SKU: 74870755352

Pololu 100:1 Micro Metal Gearmotor HPCB 12V 3041

Sale price$22.55 Regular price$25.05
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Pololu 100:1 Micro Metal Gearmotor HPCB 12V 3041This gearmotor is a miniature high power, 12 V brushed DC motor with long life carbon brushes and a 100. 37: 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 330 RPM, 60 mA 1. 3 kgcm (18 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 100.37:1 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 330 RPM, 60 mA 1.3 kg⋅cm (18 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 100.37:1 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 330 RPM, 60 mA 1.3 kg⋅cm (18 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: 100.37:1
No-load speed @ 12V: 330 rpm
No-load current @ 12V: 0.06 A
Stall current @ 12V: 0.75 A
Stall torque @ 12V: 1.3 kg·cm
Max output power @ 12V: 1.1 W
No-load speed @ 6V: 165 rpm3
No-load current @ 6V: 0.05 A3
Stall current @ 6V: 0.38 A3
Stall torque @ 6V: 0.65 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: 260 rpm
Torque at max efficiency: 0.29 kg·cm
Current at max efficiency: 0.21 A
Output power at max efficiency: 0.78 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: 74870755352

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 949 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Demi
Grantham, US
★★★★★ 5
Christian Ethics: Living a Life That Is Pleasing God
Format: Hardcover
This is the best book 📕 ever I’m not finished but I love this book it will help you get to know God and your Bible a lot better this is a great book
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
N
Verified Purchase
Nope
Lexington, US
★★★★★ 5
This Book Will Strengthen Your Faith and Answer Hard Questions
Format: Hardcover
This book is a must read for all Christians. You don’t have to be a student of theology to appreciate the lessons inside. It’s actually strengthened my faith and answered many questions when it comes to how a Christian should apply the Scriptures to living an ethical life. It is a large textbook but it reads very well and if you want to truly dive deeper to live a more Christ like life I would highly encourage you to read it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2025
S
Verified Purchase
Samantha
Massapequa, US
★★★★★ 5
Great book
Format: Hardcover
I think this is one book every professing Christian should read. Great layout. Backed up with scripture.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2025
E
Eric Chabot
San Leandro, US
★★★★★ 5
Very Extensive Overview of Major Ethical Issues
Format: Hardcover
Anyone familiar with Wayne Grudem’s Systematic Theology knows how extensive his work tends to be. At 1,328 pages, Christian Ethics: An Introduction to Biblical Moral Reasoning follows that same comprehensive approach, offering a systematic guide to Christian moral reasoning. Grudem’s goal is to help Christians live lives pleasing to God by obeying Scripture and making wise moral choices. His ethical framework is rooted in God’s character and the authority of Scripture, with careful attention to the relationship between Old and New Testament ethics. While many ethical themes are drawn from the Ten Commandments, Grudem argues that the moral law remains applicable today, while the ceremonial and civic laws have passed away with the coming of Christ. Readers will notice that his chapter on civil government is adapted from his earlier work, Politics—According to the Bible: A Comprehensive Resource for Understanding Modern Political Issues in Light of Scripture. Grudem argues that moral right and wrong are grounded in who God is—not in human consensus. God’s attributes (holiness, love, justice, and truthfulness) define what is good. As such, Grudem holds to a form of Divine Command Theory: God’s commands flow from God’s nature. God does not command arbitrarily, because his moral will reflects his unchanging, holy, loving, and just character. God’s nature is the ultimate standard of goodness, and the Good is not external to God (contra Plato). Therefore, Grudem stands within the theological voluntarist tradition associated with Augustine, Calvin, and Reformed orthodoxy. For Grudem, ethics is ultimately about imitating God (Eph. 5:1), which stands in direct opposition to moral relativism and situation ethics. He devotes chapters to honoring God through avoiding idolatry, truthfulness in speech, and faithfulness in Sabbath observance and devotion. Grudem also addresses the moral obligation to protect life, engaging debated issues such as abortion, euthanasia, suicide, war and self-defense, racial discrimination, and substance use and health decisions. He presents arguments alongside counterarguments, seeking to ground his conclusions biblically. Regarding authority, Grudem argues that God exercises authority through parents, societal structures, civil government, and the local church. Christians are called to obey civil authorities, though civil disobedience is justified when the state commands what God forbids. Grudem defends a just war position, arguing that war can be morally justified under certain conditions and that governments are authorized by God to use force to restrain evil. In his view, failing to stop evil can itself become immoral. As a result, he rejects Christian pacifism as an absolute position. Jesus’ commands regarding non-retaliation (e.g., “turn the other cheek”) apply to individual Christians, not to the state’s responsibility to uphold justice. The book also addresses marriage and related ethical questions, including marriage and divorce, birth control, IVF and reproductive technologies, pornography, and contemporary debates surrounding homosexuality and transgenderism—all discussed within a biblical framework. Grudem affirms that divorce is permitted in limited biblical cases (sexual immorality and abandonment), though never ideal. I would add that abuse should also be considered legitimate grounds for divorce. He rejects divorce based on incompatibility, unhappiness, or a “loss of love.” Additional topics include private property, work and rest, wealth and poverty, personal stewardship, debt, business ethics, and environmental care. As in his previous writings, Grudem maintains a complementarian view of gender roles, arguing that God designed men and women for distinct but complementary roles, particularly in the home and the church. Throughout the book, Grudem emphasizes human responsibility, freedom, and moral accountability. Our choices carry real moral weight and real consequences. One of the book’s strengths is its emphasis on the heart in ethical reasoning, serving as a corrective to purely external, rule-based moral frameworks. For Grudem, genuinely Christian ethics begins internally and works outward—a point with which I agree. Drawing from Jesus’ teaching in the Sermon on the Mount (Matt. 5–7), he argues that ethics without heart transformation inevitably becomes legalism. Overall, readers will likely find Grudem’s positions conservative. While he does not dismiss natural law arguments, he clearly adopts a “Scripture-first” approach. This book is especially well suited for pastors, as congregants regularly wrestle with complex ethical questions and need biblically grounded guidance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026
J
Jfarris
Alexandria, US
★★★★★ 3
What one Would Come to Expect
Format: Hardcover
It is typically what you would come to expect from Wayne Grudem. Those familiar with his Systematic Theology will find the material here familiar. Of course, he is dealing with a new set of topics by applying his theological rationale to a set of ethical issues. There a wide set of issues covered here. The reasoning is typical mediocre and the theological development is fine, fair, just ok. Theologically it is a bit thin, but its a nice handy resource, and if you're inclined theologically in a similar direction, then its not a bad collection of essays on important issues that evangelicals need to think about more carefully and critically.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2024

recommand products