GIANT HEAVY

Detailed explanation of CNC vertical lathe spindle bearings

The CNC vertical lathe spindle is supported by bearings, and the bearings are reasonably arranged according to the working accuracy, rigidity, temperature rise and complex structure of the spindle components, which can effectively improve the accuracy of the main drive system.
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Spindle bearings usually use the following types.
(1) Deep groove ball bearing This kind of bearing can bear both radial load and axial load, and the load in any direction can reach 70% of the unused axial load. However, the bearing capacity is low, and it is generally suitable for high-speed and light-load main as auxiliary support. Alternative thrust bearings for pure feed force at very high speeds.
(2) Angular contact ball bearing This kind of bearing can bear radial load and axial load in one direction, with low load and high limit speed. Precision spindles for high speed and light loads. Often multiple bearings are used in a support to increase the
(3) Cylindrical roller bearing This kind of bearing can only bear radial load and has strong bearing capacity. It is often used for rear support or auxiliary support, allowing axial floating.
(4) Double row cylindrical roller bearing This kind of bearing can only bear radial load and can adjust the radial clearance. It is a radial bearing with high precision, high rigidity and high speed.
 
The source of this document is the official website of Botou Giant Heavy Industry Machinery: http://www.jrtcl.com