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Pololu Ball Caster with 1" Plastic Ball and Ball Bearings
This ball caster is an improved version of our original Pololu Ball Caster with 1″ Plastic Ball; we recommend this new version over the older version for all applications that are not somehow specifically tied to the previous design.This ball caster kit includes a two-part black ABS housing, a 1″...
Pololu Ball Caster with 3/4 Plastic Ball
This light ball caster uses a 3/4″ diameter plastic ball. The height of the assembled kit ranges from 0.9″ to 1.2″, depending on the combination of included spacers used. Included dowel pins can be used to reduce the friction between the ball and the ABS housing, but they are not necessary for o...
Replacement 3pi Ball Caster with 1/2 Plastic Ball
This ball caster was originally released as a replacement part for the 3pi robot, but the 1/2″ ball can also be used a replacement part for the newer 3pi+ robot, which has the housing for the ball built directly into the chassis. This ball caster can also be used as a general-purpose ball caster...
Pololu Micro Metal Gearmotor Bracket Extended Pair
This compact bracket enables convenient mounting of popular, Sanyo-style micro metal gearmotors. The white plastic bracket encloses the otherwise exposed gears, and the mounting tabs capture the nuts for easy installation. This version has mounting tabs that allow for use with the Pololu Wheel ...
16mm Height Metal Caster Bearing Wheel
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A compact steel ball caster that provides smooth, omnidirectional movement for small robots and wheeled projects. With a 16mm overall height, it's well-suited as a third support point for two-wheeled robot chassis. Easy to mount with two screw holes spaced approximately 10.5mm apart — compatible...
Pololu Universal Aluminum Mounting Hub for 5mm Shaft, #4-40 Holes (2-Pack)
These universal aluminium mounting hubs from Pololu are designed to securely couple custom wheels, mechanisms, and other components to 5 mm diameter motor shafts — including round and D-shaped shafts. Each hub features four #4-40 mounting holes for attaching wheels or custom parts, and a #4-40 he...
20mm Height Metal Caster Bearing Wheel
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A durable steel ball caster with smooth, fluid motion — ideal for providing a third contact point on small robot platforms. The 20mm overall height pairs well with common robot chassis and TT motor setups, and the two screw mounts make it easy to attach to any material. Key Features Steel Ball...
Ball Caster Omni-Directional Metal
A metal caster used for omni-directional robots.Omni-what? Imagine a robot with the dual-motor gear box. The robot can pivot in one spot, but it must also allow the other wheels on the drive train to move or slide during a turn. This caster allows the robot to rotate and pivot in all directions -...
Pololu Universal Aluminum Mounting Hub for 6mm Shaft, #4-40 Holes (2-Pack)
These universal aluminium mounting hubs from Pololu are designed to securely couple custom wheels, mechanisms, and other components to 6 mm diameter motor shafts. Each hub features six threaded #4-40 mounting holes for attaching wheels or custom parts, and a #4-40 hex set screw locks the hub firm...
Micro Metal Gearmotor Bracket (Pair)
These simple little brackets are the best way to securely mount our micro metal gearmotors to your project, whether it be a robot, a fan, or a pulley system. We've designed the mounting tabs to capture the nuts for easy installation. They have the same hexagonal shape as the nuts a...
Pololu Aluminum Scooter Wheel Adapter for 1/4 Shaft
This two-part aluminum assembly mounts directly to 1/4 inch diameter motor output shafts like those on our NEMA 23 stepper motors and allows you to drive most scooter, skateboard, inline skate, and other common wheels that are compatible with popular 608 ball bearings. Two M4 set screws are...
Wheel 42x19mm (Pair)
This custom-designed plastic wheel has a rubber tire measuring 1.65" (42 mm) in diameter and is designed to fit the output shafts on our mini metal gearmotors as well as the Solarbotics metal gear motors. Teeth on the hub optionally allow a reflectance sensor to be used for encoder feedback. ...
Pololu Universal Aluminum Mounting Hub for 8mm Shaft, M3 Holes (2-Pack)
These universal mounting hubs are designed to work with most 8 mm diameter shafts, including round shafts and “D” shafts. Each of the two included hubs has six mounting holes for M3 screws (not included), letting you mount custom wheels or mechanisms to your motors. The four included M3 hex se...
Micro Metal Geared motor w/Encoder- 6V 105RPM 150:1
INTRODUCTION A new micro metal gear motor with a difference! This motor comes with a built-in encoder which measures the motor's speed in real time. The average output number of pulses can reach up to 7*2*150 pulses per revolution. The motor has a long (0.354"/9.0 mm...
Micro DC Geared motor w/Encoder - 6V 310RPM 50:1
INTRODUCTION A new micro metal gear motor with a difference! This motor comes with a built-in encoder which measures the motor's speed in real time. The average output number of pulses can reach up to 7*2*50 pulses per revolution. The motor has a long (0.354"/9.0 mm)...
Black Multi-Hub Wheel for TT / Lego or N20 Motor - 65mm Diameter
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The Black Multi-Hub Wheel is a 65 mm diameter wheel that ships with two interchangeable hub inserts, allowing it to fit a wide range of common hobby motors straight out of the box. Simply press in the hub that matches your motor and you're ready to roll. Key Features Multi-Hub Compatibility – ...
Micro Metal Gearmotor 30:1
This motor has a long (0.365" or 9.27 mm), D-shaped metal output shaft that matches the Pololu wheel 42x19mm and 32x7mm. The brass faceplate has two mounting holes threaded for M1.6 screws (1.6 mm diameter, 0.35 mm thread pitch), or you can use the mounting bracket or extended mounting brac...
N20 ABS Rubber Wheel 43x9mm (Pair)
A pair of rubber-tyred ABS wheels designed to fit N20 mini metal gearmotors and compatible Solarbotics metal gear motors. The hub features teeth that can be used with a reflectance sensor for encoder feedback, adding speed and position sensing to your robot. The wheels press-fit onto the gearmot...
Micro DC Geared motor w/Encoder-6V 41RPM 380:1
INTRODUCTION A new micro metal gear motor with a difference! This motor comes with a built-in encoder which measures the motor's speed in real time. The average output number of pulses can reach up to 7*2*380 pulses per revolution. The motor has a long (0.354"/9.0 mm) D profile metal out...
30:1 Micro Metal Gearmotor LP 6V
A miniature low-power brushed DC motor with a 29.86:1 metal gearbox, designed for robotics and compact mechanical projects. The 6V LP (Low Power) variant draws minimal current while delivering useful torque through the metal gear train. The D-shaped output shaft is compatible with a wide range o...
