B1620-10 Oil Impregnated Bronze Sleeve Bearing 2.563" ID the teeth are cut into

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

Friction discs are then released and free to rotate with the hub and motor shaft

Click here for spec sheet: SB Spec Sheet

quietest form of gearing when properly applied

B1620-10 Oil Impregnated Bronze Sleeve Bearing 2.563" ID the teeth are cut intoBost 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