The NTN 21313D1C3 is a high-quality spherical roller bearing manufactured by NTN, designed for heavy-duty applications in industrial and agricultural machinery. This genuine bearing features a 65mm bore diameter, 140mm outer diameter, and a 33mm width. It incorporates a C3 internal clearance, which is greater than normal, making it suitable for applications involving high temperatures, rapid acceleration, or potential shaft misalignment. The D1 designation typically refers to a pressed steel cage, ensuring robust performance and durability under significant radial and axial loads.