SPECIFICATIONS: The bearing type is LM6UU. It has an inner diameter of 6mm (0.24"), an outer diameter of 12mm (0.47"), and a length of 35mm (1.38"). SHIPPING LIST: You'll receive two 6mm (0.24") linear bearings.

These linear bearings are easy to use. First, find the right place where you need to install them. Just align the inner hole of the bearing with the shaft and slide it on. When using, avoid applying too much force suddenly, as it may damage the bearings. Keep the working environment clean to prevent dust from getting into the bearings. Regularly check if the bearings are loose. If they are, tighten them gently. Also, you can apply a little lubricant from time to time to keep them working smoothly. Store them in a dry place when not in use to prevent rusting.