聯軸器，電源饋入

Installed this on my mill's X-axis and the roll pin lined up perfectly with the motor shaft slot. The setscrews feel solid and haven't budged after a few hours of use. Exactly what I needed to get the power feed running smoothly.

The setscrews held tight on the first try with no stripping, and the roll pin fit snugly into the coupler. This made hooking up the power feed motor to the X-axis screw a quick, frustration-free job. Exactly what I needed to get my mill back in operation.

The threads on the setscrews lined up perfectly with my machine, making installation about as straightforward as it gets. This coupling feels solid and precise, exactly what I needed to eliminate the slight wobble I was getting from the old connection.