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45mm Planetary Gear Motor
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Figure 1. 45mm Planetary Gear Motor Pair
The wheelchair uses a pair of 12V 45mm planetary gear motors with a 10mm shaft diameter. These are produced by Twirl Motor in China - Part Number: PG45M775126000-32.5K. When you order this item you get a pair of 2 motors. The motors weight about 2 Lbs each, for a total of 4 Lbs (1.8kgs) for the pair.
| Motor Specification (No Gearbox) | |
|---|---|
| No Load Speed | 6000 RPM |
| No Load Current | 900mA |
| Full Load Speed | 4500 RPM |
| Full Load Current | 4A |
| Torque | 750 gf*cm |
| Stall Torque | 3000 (gf*cm) |
| Stall Current | 13A |
| Gearbox Specification | |
| Gearbox Reduction | 32.5 |
| Number of gear stages | 3 |
| Gearbox Length | 56.2 mm |
| Max Running Torque | 20 kgf*cm |
| Gear Efficiency | 73% |
| Motor With Gearbox Specification | |
| No Load Speed | 135 RPM (=6000/32.5*0.73) |
| Full Load Speed | 100 RPM (=4500/32.5*0.73) |
| Torque | 17.8kgf*cm (=750*32.5*0.73) |
Ordering Info
| Part Number | Description | Price | Purchase |
|---|---|---|---|
| GEAR-MOTOR-PAIR | Pair of 12V 45mm planetary gear head motors with 10mm shaft diameter | $59.95/pair |
The Open Wheelchair hardware design is licensed under CERN Open Hardware Licence v1.2 and the Software is licensed under the GNU General Public License Version 3. By viewing or using the design posted on this website you are agreeing to these licenses. To view the license see our license page.
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