Details
| Inner Diameter | 1.25 |
| Outer Diameter | 2.125 |
| Thickness | 0.062 |
| Backing Material | Standard Steel |
Material Specification
| Structure | S.A.E. 1010 steel backing strip with sintered bronze and PTFE layers |
|---|---|
| Max PV – Dry (N/mm² x m/s) | 1.8 |
| Max PV – Oiled (N/mm² x m/s) | 2.8 |
| Max Static load (N/mm²) | 250 |
| Max Dynamic load (N/mm²) | 140 |
| Max Sliding speed – Dry (m/s) | 2.5 |
| Max Sliding speed – With Oil (m/s) | 5 |
| Operating temperature (°C) | -200 to 280 |
| Thermal Conductivity (W/mk) | 42 |
| Coefficient of friction – Dry | 0.02 to 0.20 |
| Coefficient of friction – With Oil | 0.02 to 0.15 |
| Recommended shaft finish (Ra) | 0.04 max (N5) |
| Recommended shaft hardness (HB) | 200 min |
Tolerances & Fittings (Imperial)
| Min | Max | Tolerance | |
|---|---|---|---|
| Hole PCD | 1.682 | 1.692 | |
| Inside Diameter | 1.25 | 1.26 | |
| Outside Diameter | 2.115 | 2.125 | |
| Thickness Tolerance | 0.061 | 0.063 | |
| Location Hole Diameter | 0.161 | 0.171 |
Frequently Asked Questions
What is a WMU PTFE washer?
A WMU PTFE washer is made from carbon steel with a sintered bronze layer filled with PTFE. WMU PTFE thrust washers provide a self-lubricated bearing solution for a range of industrial applications.
Can WMU washers run dry?
Yes. The PTFE layer provides a low-friction surface suitable for dry-running applications. This makes WMU PTFE thrust washers a suitable option when a dry running washer USA customers can use is required.
What axial loads do these handle?
The axial load capacity depends on the washer dimensions, operating conditions, and application. Contact Bowman for guidance on selecting WMU bearings for your specific load requirements.
What sizes are available?
WMU bearings are available in metric and imperial sizes from stock. Bronze and stainless steel-backed versions can also be supplied to order. Non-standard sizes can be produced through our in-house machining service.
How do I request a quote?
Please provide your required dimensions, quantity, and application details when requesting a quote. Bowman is an industrial WMU supplier US customers can contact for standard and custom requirements, including customers looking to buy WMU bearings North America. We can also provide information on WMU bearings USA requirements.
