Welcome to our store! Provides a non-destructive solution for attaching parts to the shaft. The parts are fixed by clamping and will not cause any damage to the fixed parts Unique design, you can tighten the double clamping bolts to clamp the high-speed shaft clamp on the shaft without worrying about the deformation of the through-hole spacing required to install the component on other parts due to the tightening of the clamping mechanism During installation, you can also attach the high-speed shaft clamp to the gear, sprocket, pulley or wheel first, and then attach the component to the shaft, because no matter where the high-speed shaft clamp is installed, the shaft clamping mechanism can work Since the fixing mechanism and the clamping mechanism are completely independent of each other, the high-speed shaft clamp can be inserted into the part's groove and can be installed in places where the 3301 series clamp cannot be installed Through holes allow you to attach high-speed shaft clamps to parts with threaded holes Item Type: Linear Motion Rail Clamping Guide Support Model: 3311-0016-1006 Material: Aluminum Uses: For EV3, for goBILDA, for TETRIX, for FTC, for VEX, etc. Basic parameters: Center Hole Size: Approx. 6mm / 0.2in (D-hole) 1 x Linear Motion Rail Clamping Guide Support Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.