SKU: 92432670730

Pololu 75:1 Micro Metal Gearmotor HPCB 12V 3040

$21.81 $24.23
Save 10%
No.2 Bestseller on canequilibre.fr >

Pay in installments of $6.06 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 16 - Sep 21

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Pololu 75:1 Micro Metal Gearmotor HPCB 12V 3040This gearmotor is a miniature high power, 12 V brushed DC motor with long life carbon brushes and a 75. 81: 1 metal gearbox. It has a cross section of 10 12 mm, and the D shaped gearbox output shaft is 9 mm long and 3 mm in diameter. Key specifications: voltage no load performance stall extrapolation 12 V 450 RPM, 60 mA 1. 0 kgcm (14 ozin), 0. 75 A Overview These tiny brushed DC gearmotors are available in a wide range of gear ratiosfrom 5: 1 up to

This gearmotor is a miniature high-power, 12 V brushed DC motor with long-life carbon brushes and a 75.81:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter.

Key specifications:

voltage no-load performance stall extrapolation
12 V 450 RPM, 60 mA 1.0 kg⋅cm (14 oz⋅in), 0.75 A

 

 

Overview

These tiny brushed DC gearmotors are available in a wide range of gear ratios—from 5:1 up to 1000:1—and with five different motors: high-power 6 V and 12 V motors with long-life carbon brushes (HPCB), and high-power (HP), medium power (MP), and low power (LP) 6 V motors with shorter-life precious metal brushes. The 6 V and 12 V HPCB motors offer the same performance at their respective nominal voltages, just with the 12 V motor drawing half the current of the 6 V motor. The 6 V HPCB and 6 V HP motors are identical except for their brushes, which only affect the lifetime of the motor.

The HPCB versions (shown on the left in the picture below) can be differentiated from versions with precious metal brushes (shown on the right) by their copper-colored terminals. Note that the HPCB terminals are 0.5 mm wider than those on the other micro metal gearmotor versions (2 mm vs. 1.5 mm), and they are about 1 mm closer together (6 mm vs. 7 mm).

 

 

Versions of these gearmotors are also available with an additional 1 mm-diameter output shaft that protrudes from the rear of the motor. This 4.5 mm-long rear shaft rotates at the same speed as the input to the gearbox and offers a way to add an encoder, such as our encoders for micro metal gearmotors (see the picture on the right), to provide motor speed or position feedback.

With the exception of the 1000:1 gear ratio versions, all of the micro metal gearmotors have the same physical dimensions, so one version can be easily swapped for another if your design requirements change.

 

Exact gear ratio: (

This gearmotor is a miniature high-power, 12 V brushed DC motor with long-life carbon brushes and a 75.81:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter.

Key specifications:

voltage no-load performance stall extrapolation
12 V 450 RPM, 60 mA 1.0 kg⋅cm (14 oz⋅in), 0.75 A

 

Gearmotor Dimensions

In terms of size, these gearmotors are very similar to Sanyo’s popular 12 mm NA4S DC gearmotors, and gearmotors with this form factor are occasionally referred to as N20 motors. The versions with carbon brushes (HPCB) have slightly different terminal and end-cap dimensions than the versions with precious metal brushes, but all of the other dimensions are identical.

Dimensions of versions with carbon brushes (HPCB)

 

Dimensions of the Pololu micro metal gearmotors with carbon brushes (HPCB). Units are mm over [inches].

 

Dimensions of versions with precious metal brushes (LP, MP, and HP)

 

Dimensions of the Pololu micro metal gearmotors with precious metal brushes: low-power (LP), medium-power (MP), and high-power (HP). Units are mm over [inches].

 

Dimensions

Size: 10 × 12 × 26 mm1
Weight: 9.5 g
Shaft diameter: 3 mm2

General specifications

Gear ratio: 75.81:1
No-load speed @ 12V: 450 rpm
No-load current @ 12V: 0.06 A
Stall current @ 12V: 0.75 A
Stall torque @ 12V: 1.0 kg·cm
Max output power @ 12V: 1.1 W
No-load speed @ 6V: 225 rpm3
No-load current @ 6V: 0.05 A3
Stall current @ 6V: 0.38 A3
Stall torque @ 6V: 0.5 kg·cm3
Extended motor shaft?: N
Long-life carbon brushes?: Y
Motor type: 0.75A stall @ 12V (HPCB 12V - carbon brush)

Performance at maximum efficiency

Max efficiency @ 12V: 31 %
Speed at max efficiency: 350 rpm
Torque at max efficiency: 0.21 kg·cm
Current at max efficiency: 0.20 A
Output power at max efficiency: 0.76 W

Notes:

1) Output shaft adds 9 mm to the 26 mm length.
2) D shaft.
3) This motor will run at 6 V but is intended for operation at 12 V.

