Looking for a specific angular contact ball bearing? This is a single bearing with the part number 3210 ATN9. The key dimensions are an inner diameter (bore) of 50mm, an outer diameter of 90mm, and a width of 30.2mm. It's also compatible with or replaces other common numbers like 3210, 3210A, 5210, 3210-B-TVH, and 3056210. Angular contact bearings are designed to handle combined loads (both radial and axial) and are commonly used in applications like gearboxes, pumps, and high-precision machinery where accurate alignment and high-speed operation are needed. This is a replacement industrial component, so make absolutely sure these measurements and the part number match exactly what you're replacing. If you're a machinist, mechanic, or hobbyist working on equipment that uses this specific bearing, this is the part you need to get things running smoothly again.
