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.
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|Description||Specs (6)||Pictures (8)||Resources (1)||FAQs (5)||On the blog (0)|
|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|
- A theoretical speed of the gearbox output shaft can be computed by dividing this speed by the gear ratio.
- 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.
- A theoretical torque of the gearbox output shaft can be computed by multiplying this torque by the gear ratio.