How to seal the angular contact ball bearing

Angular contact ball bearing is mainly used on the spindle of machine tool In most cases, the outer ring of the bearing has a locking port, so the ring groove formed by this cannot be sealed, so that many angular contact ball bearings used on the spindle of the machine tool cannot be filled with grease like other bearings used on other main engines If a set of auxiliary lubrication system is installed, it will not only increase the cost, but also make the machine structure more complex The Barden division of fag has solved this problem The advanced method is to insert a new type of grooved sealing ring into the bearing The depth of the groove is slightly shallower than that of the standard bearing, and it is just suitable for the intersection part, and fill in the gap left by the outer ring flange Adding the sealing ring can not only prevent the grease from leaking from both sides of the bearing, but also prevent the dirt from invading from both sides of the bearing.