SKF
Thrust Washers
SKF thrust washers are flat, disc-shaped plain bearings that carry axial loads between rotating or oscillating components. They are produced in the same advanced composite materials as cylindrical bushings (PTFE-based, POM-based) as well as sintered bronze. Typical applications include automotive kingpin thrust washers, hydraulic pump swashplate supports, and gearbox thrust faces. The washers are thin and lightweight, fitting into spaces too tight for rolling thrust bearings. Self-lubricating composite washers eliminate the need for axial grease supply, simplifying assembly and maintenance. SKF thrust washers are available in standard metric sizes, and custom dimensions can be machined from strip stock. They operate quietly, absorb vibration, and provide consistent low friction over their service life.
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High Axial Load Capacity
Distributes thrust force evenly, prevents metal-to-metal contact.
Dry Running
PTFE and POM composites require no lubrication.
Vibration Dampening
Polymer matrix absorbs shocks and reduces noise.
Corrosion-Free
Impervious to water, oil, and most chemicals.
Thin Profile
Minimal thickness saves axial space in compact assemblies.
Machinable
Custom diameters and notch features can be created from standard plates.
Thrust Washer Applications in Automotive Steering Knuckles
The kingpin thrust washer in a truck steering knuckle withstands high axial weight and steering torque with minimal lubrication. SKF’s composite thrust washers reduce steering effort by lowering friction and eliminate the corrosion and scoring that plague steel-backed washers.
Selecting Thrust Washer Material for Wet Environments
In marine steering systems or water pumps, POM-based thrust washers offer excellent dimensional stability and low friction even when submerged. SKF’s material selection charts indicate which grades are suitable for continuous water exposure without swelling.