Spherical ball bearings have two rows of balls, the outer ring
has a common concave spherical raceway, and the center of
curvature and bearing center, even if the inner ring, steel ball,
and cage relative to the outer ring some tilt, but also can
rotate, so the bearing is self-aligning, not affected by the
shaft relative to the bearing box misalignment. Mainly used to
bear radial load, but also can bear a small amount of axial
load.
Generally can not bear pure axial load. Especially suitable for
those who may produce considerable shaft deflection or
misalignment bearing applications. For example, precision
instruments, low-noise motor cars, motorcycles, woodworking
machinery, textile machinery drive shaft, mining machinery,
mechanical and electrical equipment, plastic machinery, office
equipment, medical equipment, fitness and sports equipment, and
general machinery, etc., is the most widely used in the machinery
industry, a class of bearings.