Flange Bearings

Flange-mount bearings support heavy loads when the shaft axis is perpendicular to the mounting surface, which can flex the shaft and create harmful vibration. To stabilize and support the shaft, flange-mount bearings are mounted in one of three flange forms. Four-bolt flange-mount bearings can support the highest loads. They come in a square or circular flange shape. Three-bolt flange-mount bearings support moderate loads and come in a circular form or triangular form offset from the round bearing. Two-bolt flange-mount bearings, which offer the least support, come in a diamond shape. Flange-mount bearings also use different types of bearings for different applications. Roller bearings offer higher load support, ball bearings decrease friction and operate at faster speeds, and plain bearings control the shaft's linear movement.