Details
| Inner Diameter | 22 |
| Outer Diameter | 25 |
| Length | 30 |
| Backing Material | Bronze |
Material Specification
| Structure | CuSn8 backing strip with sintered bronze & 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 | |
|---|---|---|---|
| Inside Diameter When Fitted | 21.99 | 22.071 | |
| Recommended Housing Size | 25 | 25.021 | H7 |
| Overall Length | 29.75 | 30.25 | |
| Shaft Diameter | 21.959 | 21.98 | |
| Inside Chamfers | 0.1 | 0.7 | |
| Outside Chamfers | 0.2 | 1 |
Frequently Asked Questions
What is a WMUB plain bearing?
A WMUB plain bearing is a wrapped bearing featuring a bronze backing and PTFE-lined surface. Designed for low-friction operation and minimal wear, WMUB bearings are suitable for demanding industrial applications, including dry-running conditions.
What are the benefits of POM composite lining?
A POM composite lined sleeve bushing offers low friction, good wear resistance, and reliable performance under demanding operating conditions. Depending on the application, composite lining can help reduce maintenance requirements and support consistent bearing performance.
What loads and speeds can WMUB bearings handle?
The load and speed capabilities of WMUB bearings depend on factors such as bearing dimensions, operating conditions, lubrication, temperature, and application requirements. Our team can help determine the appropriate WMUB specification based on your required load and speed.
What sizes are available for WMUB bearings?
WMUB bearings are available in standard metric and inch sizes. For applications requiring specific dimensions, our in-house machining capabilities allow us to produce non-standard sizes to meet customer requirements.
How do I request a quote for WMUB bearings?
To request a quote, provide your required dimensions, quantity, application details, and operating conditions. As an industrial WMUB supplier in the US, we support customers looking to buy WMUB bearings in North America and can recommend the appropriate Bowman WMUB solution for their application.
