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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...
Metal ball casters
A sturdy metal ball caster made from 1 mm stamped steel plate, capable of supporting loads up to 15 kg. At just 37 g and 20 mm tall, it provides smooth omnidirectional movement without adding significant weight to your robot chassis. The caster uses 40 small bearing balls around the main 15 mm s...
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″...
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 -...
Caster (2-Pack)
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A pair of nylon plastic ball casters measuring 25.4 mm (1") in diameter, providing smooth omnidirectional movement for small robots and rolling platforms. These are the same casters used with the XRP robotics kits. Key Features Nylon Plastic Construction – Lightweight and durable 25.4 mm (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...
Mini 3-Layer Round Robot Chassis Kit - 2WD with DC Motors
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A compact three-layer round robot chassis kit with two DC drive motors, matching wheels, and a caster ball for balance. The high-strength anodised aluminium alloy frame provides a sturdy platform for building your own 2WD mobile robot, with three layers of mounting space for batteries, controller...
Ball Caster - 3/4 Metal Ball
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Get your robot rolling with this durable and smooth metal ball caster. We like the size (not too big, not too small) and surprisingly smooth motion of this caster. It's also really easy to attach, with two screw mounts (and included screws) that will allow you to attach it to any material up to 5...
2WD Aluminum Alloy Smart Car Platform Chassis Kit
This 2WD aluminium alloy smart car platform provides a durable and stable chassis for building your own robot car. The lightweight aluminium body offers a solid foundation for mounting controllers, sensors, and other components. Easy to assemble with no soldering required, this chassis kit inclu...
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...
Mini Round Robot Chassis Kit - 2WD with DC Motors
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This kit gives you everything you need to build the shell of a 2-wheel-drive Mobile Platform Robot! You get the metal plates that make up the chassis, two DC drive motors with matching wheels, and a caster ball for balance. You'll fill in the rest with a power supply, microcontroller board, an...
Line Following Buggy for the BBC micro:bit
The Line Following Buggy with :MOVE line following board for the BBC microbit is the newest version of our very popular line following buggy. It offers a significant upgrade in the form of our new :MOVE line following board. Not only does it provide far superior line following it also makes th...
Turtle: 2WD Arduino Mobile Robot Platform
The Turtle is a compact 2WD mobile robot platform designed for use with Arduino and other microcontroller boards. It comes as a kit with two geared DC motors, rubber wheels, a rear caster ball, an aluminium alloy chassis, and all mounting hardware needed for assembly. The top layer includes a st...
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...
Octagon Chassis Frame - Blue Plastic - 16cm x 16cm x 4cm
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This Blue Octagon Chassis makes for an excellent robot body that's easy to machine and modify. It's a single piece of 4mm thick plastic, with a variety of holes, slots and cutouts for mounting boards, sensors, and servos. The sides are notched to fit two DC Gear 'TT' motors - you'll want to get f...
2WD miniQ Robot Chassis
The DFRobot MiniQ 2WD robotic platform is a compact, round chassis designed for students and hobbyists. At just 122 mm in diameter, it's ideal for indoor applications including maze competitions, educational courses, and rapid prototyping of robot designs. The platform features high-quality N20 ...
Kitronik Line Following Buggy for the BBC micro:bit
The Line Following Buggy with :MOVE line following board for the BBC microbit is the newest version of our very popular line following buggy. It features the :MOVE line following board and has fewer parts. Not only does it provide far superior line following it also makes the kit much easier to a...
Kitronik Simple Robotics Kit for the BBC micro:bit
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The Kitronik Simple Robotics Kit is an entry-level robot buggy designed for young learners and beginners. Controlled by a BBC micro:bit, it uses clip lead connections and a fold-up cardboard chassis — no soldering required. Step-by-step build and coding instructions are included, covering everyth...
DC Motor Plastic Mount - 130 Size / 20mm Diameter
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We couldn't let the DC Gearbox "TT" motors have all the fun! If you're using some sort of motor, there's a really good chance it's a low cost DC Motor in "130 Size". We stock these in the shop, they're the most basic kind of motor, very inexpensive and easy to find around the world. DC hobby m...
25:1 Metal Gearmotor 20Dx41L mm 6V
A compact 6V brushed DC gearmotor with a 25:1 metal spur gearbox, delivering strong torque in a small form factor. The cylindrical design has a 20mm diameter, and the D-shaped output shaft is 4mm in diameter extending 18mm from the gearbox face plate. Key Features 25:1 Metal Gearbox – Durable ...
