Bellows
Bellows protect moving parts against dirt, dust and moisture.
For this product, PTFE is an excellent material because it:
1. is antiadhesive
2. is chemically resistant
3. has a high flexlife
Application areas are Medical technologies, Food processing industry, Mechanical engineering.
There are two options in geometry:
round creases (roundly machined folds) for high stability under pressure
sharp creases (cut folds) for lower pressures but larger strokes