ocr: CRANKS WHEEL DRIVE When a wheel drivesa DRIVE WHEEL crank, the rotation of the wheel is converted toa a back-and-forth movement of the rod. CRANK ROD ROD DRIVE With a rod drive, a - crank CRANK. converts back-and-Forth movements into rotation. When the rod moves backward and forward, DRIVING- the crank wheel rotates. ROD WHEEL
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