As the traditional work-craft has some grudge between bush with posts, and the coefficient of friction is larger. Now we have changed the work-ways to steel-ball directly face to face guide bush, so the precision is improved. It composes of both active roll and lower friction coefficient, now they have been widely used in punching machine, die machine, high precision machine which need rotation and vertical motion.
Material: 500#SP(strong cast standard)+graphite. Because the dimensions and standard are numerous, if you would like know more about our products, please contact us.