This brake shoe is the friction component inside the drum brake assembly on the host combine harvester. It converts hydraulic pressure from the wheel cylinder into mechanical clamping force against the drum to slow or stop the wheel. The shoe carries a friction lining that contacts the drum's inner surface; wear on this lining reduces braking force and increases pedal travel before engagement. This part is manufactured to match the original assembly's arc radius and lining thickness, which ensures even contact pressure across the drum surface without requiring shimming or adjustment beyond the standard star-wheel adjuster. On reinstallation, ensure the return springs are correctly seated and the shoe ends engage the wheel cylinder pistons and anchor pin properly.