Pls kindly remark the RPM when place order. Name: geared ac motor. Rated voltage: AC 110V/220 V. Power Phase: single-phase motor. Product List: Motor + Gear Box + Adapter. Features: Adjustable speed / forward / reverse / Reduction. Slow can be transferred to 0 rpm, the faster, the smaller the strength! Speed ratio ingle-phase 110V/220V, the gearbox without gearbox is 1250 rpm, the need for different reduction ratio of customers please note and message. The load is relatively small and the motor does not work continuously for a long time, the governor shall not be less than 50% of the full speed. The load is relatively large and the motor works continuously for a long time, the governor shall not be less than 70% of the full speed. 1, Gear detector (all-round inspection of gears) 2, Vickers hardness tester, Rockwell hardness tester (test hardness again to ensure wear resistance) 3, Radial runout detection (detecting motor running-in, balance to reduce motor wear, no noise when running at high speed) 4, Withstand voltage tester (to detect leakage, higher than normal voltage, no leakage) 5, inter-turn tester, surge test motor stator winding insulation between turns, thick coil, same power torque output, larger torque 6, Stator comprehensive tester: Check for defects after the motor stator is embedded, and investigate and deal with unqualified defective producs (stator: the part of the motor that is fixed on the casing corresponding to the rotating part) 7, Motor comprehensive tester: test the data of the motor to meet the standard 8, Dynamometer: Welding, insulation, power frequency withstand voltage, turn-to-turn withstand voltage against any chip, any impact method and repeated impact times. There are NO EXCEPTIONS! OR, you may choose to have a replacement. We will reply you ASAP. Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem you have. Our customer-oriented service strives for. Business time: GMT8 (9:00-18:00) from Monday to Friday.