Dry metal plain bearings lead-free

- steel / ACETAL coated

- copper-plated / tin-plated

1) ACETAL lead-free with MOS₂, 0.01 ~0.03mm
2) Porous Bronze, 0.2 ~0.3mm
   (CuSn8Zn3: Sn<=8%; Zn<=3%; Other <=1%
    Cu=Balance)
3) steel back, 0.7~2.3mm
4) copper or tin coating 0.005mm~ 0.008mm

 Application

Lead-free Dry metal plain bearings are coated with a ACETAL MoS₂ gliding layer. They are also used in radial applications with medium to high loads.

On request we can offer special lengths, different ACETAL layers for various applications and different backs in bronze or stainless steel.

Lubrication

Dry metal standard plain bearings, disks or sheet metal plates must not be lubricated with oil containing molybdenum. MoS₂ leads to a chemical reaction, which causes the ACETAL layer to melt. Dry metal plain bearings can be used dry, but when using oil lubrication, we recommend lithium-based oils.

Installation / Assembly

Dry metal standard plain bearings should not be machined (no drilling or grinding) on ​​either the inner or outer diameter. They are already prepared for assembly. The plain bearings are designed so that the connection gap can be eliminated when the plain bearing is pressed into the housing. However, the connection point of the plain bearing should be positioned away from the load zone. Press the plain bearing slowly, straight and concentrically into the housing. Use a press and make sure that the inner surface of the plain bearing is not damaged. Thrust washers and sliding plates (foils) can be screwed or glued.

Separating or shortening

Plain bearings should be machined from the inside out. This reduces separation of the four layers. Therefore, always start with the softer layer and work towards the harder layer. This also helps to keep burrs in the right direction.

Characteristics

– suitable for dry running
– low coefficient of friction
– hydrodynamic operation possible
– low wear
– good gliding properties
– well suited for rotation and oscillation
– resistant to many chemicals
– no absorption of water, therefore no swelling

Technical Information
– Mechanical properties

Plain bearing description (detailed)

Tolerances (recommended)