Miniature, 12V brush DC motor with metal gear with 15.25: 1 ratio. It has a cross section of 10 × 12 mm, and the D-shaped output shaft has a length of 9 mm and a diameter of 3 mm. It also has an extended motor shaft with dimensions of 4.5 × 1 mm. Pololu 4789

The Tamiya 72002 gearbox with the possibility of installing racks in a gear ratio of 11.6:1 and 18:1. It is suitable for very fast vehicles or mechanisms that do not require high torque. Pololu 71

4WD car chassis construction kit. It can be used as a base for building a robot

Universal case adapted to most popular single-board computers, incl. ODYSSEY-X86J4105, Raspberry Pi, BeagleBone, and Jetson Nano. Seeed Studio 114992152

A set of adapters (adapter) from the popular 4 mm to 12 mm motor shaft, wheel holders from RC models. Pololu 2684

DC Micro motor module with metal gear with a gear ratio of 50:1. The motor is connected to the board containing the driver. DFRobot DFR0429

White Yato cable tie, dimensions 450x9.0 mm, made of polyamide PA66, characterized by enhanced tearing resistance, excellent mechanical properties and UV resistance, intended for precise fastening and connecting various objects. Yato YT-70636

Miniature high-power motor from the Pololu MP series. 100: 1 gear motor,
the rotation speed of the shaft is 220 rpm, the torque is 1.5 kg * cm (0.15 Nm).
The motor has an extended shaft which makes it easy to attach the encoder. Pololu 2381

This gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 210.59:1 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. This version also has a 4.5 × 1 mm extended motor shaft.

Miniature stepper motor with a 100:1 metal gear offers high precision movement and increased torque, making it a suitable choice for projects requiring precise positioning, such as mobile robots, dispensing mechanisms or laboratory devices. The compact design and wide supply voltage range enable integration in complex mechatronic systems. DFRobot FIT0503

These 17 mm long aluminum adapters convert a 3 mm diameter shaft to a 12 mm hex shaft that compatible with many common hobby RC wheels. The set includes two adapters, two M4 screws for securing wheels to the adapters, four M3 set screws for securing the adapters to motor shafts, and one 1.5 mm Allen wrench for use with the set screws.

The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit. This module is compatible with all of the Pololu dual-shaft mini plastic gearmotors. Pololu 1523

This gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 29.86:1 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.

Permanent cylindrical neodymium magnet with a diameter of 12 mm and a height of 5 mm. Set of 5 pcs

HK HK15322MG Digital Slim Wing Servo 19g / 1.75kg / 0.10s (20722)

This item is a set of three plastic rollers, a 1″-diameter plastic ball, and a retaining clip that can be used on the front or back ball caster locations on the Romi chassis base plate. The ball is white, and all other parts are red. It is included as part of the red Romi Chassis Kit.

The versatile Romi chassis is a great starting point for your next mobile robot. This kit includes all the basic mechanical parts to get up and running, including two motors, two wheels, one ball caster, and battery contacts. The wheels and ball are white; all other plastic components are pink.