The Timken Company STO-12-ZZ Needle Roller Bearing

The Timken STO-12-ZZ crowned outside diameter yoke-type needle roller bearing with double shields (ZZ) supports cam, track, and guide roller applications, delivering high radial load capacity and smooth rolling in industrial machinery while protecting against contamination and tolerating slight misalignment. It features a 12 mm bore, 32 mm outside diameter, 16 mm overall width, and a 15.8 mm roller width, with needle rollers as the rolling elements and a dynamic load rating of 9.13 kN and static load rating of 11.7 kN, plus a maximum grease speed of 8,100 rpm. Common applications include conveyor guide rails, cam followers, indexing equipment, automation systems, textile machinery, and other track roller systems requiring compact, heavy-duty performance.