Protection and lubrication of the ball screw nut

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   (1) the protection of the ball screw deputyspherical roller bearing
    The ball screw deputy, and other rolling friction drive devices shou ld avoid hard dust or chips dirt to enter and must therefore be equipped with protective devices. If the ball screw vice on the machine exposed closed shield should be used, such as a spiral spring steel casing, the boom and folding casing. The installation will shield one end connected to the side of the ball nut and the other end fixed to the bearing seat of the ball screw. Ball screw deputy in a secluded location, you can ring protection, ring mounted at both ends of the nut. Contact elastic sealing ring with oil resistant rubber or nylon, the hole made into the shape of the raceway to match with the screw thread; effect of dust on the contact ring, but a slight increase due to the contact pressure, friction torque . Non-contact seals, also known as labyrinth seals, made of hard plastic, the shape of the inner hole and the screw thread raceway On the contrary, a slight gap, it can avoid the friction torque, but the effect of dust. The work should avoid crashing protective equipment, protective devices, the damage should be replaced.
    (2) the lubrication of the ball screw deputyslewing ring bearing
    The lubricant can improve the wear resistance and transmission efficiency. The lubricant can be divided into the lubricating oil and grease two categories. Lubricants are generally oil for total loss systems: the grease can be used lithium grease, high-speed, we recommend the use of lubricants 40 ℃, the viscosity index ranged from 32 ~ 68 cSt (ISO VG 32 to 68) (DIN 51 519) . Low speed, the recommended oil viscosity index in the range 40 ° C when more than 90 cSt (ISO VG 90). Grease is generally added to the thread roller and mounting nut shell space, space lubricants after the hole on the shell into the nut. Replaced once every six months on the ball screw grease, cleaning the old grease on the s crew, coated with the new grease. Lubricating ball screw deputy, each machine before refueling once or timing fuel according to job requirements.bearing corp