Landing Gear Wheel Stop Collar with grub screw. (1)
Many uses apart from that. Yacht masts etc.
NICE SIMPLE WAY TO MAKE YOUR WHEELS STAY PUT;
I generally have these in many sizes to suit 1, 1.2,,1.8, 2,3, 3, 5, 5 and 6 mm Shafts.
All the same price so just ask
BE SURE TO CHECK OUR OTHER LISTINGS FOR MORE NEAT STUFF….