Coupling, Shaft, 10-10-30 mm

Took a gamble on this since the original was hard to source, but the 10mm bore on both ends matched my SX3.5 perfectly and it slid on without any filing. The 30mm length gives just enough room for the set screws to bite firmly, and the Z-axis runs smooth and quiet now.

Finally got the Z-axis on my mill running smooth again after replacing this shaft coupling. The 10-10-30 mm dimensions matched perfectly with the original part. No more wobble during heavy cuts—exactly what I needed.

Fit the Z-axis motor shaft on my bench mill perfectly, no wobble at all once the set screws were snugged down. The 10mm bore on both ends lined up exactly with the motor and lead screw. Runs smooth through the full travel now.