21 Spline Iron Pin Yoke, For Agriculture

A 21t pin yoke, commonly used in agricultural machinery like rotavators, is a component with 21 teeth (splines) that engages with a matching shaft, typically the PTO (Power Take-Off) shaft. It's designed for secure connection and power transmission between the tractor and the implement. The "pin" part refers to a spring-loaded pin that secures the yoke to the shaft.