Planetary Gear Bearing Arrangements in Industrial Gearboxes

Planetary Gear Bearing Arrangements in Industrial GearboxesTechnical principles Products and applicationsForewordIndustrial Gearboxes are being designed as increasingly compact with smaller design envelope while their power levels are continually increasing. This increase in power density within a very small space places increasingly high demands on the rolling bearings is particularly true for Planetary Gearboxes in Industrial gear-boxes, since such Gearboxes must transmit very high power levels with high operational security within a very small design envelope. In more than a few cases, the Planetary gears in particular are subjected to loads up to their physical limits. At the same time,the planet carriers and planet pins are subjected to heavy reversed bending this demanding area of application, Bearing solutions are only accepted if the Bearing Arrangements not only have a reduced design envelope and give quiet running but also have low friction, extremely high reliability levels, a very long life and are very easy to ch n i ca l a n deconomic leadershipFor applications in Planetary Gearboxes , Schaeffler has solutions giving major customer benefits, such as: radially very compact, full complement single and double row cylindrical roller bearings RSL without an outer ring, with high dynamic and static load carrying capacity cage-guided cylindrical roller bearings

The essential information on lubrication in Catalogue HR 1, Rolling Bearings, chapter Lubrication, must be observed. Oil flow through the bearing In order to transfer heat and lubricate the rolling elements and cage, a sufficiently large oil flow through the bearing must be ensured. In order to ensure the outflow of oil, lubrication slots should be

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