Germany to European Union Customers. Shaft;Front shaft 8mm dia and 21mm length, back shaft 8mm dia and 11mm length. Step Angle: 1.8 deg. Step angle accuracy:+ - 5%(full step, not load).
Resistance accuracy: + - 10%. Inductance accuracy:+ - 20%.Temperature rise: 80deg Max(rated current, 2 phase on). Insulation resistance:100ohm Min, 500VDC. Insultion Strength--------500VAC for one minute. Our motor is made of solid and durable metal.
The perfect combination of rubber and rotor makes the internal structure more stable, and also reduces the vibration and noise when the engine runs. The motor runs more quietly, with a high torque of 425oz in. The coil uses pure copper enamelled wire to ensure that long-term operation will not lead to excessive engine temperature. The rotor surface is coated with high-quality epoxy resin adhesive to isolate the adsorbed burrs on the rotor surface, more stable magnetic field and longer service life of motor.
Stepper motor's red wire connect to driver's A+ port. Stepper motor's green wire connect to driver's A- port. Stepper motor's yellow wire connect to driver's B+ port.Stepper motor's blue wire connect to driver's B- port.