Browse Publications Technical Papers 2010-01-1892
2010-10-05

Load Calculations for Slewring Bearings 2010-01-1892

Single row four point contact ball bearings are routinely used as slewring bearings to take heavy loads under a combination of eccentric axial load and radial load for applications such as earth moving equipment, construction machinery, mining and handling machines, excavators and cranes, etc. The calculation method of the equivalent loads for slewring bearings was introduced in SAE 2006-01-35541 ) , but only dealt with the case in which the bearing takes a tilting moment due to combination load.
In this paper, two additional load case conditions are analyzed: one is the case in which the bearing takes all ball loads only on one side of each raceway axially, and the second is the case in which the bearing takes ball loads radially on both sides of each raceway.

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