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CNC horizontal machining center bearings, gears, rail lubrication
Mar 30, 2018

The bearing lubrication of the CNC horizontal machining center will first of all include the lubrication of the sliding bearings. Because the sliding bearing is a more commonly used transmission method, the lubricating oil can not only play the role of lubrication but also play a role in cooling, and it is precisely because of this, the bearing lubrication of the CNC horizontal machining center requires a low viscosity with good lubricating performance. Lubricants also need to have good anti-oxidation, anti-wear, anti-rust and anti-foam properties.

 

For precision sliding bearings used in the grindstone spindle of precision grinding machines on CNC horizontal machining centers, Because the bearing clearance is extremely small (1 micron), the rotational speed is particularly high (30000r/min or more) and the viscosity with very low viscosity and excellent oil resistance is 2.0mm2 (40°C).

 

The lubrication of CNC rolling bearings in CNC horizontal machining centers: Because of its advantages such as low friction coefficient and quiet operation, the rolling bearings have been widely used on machine tools. When the internal diameter is 25mm and the rotation speed is less than 30000r/min, high-speed grease is sealed. Over 30000r/min should be forced lubrication or spray lubrication. It should be noted that in addition to large and rough special cases of rolling bearings, greases containing solid lubricants are generally not used.

 

CNC horizontal machining center on the lubrication of CNC machine tool gear: Because the impact and vibration of the gear of the machine tool is not large, and the load is small, it is generally not necessary to use the lubricant containing extreme pressure additives. At this time, it is necessary to pay attention to how to prevent the thermal deformation of the headstock. The gears of punching or shearing machine tools with large impact loads should use gear oils containing antiwear agents. According to the type of gear, choose the right gear oil and suitable viscosity.

 

The lubrication of the guide rails of the CNC machine tool in the CNC horizontal machining center: The load on the guide rails and the change in the speed thereof are relatively large. Generally, the load on the guide rail surface is 3-8 N/cm2.In order to overcome the crawling phenomenon of the thick line of the CNC horizontal machining center, in addition to using fluorine resin rails, etc., in the aspect of improving the lubrication, the lubricant containing anti-climb agent should be used. The viscosity of the guide rail is generally 32, 68, 100, 150 Guide rail oil.

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