Comments on: Bearing the load http://www.ret-monitor.com/articles/973/bearing-the-load-2/ Specific mission-critical info for professionals Mon, 21 May 2012 23:09:59 +0000 http://wordpress.org/?v=2.7.1 hourly 1 By: terry http://www.ret-monitor.com/articles/973/bearing-the-load-2/comment-page-1/#comment-5578 terry Wed, 29 Dec 2010 07:46:58 +0000 http://www.ret-monitor.com/articles/973/bearing-the-load-2/#comment-5578 While hybrid rolling element bearings (ie. ceramic rollers with steel races) might be lighter than an all-steel bearing, its fatigue life will be less. This is due to the higher MoE of the ceramic roller creating greater contact stress levels in the steel race surface. And as noted, the ceramic rolling elements are more likely to suffer brittle fracture failures if debris is present. While hybrid rolling element bearings (ie. ceramic rollers with steel races) might be lighter than an all-steel bearing, its fatigue life will be less. This is due to the higher MoE of the ceramic roller creating greater contact stress levels in the steel race surface.

And as noted, the ceramic rolling elements are more likely to suffer brittle fracture failures if debris is present.

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