Any linear motion in your 3D printer can be supported with these bearings. The LM10UU can work great at low, high-precision speeds in for example a leadscrew or threaded rod driven Z-axis. But also high-speed movements for longer periods of time in the X/Y axes is no problem for these bearings! They provide a very affordable solution for a great result with your printer. Alternatively, we provide the RJ4JP-01-10 linear bushings in the shop which reduce the amount of noise and wearing of the rods.