FAG double-way angular contact thrust ball bearings are high-precision bearings specially designed and produced for the machine tool industry. It can withstand axial loads in machine tool spindles and has the same dimensions as the double row cylindrical roller bearings of the NN30 series (see page 166) used to support radial loads. External dimensions double-way angular contact thrust ball bearings are usually used in combination with double row cylindrical roller bearings. Both have the same nominal outer diameter. Thereby, the machining of the bore diameter of the bearing seat is easier. The outer diameter tolerance of the double row angular contact thrust ball bearing ensures that there is still a certain clearance after the bearing is installed in the bearing seat. Bearing Design Two-way angular contact thrust ball bearings have a contact angle of 60 and are axially preloaded. Therefore, its axial load-carrying capacity and stiffness are high. This type of bearing has two series 2344.. and 2347. Series 2344.. are mounted on the side with the smaller tapered bore of the NN30 cylindrical roller bearing, while series 2347.. are mounted on the side with the larger tapered bore. FAG double-way angular contact thrust ball bearing bearing design Figure 2 and Figure 3 table the relationship between 2344../2347.. series bearings and NN30 double row cylindrical roller bearings when assembled. The 2344 double-way angular contact thrust ball bearing is located on the smaller side of the tapered bore of the NN30...K double row cylindrical roller bearing. The 2347 double-way angular contact thrust ball bearing is located on the larger side of the tapered bore of the NN30...K double row cylindrical roller bearing. Lubricated FAG angular contact thrust ball bearings can be lubricated with grease or oil. The seat ring is provided with a lubricating groove, and a lubricating hole is opened in the middle. The lubricant is introduced between the two rows of rolling elements, and the purpose of lubrication is achieved by the action of the bearing running and conveying. It is this high conveying effect that requires a much larger amount of lubricant than an adjacent cylindrical roller bearing. Therefore, the design needs to ensure that the oil flowing out of the thrust angular contact ball bearing cannot enter the adjacent cylindrical roller bearing. Bearing suffix code FAG double-way angular contact thrust ball bearing 2344 24-M-SP series name 2344 Mounted on the small end of the tapered shaft 2347 Mounted on the large end of the tapered shaft Diameter reference code 06 6 5 u003d 30 mm10 10 5 u003d 50 mm accuracy SP special accuracy UP Ultra Precision Cage M Brass Cage.