Details
| Inner Diameter | 40 |
| Outer Diameter | 44 |
| Length | 16 |
| Backing Material | Standard Steel |
| Flange Thickness | 2 |
| Flange Diameter | 53 |
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 (Metric)
| Min | Max | Tolerance | |
|---|---|---|---|
| Flange Diameter Tolerance | 52.5 | 53.5 | |
| Inside Diameter When Fitted | 39.99 | 40.085 | |
| Recommended Housing Size | 44 | 44.025 | H7 |
| Overall Length | 15.75 | 16.25 | |
| Shaft Diameter | 39.95 | 39.975 | |
| Inside Chamfers | 0.1 | 0.7 | |
| Outside Chamfers | 0.8 | 1.6 |
Frequently Asked Questions
What is a WMU PTFE flanged bearing?
A WMU PTFE flanged bearing is a wrapped plain bearing with a PTFE lining and integrated flange. It is designed for applications requiring low friction and low wear, with the flange providing additional positioning and support within the assembly.
Can WMU PTFE flanged bearings run dry?
Yes. WMU bearings are designed for dry-running applications, making them suitable where continuous lubrication is not practical or required. Their PTFE-lined surface provides low-friction performance while helping minimize wear.
When should WMU PTFE flanged bearings be greased?
WMU PTFE flanged bearings are designed for dry running and generally do not require continuous grease lubrication. Whether additional lubrication is appropriate depends on the specific application, operating conditions, and bearing requirements.
What sizes are available?
WMU PTFE bearings are available in standard metric and inch sizes. Our in-house machining service can also produce non-standard sizes to meet specific customer requirements.
How do I request a quote?
Provide your required dimensions, quantity, application details, operating conditions, and any specific requirements when requesting a quote. As an industrial WMU PTFE supplier in the US, we support customers looking to buy WMU PTFE bearings in North America and can recommend a suitable solution for your application.
