KS P20, P22 and P23

Material information

P20, P22 and P23... low-maintenance standard solutions

P20, P22 and P23 are leaded standard sliding materials with a high performance. They are designed for low-maintenance grease or liquid-lubricated applications. The standard P20 version features oil distributing pockets according to DIN ISO 3547 in the sliding surface and a pre-finished wall thickness. The P22 versions (smooth sliding surface, suitable for reworking) and P23 (smooth sliding surface, ready to install) are also available on request.

Material production

The bronze compound layer is sintered onto a prepared steel surface (band) in a continuous sintering process in such a way as to produce a pore volume of around 50 % at a layer thickness of approx. 0.3 mm.

Next, the sliding layer is applied in powder form and rolled into the cavities in the compound layer under a high temperature.
The result is a sliding layer thickness of approx. 0.08 mm or approx. 0.2 mm above the compound layer, depending on the intended purpose.
At the same time, the oil distributing pockets are produced, if required. A further rolling calibration process then adjusts the necessary thickness tolerance of the composite material.

Important!

The materials P20, P22 and P23 contain lead and must therefore not be used in the food sector!

Plain bearing production

Sliding elements in a great variety of designs are produced from the composite material in cutting, stamping and shaping processes.

Standard designs are:

Cylindrical bushes
Thrust washers
Strips

In a final step, plain bearings manufactured from P20, P22 or P23 undergo corrosion protection treatment on the bearing back, face reliefs and striking faces.

Standard version: Tin
layer thickness: approx. 0.002 mm

Note: Tin is used as temporary corrosion protection and an assembly aid