The ultimate brushless gimbal motor for SLRs and cameras of similar weight Made of high-quality materials Easy to use This motor is designed for large multirotor platforms that wish to lift SLR-sized gears The principle of camera stabilization using brushless direct drive motors Model NO.:GM3506 Motor Dimensions:40x18mm Stator Dimensions:35x6mm Hollow Shaft: inner diameter 6mm Copper wire(OD):0.21mm Configuration:12N14P Resistance:14.3 ohms Wind type and termination :Star style Pre-wounded with 130 turns Bottom mounting holes: 16 and 19mm center to center Top mounting holes: 12mm center to center Camera range: 200-400grams (Due to different batches, the printed words on the product will be different, which does not affect use) Colour:Black Material:Aluminum Alloy Package Contents: 1 x Brushless Gimbal Motor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.