Sunon offers quality answers to questions regarding the benefits of good bearing design in Sunon fans. Most models are provided with a choice of bearings, including standard ball bearing, sleeve, and Sunon’s proprietary Vapo-Bearing™ technology, one of industry’s most effective designs that virtually eliminate wobbling, reduce bearing wear, offer exceptionally quiet performance and increase fan life at a cost that is no more than is typical with ordinary fans. Both technologies are patented and include state-of-the-art advances in bearing surface materials and impeller stabilization.