RBC Bearings SJ-8477A75 Needle Roller Bearing

RBC Bearings SJ8477A75 Pitchlign heavy-duty needle roller bearing delivers high-load performance in a compact package. This single-row, precision-ground needle bearing features a 2.75 in bore, a 3.50 in outside diameter, and a 1.75 in overall width, designed for installation in tight spaces while carrying substantial radial loads. The Pitchlign SJ series is engineered for heavy-duty applications where needle rollers provide a high load capacity in a slender profile, making it suitable for demanding industrial machinery and aerospace equipment. The SJ8477A75 variant is commonly specified with a load rating around 48,400 lb and supports speeds up to 4,800 rpm, enabling reliable operation in equipment such as actuators, cam-followers, and other compact motion components that require precise alignment and stiffness. With a one-row needle roller design and precision-ground construction, this bearing aims to maintain tight tolerances and stable geometry under load in constrained environments.