Tamiya 72008 4-Speed Worm Gearbox Kit

Tamiya 72008 4-Speed Worm Gearbox Kit
Pololu item #: 2391 12 in stock

Price break Unit price (US$)
1 13.95 19.50
10 12.55


backorders allowed

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.

 Description Specs (6) Pictures (8) Resources (1) FAQs (5) On the blog (0) 

General specifications

Typical operating voltage: 3 V
Gear ratio options: 84.0, 216.0, 555.4, 1428.2 :1
Free-run motor shaft speed @ 3V: 9400 rpm1
Free-run 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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Related Categories

Tamiya Motors and Gearboxes
Tamiya Gearboxes with 4mm Round Shafts
Tamiya Wheels
Wheels Compatible with Tamiya 4mm Round Shafts
Tamiya Products
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