In the molecular level, PTFE is a linear polymer with great molecular weight (Length of Polymer Chains) and Crystallinity level of 50-70% depending on the processing conditions.
What is the best grease for linear bearings?
Thomson offers LinearLube® grease which is suitable for most industrial applications. DO NOT use any type of dry lubricant (PTFE powder, graphite powder, etc.) with any recirculating ball or roller type of bearing. While these lubricants are good for sliding motion, they do very little to aid rolling friction.
What is a linear bearing used for?
Linear bearings are used in machine tool applications such as sliding doors, 3D printers, and automation settings where reducing friction and guiding linear motion is needed.Jun 11, 2021
Do you grease linear bearings?
You may be accustomed to greasing your linear bearings, but that's not necessary anymore. igus® linear bearings are designed with wear-resistant plastic liners that are embedded with solid, dry lubricants, such as PTFE and silicone.
How do you lubricate linear bearings?
- Light loads and high speeds do well with a machine oil or low viscosity grease.
- Medium loads and speeds do well with NLGI 1 or 2 grease.
- High loads may require a grease with an EP2 additive.
How does a linear bearing work?
Linear Bearings slide on a Linear Axis in a straight line. Because they are a bearing it allows you to move a significant amount of weight in a linear motion with great ease. The Linear Bearing takes all the weight without restricting the linear motion of the object, hence the name.May 12, 2020
Do linear bearings need lubrication?
Recirculating ball linear bearing systems require periodic maintenance and lubrication to ensure they operate properly and do not cause damage to the ball bearings or guides. ... According to a major ball bearing company, 54% of bearing failures are lubrication related.Nov 19, 2018