Details
| Inner Diameter | 15 |
| Outer Diameter | 21 |
| Length | 12 |
Material Specification
| Structure | CuZn25Al6Mn4 Bronze with solid graphite lubricant inserts (alternative specifications are available on request) |
|---|---|
| PV (N/mm² x m/s) | 3.3 max |
| Static load (N/mm²) | 100 max |
| Sliding speed (m/s) | 0.3 max |
| Operating temperature (°C) | Up to 300 (alternative specs up to 400) |
| Coefficient of thermal expansion | 19 x 10-5/°C |
| Coefficient of friction | 0.16 |
| Hardness (HB) | 210 min |
| Tensile strength (N/mm²) | 750 min |
| Elongation (%) | 12 min |
| Density (g/cm³) | 8 |
Tolerances & Fittings (Metric)
| Min | Max | Tolerance | |
|---|---|---|---|
| Recommended Housing Size | 21 | 21.021 | H7 |
| Inside Diameter | 15.016 | 15.034 | |
| Overall Length | 11.7 | 11.9 |
Frequently Asked Questions
What are Bowman Oilless plain bearings?
Bowman Oilless plain bearings are made from rotational cast high-strength bronze and use specially formed graphite plugs as the lubricant. They are developed for high-load, low-speed applications.
How does graphite lubrication work?
The specially formed graphite plugs act as the lubricant within the bearing, providing lubrication for high-load, low-speed applications without requiring conventional lubricant.
What load and speed limits apply?
Bowman Oilless bearings are designed for high-load, low-speed applications. The specific load and speed limits depend on the bearing size and operating conditions, so contact Bowman for application-specific guidance.
What sizes are available?
WMO plain bearings are available in metric and imperial sizes from stock. Our in-house machining service can also produce non-standard sizes to suit specific customer requirements.
How do I request a quote?
Provide the required dimensions, quantity, and application details when requesting a quote. Bowman can support customers looking for Bowman Oilless plain bearings USA, including those looking to buy Bowman Oilless bearings North America. As an industrial Bowman Oilless supplier US, we can also advise on suitable options.
