Comments on: Getting the best from rolling element bearings http://www.ret-monitor.com/articles/901/getting-the-best-from-rolling-element-bearings/ Specific mission-critical info for professionals Mon, 21 May 2012 22:52:59 +0000 http://wordpress.org/?v=2.7.1 hourly 1 By: Terry http://www.ret-monitor.com/articles/901/getting-the-best-from-rolling-element-bearings/comment-page-1/#comment-6169 Terry Sat, 22 Jan 2011 05:33:47 +0000 http://www.ret-monitor.com/articles/901/getting-the-best-from-rolling-element-bearings/#comment-6169 In an average size rolling element bearing subjected to radial loads, the load is carried by a surprising few number of the elements. For example, if your 30mm bore roller bearing has a total complement of 15 rollers, only about 5 or 6 of them will be loaded. And they won't share the load uniformly. With properly designed and lubricated rolling element bearings operated under constant rotation at reasonable speeds, microwelding is not an issue. Rolling element bearings give the best performance and fatigue life when the element/race contacts are designed to stay within hydrodynamic conditions. In an average size rolling element bearing subjected to radial loads, the load is carried by a surprising few number of the elements. For example, if your 30mm bore roller bearing has a total complement of 15 rollers, only about 5 or 6 of them will be loaded. And they won’t share the load uniformly.

With properly designed and lubricated rolling element bearings operated under constant rotation at reasonable speeds, microwelding is not an issue. Rolling element bearings give the best performance and fatigue life when the element/race contacts are designed to stay within hydrodynamic conditions.

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