This SET1185NO aftermarket tapered roller bearing is a high-quality, non-original replacement component designed for various agricultural, construction, and industrial machinery applications. Engineered to meet the specifications of standard 31309 and FAG 31309-A bearings, this part offers a reliable and cost-effective alternative to OEM components. It is not an original Timken part but a compatible replacement. Tapered roller bearings are crucial for supporting both radial and axial loads simultaneously, making them ideal for demanding environments where heavy loads and precise rotational accuracy are required. The design features tapered inner and outer ring raceways between which tapered rollers are arranged, allowing for efficient load distribution and reduced friction. With precise dimensions of 45mm inner diameter, 100mm outer diameter, and 27.25mm width, this SET1185NO bearing ensures a perfect fit and optimal performance in systems originally designed for 31309 series bearings. It is commonly found in wheel hubs, gearboxes, differentials, and other rotating assemblies in tractors, harvesters, construction equipment, and industrial gear drives. Choosing this aftermarket SET1185NO bearing provides a durable solution for maintenance and repair, helping to restore machinery functionality without the premium cost associated with original equipment manufacturer parts. It is manufactured to stringent quality standards to ensure longevity and dependable operation in challenging working conditions.