The John Deere JD9421 Ball Bearing is an authentic OEM component designed for reliable performance in a wide range of John Deere agricultural equipment. This high-quality ball bearing features an inner diameter of 20 mm, an outer diameter of 47 mm, and a width of 14 mm, ensuring precise fit and smooth operation. It is commonly used in balers, combines, cotton pickers, forage harvesters, headers, mower conditioners, and windrowers, providing essential support for rotating parts. Trust genuine John Deere parts for durability and optimal machine function.