TETRIX MAX Motor Shaft Hubs attaches wheels and gears to motor shafts. Each hub comes with a screw and is made of heavy-duty aluminum.

• Quantity: pkg of 2
• Size: 6 mm
• Material: 7005 Aluminum
• Note: Includes 10-32 set screw

Axle Hubs are used to attach gears and wheels to axles and axles to structural elements. Features heavy-duty aluminum construction.

• Quantity: pkg of 2
• Note: Includes 10-32 set screw

Tetrix Prime Beam Attachment Hub can be used to attach a 6 mm shaft through an aluminum beam to form a pivot. Made of acetal plastic. Requires Tetrix Prime; Thumbscrews and Socket Head Cap Screws, sold separately.

• Weight: 6.9 grams per hub
• Quantity: pkg of 2
• Material: Molded acetal
• Nominal Size: 32 mm x 19 mm x 18 mm

Tetrix Prime 6MM Shaft Servo Hub allows you to attach servos to 6 mm axles using this shaft hub. Made of durable acetal plastic.

• Weight: 3.4 grams per hub
• Material: Molded acetal
• Nominal Size: 16 mm diameter x 17 mm

This pack offers more than 100 TETRIX motion elements recommended for use with an assortment of gears and wheels. Perfect for outfitting entire classrooms or robotics competition teams with all the hub and axle spare parts needed for getting robots running smoothly.

Includes:

• Variety of axles in every length and diameter offered
• Assortment of spacers, bushings, hubs, couplers, and set collars

500 Key Hub. This hub fits all AndyMark wheels.

The machine key is not included with this hub.

Specifications:

• Material: 6061 Aluminum
• Bore: 0.501-505" diameter bore, with 1/8" keyway
  • 1/8x1/8x0400 Machine Key, steel (am-1018)
  • 1/8x1/8x0700 Machine Key, steel (am-1043)
• Bolt Pattern: 0.204" diameter holes, evenly spaced on a 1.875" diameter bolt circle
• Outside diameter: 2.25"
• Weight: 0.1 pound

375 Key Hub. This hub fits all AndyMark wheels. These hubs now feature a 1.125" boss centering feature.

Specifications:

• Material: 6061 aluminum
• Bore: 3/8" inside diameter, with a 3/32" keyway
• Bolt Pattern: Six - 0.204" diameter holes, evenly spread on a 1.875" diameter bolt circle.
• Finish: tumbled
• Weight: 0.11 pound
• Outside diameter: 2.25 inches

NOTE: Some of these hubs feature an unneeded key way. These are not needed and will not hinder performance of the hub.

This 8mm keyed hub fits all AndyMark wheels. This hub is designed to fit onto the output shaft of the 2.5" CIM Motor. The boss on the back of this hub centers plate sprockets concentrically with the hub.

Specifications:

• Material: 6061 aluminum
• Bore: 8mm (0.315") hole with 2mm keyway (machine key: am-1121)
• Bolt Pattern: Six 0.204" diameter holes, evenly spread on a 1.875" diameter bolt circle.
• Weight: 0.11
• Outside diameter: 2.25"

This is the "500EX Key Hub". It is a slightly different version of the 500 Key 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.

The bore is a 1/2" hole with two 1/8" keyways. Only one keyway is needed to drive most wheels, so the second one is extra.

This hub fits all AndyMark wheels.

Also, the keyways are consistently aligned with the mounting holes.

Specifications:

• Material: 6063 Aluminum
• Bore: 0.502-508" diameter bore, with 1/8" keyway (2)
• Bolt Pattern: 0.204" diameter holes, evenly spaced on a 1.875" diameter bolt circle
• Outside diameter: 2.25"
• Weight: 0.1 pound

This is a 10mm Key Hub. This hub fits all AndyMark wheels. 

The machine key is not included with the hub.

Specifications:

• Material: 6061 Aluminum
• Bore: 10mm (0.374 inch), with a 4mm (0.157 inch) keyway
• Bolt Pattern: Six - 0.204" diameter holes, evenly spread on a 1.875" diameter bolt circle.
• Finish: tumbled
• Outside diameter: 2.25 inches
• Weight: 0.11 pound

Product Overview: 
This hub features a .375" Hex bore and fits all AndyMark wheels. The bolt pattern is designated as 6 holes evenly spaced on a 1.875" diameter bolt circle. The hex broach is consistently cut to be aligned with the holes.

Specifications:

• Material: 6061 Aluminum
• Bore: 0.376 - 0.380 hex bore (broached)
• Bolt Pattern: 0.204" diameter holes, evenly spaced on a 1.875" diameter bolt circle
• Outside diameter: 2.40"
• Weight: 0.11 pounds

This part is designed and fabricated in Indiana, USA.

This hub fits all AndyMark wheels, and the bore fits the shaft of our Snow Blower Motor. 

The bolt pattern is designated as 6 holes evenly spaced on a 1.875" diameter bolt circle. The DD broach is consistently cut to be aligned with the holes.

Specifications:

• Material: 6061 Aluminum
• Bore: 10mm (0.394 inch) diameter DD bore, with 0.294 wide (broached)
• Bolt Pattern: 0.204" diameter holes, evenly spaced on a 1.875" diameter bolt circle
• Outside diameter: 2.40"
• Weight: 0.084 pounds
• Overall width: 0.49 inch

The mounting holes and the DD bore are now aligned and consistent.

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

Each hub now has a "flower" pattern that fits and keys into the 42T 5mm HTD Pulley.

Each hub now has a "flower" pattern that fits and keys into the 42T 5mm HTD Pulley.

Each hub now has a "flower" pattern that fits and keys into the 42T 5mm HTD Pulley.