Motor Specifications
Here are some specs for the small Polaroid motors used in the 6.270
contest. These specs are shamelessly borrowed without permission from
the 2.007 web site at http://pergatory.mit.edu/2.007/handouts/actuator/polaroid/polaroid.html.
The motors are donated to us by Polaroid, but are made by the
Japanese company Mabuchi. They are normally used to rewind film in
cameras. For their size, they have a suprisingly high amount of
torque, so they are fairly powerful for contest use.
Without any further ado, here are the specs are reported by 2.007. You
guys do not get the complete motor w/ transmission assembly that 2.007
gets, so only the motor specs are reported here.:
| Manufacturer: |
Polaroid Co. |
 |
| Part Number: |
|
| No Load Speed @ 13.8 volts: |
19,000 rpm |
| No Load Speed @ 6 volts: |
approx 7,200 rpm |
| Stall Torque: |
0.0049 N-m |
0.043 in-lbf |
| Nominal Voltage: |
6.9 Volts |
|
|
|
|
| Overall Length: |
35.8 mm |
1.41 in |
| Body Width: |
22.3 mm |
0.878 in |
| Body Height: |
15.0 mm |
0.590 in |
| Shaft Diameter: |
2 mm |
0.079 in |
|
|
|
| Overall Weight: |
28 g |
0.062 lbs |
