The Self-Lubricating Effect for Plastic Bearings

iglide® plastic bushing materials consist of base plastics, fibers and filling materials, and solid lubricants. These components are not applied in layers, but homogeneously compounded.

The advantage of this construction becomes clear if you consider the following:

1. The coefficient of friction, determined by the surface of the plastic bushing, should be as low as possible

2. The surface must not be pushed aside by forces acting on the plastic bushing

3. The plastic bushing should be particularly resistant to wear forces acting on its surface.

There is no universal material available that can fulfill all these tasks equally well.

The traditional solution is a hard shell with a soft coating. Traditionally, every lubricated bushing works according to this principle, including a number of maintenance-free bearings equipped with special sliding layers. However, this soft sliding layer is not strong enough; with high edge loads or oscillations it is stripped away. iglide® plastic bushings function differently.

One component of the iglide® plastic bushing material acts for each function:

• The base plastics are crucial for wear resistance
• Fibers and filling materials reinforce the bushing so that it can withstand high forces or edge loads
• Solid lubricants automatically lubricate the bushings and reduce friction in the system.

The solid lubricants are embedded as microscopic particles in millions of tiny chambers in the fiber-reinforced material. From these chambers, the plastic bushings release tiny amounts of solid lubricant during movement.

They are embedded in the tiny chambers, they can not be pressed out. They are always there as soon as the plastic bushing or shaft is set in motion. They help to lower the coefficient of friction.