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solid bronze bearing material
allows for clean operation
They are available in plastic
the teeth are cut into the inside diameter while the outside diameter is kept smooth
B1420-12 Oil Impregnated Bronze Sleeve Bearing 204 solid bronze bearing materialBost Bronz is Boston Gears all purpose, oil impregnated, porous bronze bearing material. It is manufactured using the powdered metal process with the purest metal powders. This process ensures the uniform distribution of pores between the bronze particles which absorb the oil by capillary action. In addition, Bost Bronz has a self contained oil supply (approximately 20% by volume) which provides a uniform protective film over the entire bearing
