The Landini 339440X1 is a genuine OEM ball bearing designed for critical applications in agricultural machinery. This robust bearing features an inner diameter of 40 mm, an outer diameter of 80 mm, and a width of 18 mm, ensuring precise fitment and reliable performance. It is a multi-brand compatible component, serving as a direct replacement for various Landini, Massey Ferguson, McCormick, Fendt, and Valtra tractor models, providing essential support and reducing friction in rotating assemblies.