AST850BM Metal Backed Bronze Powder and Solid Lubricants Series - Metric
AST850BM Series Structure
The AST850BM Series Bushings are metal backed with bronze graphite oil-less bushings and have the following layers:
- Sinter bronze powder with graphite: good wear resistance with lower friction and excellent load carrying capacity. Can be machined after fitting to get precision tolerance. AST also can supply the bearings with PTFE or graphite sprayed layer on the work surface to get much lower start friction.
- Metal backing: gives exceptionally high load carrying capacity, excellent heat dissipation.
- Copper plating 0.002mm, providing good corrosion resistance.
AST850BM Series Features
The AST850BM Series are metal backed bronze with graphite lined materials, sintered layers are of special copper alloy containing uniformly dispersed solid lubricants. The solid lubricant will be released at the bearing surface as wear occurs. To aid the running-in process, a thin film of solid lubricant can be applied to the bearing surface. This will ensure a consistently low coefficient of friction with total freedom from stick-slip, even from initial assembly. The inner side can be machined after the parts fixed to get high tolerance.
The AST850BM bushings we supply have a plain surface as standard; however, we also supply them with cleaning grooves (for small angular movements or in the presence of abrasive media or dirt), and with an indented surface (for grease lubricated applications).
Typical Applications for the AST850BM Series
The special structure of the AST850BM material makes it suitable for hostile environments and for high load application where lubrication is difficult to apply and maintain. The AST850BM Series is ideally suited for use in water turbines, vane controls, injection molding machinery, packing machines, construction equipment, tire moulds, paper production machinery, furnace expansion plates, automotive transmission, heavy lifting chain linkage, and food production equipment.
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.
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