Self aligning ball bearings are suitable for applications where misalignment can arise from errors in mounting or shaft deflection. The steel balls, cage, and inner ring can rotate freely at a certain angle, as it is stated that the bearings have self-aligning features. Accordingly, misalignment of the bearing shaft due to the machining and installation of the shaft and housing will be automatically adjusted.

Physical characteristics of self-aligning ball bearings
•The self-aligning ball bearing has two rows of balls.
•A common concave sphered raceway in the outer ring.
•The center of whose curvature meets that of the bearing it, so that the inner ring, balls and cage continue to rotate.
•The self-aligning ball bearing with a tapered bore can easily be fit to the shaft with an adapter assembly.

Advantages of self-aligning ball bearings
•Have the lowest friction of all rolling bearings.
•Run cooler even at high speeds.
•Easy mounting and dismounting.
•The permissible operating speed is not dependent on the common criteria like heat generation or cage stability and strength.

Applications of self-aligning ball bearings
•Self-aligning ball bearings are used for commercial ground shafting applications.
•Since axial load capacity is limited, self-aligning ball bearings are not suitable for applications with heavy axial loads.
•Furthermore, if an adapter is used on the tapered bore of the inner diameter, installation and disassembly are much simpler and for this reason adapters are often used on equipment with drive shafts.

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Aligning ball bearings Features:

Mainly bear radial load, but can withstand axial load is small. Axis (shell) limit the axial displacement within the limits of the clearance, with self-aligning performance, allowing the inner, peripheral conditions relatively little inclination to work, for bearing seat hole can not be strictly guaranteed concentricity of the parts.

With a dust cover and with a ring-aligning ball bearing assembly has filled the right amount of grease should not be heated before installation without cleaning, use the process without re-lubrication, to adapt to operating temperature - 30 ℃ to + 120 ℃ between. Aligning ball bearings main purposes: for precision instruments, low noise motors, automobiles, motorcycles and general machinery, the machinery industry, the most widely used class bearings

Aligning ball bearing suffix definition:

C3: Radial clearance greater than normal clearance
K: 1/12 taper tapered bore
K30: 1/30 taper tapered bore
M: ball guide machined solid brass cage
2RS: closures with both ends
TV: ball guide glass fiber reinforced polyamide (nylon) solid cage

Specification:

Material: GCr15 --------bearing steels -----0Cr17Ni12Mo2------stainless steel ------SI3N4---SIN4---ceramics

Spherical roller bearing radial clearance:C0,C1,C2,C3,C4,C5

Precision Tolerance: self-aligning ball bearings  can be divided according to accuracy class PO, P6, P5, P4, P2. Accuracy sequentially from low to high Sort

Quality standard: ISO9001:2000

Introduction
Self-aligning ball bearing is round balls in two races that inner ring and outer ring whose race is spherical.

Application feilds
Precision instruments, low noise motors, automobiles, motorcycles, metallurgy, mill, mining, petroleum, paper making, cement, sugar and so on.