Self-aligning Ball Bearings
Self-aligning ball bearings are recommended for applications where it is difficult to align the shaft and housing or where the shaft may bend, such as gearbox shafts. The outer ring has a spherical raceway, and its centre of curvature coincides with the bearing's, allowing the inner ring, balls, and cage to freely rotate around the bearing centre. For this type, pressed steel cages are commonly used. Self-aligning Ball Bearings have a low axial load capacity due to their small contact angle. Under normal loads, the allowable dynamic misalignment is approximately 0.07 to 0.12 radian (4 to 7 degrees); however, such angles may not be allowable depending on the surrounding structure. Correct misalignment Self-aligning Ball Bearings have a spherical raceway in the outer ring with a center of curvature matched with the bearing center. This allows the inner ring, balls, and cage to rotate freely around the bearing center, maintaining alignment. Permissible dynamic misalignment is about 0.07 to 0.12 radian (4 to 7 degrees) under normal loads. Ideal for difficult mountings Self-aligning Ball Bearings suit applications where shaft bending occurs and where it is difficult to align the shaft and housing (transmission shafts, etc.). Self-aligning Ball Bearings are used in gearboxes and speed reducers. Track and guidance systems, cranes and lift equipment are all common applications for double row self-aligned bearings.
Self-aligning Ball Bearings are also used in rail, automotive, and transportation, as well as agricultural machinery, making them one of the most versatile types of bearings available. At Alma Bearings we stock a wide variety of self-aligned Bearings. Rubber sealed versions are also available. These protect the Bearing from dirt and moisture in the surrounding environment, but at the expense of more limited self-alignment. At Alma Bearings we are happy to supply small orders and, of course, price breaks are available for larger quantities. We stock self aligning bearings in SKF,KOYO,NTN and NSK. We also offer a 100% no-quibble, money back guarantee if you are not satisfied with your order. All our products are available from the website; however, should you need any help when ordering, give our customer services team a call and our friendly staff will be happy to assist you.
