5300 Series Open Double Row Angular Contact Ball Bearing - (55x120x49.20 mm)

5311 is a 5300 series open double row angular contact ball bearing with a 55 mm bore, 120 mm outside diameter, and 49.20 mm width. Designed with a heavy 5300 series profile, two rows of steel balls, and angular contact raceways to carry combined radial and axial loads in larger rotating assemblies. The open construction allows direct lubrication access and is best suited for protected housings, gear cases, or equipment with a planned lubrication system. Commonly used in gearboxes, pumps, machine tools, drive shafts, and heavy-duty industrial machinery. Product Specifications: Bearing Type: Open Double Row Angular Contact Ball Bearing Part Number: 5311 Series: 5300 Series Inner Diameter (ID): 55 mm Outer Diameter (OD): 120 mm Width (W): 49.20 mm Closure Type: Open Load Direction: Radial and Bi-Directional Axial Loads Precision Rating: ABEC 1 Material: Chrome Steel Lubrication: Requires Application Lubrication Applications: Gearboxes Pumps Machine tools Drive shafts Heavy-duty industrial machinery