Angular contact ball NSK bearings mainly use on the machine spindle. In most cases, this FAG bearing outer ring interlocking mouth, and thus can not seal the resulting ring groove, angular contact ball bearings used in machine tool spindle can not be like the other bearing on the other host as lubrication. If installing a set of auxiliary lubrication system, it is necessary to increase costs, but also so that the machine structure is more complex.
FAG Barden division has solved this problem. The advanced method is embedded with a novel ring groove bearing, slightly lighter point, the depth of the groove than the standard SKF bearings and adaptation happens at the intersection, to fill the gap left by the outer flange. Add this ring can block the grease from the leakage of INA bearings on both sides, but also to block the dirt from both sides of the bearing intrusion.



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