Features: 1.Multiple Accuracy Machining: The trolley motor has a high accuracy shaft, multiple accuracy machining, and has passed strict dynamic and static balance tests to ensure smooth operation and low noise. 2.High Strength Magnetic Tile: The trolley motor with high strength magnetic tile has long life, strong power and large torsion. 3.Fully Enclosed Structure: The trolley motor adopts a fully enclosed structure, which is small in size, which can effectively reduce weight and save space. 4.Pure Copper Material: Pure copper winding, pure copper coupling, low resistance, quiet and durable, low heat generation, low loss, and powerful operation balance. 5.Application: This is a car motor that can be used to make balance cars, DIY smart cars, and electric toys. Item Type: Encoder Motor Set Model: JGB37-520 Material: Brass, Copper, Magnetic Tile Purpose: Balance Car, DIY Smart Car Operating Voltage: DC 12V Shaft Diameter: Approx. 6mm / 0.2in (D Shaft) Shaft Length: Approx. 15.5mm / 0.6in CW CCW: Support Reduction Ratio(Change Ratio)6.31019305690131168270506810 No Load Current(mA)120120120120120120120120120120120 No Load Speed(rpm)159010005303331781107660372012 Rated Torsion(Kg.cm)0.712.23.56.5101519303535 Rated Speed(rpm)120077040725014085584628159 Rated Current(A)11111111111 Maximum Torsion11.63.159152431Maximum Bearing 35KG Stall Current(A)2.32.32.32.32.32.32.32.3Blocking is not allowed L Length (Approx.)19mm/0.7in22mm/0.8in24mm/0.9in26.5mm/1in29mm/1.1in 1 x Motor1 x Wheel1 x Bracket1 x Connection Cable1 x Coupling1 x Hex Wrench7 x Screw2 x Hex Socket Screw