{"id":203,"date":"2016-06-13T19:48:00","date_gmt":"2016-06-13T19:48:00","guid":{"rendered":"https:\/\/hstspindles.com\/index.php\/2016\/06\/13\/how-to-replace-cnc-spindle-bearing-part-2\/"},"modified":"2023-11-02T19:53:03","modified_gmt":"2023-11-02T19:53:03","slug":"how-to-replace-cnc-spindle-bearing-part-2","status":"publish","type":"post","link":"https:\/\/hstspindles.com\/how-to-replace-cnc-spindle-bearing-part-2\/","title":{"rendered":"How to Replace CNC Spindle Bearing Part 2"},"content":{"rendered":"
Angular Contact Bearing Installation and Lubrication<\/strong><\/p>\n This is the Second in a five part series of tips and suggestions for replacing bearing in a precision CNC spindle.\u00a0 This series is specifically for the DIY person with limited resources. It is not a comprehensive description of how a fully equipped shop<\/a> that specialized in spindle repair works.\u00a0 While we will reference certain specific spindle makes it is primarily intended to be rather generic. If you have a specific question please send an email\u00a0at info@highspeedtechnologies.com<\/a>\u00a0or call 1-603-483-0333.<\/p>\n Last week we considered some tips on getting your spindle apart. Now we will need to get and install the correct bearings. So this week we\u2019ll speak about Angular Contact Bearings, lubrication and how to preload them. Next week we\u2019ll discuss Cylindrical Roller Bearings.<\/p>\n Super Precision Spindle Bearings<\/strong><\/p>\n When we\u2019re speaking about bearings on a CNC spindle we\u2019re speaking about two different types, Angular Contact and Cylindrical Roller Bearings (CRB).\u00a0 In a few instances there may be deep groove type bearing and an occasional cup and cone. Their installation is usually straight forward and they are not going to be discussed in this article.<\/p>\n Angular Contact Bearings (ACB) can handle axial and radial loads and are considered thrust bearings. However, they can only handle axial loading in one direction; so they are always used in pairs. Roller bearings have tremendous radial capacity; but zero axial capacity. So if your spindle uses a CRB it will also have at least one pair of ACBs.<\/p>\n Because we warranty all of our work HST only uses top name brand bearings purchased from authorized distributors. We simply can\u2019t take the chance that an inferior bearing will fail prematurely. These bearings have one thing in common; they are expensive. However, the DIY guy may want to take a chance and use some \u201coff brand\u201d bearings. Depending on the spindle, the price difference could be over a thousand dollars.<\/p>\n If you have a problem locating a bearing give us a call. We may be able to help you find a source and assist with spindle bearings installation.<\/p>\n About Angular Contact Bearings<\/strong><\/p>\n