double groove ball bearing
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double groove ball bearing is a type of ball bearing that has ball tracks (grooves) on both the inner and outer raceways. This allows the bearing to handle axial loads in both directions.
Some key points about double groove ball bearings:
• They are used where axial loads act in both directions, either simultaneously or alternately.
• The balls run in grooves that are formed on both the inner and outer races. These grooves provide a path for the balls to roll in both axial directions.
• Double groove bearings can support higher axial loads compared to single groove bearings of the same size.
• They require a retainer on both ends of the bearing to keep the balls in place.
• They are more costly than single groove bearings due to the additional machining of the inner and outer races.
• They are available in both deep groove and angular contact configurations.
• The grooves on the inner and outer races should be aligned properly during installation to enable free movement of the balls in both directions.
So in summary, double groove ball bearings are designed to support axial loads acting in both directions. They achieve this by having ball tracks machined on both the inner and outer races. This configuration provides axial load capacity in both directions but at the expense of increased cost and complexity.
