WMU® Washers

WMU® Washers from Bowman

WMU® Washers from Bowman

Bowman WMU® PTFE lined thrust washers are engineered to provide reliable axial load support in applications where low friction, excellent wear resistance, and maintenance-free operation are essential. Manufactured with a robust carbon steel backing, a porous sintered bronze intermediate layer, and a low-friction PTFE-based sliding surface, these steel backed thrust washers are designed to perform in demanding environments while eliminating the need for continuous lubrication. The composite construction combines high load capacity with outstanding resistance to wear, making them an ideal solution for oscillating, slow-speed, and dry-running applications.

Available in a comprehensive range of WMU thrust washer sizes, Bowman supplies both metric and imperial dimensions from stock to support fast delivery and reduced lead times. For applications with specific environmental or corrosion resistance requirements, bronze-backed and stainless steel-backed versions can also be manufactured to order. As an experienced PTFE washer manufacturer, Bowman also offers an in-house machining service capable of producing bespoke washers in non-standard dimensions to suit individual customer requirements, prototypes, or specialised OEM applications.

These low-friction thrust washers are widely used to support axial loads in hydraulic equipment, construction machinery, agricultural equipment, marine systems, industrial gearboxes, pumps, valves, lifting equipment, and general engineering applications. Their sintered bronze PTFE washer construction provides excellent sliding characteristics, low wear rates, and dependable performance under high loads without the need for external lubrication. This makes them particularly suitable as dry running thrust washers where grease contamination is undesirable or routine maintenance is difficult.

Whether you require standard axial thrust washers UK for production or custom-manufactured components for a specialist application, Bowman delivers precision-engineered solutions backed by decades of bearing expertise. With extensive stock availability, rapid manufacturing capabilities, and expert technical support, Bowman helps customers specify the right thrust washer solution to maximise equipment reliability, reduce maintenance, and extend service life across a wide range of industrial applications.

Matching Bearings

Material Unit Measurement Part Number Inner Diameter Outer Diameter Thickness Backing Material Tolerance Range Action Button
WMU® PTFE Lined Bearings Metric WMUW 10 20 1.5 10 20 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 12 24 1.5 12 24 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 14 26 1.5 14 26 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 16 30 1.5 16 30 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 18 32 1.5 18 32 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 20 36 1.5 20 36 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 22 38 1.5 22 38 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 24 42 1.5 24 42 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 26 44 1.5 26 44 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 28 48 1.5 28 48 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 32 54 1.5 32 54 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 38 62 1.5 38 62 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 42 66 1.5 42 66 1.5 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 48 74 2 48 74 2 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 52 78 2 52 78 2 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 62 90 2 62 90 2 Standard Steel
WMU® PTFE Lined Bearings Metric WMUW 95 115 2 95 115 2 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 06 0.5 0.875 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 07 0.562 1 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 08 0.625 1.125 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 09 0.687 1.187 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 10 0.75 1.25 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 11 0.812 1.375 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 12 0.875 1.5 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 14 1 1.75 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 16 1.125 2 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 18 1.25 2.125 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 20 1.375 2.25 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 22 1.5 2.5 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 24 1.625 2.625 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 26 1.75 2.75 0.062 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 28 2 3 0.092 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 30 2.125 3.125 0.092 Standard Steel
WMU® PTFE Lined Bearings Imperial WMUWI 32 2.25 3.25 0.092 Standard Steel

Frequently Asked Questions

If the answer to your question is not listed below, please feel free to give us a call directly on +44 (0)1235 462500 or email us at sales@bowman.co.uk.

What is a PTFE lined thrust washer?

A PTFE lined thrust washer is a low-friction bearing component designed to support axial loads while allowing smooth rotational or oscillating movement. Bowman's WMU® washers feature a carbon steel backing, a porous sintered bronze layer, and a PTFE-based sliding surface, providing excellent wear resistance, low friction, and maintenance-free performance in demanding applications.

What sizes of WMU® washers are available?

Bowman supplies WMU® thrust washers in a comprehensive range of metric and imperial sizes from stock. This broad size range allows the washers to suit a wide variety of industrial applications while ensuring fast availability and reduced lead times.

Can I order non-standard WMU® washer sizes?

Yes. Bowman offers an in-house machining service to manufacture WMU® washers in bespoke dimensions. Non-standard inside diameters, outside diameters, thicknesses, and other custom specifications can be produced to meet the requirements of OEMs, replacement parts, and specialised engineering applications.

What backing materials do WMU® washers come in?

Standard WMU® washers are manufactured with a carbon steel backing. For applications requiring enhanced corrosion resistance or specific performance characteristics, Bowman can also supply bronze-backed and stainless steel-backed versions to order.

Where are PTFE lined thrust washers used?

PTFE lined thrust washers are widely used wherever reliable axial load support and low-friction operation are required. Typical applications include hydraulic equipment, construction machinery, agricultural machinery, marine systems, pumps, valves, gearboxes, lifting equipment, industrial automation, and general engineering applications where long service life and minimal maintenance are essential.

Looking for a custom size or special specifications?

Whether you need standard or custom options, we’re here to help. Reach out now and let’s find the perfect match!