Home  Sources  Part descriptions  Electrical parts  Mechanical parts  DC motors  Geared motors Gearmotors compared Nihon details Copal details Omron details Omron gearhead details Tokyo Micro details TS-53 details CS-20bb details Microcassette details BIObug 143:1 details BIObug 177:1 details BIObug II 224:1 details  Stepper motors  Misc. parts Assembly descriptions   BEAM Pieces is a BEAM Reference Library site.		Tokyo Micro gearmotor detailed data All the data that's fit to print Manufacturer Tokyo Micro Source Mac floppy drive Comments This is a tiny motor you can extract from Mac floppy drives made by Mitsubishi. It's not as efficient as the Nihon motor, but about as small as a "sub-micro" servo (and much less troublesome). I'd be a big fan of these if they were easier to find. Note that Omron also made some very similar motors; I have yet to test one of them... To the right I've got a picture of one (sitting on a mirror, for a bit better view), courtesy of Spudnuty. You'll note that this differs in a few details from my drawing; I suspect a few details in the plastic changed from year to year to keep track with changes in the floppy drive design. And here's another excellent picture of this motor courtesy of Spudnuty. Here you see a Tokyo Micro motor in its natural habitat -- namely, a Mitsubishi Mac floppy drive. This page presents all the data from my testing of a single example of a Tokyo Micro gearmotor. The test procedure I used is described elsewhere. Voltage No-load Current (mA) No-load Speed (deg/sec) Efficiency (deg / mW-sec) 0.5 25.5 0 0 1.0 54.1 0 0 1.0 37.7 24.3 0.6445 1.5 39.6 75.0 1.263 2.0 41.2 114.6 1.391 3.0 46.5 202.2 1.449 4.0 51.6 292.7 1.418 5.0 54.4 391.7 1.440
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