B1821-16 Oil Impregnated Bronze Sleeve Bearing 0.437" ID It is equally important that

It is equally important that worms and worm gears used together must have the same diametrical pitch and threads

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

Many are available with or without hubs

Click here for spec sheets: SSBSRFB Spec Sheet

Reduction Type: Single Reduction Right Angle

B1821-16 Oil Impregnated Bronze Sleeve Bearing 0.437" ID It is equally important thatBost 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