Description These are flexible shaft couplings – particularly useful for joining motors to Z-axis threaded rods or lead screws. It will help reduce or eliminate the dreaded Z-Wobble that plagues many machines. Each unit come with four M3 grub screws – 2 for each shaft, for the best concentricity and grip. These 5mm – 8mm couplers are great for joining motor shafts to M8 threaded rod, or to certain lead screws that have a turned down 8mm portion on them. Height: Approximately 25mm Inner bore: 5mm – 8mm Outer diameter: Approximately 18mm Grub screws: 4 x M3 grub screws
