Features: The worm gear motor with self-locking, even if in the absence of electricity in the motor, the output shaft is not to move, that is self-locking This motor is adopted of pure copper wire coil, with low heat and low loss. The motor is made of metal gear, wear-resisting, avoid tooth breaking, so with long serving life. Easy installation, flexible and easy, superior performance, easy maintenance Worm gear motors widely used in windows, a door opener, mini winches and other occasions Specification: Model: 5D90GN-RV30 Number of poles: 8 Rated power: 90W Rated voltage: 24 (V) Speed: 1800rpm Current: 4A Reduction ratio(Optional): 5k, 7.5k,10k,15k, 20k, 25k, 30k, 40k, 50k, 60k, 80k Size: as the picture shows Weight: Approx.2635g/92.9oz Wiring method: red:"+", black:"-" Motor characteristics Voltage Power unload parameter load parameter 5D90-24 speed current speed moment of force current V W RPM A RPM kgf.cm A 24 90 2200 1.75 185 3.4 12 Allowable moment of force on gearbox Model Reduction ratio 5 7.5 10 15 20 25 30 40 50 60 80 output shaft speed r/min 440 293 220 146 110 88 73 55 44 36 27 NRV30 moment of force N.m 1.27 1.9 2.38 3.44 4.3 6.19 6.88 10.31 12.89 13.83 18.44 kgf.cm 13 19 24 35 44 63 70 105 132 141 188 Package list: 1 x Worm Gear Motor 4 x screw kit Note: If the reduction ratio is different, the output shaft speed is different. Motor speed1800/ Reduction ratio=output shaft speed 1、The worm gear motor with self-locking, even if in the absence of electricity in the motor, the output shaft is not to move, that is self-locking 2、This motor is adopted of pure copper wire coil, with low heat and low loss. 3、The motor is made of metal gear, wear-resisting, avoid tooth breaking, so with long serving life. 4、Easy installation, flexible and easy, superior performance, easy maintenance 5、Worm gear motors widely used in windows, a door opener, mini winches and other occasions