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New high-gear ratio Micro Metal Gearmotors

Posted by Ben on 3 June 2019
Tags: new products

Our Micro Metal Gearmotors are now available with 380:1 gearboxes, offering a new high gear ratio option between our existing 298:1 and 1000:1 versions. Unlike the 1000:1 gearmotors, which uniquely require a longer, more expensive gearbox to achieve such a big reduction, the 380:1 gearboxes fit everything in the same volume as all our lower gear ratios, so they are the same price as those lower-ratio versions and they work with all our micro metal gearmotor brackets.

What really sets these new units apart from our other gear ratios are their stainless steel gearbox plates, which are more durable than the ubiquitous brass ones, especially in applications with non-negligible radial loads. They also look way cooler!

380:1 micro metal gearmotor with stainless steel gearbox plates.

Micro metal gearmotor with brass gearbox plates.

The main point of this higher gear ratio is not to deliver more total torque but rather to enable slower speeds and lower current draws than our lower gear ratios at the same loads. That said, the 380:1 gearbox can withstand higher torques than our lower gear ratios thanks to its use of progressively thicker gears toward the output. Both the 380:1 and 1000:1 gearboxes have a recommended instantaneous torque limit of 2.5 kg*cm, while the lower gear ratios have a recommended limit of 2.0 kg*cm (note: we strongly advise keeping applied loads well under these instantaneous limits).

These new gearboxes are available paired with each of our five motor winding options in compact single-shaft or encoder-friendly dual-shaft configurations, resulting in the ten new options shown as related products at the bottom of this post. These are just the latest example of our continued commitment to being the best source for this popular form factor of gearmotor. You might see similar-looking motors elsewhere, but no one comes close to our offering, from the quality of the gears to our exclusive long-life carbon brush options to the overall breadth of our selection (over 100 versions!), all in stock for shipment the day you order.

Rated
Voltage
Motor
Type
Stall
Current
No-Load
Current
No-Load Speed
(RPM)
Extrapolated
Stall Torque
Max Power
(W)


Single-Shaft
(Gearbox Only)


