubricant speeds up to approximately 2.5-3 million n dm. By reducing the • positive pressure within the housing virtually eliminates the operating temperatures and improving oil-air flow, oil consumption ingress of contaminants. and noise levels can also be reduced. Advantages of oil-air lubrication SKF’s optimized design The rotational speed at which a bearing reaches its operating tem- An SKF Super-precision Bearing Lubrication Unit consists of a pre- perature limit depends primarily on the heat generated in the bear- cision-ground steel spacer ring, a precision oil-air distribution ring ing (frictional heat) and the amount of heat that can be transferred and a super-precision angular contact ball bearing († fig. 1). Two away from the bearing. One way to reduce frictional heat, particu- O-rings on the outside surface of the oil-air distribution ring sepa- larly in bearings, is to be sure that the c