In general machining center or CNC lathe application scenarios, various types of spindle bearings are used, so how to judge the quality of CNC lathe spindle bearings can be roughly summarized into the following aspects: 1. Is the outer packaging box clear? Generally speaking , Bearing well-known brands all have professional drawing staff to draw the external packaging box, and the manufacturers that produce standard customs clearance carry out production and production, so the external packaging is very clear and unambiguous from wire frame to color. 2. Is the word of the anti-counterfeiting sign clear? Well-known brand words and models are printed on the bearing body. The font style is very clear. The counterfeit text is not only ambiguous, because the hot stamping professional skills are not smooth, the font style floats on the surface, and some can be directly erased. 3. Is there any noise? Hold the inner sleeve of the bearing body with the right hand, and turn the coat with the left hand to make it rotate, and see if there is any noise. Because the production standards of some counterfeit substances are outdated, and the actual operation is completely manual workshop, it is inevitable that residues such as gravel will be mixed in the whole process of production and hidden in the bearing body. ring. This is also different from the highest among the well-known brands of the original factory that strictly abide by the production standards and use the equipment. 4. Is there any dirty oil stains on the surface? If there are very thick oil stains on the surface of the bearing body, and it is sticky and thick in the hand, it means that the rust prevention work is relatively simple, and the bearing manufacturers who have done a better rust prevention work, the surface There is no visible trace of the rust inhibitor. 5. Is the chamfer symmetrical? The chamfer of the bearing, that is, the intersection of the horizontal and vertical surfaces, the counterfeit CNC lathe spindle bearings are not handled well in those well-ordered positions due to the production of professional tube bundles. As expected. The torque is accurate, and the rotation can be stable. For 37 years, we have been focusing on the research and development, manufacturing and sales of machining centers and CNC lathe spindle bearings!