These are 12mm (0.47") linear bearings. They will fit on a 12mm (0.47") rod. Specification Type: LM12LUUInner diameter: 12mm (0.47")Outer diameter: 21mm (0.83")Length: 57mm (2.24") Shipping List 12mm (0.47") Linaer bearings x2..

2WD robotic platform is especially designed for students and hobbyists. It's versatile and small, suitable for most indoors applications. It features high quality and powerful metal gear motors which make it a speedy robot. It is ideal for maze compe..

This is official Raspberry Pi 3 Model B case with red/white color. It has following features benefits:Easy snap-fit assemblyRange of case display/access options: fully closed, sides away, birds eye viewCut-outs of all connection pointsPlastic LED lig..

This case is designed specifically for the needs and functionality of the Raspberry Pi 4 Model B. Made with aluminum alloy and polished with a modem Space Grey finish for stunning aesthetics.The case acts as passive cooling for the high demands of th..

Combining electronics, art and daily creation is always our passion, thus we created this kit.4Drawing Kit is a perfect DIY kit for kids, artists, tinkers and interactive designers. Through simple connections, you can easily bring life to your wonder..

This Antenna Kit is certified for use with the Raspberry Pi Compute Module 4. If a different antenna is used, then separate certification will be required, and this must be arranged by the end-product design engineer.Fitting instructions1.Connect the..

This is an arduino basic kit for building an omni-directional robot or an obstacle avoidance control system. It includes a DFRduino mega 2560 controller, a mega IO expansion shield, four infrared distance sensors, and two motor drivers. Specificatio..

This box of grease is very small, light and easy to carry. It can be uesd in many places. It is suitable for the condition of light load or high speed plastic gear, plastic parts, nylon retainer bearing lubrication, protection and noise reduction. Yo..

Use this kit to turn everyday objects in to keys for your computer. Connect it to a banana to make a banana game controller! Turn the stairs in your home in to a giant, interactive piano! There are thousands of fun and educational applications to exp..

This ball caster used for robot is a white ABS housing, a 3/8" diameter metal ball, two spacers (1/16" and 1/8" thick), and two #2 screw sets.The total height of this ball caster is 0.4" with no spacers. You can also adjust the height by adding the s..

Note: micro:Maqueen Lite, micro:bit board and battery are not included, you can buy them separately.Equip Maqueen Plus with this Mechanic- Forklift kit to allow it to simulate the movement of a forklift! Program it to lift an object, fork and transfe..

Note: micro:Maqueen Lite, micro:bit board and battery are not included, you can buy them separately.Maqueen Loader includes a set of mechanical parts that can turn Maqueen into a loader. This kit contains all the spare parts, such as metal servo, mec..

Note: micro:Maqueen Lite, micro:bit board and battery are not included, you can buy them separately.Turn your Maqueen Plus into a bulldozer with this Mechanic-Push kit. Then, it can beused in applications like football match, venue cleaning and so on..

Why are people always discussing the IoT Why is IoT called the 'extension of the internet' Over the past 20 years, human race has experienced three big tides. From the earliest Internet-enabled PC to the iPhone that brought the mobile market into t..

The mounting kit is an M2 screw set with screws, nuts and a variety of lengths of single-head, double-pass white nylon columns, for a total of 260 pieces. The M2-size screw set is suitable for motherboards, sensors or other devices with M2 mounting h..