Timken QATU15A300SM Take-Up Mounted Bearing Unit

The Timken QATU15A300SM Take-Up Mounted Bearing Unit provides shaft support and automatic belt or chain tension adjustment in heavy-duty take-up systems. Built around a spherical roller bearing (22215) housed in a solid-block take-up housing, it uses a single concentric locking collar to secure a 3.0000 in (76.2 mm) shaft. This unit is designed for accurate shaft alignment and controlled tension in conveyor and material handling applications, including belt conveyors, bucket elevators, quarry equipment, mining machinery, and cement plants, where heavy radial loads and harsh environments are common. Key specifications include dynamic load rating 49,900 lbf (222,000 N), static load rating 54,100 lbf (240,000 N), float 0.08 in (2.03 mm), and lubrication speeds of 1,600 rpm for both grease- and oil-sealed configurations. The housing is a cast unit with a high-grade bearing steel insert to withstand industrial service. Common replacements include QAATU15A300SM and QATU15A300S, aligning with Timken’s mounted take-up family for reliable upgrades in conveyor and material handling take-up systems.