The Case-IH 5181866 is an authentic OEM ball bearing, precisely engineered with an inner diameter of 40mm, an outer diameter of 80mm, and a width of 18mm. This robust component is designed to ensure smooth and reliable rotational performance across a wide range of Case-IH agricultural and construction equipment, including various Maxxum, Puma, Axial-Flow, and Farmall models. Its durable construction provides essential support and reduces friction, contributing to the longevity and efficient operation of critical machinery systems.