This needle roller bearing supports the gearbox countershaft and maintains gear alignment under load. It sits between the shaft and the housing bore, allowing the shaft to rotate freely while carrying radial loads from the engaged gears. A worn bearing produces audible whine or rattle in neutral and can cause gear clash during shifting. As an original AGCO component, its roller cage and raceway dimensions match the housing bore and shaft journal tolerances used in the original gearbox assembly, so no shimming or selective fit is required during replacement. Clean the housing bore and shaft journal before installation, and apply gearbox oil to the rollers during assembly.