Greasless Ball Bearings

May-27-15 A new greaseless ball bearing from the Japanese company Coo Space eschews the standard cage in favor of a small intention that keeps the balls evenly spaced.

In order to operate properly, the balls in a ball bearing must be kept evenly spaced from each other, a task that is conventionally accomplished by using a cage. But since the cage also creates friction, the bearing is lubricated with a thick application of grease.

In the new Autonomous Decentralised Bearings (ADB) from Coo Space, a small groove in the outer bearing race keeps the balls properly spaced without a cage. The balls slow a bit as they pass over the groove and then resume normal speed, leaving behind any ball that may be in contact at the moment. This slight deceleration helps keep the balls separated without a cage—eliminating the need for grease—without affecting performance.

More Info about this Invention:

[GIZMAG.COM]
[1ST.GEOCITIES.JP]

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