16 tooth, 25 series
Specifications:
Each hub now has a "flower" pattern that fits and keys into our 42T 5 mm HTD Pulley, which means you are no longer constrained to our legacy 500EX Hex Hub for compatibility with this pulley. Every hub still maintains a closed-profile hole for maximum strength. Every shaft hub has been designed with bearing bosses on both sides that have been sized appropriately for the mating bearings that would pair with the bore through the hub, which means you can run each hub right against a bearing with no need for extra spacers. All of these hubs are also made from 7075-T6 aluminum, which is much stronger than the previously used 6061-T6, 6005, and 6105 alloys from our older designs. Where possible, the shoulder on shaft hubs was reduced to 7/8" in diameter for an easier fit with our molded plastic wheels, while still maintaining a precise 1.125" diameter boss for locating in wheels, sprockets, gears, and more.
The holes are evenly spaced on a 1.875 in. circle and 0.201 inches in diameter. That's a perfect size for #10 bolts!
Learn how to attach these hubs to AndyMark wheels by watching this video!
1/2 in. hex shaft is the life of many competitive robot components. This 1018 steel shaft is available in four lengths. The five inch shaft was used in various Modulox gearboxes and may come with a 1/4 in. hole drilled in one end. The other sizes can be used as shaft stock, ready to be cut to length as needed. The stock lengths ship un-plated ready for your choice of finish.
Bolt Circle: 1.875" diameter,0.206" diameter holes Inside Diameter: 1.1245" Material: 6061 aluminum Number of Teeth: 66 Outside Diameter: 5.396 Pitch Diameter: 5.267 Series: #25 Thickness: 0.086-0.092 in. Weight: 0.25 lb
The 57 Sport is a competition tested high performance line of planetary gearboxes from AndyMark and BaneBots. The 57 Sport features numerous improvements over previous planetary gearboxes used on FIRST Robotics Competition robots.
This Inline Chain Tensioner for #25 series roller chain is perfect to adjust the desired tension in a long run of chain on mechanisms such as elevators and arms. This is ideal where there is at least a ~3" section of chain that never passes over a sprocket in a given mechanism. Pair this with two #25 Master Links and integrate this to your project for an easy-to-use chain tension solution!
The design of this product was inspired by Misumi's Chain Turnbuckles. This product has been improved to be compatible with imperial-sized wrenches.
CAD File(s)
am-3915_25 25 Chain Inline Tensioner REV3.STEP
Layout Print(s)
am-3915_25 #25 Chain Inline Tensioner REV3.PDF