Pololu

Snap-Action Switch SDPT - Pololu 1404 This switch can be operated either as a 3-pin single-pole, double-throw (SPDT) or as a two-pin single-pole, single-throw (SPST) switch. When used as a 3-pin SDPT...

Universal Aluminium Mounting Hub for 3mm Shaft – Pololu 1078 These universal mounting hubs are designed to allow custom wheels and mechanisms to be fitted to 3mm motor shafts. They will work...

Universal Aluminium Mounting Hub for 3mm Shaft – Pololu 1079 These universal mounting hubs are designed to allow custom wheels and mechanisms to be fitted to 3mm motor shafts. They will work...

Wheel 90x10mm - Black (2-Pack) - Pololu 1435 These plastic wheels are great for use in robotics, custom RC vehicles or other projects. They come in black and can be press-fit onto a 3mm "D" motor...

12mm Hex Wheel Adapter for 4mm Shaft - Pololu 2684  These light-weight aluminium shaft adapters can connect a typical motor output shaft with a 12 mm hex shaft that is compatible with many...

Universal Aluminium Mounting Hub for 3mm Shaft, M3 Holes (2-Pack) - Pololu 1996 These universal mounting hubs are designed to allow custom wheels and mechanisms to be fitted to 3mm diameter motor...

Universal Aluminium Mounting Hub for 5mm Shaft, M3 Holes  – Pololu 1998 These universal mounting hubs are designed to allow custom wheels and mechanisms to be coupled with 5mm diameter...

  Universal Aluminium Mounting Hub for 4mm Shaft – Pololu 1081 These universal mounting hubs are designed to allow custom wheels and mechanisms to be fitted to 4mm motor shafts. They will...

Universal Aluminium Mounting Hub for 5mm Shaft – Pololu 1203 These universal mounting hubs are designed to allow custom wheels and mechanisms to be fitted to 5mm motor shafts. They will work...

Universal Aluminium Mounting Hub for 6mm Shaft, 4-40 Holes (2-pack) - Pololu 1083 These universal mounting hubs are designed to allow custom wheels and mechanisms to be connected to 6mm motor shafts...

3mm Hexagonal Shaft Adapter for LEGO Wheels - Pololu 1011 This adapter allows you to drive one of LEGO's wide variety of high-quality wheels with a standard 3mm hexagonal shaft, such as those found...

Black Plastic Ball Caster - 3/8" - Pololu 950 This small, lightweight black plastic ball caster comes with a 3/8" diameter plastic ball. The height of the fully assembled kit ranges from 0.4" to 0...