The Rexnord ZA series roller bearing pillow block is built for carrying shafts with radial or combination radial and thrust loads. The two-bolt cast iron housing with steel roller bearing insert provides ready-to-mount installation. The solid one-piece housing is built for maximum strength and rigidity. The clearance seals protect against contamination and help retain lubricant. It can be relubricated if necessary. A non-expansion-type bearing with setscrew locking collar provides a secure attachment to a guided shaft. The pillow block can be field adjusted to meet application needs.

Mounted bearings combine a bearing mounted inside a housing unit. The bearing housing replaces the need for a casting or weldment to position the bearing securely for reliable operation, and its design determines the type of insert bearing. Insert bearings use rolling elements (ball, cylindrical, spherical, barrel, needle, spindled, or tapered) to maintain the separation between moving parts to reduce rotational friction, and to support radial and axial loads. Available in a variety of materials and mounting configurations, mounted bearings can be one- or two-piece, they can have an extended inner ring and locking device, and they can have seals and end caps that retain lubrication and protect the working parts of the bearing from environmental debris. Mounted bearings support shafts in a variety of mounting configurations (flange block, hanger, pillow block, and take-up block), and are used in a range of applications from light duty shaft guidance on conveyors to road building equipment and crushers.

Rexnord manufactures power transmission components under brands such as Link-Belt, Thomas, and Stearns, and water management products under brands such as VAG and Zurn. The company is headquartered in Milwaukee, WI.