B1822-20 Oil Impregnated Bronze Sleeve Bearing 1-1/4"-7 Thread Boston Gear change gears are

Boston Gear change gears are used primarily on machine tools to provide different cutting speeds while using a constant speed input

Bost-Bronz® bearings are also highly versatile and can be used for production and replacement requirements throughout general industry

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including plain

the teeth are cut into the inside diameter while the outside diameter is kept smooth

B1822-20 Oil Impregnated Bronze Sleeve Bearing 1-1/4"-7 Thread Boston Gear change gears areBost 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