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&lt;/script&gt;</html><thumbnail_url>https://nanovea.com/wp-content/uploads/2020/07/ball-bearings-wear.jpg</thumbnail_url><thumbnail_width>1000</thumbnail_width><thumbnail_height>523</thumbnail_height><description>INTRODUCTION A ball bearing uses balls to reduce rotational friction and support radial and axial loads. The rolling balls between the bearing races produce much lower coefficient of friction (COF) compared to two flat surfaces sliding against each other. Ball bearings are often exposed to high contact stress levels, wear and extreme environmental conditions such [&hellip;]</description></oembed>
