2" Stealth Wheel, 3/8" Hex Bore, Green, 35A Durometer (am-3436_green)

Compliant wheels are not intended for moving robots, but moving objects. Compliant wheels give way to allow rigid objects to be manipulated easily. A line of multiple wheels on a driven hex shaft creates a very effective roller that ignores variations in the objects being driven. This makes for high-performance intakes and internal conveyors. The wheels are sized for an interference fit and tend to stay in place on a shaft, though a shaft collar may be used to make absolutely sure the wheels stay clear of other mechanisms or maintain consistent spacing.

The hex bore versions of this wheel are undersized, and are intended to be an interference fit on their respective hex shafts. This interference fit allows for effective torque transfer from the hex shaft to the wheel, as well as allowing the wheel to remain in place along the shaft without the need for spacers or collar clamps:

Different durometer ratings give each wheel unique characteristics. Green wheels (35A durometer) are the softest and most compliant around objects, while orange (40A), maroon (45A), and blue (50A) wheels are increasingly firm. The increased firmness also allows the latter wheels to carry a higher RPM rating. Check out the downloads tab for a chart showing wheels and their maximum RPM. 

Specifications

• Bore: 1/2 in. Hex, 3/8 in. Hex, Nub Bore
• Diameter: 2 in.
• Durometer: 35A (Green), ⠀40A (Orange), ⠀45A (Maroon), ⠀50A (Blue), 60A (Black)
• Hole Pattern: Qty 2 3.5 mm Holes on a 16 mm Circle for 8 mm bore wheels
• Material: TPU
• Maximum RPM: 6000 - 9000
• Weight: 0.035 lb.
• Width: 0.5 in.

Documents

Layout Print(s)

am-3571 2IN 375 Hex Compliant Wheel REV3.PDF

am-3462 2IN 500Hex Compliant Wheel REV3.PDF

am-3572 2IN 8mm Compliant Wheel REV4.PDF

CAD File(s)

am-3571 2IN 375Hex Compliant Wheel REV2.STEP

am-3572 2IN 8mm Compliant Wheel REV2.STEP

am-3462 2IN Molded 500Hex Compliant Wheel REV2.STEP

Additional File(s)

2 inch Compliant Wheel Expansion.pdf

Don't see what you need?

Omni-directional wheels in the smallest diameter offered by any common FIRST Robotics Competition or FIRST Tech Challenge supplier.

These 50 mm / 2 inch omni wheels features two different durometers:

• Soft 35A rollers for high traction
• Hard 90A rollers for long life

They also have a standard 14 mm Hex Bore, letting you choose between 3 different bores:

• 0.375 in. Hex - includes 14 mm Hex to 3/8 in. Hex Adapter (am-3905)
• 0.5 in. Hex - includes 14 mm Hex to 1/2 in. Hex Adapter (am-3904)
• 14 mm Hex - no adapters included

Stack several of these wheels on a shaft to craft an unstoppable intake system for your robot that can be used to center game pieces.

Specifications

• Bore: 0.375 in. Hex, 0.5 in. Hex, 14 mm Hex
• Diameter: 50 mm, 1.96 in.
• Durometer: 35A, 90A
• Load Capacity: 10 lbs
• Material: Glass Filled Nylon Body, Acetal Inserts, Thermoplastic Elastomer Rollers
• Weight: 0.076 lbs

Churro is a versatile extruded aluminum hex profile. The outside of this part is a 1/2 in. hex with small concave dimples which act as weight savings. There is an inside hole is sized at 0.2 in. in order to fit 1/4-20 thread forming screws. No tapping or threading is needed, as long as a thread forming screw is used. The outside hex size fits a 1/2 in. wrench or socket. 

The 3-foot churro, our most popular length and the best value on shipping, is available anodized in red, blue, purple, gold and black to dress up your robot. Anodized finish is hardy and doesn't flake off or add thickness like paint, but it is possible for a scratch to expose the bare metal beneath. Take basic precautions in your shop like watching for sharp tools or overtightening this churro in a vise.

Specifications:

• Material: 6005A Aluminum
• Inside diameter: 0.231 in.
• Outside width: 0.495 in. Hex, across flats
• Length: Selectable Above
• Weight: 0.16 lbs/ft