Dual-Shaft
(Gearbox & Motor)
(kg ⋅ cm) (oz ⋅ in)
12 V high-power,
carbon brushes
(HPCB)
0.75 A 0.06 A 6000 0.09 1.3 5:1 HPCB 12V 5:1 HPCB 12V dual-shaft
3000 0.17 2.4 1.5 10:1 HPCB 12V 10:1 HPCB 12V dual-shaft
1100 0.39 5.4 1.1 30:1 HPCB 12V 30:1 HPCB 12V dual-shaft
650 0.67 9.3 1.1 50:1 HPCB 12V 50:1 HPCB 12V dual-shaft
450 1.0 14 1.1 75:1 HPCB 12V 75:1 HPCB 12V dual-shaft
330 1.3 18 1.1 100:1 HPCB 12V 100:1 HPCB 12V dual-shaft
220 1.8 25 1.0 150:1 HPCB 12V 150:1 HPCB 12V dual-shaft
160 2.5 35 1.0 210:1 HPCB 12V 210:1 HPCB 12V dual-shaft
130 3.0 42 1.1 250:1 HPCB 12V 250:1 HPCB 12V dual-shaft
110 3.3 46 1.0 298:1 HPCB 12V 298:1 HPCB 12V dual-shaft
85 5.0 69 1.1 380:1 HPCB 12V 380:1 HPCB 12V dual-shaft
35 10 140 1000:1 HPCB 12V 1000:1 HPCB 12V dual-shaft
6 V high-power,
carbon brushes
(HPCB)
1.5 A 0.10 A 6000 0.09 1.3 5:1 HPCB 6V 5:1 HPCB 6V dual-shaft
3000 0.17 2.4 1.3 10:1 HPCB 6V 10:1 HPCB 6V dual-shaft
1100 0.45 6.2 1.2 30:1 HPCB 6V 30:1 HPCB 6V dual-shaft
650 0.74 10 1.2 50:1 HPCB 6V 50:1 HPCB 6V dual-shaft
430 1.1 15 1.3 75:1 HPCB 6V 75:1 HPCB 6V dual-shaft
330 1.6 22 1.3 100:1 HPCB 6V 100:1 HPCB 6V dual-shaft
220 2.0 28 1.1 150:1 HPCB 6V 150:1 HPCB 6V dual-shaft
160 2.8 39 1.1 210:1 HPCB 6V 210:1 HPCB 6V dual-shaft
130 3.2 44 1.1 250:1 HPCB 6V 250:1 HPCB 6V dual-shaft
110 3.4 47 1.0 298:1 HPCB 6V 298:1 HPCB 6V dual-shaft
85 5.0 69 1.1 380:1 HPCB 6V 380:1 HPCB 6V dual-shaft
33 11 150 1000:1 HPCB 6V 1000:1 HPCB 6V dual-shaft
6 V high-power
(HP)
1.6 A 0.07 A 6000 0.11 1.5 5:1 HP 6V 5:1 HP 6V dual-shaft
3000 0.22 3.0 1.6 10:1 HP 6V 10:1 HP 6V dual-shaft
1000 0.57 7.9 1.5 30:1 HP 6V 30:1 HP 6V dual-shaft
590 0.86 12 1.3 50:1 HP 6V 50:1 HP 6V dual-shaft
410 1.3 18 1.4 75:1 HP 6V 75:1 HP 6V dual-shaft
310 1.7 24 1.3 100:1 HP 6V 100:1 HP 6V dual-shaft
210 2.4 33 1.2 150:1 HP 6V 150:1 HP 6V dual-shaft
150 3.0 42 1.1 210:1 HP 6V 210:1 HP 6V dual-shaft
120 3.4 47 1.1 250:1 HP 6V 250:1 HP 6V dual-shaft
100 4.0 56 1.1 298:1 HP 6V 298:1 HP 6V dual-shaft
84 5.5 76 1.1 380:1 HP 6V 380:1 HP 6V dual-shaft
31 12 170 1000:1 HP 6V 1000:1 HP 6V dual-shaft
6 V medium-power
(MP)
0.67 A 0.04 A 4400 0.06 0.8 5:1 MP 6V 5:1 MP 6V dual-shaft
2200 0.11 1.5 10:1 MP 6V 10:1 MP 6V dual-shaft
720 0.33 4.6 0.57 30:1 MP 6V 30:1 MP 6V dual-shaft
420 0.54 7.5 0.55 50:1 MP 6V 50:1 MP 6V dual-shaft
290 0.78 11 0.54 75:1 MP 6V 75:1 MP 6V dual-shaft
220 0.94 13 0.50 100:1 MP 6V 100:1 MP 6V dual-shaft
150 1.3 18 0.48 150:1 MP 6V 150:1 MP 6V dual-shaft
100 1.7 24 0.46 210:1 MP 6V 210:1 MP 6V dual-shaft
88 2.2 31 0.48 250:1 MP 6V 250:1 MP 6V dual-shaft
73 2.4 33 0.44 298:1 MP 6V 298:1 MP 6V dual-shaft
57 3.6 50 0.53 380:1 MP 6V 380:1 MP 6V dual-shaft
22 6.5 90 1000:1 MP 6V 1000:1 MP 6V dual-shaft
6 V low-power
(LP)
0.36 A 0.02 A 2500 0.05 0.7 5:1 LP 6V 5:1 LP 6V dual-shaft
1300 0.10 1.4 10:1 LP 6V 10:1 LP 6V dual-shaft
450 0.29 4.0 0.31 30:1 LP 6V 30:1 LP 6V dual-shaft
270 0.44 6.1 0.29 50:1 LP 6V 50:1 LP 6V dual-shaft
180 0.64 8.9 0.29 75:1 LP 6V 75:1 LP 6V dual-shaft
130 0.74 10 0.25 100:1 LP 6V 100:1 LP 6V dual-shaft
90 1.1 15 0.25 150:1 LP 6V 150:1 LP 6V dual-shaft
65 1.6 22 0.25 210:1 LP 6V 210:1 LP 6V dual-shaft
54 1.7 24 0.23 250:1 LP 6V 250:1 LP 6V dual-shaft
45 2.0 28 0.22 298:1 LP 6V 298:1 LP 6V dual-shaft
36 2.9 40 0.27 380:1 LP 6V 380:1 LP 6V dual-shaft
13 5.5 76 1000:1 LP 6V 1000:1 LP 6V dual-shaft

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