These factory-fresh (not surplus!) motors are comparable pack a lot of punch in an amazingly small 7mm diamiter package. 1.5V gives 17.5mA free draw current (120mA stall) at 9700 RPM.3V gives 22mA free (260mA stall) at 18,420 RPM.5V operation give 32.1mA free (420 stall) at 31900 RPM! You can use the insulation from 18ga wire as a 1.5mm bushing for this motor.
Overall length of body and shaft is 21.7mm (0.854"). The body diameter is 7.05mm (0.277"). The main body length is 16.54mm (0.651"). There is a bearing extrusion at the base of the shaft that is .03" long and .088" in diameter The shaft diameter is 1.01mm(0.039").
|Brand's Part Number:||RPM2|