 

Resources


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92432670730

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 26 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Katharine Dow
Dallas, US
★★★★★ 5
A fascinating glimpse into the undoing of the Confederacy
Format: Paperback
This dense and and well-written book includes some really interesting insights into how the Confederacy was formed, but then ultimately challenged and destroyed by some of the people it excluded. In Confederate Reckoning, we get to learn about the epic political battle in which White women and slaves in the South helped to undermine the Confederacy and determine the outcome of the Civil War.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2025
D
Verified Purchase
Darrell Criswell
Pawtucket, US
★★★★★ 5
Excellent book!
Format: Paperback
I think this is a fabulous book. I have always been interested in the causes of the civil war and this book presents an interesting, almost fascinating perspective, which I havent' seen in other books. I have also been reading James Oakes fabulous "Freedom National" and the two books complement each other extremely well. McCurry's book is not of the quality that Oakes book is but not much is. I cannot understand the criticism of her writing. I find her writing to be very good...admittedly some of the sentences are too long and a few ill defined names but this is a very well written book. Although we have all studied some version of much of this material before I find it hard to believe that almost anyone won't be astonished by the magnitude of the task the confederacy was attempting to take and its inherent stupidity or maybe a better description would be craziness of these people. Good book!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2013
G
Verified Purchase
gloine36
Fort Morgan, US
★★★★★ 4
Outstanding exploration of the Confederacy's domestic divisions which helped contribute to its ultimate defeat.
Format: Paperback
This is an extremely powerful interpretation of the political forces at play in the Civil War South. Like it or not, Stephanie McCurry delivers a careful exploration of the domestic forces which were occurring during the Civil War in the Confederacy. The result is illuminating and exposes issues with great depth that have been overlooked in the study of the conflict. Much as domestic issues influenced government policies in the United States during the war as well as constantly in US history, domestic issues played an important role in influencing the actions of the Confederate government. Despite the Confederacy being an attempt to create an elite class system of rule, those without a voice in government found a way to be heard partly through their own actions, but also due to the democratic nature of American government. McCurry, the Christopher H. Browne Distinguished Professor of History at the University of Pennsylvania has definitely opened a can of worms with the release of this book. It was a finalist for the Pulitzer Prize for History in 2011 losing out to Eric Foner’s The Fiery Trial: Abraham Lincoln and American Slavery, itself a great work on the Civil War. Just how important were the actions of women and slaves in the Confederacy during the Civil War? McCurry states that their actions helped drive government policies. Based upon her work as well as others I would say she was correct. Others disagree. I think the thing to consider here is that the Confederacy, despite setting up a government ruled by the elite class of slave owners, was still responsive to the majority of the people inhabiting it. While it was an attempt to create a new nation, it was still required to adhere to some of the principles of the American Revolution. In order to establish the nation, the slave owners were going to have to wage an insurrection and for that they needed the help of the non-slave owners who would compose the majority of its armies. McCurry notes this and shows that this was just the first example of the elites compromising to achieve their goals. No matter what the elites desired, it could only happen with the support of the people in the Confederacy. It would be that support which was critical for the survival of the Confederacy. Without it, the Confederacy had no chance. This is often overlooked. First, many people think the Confederacy enjoyed the support of the people of the slave states. They did not. Of the 15 slave states in 1860, only 11 would join the Confederacy. Of those 11 states, a full third of the white men in them actually opposed secession. From the very beginning, the Confederacy had to deal with an active resistance inside its borders from whites who rejected their authority and slaves who would contribute as little as possible to the Confederate war effort. Later, soldier wives would riot as well as shield deserters. McCurry wrote extensively about these features. Just how much these factors played in the ultimate defeat of the Confederacy is going to be a guess and is open to debate. Did they cause the Confederacy to lose? Not of their own accord, but they did contribute to the defeat of the South over time. There is no doubt that the use of slaves by the Confederate armies was challenged from the very beginning of the war to the final end of it. The facts are undeniable on this matter and McCurry is not the first historian to note this nor will she be the last. The inability of the Confederacy to use its manpower to the maximum capacity was a crippling factor. The issue of slave labor and slave soldiers reflects the deep divisions within the Confederacy and exposes the rotten foundation which the slave owners tried to build their nation upon. All in all I liked the book. As some of the other comments show, the writing style could have been better. She repeated herself in multiple spots. This I think is a reflection of her still emerging writing style. Confederate Reckoning is only her second published book. She has written many articles, but those are different methods of writing compared to books. It takes some time for historians to really find their voice when writing monographs. She does have a Coursera course available, “The History of the Slave South,” which was offered in both 2014 and 2015. I think McCurry does a good job in opening up our eyes to the domestic issues on the Confederate home front. The real question which will be debated is just how much impact they had. I suspect that will be the argument for many.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2015
L
Verified Purchase
Lydia E. York
Los Angeles, US
★★★★★ 5
Hidden History
Format: Paperback
Dr. McCurry has no dog in this fight. She is Irish by birth, and raised in Canada. However, she brings a fresh perspective to the Confederate enterprise. From its foundation to the bitter end, the life of the Confederate state is documented in the words of the people who lived it. Dr. McCurry includes all the people embraced by the Confederacy, even if they weren't considered "citizens." This includes women and the enslaved people; two thirds of the Confederacy's population. The only battles documented are the struggles of an infant state professing to have perfected the US Constitution that had birthed into war. It didn't all work out as planned. But there are important lessons to be learned that aren't usually taught about the Civil War.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2020
W
Verified Purchase
White Crow
Waukegan, US
★★★★★ 5
Excellently written behind the scenes history
Format: Paperback
This is one of the best books on the irony of the Civil War. It is a different perspective that focuses on the misjudgement and arrogance of the confederacy. Food wars and manipulation of the slaves they were not part of their ill-conceived strategy to establish a states based totally on inequality. Too bad that today's politicans are trying to repeat the same mistakes. I would highly recommend this book to students of the Civil War and anybody who looks at today's politics and wonders where their southern strategy got its roots.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2013

recommand products

16 Light VBZ Chandelier
2900.01
1 Light PB Outdoor Wall Lantern
178.01
6 Light VBZ Chandelier
615.00
3 Light Black Outdoor Post Lantern
500.00
4 Light Brushed Nickel Bath Light
190.00