Specifications Specification Value Dimensions ~50mm diameter, 22mm length Stator Size Roughly 22 X 6mm Weight 75 grams (2.65 oz, 0.165 lb) Bearings Gigantic 6704 bearings KV 1700kV or NEW 1100kV (This is approximate, actual KV may vary by /-10%) Voltage 2S-4S (be mindful of temperatures for 1700kV on 4S or higher) Mounting Mount with 8X M4 bolts ESC 30A . We recommend the Just ‘Cuz AM32 35A ESC Features Feature Description Circlips, Belts, or Set Screws None Magnets Super strong neodymium magnets Magnets and Stator Coils Epoxied for extra durability Windings High-temperature copper windings Wires 20AWG silicone wires rated to 200 degrees C Winding Resistance TBD Weapon Blade Compatibility Designed for use with 5mm or 0.1875 to 0.2″ thick weapon blades Notes: WARNING: MAKE ABSOLUTELY SURE NOT TO USE SCREWS THAT THREAD TOO FAR IN OR YOU WILL DESTROY THE MOTOR COILS! Warning: The outside of this motor is like a big heatsink and can get very hot! Designed for use with 5mm or 0.1875 to 0.2″ thick weapon blades. Thinner can be used with a spacer, however, due to the clamshell design of this motor, significantly thicker blades can cause issues. You can use 6X M3x12 screws to clamp a 0.25″ blade CAD download includes Sonic’s blade with the proper spline geometry needed. We recommend offsetting the spline by about 0.005″ (0.15mm) from the actual motor profile for a better weapon blade fit. If you aren’t sure what kV is best for your setup, or want to get an idea of weapon tip speeds for a variety of blade diameters and voltages, check out this handy tip speed spreadsheet! For best results, pair with the Just ‘Cuz AM32 35A pre-programmed ESC. Note that this ESC is programmed for bidirectional driving out of the box, but can be switched to one direction using the Grey Skies USB Programmer. Per the manufacturer, “The Just ‘Cuz 5502 hubmotor is a custom motor and not a conventional one so a propeller chart is a useless stat to compare this to. You should use a 30A or greater rated ESC.” Actual current draw and torque are highly dependent on your exact ESC and configuration, battery, voltage, and loading. Air resistance and tip speed for your weapon play a huge role in the current draw of your system. Even reducing speed by 20% might cut air resistance in half. ItGresa Robotics is proud to support the builder community by offering and marketing their products. Just ‘Cuz Robotics has quickly become known for both incredible product innovation and technical support for the community through their great videos. We are proud to be one of the very first distributors to partner with them and help bring their incredible products to a broader market. Warning: combat robots are not toys! They are extremely dangerous. See this safety video. Testing a robot with an active spinning weapon should never be done while maintaining a line of sight with the robot. Ideally, you should be testing inside an enclosed box or arena with at least 1/4″ thick polycarbonate windows or top to see through, and 1/2” or thicker plywood or MDF construction. Operation (Including testing) outside of a suitable arena or test box could cause serious injury. By purchasing this product you acknowledge that you are responsible for the safe use of this product and that Team Just ‘Cuz Robotics, ItGresa Consulting Group Inc d/b/a ItGresa Robotics or their employees are not liable for any injuries or damages.
