Cutterhead Bearings


Composite Water Lubricated Cutterhead Shaft Bearings

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Thordon Composite has been consistently outperforming rubber in dredge cutterhead bearing applications since it was introduced in the 1970's. Composite bearing wear rates in dirty abrasive conditions are typically half that of rubber bearings reducing maintenance downtime over the life of the vessel.

Benefits:

  • Proven bearing wear life - lasting twice as long as rubber
  • Reduced maintenance down time
  • Water lubricated - no grease
  • Easy installation

Thordon Composite is a two component bearing formulated specifically for use in very abrasive environments such as water lubricated cutterhead shafts. The actual bearing surface is a soft black material that is homogeneous - no layers of differing materials and properties are consistent through the wall thickness. This black material is fused to a yellow, stiff, high strength polymer sleeve.

Composite bearings are available in a full range of sizes in both tube and stave configurations.







Design

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The final (fully finished) sizing of a Thordon elastomer or ThorPlas bearing can be determined by using the Thordon Bearing Sizing Calculation Program.

To download the Thordon Bearing Sizing Calculation Program Version 2017, Release 10, a user registration is required.

Request Bearing Sizing Program User Registration Number

Download Bearing Sizing Calculation Program (2.2 MB) Version 2017, Release 10

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    Thordon NewsWorks 2018

    Thordon’s web-based newsletter specifically developed for marine users of oil-free and grease-free bearings. This newsletter includes feature articles about seawater being the only commercially viable EAL, new class rules, and Thordon's SeaThigor seal.
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