Ball bearings operate with less friction than other bearings, so they can run at higher speeds. Mounted Sleeve Bearings With no moving parts, sleeve bearings are the simplest type of bearing.
Ball bearing units . Pillow block ball bearing units . Flanged ball bearing units . Take-up ball bearing units . Take-up units to ISO standards . Take-up units to North American standards . Take-up units to Japanese Industrial Standards (JIS) Take-up units, not standardized (SKF Food Line) Ball bearing unit data . 

Pillow Block Housings Pillow block housings are mounts that house bearings. Bearings along with pillow block housings support shafts, dampen vibration, reduce friction, carry heavy loads, compensate for misalignment, and allow heavy objects to move along a single plane. Pillow blocks come in one-piece or two-piece forms and may be opened or closed.