Lubrication of Ball screw and Lead screw

Lubrication of Ball Screw and Lead Screw
Ball screw description:
A Linear Actuator that converts rotational motion to Linear Motion. The threaded shaft provides a helical raceway for the ball Bearing, acting as a precision screw. A ball screw is similar to a ball bearing and feels like most of the friction is rolling friction.
Lubricating:

Ball screws can be lubricated with oil, grease or solid lubricants depends on the application.

For this article, we will mainly focus on Grease and oil lubrication.

The screw surface should be lightly greased so that Prevent corrosion. Nuts can fill 30-70% of their free space. Some nuts have wipers to help retain grease and can be filled completely. A general rule of thumb for relubricating ball screws (up to 70°C) is 500,000 rpm or after 6 months. After every 10° rise above 70°C, The relubrication interval should be halved. The amount of relubrication should be Equal to 30% of the nut-free space. should be re-lubricated Discuss with your local Klüber Lubrication representative as it is based on in the exact application criteria. For thorough grease distribution, it is It is recommended that the screw run 2-10 times the operating stroke. Some ball screws also contain support bearings to help carry the load. These bearings are designed for relubrication or lubrication lifelong. Calculate the amount of lubrication and type of lubrication From bearing type, temperature, speed and load. these supports If included in the balls, the bearing should be monitored and maintained Screw design. Relubrication of support bearings is different from The ball screw itself, because the grease is sealed or shielded, cannot escape.

Lead screw description:
A lead screw is similar to a ball screw in that it also contains a Nuts as moving parts. instead of spinning the rolling ball Transition to linear motion, the lead screw is a rotary sliding friction Converted to linear motion. lead screw similar to bolt It's screwed into the nut except on the rails instead of the bolts.

Lubricating:
The lead screw can also be lubricated in a number of different ways Lubricants, greases, oils and solids. We will focus on oils and fats lubricating. Since the lead screw is only sliding friction, the product will also change. In many lead screw applications, we employ solids and coatings to support a large amount of sliding friction. The relubrication rate is about 6 months, the nut of the lead screw can sometimes be A self-lubricating polymer. For relubrication and procedures, see Ball screw part.

Please contact us if you have any problems about Lubrication of Ball screw.