The dual-axis linear guide is a type of roller linear guide. It is different from the sliding method of the hole of the ball linear guide. How is the dual-axis linear guide lubricated and can it be free of maintenance?
The ball of the ball linear guide is in direct contact with the guide rail surface, and also in contact with the air, so it needs to be lubricated, the lubrication method and the guide rail surface lubrication. Since the roller bearings of the two-axis linear guide rail roll on the steel shaft embedded in the guide rail, the ball lubrication of the roller bearing and the lubrication of the guide rail surface are separated.
The rollers of the double-axis linear guide are sealed with high-grade grease before leaving the factory, but there is no need to add grease during use. Lubrication of the steel shaft of the double-axis linear guide rail: mainly the oil seals at both ends of the slider. The shell of the oil seal is a plastic shell, which is resistant to a certain degree of impact: there is an oil hole on the plastic outer surface, and the middle can be filled regularly. Felt brush impregnated with oil on both ends of the sliding seal
However, in medical, food, vacuum, cleaning and other applications, it is very inconvenient to use environmental requirements and the addition of lubricating oil. Roller rails that do not allow rail lubrication are not allowed. Because the contact between the roller and the rail is similar to line contact, Mainly rolling, with low friction coefficient, high heat dissipation efficiency, select special grease, life-long lubrication and normal operation, system maintenance is in the manufacturing industry of medicine and food processing, and important projects often require oil-free.
Therefore, it is important to choose other transmission components that cannot be lubricated for the guide rail, such as bearings and grease, because they need to be sealed without leakage and do not need to be added during use, so it is equivalent to no lubrication, but the system is running normally.
