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双螺旋槽动压油膜轴承,有别于一般动压轴承,依靠主轴旋转将润滑油带入轴承间隙建立油膜,承载载荷。双螺旋槽动压油膜轴承通过在主轴轴颈上和轴承上的螺旋槽供给润滑油,摩擦面间不存在因油液不能进入而造成主轴和轴承金属间的直接摩擦现象,轴承的使用寿命长、摩擦阻力小、温升低、允许主轴颈的线速度高、承载载荷能力大。 M7130型卧轴矩台平面磨床,出厂磨削光洁度为▽7。1974年我们在修理该机床中,对砂轮主轴系统轴承虽经采取反复研刮等手段作提高精度的修理,在保证轴承外径与座孔密
Double spiral groove dynamic pressure oil film bearings, different from the general dynamic pressure bearings, relying on the spindle rotation of the lubricating oil into the bearing gap to establish oil film, bearing load. Double helical groove dynamic pressure oil film bearing through the spindle journal and the spiral groove on the supply of lubricating oil, there is no friction between the oil and oil can not enter the spindle and the bearing metal between the direct friction phenomenon, the long service life of the bearing , Small frictional resistance, low temperature rise, allowing the main journal of high linear speed, load carrying capacity. M7130 type horizontal axis moment table surface grinder, factory grinding finish ▽ 7. 1974 we are repairing the machine tool, grinding wheel spindle system bearing repeated grinding and other means to improve the accuracy of the repair, to ensure that the bearing diameter With seat hole dense