This tapered roller bearing sits in the steering knuckle of the host tractor, carrying the radial and axial loads transmitted from the wheel hub to the axle assembly. It uses a cone-and-cup design where the tapered rollers roll between the inner and outer raceways, allowing the knuckle to pivot smoothly under steering input. Wear in this bearing produces detectable play at the wheel and a knocking sensation when turning at low speed. The original AGCO part is machined to the same raceway angle and cup-backing shoulder height as the factory assembly, so the preload stack and steering-geometry alignment are preserved without shimming. On installation, clean the knuckle bore and spindle, apply grease to the rollers, and torque the spindle nut to the specified preload setting.