High Speed Hollow Cup Motor 5-12V with 20mm Diameter 2018 Precision Hollow Cup Motor for Polishing and Carving
Bulk high-speed hollow cup motor with a diameter of 20mm is a relatively large hollow cup motor. The motor model 2018 is a bulk motor. Some motors come with wires and some do not and they are randomly shipped without any requirements. The functional tests are all good and the motor is exquisitely crafted. The stainless steel casing is machined and the appearance and feel are very good. The motors are all equipped with a 10 tooth stainless steel gear and there are 4 extremely fine welding points on the top of the shaft To remove a gear just polish the head slightly and the gear can be removed.
The specific information for the motor has not been found and based on experience it is suitable for running 5-12V. The no-load current is very small and it is a high-speed motor that ordinary motors cannot do. Generally high-speed motors correspond to high no-load current and the actual test speeds for different voltages are as follows:
Voltage 5V: no-load current 8ma no-load speed 6500 rpm.
Voltage 9V: no-load current 15ma no-load speed 13000 rpm.
Voltage 12V: no-load current 18ma no-load speed 18000 rpm.
The motor weighs 21 grams.
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