The spindle of high-precision CNC lathe refers to the axis that drives the work piece on the machine tool. In the working process of CNC machine tools, the work piece is clamped by the spindle and directly involved in the surface forming movement. The spindle is the key to the terminal execution of the CNC machine tool to realize cutting processing. Its rotational accuracy plays a very important role in the accuracy of the machine tool. The structural form of spindle bearings is basically limited to four structural types: angular contact ball bearings, cylindrical roller bearings, bi-directional thrust angular contact ball bearings and tapered roller bearings.

Ceramic materials have the advantages of low density, high modulus of elasticity, low coefficient of thermal expansion, wear resistance and high temperature resistance, etc., and have become the ideal material for manufacturing high-speed bearings. Ceramic bearings have also been more widely used. Based on the difficult processing of ceramic materials, ceramic bearings are mostly rolling bodies, for ceramic, inner and outer rings are still chrome steel. Generally what we call CNC machine tool spindle bearings and ball screw bearings are spindle bearings and screw bearings with a precision of P5 and above.

CNC machine tools for general transmission bearings on the rolling bearings, the requirements and ordinary mechanical transmission bearings, as long as to meet the requirements of strength and service life, the speed does not exceed the specified limit speed. In the selection of high-precision CNC lathe should be comprehensive consideration of the following points:

● 1,Pre-preparation: Determine the process requirements of typical parts, the batch of processed work pieces, and formulate the function of CNC lathe is a prerequisite for the reasonable selection of CNC lathe;

● 2, machine tool accessories and tool procurement and procurement: machine tool accessories, spare parts and their supply capacity, tooling is very important for the CNC lathe has been put into operation. When choosing machine tools, carefully consider the matching of tools;

● 3, pay attention to the identification of the control system: finished manufacturers should generally choose the same automatic CNC lathe manufacturers of products, at least choose the same manufacturer's control system, which will bring great convenience to the maintenance work;

● 4, according to the cost-effective choice: do not waste high-precision CNC lathe function and precision, do not choose the function that has nothing to do with them.

● Higher accuracy Taiwan linear guideways
● Higher speed spindle unit
● Higher rigidity cast iron
● Integrated automatic lubrication
● One-piece Casting slant bed CNC lathe

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