Corrosion-resistant xiros® self-aligning ball bearings

With our first self-aligning ball bearing according to the standard DIN 630 made of the high-performance polymer xirodur B180, you can not only compensate for misalignment on shafts of up to 4° but also take uphigher loads easily due to the balls being arranged in a double row. The self-aligning ball bearing is initially available in four installation sizes for average shaft diameters of 8, 10, 12 and 20mm.
 
Your benefits at a glance:

• Compensates for misalignments
• Corrosion-free
• Lightweight
• Lubrication-free

Typical application areas:general mechanical engineering

Things to know about self-aligning ball bearings

Due to the lower degree of osculation of the rolling elements on the outer ring compared to single-row radial deep groove ball bearings, self-aligning ball bearings can pick uphigher loads easily. How much the swivel bearings can accommodate in an axial direction depends on the respective pressure angle. The raceway of the outer ring has the shape of a hollow ball, as a result of which the inner ring together with the balls can pivot around the centre point of the self-aligning ball bearings within certain tolerances during simultaneous rotation. Pivoting is possible without the creation of any additional friction.
 
How does that work? In contrast to standard radial deep groove ball bearings, the ball raceways in the outer ring are not limited laterally. The self-aligning ball bearings can therefore pivot freely laterally in the outer ring. As a result, there is no increase in friction when a tilting moment occurs in the limiting area of the outer rings.
 
When is a self-aligning ball bearing the right choice for my application?

• When a large pivoting angle is needed
• When machining errors/assembly errors or instances of shaft bending have to be compensated for
• When spindles have to be supported where a small axial wobble plays a role (spherical outer raceway)