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Metallic Self-Lubricating (Lubrication Free) Bushings

ASTT90 Wrapped Bronze with thru holes Series AST’s metallic, self-lubricating bushings (lubrication free bushings) are made up of one of four basic compositions:

  • Strong Cast Bronze with Solid Lubricants
  • Bronze Wrapped Bushings
  • Bronze Powder with Steel Material
  • Sintered Bronze

More about each series is explained below.

Strong Cast Bronze with Solid Lubricants

The AST650 series bushing material consists of strong cast bronze as a base material and is combined with solid lubricants. This kind of material provides a maintenance-free solution and is particularly good for high load and intermittent of oscillating motion.

Bronze Wrapped Bushings

AST090 Series bushing material is provided with a uniform pattern of indents which act as grease reservoirs. The ASTT090 Series supplies lubricant through holes instead of indents which provide larger amounts of lubricant to be incorporated during operation.

Bronze Powder with Steel Material

The AST800 material is consist of the bronze powder and steel backed material, and the AST850 metal backed bronze with graphite lined bushing material, sintered layers are of special copper alloy containing uniformly dispersed solid lubricants. This series materials is supply for dry/marginal lubricated solutions.

Sintered Bronze

Our range of oil-impregnated sintered bronze bushings is intended for use in maintenance-free operations, under moderately high speeds and low loads.

AST has nearly 1,800 bushing models that are made of metallic materials and are self-lubricating. They are broken down into the following series. Click on each to learn more:

If you need help in selecting the best products for your particular application, please remember that design engineering and application assistance are available from AST as part of our value-added services designed to make your job easier.

Click here to go to our online catalog and product specifier for all of our bushings including free CAD downloads.

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