11 Facts About Ball bearing


Ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races.

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Purpose of a ball bearing is to reduce rotational friction and support radial and axial loads.

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Ball bearing's was the first modern ball-bearing design, with the ball running along a groove in the axle assembly.

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The Ball bearing was used mainly in Ball bearing arrangements with very long shafts, such as transmission shafts in textile factories.

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The spherical roller thrust Ball bearing is another invention derived from the findings by Wingqvist.

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The industry standard usable Ball bearing lifespan is inversely proportional to the Ball bearing load cubed.

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Sideways torque on a radial Ball bearing applies pressure to the cage that holds the rolling elements at equal distances, due to the rolling elements trying to all slide together at the location of highest sideways torque.

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In general, maximum load on a ball bearing is proportional to outer diameter of the bearing times the width of the bearing .

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Lubrication can be done with a grease, which has advantages that grease is normally held within the bearing releasing the lubricant oil as it is compressed by the balls.

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When this is the case, it can significantly increase the stresses in the Ball bearing, often invalidating general rules of thumb regarding relationships between radial and axial load capacity.

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Part of a Ball bearing that rotates must be fixed, while for a part that does not rotate this is not necessary .

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