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MicroRAX is a miniature light-weight T-Slot style building system. Suitable for use on your desktop or bench top to build sci…
This motor from Pololu has a long (0.365" or 9.27 mm), D-shaped metal output shaft that matches the Pololu wheel 42x19mm and …
These micro gearmotors are incredibly tough and feature full metal gears. They have a gear ratio of 210:1 and operate up to 1…
This is the Multi-Chassis Tank Kit, an easy to assemble and use robot chassis platform. The Multi-Chassis kit provides you wi…
These precision gearmotors are incredibly tough and feature full metal gears to help you drive wheels, gears, or almost anyth…
These gray “skate” wheels have an outer diameter of 2.975”, an inner diameter of 0.87”, and a width of 0.94”. When …
These wide flat bearing mounts attach to the face of a channel or plate and have a ball bearing with a 1/2” bore for shafts…
These clamping hubs are a great and cost-effective choice when attaching hub mount gears or wheels to shafts or tubes and can…
These blue precision disk wheels have an outer diameter of 3”, a width of 0.23”, and utilize the 0.77” hub pattern. The…
These 18" long aluminum tubes have an outer diameter of 1", an inner diameter of 0.82", and a wall thickness of 0.09". When u…
This non-flanged "608" sized ball bearing fits nicely into a 22mm diameter hole and has a 8mm bore. This makes it perfect for…
**Description**: The Pololu 3pi robot is a complete, high-performance mobile platform featuring two micro metal gearmotors, f…
These long alloy steel 7/64" hex keys. The ball end style on each hex key allows a machine screw to be tightened at an angle.…
These 1" long stainless steel shafts have a diameter of 1/2". These shafts are solid, which makes them an ideal choice for ax…
These un-threaded aluminum clamping hubs are perfect for standard applications that need shafting or tubing 1" in diameter se…
**Replacement:** None. We are no longer carrying the Sphero in our catalog. This page is for reference only. Sphero is our f…
This shield makes it easy to connect up a pair of HUB-ee wheels to an Arduino Uno or Leonardo board. You can power two wheels…
At 120mm in diameter and 60mm wide, these are some seriously burly little wheels. The tire is soft black rubber with deep tre…
These 1/2" bore hub spacers allow you to space your sprocket, gear, wheel, or other attachment from the mating hub. These hub…
This is a set using a pair of [42x19mm wheels](http://www.sparkfun.com/commerce/product_info.php?products_id=8899), a pair of…
These 8" long stainless steel shafts have a diameter of 3/8". These shafts are solid, which makes them an ideal choice for ax…
These aluminum beams are great for making unique links and connections in your [Actobotics](https://www.sparkfun.com/pages/Ac…
These 12" long aluminum tubes have an outer diameter of 1", an inner diameter of 0.82", and a wall thickness of 0.09". When u…
These 1" long stainless steel shafts have a diameter of 1/8". These shafts are solid, which makes them an ideal choice for ax…
These threaded aluminum channel standoffs are 1.32” long and have a thread pitch of 6-32, and an outer diameter of 0.25”.…
These 10" long stainless steel shafts have a diameter of 1/2". These shafts are solid, which makes them an ideal choice for a…
These clear pink precision disk wheels have an outer diameter of 4”, a width of 0.23”, and utilize the 0.77” hub patter…
These 5" long stainless steel shafts have a diameter of 3/16". These shafts are solid, which makes them an ideal choice for a…
0.218" tall, brass [swage](http://www.rafhdwe.com/swage.htm) attachable stand off. Non-threaded.
These 4" long stainless steel shafts have a diameter of 3/16". These shafts are solid, which makes them an ideal choice for a…
This servo plate allows you to attach gears and mechanical structures to your standard sized servo. There are 4 6-32 tapped h…
Brushless 9 Click is a compact add-on board suitable for controlling BLDC motors with any MCU.
These stainless steel shaft couplers allow you to couple two size shafts together. They can be used for connecting motor shaf…
These are different wheel combinations for the Tamiya twin gear box. All tire types press-fit directly onto the Tamiya axel w…
These heavy duty wheels have a diameter of 6” and a width of 1”. They have a hard inner plastic core and a smooth outer r…
These servo gears are made specifically to fit a Hitec C1 servo spline, allowing you to mate other gears to your servo. They …
These red precision disk wheels have an outer diameter of 4”, a width of 0.23”, and utilize the 0.77” hub pattern. Thes…
Multi Stepper Click is a compact add-on board that contains a bipolar stepper motor driver.
These 8" long stainless steel shafts have a diameter of 1/8". These shafts are solid, which makes them an ideal choice for ax…
These gray “skate” wheels have an outer diameter of 4.90”, an inner diameter of 0.87”, and a width of 0.94”. When u…
H-Bridge Driver 2 Click is a compact add-on board that contains an H-bridge gate driver, also known as a full-bridge pre-driv…
This flanged ball bearing fits nicely into a 1/2" diameter hole and has a 1/4" bore. This makes it perfect for all [Actobotic…
These 4" long stainless steel shafts have a diameter of 3/8". These shafts are solid, which makes them an ideal choice for ax…
This custom-designed plastic wheel from Pololu has a rubber tire measuring 1.65" (42 mm) in diameter and is designed to fit t…
Set screw hubs offer a cheap way to attach hub mount gears or wheels to a shaft. The hub offers 4 equally spaced 6-32 tapped …
