2/2.3/3/3.17/4/5/6mm Motor Shaft Coupling Joint Coupler for RC Boat Car Robot
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These little items are perfect. The axle hole is 2mm "clearance", which means that they fit on a 2mm shaft without binding and no "play". They are also of a good quality and really good value for money. I actually ordered these in error since I needed a flexible coupler, but these items have found other uses: I printed a PLA (plastic) fan-blade, but it is difficult to connect a plastic item to a motor with only a short 2mm shaft. Solution? Print the fan with a 9mm centre hole in the hub and you can easily fix this coupler into the centre of the hub of the fan blade with a dab of super-glue. Now my 3D printed fan blade can be connected to the motor with perfect precision, high strength and no limitations with the motor short shaft, or trying to fix a 2mm shaft into plastic. I will buy more of these because I have several other 3D projects that need to be connected to small model motors, including an ornamental wind generator. I am 100% satisfied with my purchases, and also 100% satisfied that they have other uses in model-making. Harry L
Well received thank you joom
2/2.3/3/3.17/4/5/6mm Motor Shaft Coupling Joint Coupler for RC Boat Car Robot — buy online with free worldwide shipping!
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Wide size range: 2mm to 3mm, 4mm to 4mm, 4mm to 5mm, 2.3mm to 3mm, 5mm to 5mm, 2mm to 2.3mm, 3mm to 6mm, 2mm to 5mm, 3mm to 4mm, 3mm to 5mm, 2.3mm to 4mm, 4mm to 6mm, 6mm to 6mm, 3.17mm to 5mm, 2mm to 4mm, 3.17mm to 3.17mm, 5mm to 6mm, 2mm to 6mm, 3.17mm to 4mm, 3mm to 3mm, 2mm to 2mm, 2mm to 3.17mm