Welcome To Our Store. Name: Geared AC Motor. Rated voltage: AC 220V/110V. Axis type: optical axis. The optical axis motor in this link does not come with a gearbox, and the rated speed is 1400 rpm. The corresponding speed controller has a speed range of 90-1350 rpm cannot be adjusted to run below 700 rpm for a long time, and the slower the speed controller is adjusted, the smaller the force. Regarding speed adjustment, it is recommended to not lower than 50% of the rated speed for a short period of time and be higher than 70% of the. Rated speed for a long period of time. 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.