Barden Precision Bearings Double Direction Angular Contact Thrust Ball Bearings

Double direction angular contact thrust ball bearings are designed for use in machine tool spindles, in combination with cylindrical roller bearings. They are manufactured to precision tolerances. Double direction angular contact thrust ball bearings are designed to carry only thrust loads. They match the mounting dimensions of the NN30 Series double row cylindrical roller bearings which carry the bearing load. Double direction angular contact thrust ball bearings are designed to be mounted in conjunction with a double row radial cylindrical roller bearing. The nominal size of the outside diameter is the same for both bearings which simplifies the machining of the housing bore. The outside diameter tolerance of the double direction angular contact thrust ball bearing is designed so that there is clearance between the bearing O.D. and the housing bore. Use of this bearing type, in combination with a double row cylindrical roller bearing, offers the advantage of supporting both axial and radial forces separately. Double direction angular contact thrust ball bearings have a contact angle of 60° and are axially preloaded. The contact angle and the axial preload ensures good ball control, especially under the centrifugal forces with fast rotating spindles. These bearings are designed to accommodate high thrust loads. They have solid one piece machined brass cages which are ball guided.