24 Tooth HTD Pulley 1/2" Hex Bore

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!

These are all of our 9 mm wide 5 mm pitch HTD synchronous timing belt offerings. All of these belts are a composite of flexible rubber with a fiberglass tensile member throughout. Synchronous timing belts, also known as a toothed belt or synchronous belt, are designed to eliminate slippage and keep any number of objects rotating at a constant rate. We offer both genuine Gates brand belts as well as lower-cost generic brand belts. 

Current Belt Offerings

Parts are organized by the following scheme: (Tooth Count - Trade Number - AndyMark part number)

Gates Brand Belts

• 48T - 240-5M-09 - am-3274
• 60T - 300-5M-09 - am-4659

Generic Brand Belts

• 40T - 200-5M-09 - am-3272
• 45T - 225-5M-09 - am-3273
• 48T - 240-5M-09 - am-3662
• 70T - 350-5M-09 - am-4359
• 93T - 465-5M-09 - am-3378
• 105T - 525-5M-09 - am-3850

This is the "500EX Hex Hub" the bore is a 1/2" Hex Hole. It is a slightly different version of the 500 Hex Hub. It is manufactured differently, as it is extruded. Also, there is a 1.124" diameter boss on each side of the hub flange, providing a location for 1.125" bore flat sprockets. Are you having a hard time keeping your sprocket concentric with your hub? This hub is the trick.

This is the hub featured in the 2014 and 2015 Kit of Parts Drive Chassis and fits all AndyMark wheels. 

Specifications:

• Material: 6063 Aluminum
• Bore: 1/2" Hex
• Bolt Pattern: 0.204" diameter holes, evenly spaced on a 1.875" diameter bolt circle
• Outside diameter: 2.25"
• Weight: .088

The AndyMark 2x1 Elevator System is designed to be a robust, easy to use solution for building reliable linear motion systems. This easy-to-build bearing kit solves one of the most difficult parts of building these mechanisms by providing precision cut sheet metal brackets to support the rollers and bearings for a smooth single-stage linear system. Use this in conjunction with your existing stockpile of 2" x 1" aluminum tubing and gussets to quickly create linear motion systems of a variety of sizes.

Note: This product is specifically designed for 2"x1" (outside dimensions) aluminum box tubing. It is not compatible with other sizes of aluminum tubing. Sold as an unassembled kit.

Individual Components within Bundle: 

• 4 - Large Bearing Plate for 2x1 Elevator (am-3794a)
• 4 - Small Bearing Plate for 2x1 Elevator (am-3793a)
• 8 - 3/4" OD, .382" ID, 1" long Aluminum Spacer (am-1450)
• 8 - 5/8" OD, .382" ID, 3/4" long Aluminum Spacer (am-1451)
• 8 - Nylon Roller for 2x1 Elevator (am-1449)
• 8 - 3/8-16 x 3" Hex Bolt (am-1452)
• 8 - 3/8-16 Nylon Insert Nut (am-1054)
• 48 - 3/16" Steel Rivet, 1/8-1/4" Grip (am-1226)
• 8 - 1614ZZ Bearing (am-0209)
• 8 - 1/4" Washer (am-1027)
• 4 - 10-32 Nylon Insert Nut (am-1042)
• 4 - 10-32 x 2.75" SHCS (am-1397)
• 4 - .192" ID, .250" OD, 2.14" long Brass Tube (am-0602)