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    2 inch Omni Wheel, 35A 1/2 inch Hex

    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
    MFR Part #: am-3951_green
    $19.00
    Availability: 6 in stock
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    Hex Molded Spacers, 1/2 Hex, 0.5 inch length

    #am-3948-500
    $1.25

    Whether you are building an elite custom drivetrain or a championship manipulator, you need your components to stay where they're supposed to. These lightweight spacers come in 3/8", 1/2", and 5 mm hex bores to accommodate the most common shaft types They can also be used on round shafts and bolts (5mm is great for #10 hardware!). If you need to space a lot grab some 1" spacers. If you need ultimate precision pick up some 0.063" spacers. Not sure which spacers you need? Keep a handful of all six sizes in your shop and never go hungry for spacers again! 

     

    These spacers are molded in black polycarbonate, a tough, crack resistant material that FIRST teams are familiar with. These spacers should resist stress cracking. If polycarbonate isn't rugged enough for your high load application or you need custom length spacers, check out our Aluminum Hex Spacer Extrusion.

     

    Specifications

     

    • Inside Diameter: 0.375 in. Hex, 0.50 in. Hex, 5 mm Hex
    • Length: 0.063 in., 0.125 in., 0.188 in., 0.250 in., 0.375 in., 0.50 in., 1.00 in.
    • Material: Polycarbonate
    • Outside Diameter: 0.787 in. Round
    • Weight: Up to 0.014 lbs

    2" Compliant Wheel, 1/2 inch Hex, 35 Durometer Green

    #am-3462_green
    $8.00
    (72 In stock)

    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:

     

    Compliant Wheel Sizing

     

    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

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    Battery Flag

    #am-0122
    $2.00
    (In stock)

    These plugs are intended to indicate batteries that are charged. They fit into an Anderson Power Products (APP) SB-50B Connector.

    Usage:Batteries not fully charged should not have a plug inserted into their APP connector. Instead they should be put on charge.

    Specifications

    • Material: Plastic
    • Size: 2.05 in. 1.48 in. 0.24 in.
    • Weight: 0.014 lbs

    Bearing, 1/2 inch Hex Bore, Flanged, (FR8ZZ-HexHD)

    #am-2986
    $8.00
    (87 In stock)

    This is a Heavy Duty Hex Bearing which outperforms our previous 1/2" Hex Bearings as it has a Heavy Duty Inner Race. This FR8ZZ-HexHD bearing, 1/2" hex bore, flanged, heavy duty inner race, shielded ball bearing, has an inner race that is thicker and stronger than our recent offering of a similar bearing (am-0279). This bearing has more material between the corners of the hex bore and the edge of the race making it stronger and much less likely to crack under high load.

    This bearing is guaranteed to have a stronger, thicker race. 100% of these bearings have been quality checked for a smooth fit over 1/2" hex stock here at AndyMark. Many of our long-time customers will recognize this bearing, as it is the same version we sold back in 2008-2011, and we did not have any failures. Now, it is renamed and quality checked for your high load needs - including drive chassis with cantilevered wheels.


    Specifications:

    • Inside diameter: 0.500-0.502 inch hex bore
    • Outside diameter: 1.125 inch
    • Flange thickness: 0.062 inch
    • Overall thickness: 0.312 inch
    • Weight: 0.05 pound

    20 Amp MINI Yellow Fuse

    #am-3605
    $1.50
    (In stock)

    This 20 Amp fuse is used in FIRST Tech Challenge batteries and the FIRST Robotics Competition Power Distribution Panel (am-2856).

    Specifications:

    • Color: Yellow
    • Amps: 20
    • Max Voltage: 32
    • Style: MINI®
    • Specification: SAE J2077
    • Type: Blade Fuse

    10 Amp Mini Red Fuse

    #am-4053
    $2.00

    The MINI® Fuse is the standard for vehicle circuit protection. Its miniature design meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse of recommended choice for protection.

     

    This mini fuse can be used in our Power Pole Distribution Board (am-3699), as well as a replacement in the Power Distribution Panel (am-2856)