
An Overview of Bowman Oilless® Bearings
Oilless Bearings Suppliers for High-Load Applications
Bowman Oilless® Bearings – Solid Lubricant Bearings for Extreme Environments
As trusted oilless bearings suppliers, Bowman Oilless® Bearings provide a reliable, maintenance-free solution for high-load, low-speed applications where traditional lubrication is impractical.
Our solid lubricant bearings are graphite loaded and capable of operating in temperatures up to 400°C (800°F) and cryogenic conditions down to -200°C (-400°F), depending on material selection. Read More
Bowman Oilless® Bearing Specifications
| 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 |
Key Strengths of Bowman Oilless® Self-Lubricating Bearings

Stable Molecular Structure
Engineered with a robust molecular design, ensuring strength, stability, and resistance to deformation.

High Load Capacity
Designed to support substantial loads, providing reliable performance under heavy pressure.

Long-Lasting Lubrication
Incorporates solid lubricants for continuous, self-lubricating performance over extended periods.

Minimal Maintenance
Requires infrequent servicing, reducing downtime and operational costs.

Low Friction Operation
Delivers smooth, efficient motion with reduced energy loss and wear.

Suitable for Low-Speed Uses
Ideal for slow-moving applications requiring consistent, reliable performance.
Frequently Asked Questions
If the answer to your question is not listed below, please feel free to give us a call directly on +44 (0)1235 462500 or email us on sales@bowman.co.uk.
What are Bowman Oilless® Bearings?
Bowman Oilless® Bearings are self-lubricating bearings made of high-strength bronze with graphite plugs for continuous lubrication, designed for high-load, low-speed applications.
Which industries commonly use Bowman Oilless® Bearings?
These bearings are widely used in kilns, dryers, injection moulding machines, hot conveyors, and other demanding environments.
Do Bowman Oilless® Bearings need regular maintenance?
No, they are self-lubricating and designed to operate maintenance-free throughout their lifespan.
Are Bowman Oilless® Bearings customizable for specific applications?
Yes, our technical team can help you select the most suitable material and design for your application.
What is the operating temperature range of Bowman Oilless® Bearings?
Bowman Oilless® Bearings can operate in temperatures ranging from -200°C (-400°F) to 400°C (800°F), depending on the material selected. Their graphite-loaded design makes them suitable for both high-temperature and cryogenic applications.








