The NSK self-aligning ball bearing has two rows of balls and a hollow ball raceway on the outer ring whose centre is on the bearing axle. Therefore, the inner ring, the balls and the cage can be swivelled to a certain extent. This allows for smaller inclinations of the shaft and the housing to be compensated. They are always used when the alignment of the shaft and housing is problematic and the shaft can bend. Due to the low contact angle, the axial load capacity is low. The permissible shaft skew position is 4 to 7 degrees under normal loads. Pay attention to this point when constructive layout.
In 1916, NSK started its business as a manufacturer of rolling bearings. Since then, the product range and services for various industrial sectors have been expanded and improved. Meanwhile, NSK is one of the world's leading manufacturers of rolling bearings, linear technical components and steering systems and represented on all continents. In its worldwide research centers, NSK focuses on developing new technologies and optimizing quality. NSK is a leader in patent application for machine components.
Technical information:
Manufacturer item number: 1214.
Dimensions: 70 x 125 x 24 mm.
Seal: none.
Cage: sheet steel cage.
Bore: cylindrical.
Bearing air CN: 18 - 40 µm.
Max. Dynamic load (Cr): 35000 N
Max. Static Load: (Cor): 13800 N
Max. Grease lubrication speed: 4800 rpm.
Max. Oil lubrication speed: 5600 rpm.