Tamiya Gearboxes with 4mm Round Shafts »
Tamiya 72008 4-Speed Worm Gearbox Kit
The primary feature of this gearbox is a worm gear, which locks the output shaft when the motor is not turning. Its high gear ratios of 84:1, 216:1, 555.4:1, and 1428.2:1 make this gearbox appropriate for small walking robots, lifting mechanisms, and other applications where high torque is desired.
Compare all products in Tamiya Gearboxes with 4mm Round Shafts or Tamiya Motors and Gearboxes.
| Description | Specs (6) | Pictures (8) | Resources (1) | FAQs (5) | On the blog (0) | Distributors (1) |
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General specifications
| Typical operating voltage: | 3 V |
|---|---|
| Gear ratio options: | 84.0, 216.0, 555.4, 1428.2 :1 |
| No-load motor shaft speed @ 3V: | 9400 rpm1 |
| No-load current @ 3V: | 150 mA2 |
| Stall current @ 3V: | 2700 mA |
| Motor shaft stall torque @ 3V: | 0.97 oz·in3 |
Notes:
- 1
- A theoretical speed of the gearbox output shaft can be computed by dividing this speed by the gear ratio.
- 2
- This is the no-load current of the motor when disconnected from the gears in the gearbox; the no-load current of the entire gearbox with the motor connected will be slightly higher and will vary depending on the gear ratio.
- 3
- A theoretical torque of the gearbox output shaft can be computed by multiplying this torque by the gear ratio.
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