Bearing, 3/4" W/Locking Collar 539000315

This steel bearing is an OEM replacement for aerators and has a .75-inch inner-diameter. Bearings have tiny balls within them which are used to distribute weight evenly and minimize friction between two moving parts. It is sold individually but comes with a .75-inch inner-diameter locking collar as well, although a stamping kit is sold separately. The locking collar is used to tighten the bearing on the shaft, to reduce the effects of vibrations during operation, like slipping. It is made of high-quality metal but is considered a high-wear part meaning it will likely need to be replaced often.