B1721-8 Oil Impregnated Bronze Sleeve Bearing 19mm ID Note: Because the efficiency of

Note: Because the efficiency of a worm gear drive depends on the lead angle and number of starts on the worm

When used with Boston Gear worms

Material: Bronze

Includes 2 rubber grommets to reduce vibration & noise

B1721-8 Oil Impregnated Bronze Sleeve Bearing 19mm ID Note: Because the efficiency ofBost 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