100:1 Micro Metal Gearmotor HP

100:1 Micro Metal Gearmotor HP
Pololu item #: 1101 799 in stock

Price break Unit price (US$)
1 15.95
10 13.55
50 11.96

backorders allowed

This gearmotor is a miniature high-power brushed DC motor with 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 specs at 6 V: 320 RPM and 120 mA with no load, 30 oz-in (2.2 kg-cm) and 1.6 A at stall.

Select options:
 Description Specs (10) Pictures (22) Resources (3) FAQs (1) On the blog (2) 
I need additional information about this motor; do you have a datasheet?

No; the information we have available for this motor can be found on its product page. However, you can approximate various additional motor parameters from the information found in the “Specs” tab.

The electrical resistance of the motor can be approximated by dividing the rated voltage by the stall current (at the rated voltage). The electromotive force constant (Ke) can be approximated by dividing the rated voltage by the free-run speed (at the rated voltage). To approximate the motor torque constant (Kt), you can divide the stall torque by the stall current.

For pretty much any DC motor, the current, speed, power, and efficiency curves as a function of torque will look like those in the graph below (assuming motor voltage and temperature are constant):

The current and speed curves are approximately linear, and the product pages for our motors provide the approximate end points for these lines: (0 torque, no-load current) and (stall torque, stall current) for the red line, and (0 torque, no-load speed) and (stall torque, 0 speed) for the blue line.

The orange output power curve is the product of the speed and the torque, which results in an inverted parabola with its peak at 50% of the stall torque.

The green efficiency curve is the output power divided by the input power, where the input power is current times voltage. The voltage is constant, so you can divide the output power curve by the current line to get the general shape of the efficiency curve, which in turn lets you identify the torque, speed, and current that correspond to max efficiency.

Note: A good general rule of thumb is to keep the continuous load on a DC motor from exceeding approximately 20% to 30% of the stall torque. Stalling gearmotors can greatly decrease their lifetimes, occasionally resulting in immediate damage to the gearbox or thermal damage to the motor windings or brushes. Do not expect to be able to safely operate a brushed DC gearmotor all the way to stall. The safe operating range will depend on the specifics of the gearmotor itself.

Related Products

Magnetic Encoder Pair Kit for Micro Metal Gearmotors, 12 CPR, 2.7-18V
Optical Encoder Pair Kit for Micro Metal Gearmotors, 5V
Pololu 42×19mm Wheel and Encoder Set
Pololu Micro Metal Gearmotor Bracket Extended Pair
Pololu Micro Metal Gearmotor Bracket Pair - Black
Pololu 15.5D mm Metal Gearmotor Bracket Pair
Pololu Micro Metal Gearmotor Bracket Pair - White
Machine Screw: M1.6, 3mm Length, Phillips (6-pack)
Pololu Universal Aluminum Mounting Hub for 3mm Shaft, M3 Holes (2-Pack)
Pololu Universal Aluminum Mounting Hub for 3mm Shaft, #2-56 Holes (2-Pack)
12mm Hex Wheel Adapter for 3mm Shaft (2-Pack)
Pololu Wheel 70×8mm Pair - Red
Pololu 5" Robot Chassis RRC04A Solid Red
Pololu 22T Track Set
Pololu 30T Track Set
Solarbotics RW2i Wheel (internal set screw)
Pololu Simple Motor Controller 18v7 (Fully Assembled)
Pololu Qik 2s9v1 Dual Serial Motor Controller
DRV8833 Dual Motor Driver Carrier
DRV8838 Single Brushed DC Motor Driver Carrier
DRV8835 Dual Motor Driver Carrier
TB6612FNG Dual Motor Driver Carrier
Orangutan SVP-1284 Robot Controller (assembled)
Orangutan SV-328 Robot Controller
Baby Orangutan B-328 Robot Controller
26:1 Sub-Micro Plastic Planetary Gearmotor 6Dx16L mm
136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm
Pololu 6V Step-Up Voltage Regulator U3V50F6
Zumo 32U4 Robot Kit (No Motors)
Zumo Robot for Arduino, v1.2 (Assembled with 75:1 HP Motors)
Pololu 3pi Robot
Ceramic Capacitor 6-Pack 0.1uF 50V

Related Categories

High-Power (HP) Micro Metal Gearmotors
Micro Metal Gearmotors
Pololu Wheels and Tracks
Brushed DC Motor Controllers
Brushed DC Motor Drivers
Robot Controllers
Current Sensors
Pololu 5″ Robot Chassis RRC04A
Zumo Robots and Accessories
3mm Shaft Gearmotors
25D mm Gearmotors
37D mm Gearmotors
Log In
Pololu Robotics & Electronics
Shopping cart
(702) 262-6648
Same-day shipping, worldwide
Shop Blog Forum Support
My account Comments or questions? About Pololu Contact Ordering information Distributors