Advantages and disadvantages of ball screw and linear guide?
Leon: ball screw and linear guide to subvert the traditional sliding friction, change into rolling friction, the friction coefficient of sliding friction is only 1/50 or so, which can reduce the driving torque, improve transmission efficiency, ensure the positioning accuracy. And as standard parts of the lead screw and rail installation will be more simple.Disadvantages: as the ball screw and linear guide used steel ball as the carrying capacity, then it will reduce the carrying capacity, and the requirements of lubrication conditions are higher. Regular oiling. At the same time, the use of environmental requirements have also improved, attention should be paid to dust, to avoid impurities into the raceway.
Ball screw and linear guide are two things! The linear guide rail and the ball bearing guide rail are one thing for guiding. The ball rail has small resistance and high accuracy. The ball screw is used for driving.
The ball screw and linear guide rail are high-end transmission parts, its main function is to convert the original sliding friction to rolling friction, the grinding technology of high precision positioning accuracy to create better products to meet the market demand for the processing, use according to different occasions is divided into roughly 10 grades, the driving force for small or larger the transmission power, the transmission efficiency is 10 times higher than that of conventional products.Ball and linear guide rail defects, 1 price relative to the price of other transmission parts is high, the cost is high, 2 computational complexity, need to apply complex selection calculation formula can choose better product specifications for equipment to demand 3 products can not lock, because the ball screw and guide rail are rolling friction parts to drive more smoothly the motion with small torque, no braking device in the vertical use case can not lock off.
