The McCormick 3540493M91 is a genuine OEM bearing designed for various Massey Ferguson and McCormick tractors and agricultural equipment. This high-quality ball bearing ensures smooth operation and durability, essential for critical machinery components. It features an outer diameter of 55 mm, an inner diameter of 25 mm, and a height of 22 mm, weighing approximately 0.23 kg. This bearing is a direct replacement for several superseded part numbers, guaranteeing compatibility and performance.