The KUHN 81003581 is a genuine groove ball bearing designed for various KUHN HR series rotary harrows. This essential component ensures smooth rotation and reduces friction in demanding agricultural applications. It features an inner diameter of 40 mm, an outer diameter of 80 mm, and a width of 18 mm, weighing approximately 0.42 kg. This high-quality bearing is crucial for maintaining the performance and longevity of your KUHN machinery.