Angular contact ball bearing sealing technology

In most cases, the outer ring of bearing such a fag mouth locked, and can not seal ring groove thus formed, leading many used in the machine tool spindle bearings on the angle of contact with Qiu can not be used as the other bearing on the other Zhuji as lubrication. If installing a set of auxiliary lubrication system, not only to increase costs and make the structure more complex machine.
FAG's Barden Division has solved this problem. The advanced method is to use a new type of a groove in the ring embedded in the bearing, the groove depth slightly shallower than the standard bearing point, and just fit in the intersection part, fill in the gap left by the outer ring flange. To join the ring not only stop the leakage of grease from the bearings on both sides, but also stop dirt from the bearing both sides of the intrusion.