Details
| Inner Diameter | 5 |
| Outer Diameter | 5.1875 |
| Length | 3.75 |
| 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 | |
|---|---|---|---|
| Inside Diameter When Fitted | 4.9988 | 5.0056 | |
| Recommended Housing Size | 5.1844 | 5.186 | |
| Overall Length | 3.74 | 3.76 | |
| Shaft Diameter | 4.9961 | 4.9986 |
Frequently Asked Questions
What is a WMU PTFE bearing?
A WMU PTFE bearing is a wrapped plain bearing with a PTFE lining designed for dry-running applications. WMU PTFE plain bearings provide low-friction, low-wear performance and are suitable for a range of industrial applications.
How does the PTFE lining work?
The PTFE lining provides a low-friction sliding surface between the bearing and mating components. This allows a dry running sleeve bushing to operate without continuous lubrication, helping reduce friction and wear in suitable applications.
What are the load and speed limits of WMU bearings?
The load and speed limits for WMU bearings depend on factors such as bearing dimensions, operating conditions, temperature, and application requirements. Our team can assess the required load and speed conditions to help select the appropriate WMU specifications.
What sizes are available for WMU PTFE bearings?
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 Bowman WMU PTFE solution.
