Oilless Bearings

Bowman Oilless® Bearings - the WMO Range

Our WMO range of oilless bearings are the perfect solution for projects where lubrication cannot easily be provided or where conventional lubricants may carbonise. The design of oil feeding systems is time consuming and expensive - The use of our oilless bearings can greatly reduce costs of maintenance and oil as it removes any need for such a system.

Bowman Oilless bearings have been developed for high load, low speed applications and are made of rotational cast high-strength bronze using a specially formed graphite plug as lubricant.

Our oilless bearings are graphite loaded and can withstand temperatures of up to 400°C (800F) as well as cryogenic temperatures down to -200°C (-400°F) depending on which material is selected.

Typical applications include, but are by no means limited to:

  • Kilns
  • Dryers
  • Injection moulding machines
  • Dust collectors
  • Louvres
  • Hot conveyors

Bowman oilless bearings benefit from outstanding chemical and corrosion resistance. The lubricant used in these bearings is formed from abrasion resitant materials (such as graphite, PTFE etc) and has a stabilised molecular structure.

These oilless bearings are suitable for dry environments where contamination is a risk, wet applications where there is high humidity and applications where the bearing is in an inaccessible location. Bowman Oilless bearings are lubricated for life!

Please feel free to get in touch with our technical to ascertain which would be the most suitable combination to suit your application.

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


Bowman Oilless® Plain Bearings

WMO Oilless Plain Bearings

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Bowman Oilless® Flanged Bearings

WMO Oilless Flanged Bearings

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Bowman Oilless® Washers

WMO Oilless Washers

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Bowman Oilless® Plates

WMO Oilless Plates

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