XLB Self-aligning Ball Bearing 2218

Self-aligning ball bearing:
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 itself, 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.
These bearings come in internal and external types. Internal bearings have an outer-ring ball groove ground to a spherical surface. This surface makes these auto bearings insensitive to misalignment, but increases raceway contact stresses, which cuts load capacity.
Externally self-aligning bearings have a spherical surface on the outside of the outer ring, which matches a concave spherical housing. External bearings have better load capacity than internal, but demand greater radial space.

XLB Information :

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B. Wide Products Range and stock

With 4 owned manufacturing companies, we have wide product range and huge stock holding as well as strong package to meet customer requirement. More important, our good and stable quality enable us a reliable supplier. We are also certified by ISO 19001-2008 and UKAS management system and TS16949.

C. Technology

    We have 20 engineers whom specialized in technology with robust and rich experience in design, offering technical data sheets and bringing innovative and customized solutions to suit your needs. Our factories own precise facilities and measurement equipments as well as advanced software to secure the good and stable quality.