The nub is a series of hubs intended to connect motion components to spinning shafts, like sprockets gears, pulleys and wheels. It supports the output shaft of the AndyMark NeveRest motors as well as the other motors on the market. It supports the AndyMark 6mm D shafts for robust motion systems and impeccable torque transfer. The four mounting holes on these nubs are sized at 0.128" diameter, with the intention of accepting a #6-32 threaded screw. They are not tapped, but can be tapped by most machine screws due to this diameter.

The nub is a series of hubs intended to connect motion components to spinning shafts, like sprockets gears, pulleys and wheels. It supports the output shaft of the AndyMark NeveRest motors as well as the other motors on the market. It supports the AndyMark 6mm D shafts for robust motion systems and impeccable torque transfer. The four mounting holes on these nubs are sized at 0.128" diameter, with the intention of accepting a #6-32 threaded screw. They are not tapped, but can be tapped by most machine screws due to this diameter.

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

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

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

The nub is a series of hubs intended to connect motion components to spinning shafts, like sprockets gears, pulleys and wheels. It supports the output shaft of the AndyMark NeveRest motors as well as the other motors on the market. It supports the AndyMark 6mm D shafts for robust motion systems and impeccable torque transfer.

The nub is a series of hubs intended to connect motion components to spinning shafts, like sprockets gears, pulleys and wheels. It supports the output shaft of the AndyMark NeveRest motors as well as the other motors on the market. It supports the AndyMark 6mm D shafts for robust motion systems and impeccable torque transfer.

The four mounting holes on these nubs are sized at 0.128" diameter, with the intention of accepting a #6-32 threaded screw. They are not tapped, but can be tapped by most machine screws due to this diameter.

Nub Specifications:

• Length: 0.625"
• Height: 0.625"
• Material: 6105-T5 Aluminum
• D-Bore: 6mm-D
• Round Bore: 6mm
• Single Boss Overall Depth: 10mm
• Double Boss Overall Depth: 13mm
• XL Double Boss Overall Depth: 22mm
• Set Screw: Holes sized for 10-32 Set Screw (Set Screw Included)
• Hole pattern: Four holes for 6-32 screws on a 16mm bolt circle

The nub is a series of hubs intended to connect motion components to spinning shafts, like sprockets gears, pulleys and wheels. It supports the output shaft of the AndyMark NeveRest motors as well as the other motors on the market. It supports the AndyMark 6mm D shafts for robust motion systems and impeccable torque transfer. The four mounting holes on these nubs are sized at 0.128" diameter, with the intention of accepting a #6-32 threaded screw. They are not tapped, but can be tapped by most machine screws due to this diameter.

Upgrades to Nubs:
We are making improvements to the entire Nub line, including moving from the original machined design to one that is extruded and accepts screws more easily. Both kinds of Nubs will work fine, and you'll see the new-style Nubs (which you can identify by the open gaps between the screw holes and the edge of the Nub) as we exhaust supplies of the original Nubs.

Product Overview:
The nub is a series of hubs intended to connect motion components to spinning shafts, like sprockets gears, pulleys and wheels. It supports the output shaft of the AndyMark NeveRest motors as well as the other motors on the market. It supports the AndyMark 6mm D shafts for robust motion systems and impeccable torque transfer.

The four mounting holes on these nubs are sized at 0.128" diameter, with the intention of accepting a #6-32 threaded screw. They are not tapped, but can be tapped by most machine screws due to this diameter.

Nub Specifications:

• Length: 0.625"
• Height: 0.625"
• Material: 6105-T5 Aluminum
• D-Bore: 6mm-D
• Round Bore: 6mm
• Single Boss Overall Depth: 10mm
• Double Boss Overall Depth: 13mm
• XL Double Boss Overall Depth: 22mm
• Set Screw: Holes sized for 10-32 Set Screw (Set Screw Included)
• Hole pattern: Four holes for 6-32 screws on a 16mm bolt circle

Upgrades to Nubs:
We are making improvements to the entire Nub line, including moving from the original machined design to one that is extruded and accepts screws more easily. Both kinds of Nubs will work fine, and you'll see the new-style Nubs (which you can identify by the open gaps between the screw holes and the edge of the Nub) as we exhaust supplies of the original Nubs.

Product Overview:
The nub is a series of hubs intended to connect motion components to spinning shafts, like sprockets gears, pulleys and wheels. It supports the output shaft of the AndyMark NeveRest motors as well as the other motors on the market. It supports the AndyMark 6mm D shafts for robust motion systems and impeccable torque transfer.

The four mounting holes on these nubs are sized at 0.128" diameter, with the intention of accepting a #6-32 threaded screw. They are not tapped, but can be tapped by most machine screws due to this diameter.

Nub Specifications:

• Length: 0.625"
• Height: 0.625"
• Material: 6105-T5 Aluminum
• D-Bore: 6mm-D
• Round Bore: 6mm
• Single Boss Overall Depth: 10mm
• Double Boss Overall Depth: 13mm
• XL Double Boss Overall Depth: 22mm
• Set Screw: Holes sized for 10-32 Set Screw (Set Screw Included)
• Hole pattern: Four holes for 6-32 screws on a 16mm bolt circle

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 nub can be used to support the end of a 6mm D shaft, and be bolted to an S3 rail, a Ninja sprocket, pulley or wheel. With this you could create an idler sprocket, free spinning wheel or wheels on dead axles. This Nub also works as a bearing mount for a spinning axle.

Specifications:

• Length: 0.63 in. (16 mm)
• Height: 0.63 in. (16 mm)
• Depth: 0.394 in.
• Material: 6061-T6 Aluminum
• Bore: 0.236 in. (6 mm)
• Weight: 0.009 Pounds

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.

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 is a flat plate, acting as a hub flange. The FlexHub hubs can be inserted into this flange in order to make modular hubs, perfect for prototyping mechanisms.

We suggest using washers and lock nuts when fastening to this flange, as the slots are present for flexible alignment.

Specifications:

• Material: 6061-T6 Aluminum
• Thickness: 0.25 inch
• Bore: 0.75", fitting all FlexHubs
• Bolt pattern: 1.875" slot circle for #10 screws (6)
• Weight: 0.09 pounds