Details
| Inner Diameter | 12 |
| Outer Diameter | 24 |
| Thickness | 1.5 |
Material Specification
| Structure | S.A.E. 1010 steel backing strip with sintered bronze and Acetal Copolymer layers |
|---|---|
| Max PV (N/mm² x m/s) | 2.8 |
| Max Static load (N/mm²) | 140 |
| Max Dynamic load (N/mm²) | 70 |
| Max Sliding speed – With Grease (m/s) | 2.5 |
| Operating temperature (°C) | -40 to 110 |
| Thermal Conductivity (W/mk) | 2 |
| Coefficient of friction – With Grease | 0.05 to 0.15 |
| Recommended shaft hardness (HB) | 200 min |
Tolerances & Fittings (Metric)
| Min | Max | Tolerance | |
|---|---|---|---|
| Hole PCD | - | - | 18 |
| Inside Diameter | 12 | 12.25 | - |
| Outside Diameter | 23.75 | 24 | - |
| Thickness Tolerance | 1.45 | 1.5 | - |
| Location Hole Diameter | 1.60 | 1.90 | - |
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 an acetal lined thrust washer?
An acetal lined thrust washer is a composite bearing component designed to support axial loads while providing low-friction movement in lubricated applications. Bowman WMX® washers feature a carbon steel backing, a porous sintered bronze interlayer, and an acetal co-polymer sliding surface, offering excellent wear resistance, durability, and reliable performance in rotary and oscillating applications.
When should I use acetal instead of PTFE for a thrust washer?
Acetal-lined thrust washers are best suited to wet-running or grease-lubricated applications involving higher loads and rotary or oscillating motion. PTFE-lined washers are generally preferred for dry-running applications with little or no lubrication. The choice depends on the operating environment, load, speed, and lubrication conditions.
Can WMX® washers run in wet or lubricated conditions?
Yes. WMX® POM thrust washers are specifically designed for wet-running and lubricated environments. Their acetal co-polymer sliding surface delivers low friction, excellent wear resistance, and long service life when operating with grease or other suitable lubricants.
What sizes of WMX® washers are available?
Bowman supplies WMX® washers in a comprehensive range of standard metric and imperial sizes to suit a wide variety of industrial applications. Standard stock sizes enable fast delivery, while technical support is available to help select the correct washer for your application.
Can I order custom WMX® washer sizes?
Yes. Bowman offers an in-house machining service to manufacture WMX® washers in bespoke dimensions. Custom internal diameters, external diameters, thicknesses, and other specifications can be produced to meet the requirements of OEMs, replacement parts, and specialised engineering applications.
