The JCB 10904158 is a genuine OEM bearing designed for a wide range of JCB machinery. This high-quality 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 compatible with JCB 3CX and 4CX backhoe loaders, numerous 500 series telehandlers (e.g., 520, 525, 530, 540), and various JS and JZ series excavators (e.g., JS110, JS130, JS220, JZ70). Essential for maintaining optimal function and durability in demanding agricultural and construction applications.