Bearing Depot & Supply stocks a full line of flanged bearings available in 2-Bolt, 3-Bolt, and 4-Bolt block and mounted. The bearing units consist of ball or roller bearing installed within a housing. The housings are mostly made of cast iron which provide rigidity and secure positioning for the bearing within the application. Secured by bolts, the bearing unit is high-quality and will last a long time in the application of many kinds, decreasing noise and friction. Also available in stainless and thermo plastic housings.