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    24 Tooth 0.5 in. Hex Bore 5 mm HTD 18 mm Wide Aluminum Pulley

    This robust 5mm HTD 18mm wide aluminum pulley is a lightweight motion component thoughtfully designed specifically for FIRST Robotics Competition robots. It features a lightweight 2024 aluminum core, made from our 24 Tooth Aluminum Pulley Stock. Unlike other products on the market, this pulley uses super strong steel flanges that are formed onto the pulley body instead of using a traditional press fit or crimps for maximum flange retention and durability. This pulley has small bosses on each side that allow them to be installed against an FR8ZZ Round or FR8ZZ Hex bearing without rubbing on the outer races for smooth operation. 

    This version of the pulley supports either two 9mm wide belts or one 15mm wide belt

     

      Specifications

       

      • Belt Profile: 5 mm pitch HTD timing belt
      • Bore: 0.5 in. Hex
      • Flange Diameter: 1.63 in.
      • Material: Aluminum
      • Outside Diameter: 1.46 in.
      • Pitch Diameter: 1.504 in.
      • Teeth: 24
      • Weight: 0.119 lbs
      • Width: 0.8 in.
      MFR Part #: am-4626
      $19.00
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      2" Compliant Wheel, 1/2 inch Hex, 35 Durometer Green

      #am-3462_green
      $8.00 $10.42
      ( 60 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

      Don't see what you need?

      Sushi Roller Intake Wheels - 1/2 in. Hex, 40a (Orange)

      #am-4541_orange
      $6.00

      The Sushi Roller Intake Wheels are an excellent choice for robot intakes, internal conveyors, feeder mechanisms, or anywhere you need a durable, compact and grippy roller. These rollers are made with a robust polycarbonate hex bore hub, so no external hub is necessary - just slide them onto a hex shaft, constrain them axially and you are good to go. Available in a range of durometers for a wide variety of applications, these cute little rollers are great for getting a grip on things!

       

      Specifications

      • Bore: 0.5 in. Hex, 5 mm Hex, 0.375 in. Hex
      • Core Material: Polycarbonate
      • Diameter: 1 in.
      • Durometer: 35A (Green), 40A (Orange), 50A (Blue), 60A (Black)
      • Tread Material: TPU
      • Weight: 0.022 lbs
      • Width: 1 in.

      4" Compliant Wheel, 1/2" Hex Bore, 35A Durometer, Green

      #am-3480_green
      $14.50
      ( 39 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 axle creates a very effective roller that ignores variations in the objects being driven. This makes for high-performance intakes and internal conveyors.



      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), blue (50A), and black (60A) 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. 

       

        Please note maroon wheels are only intended for use in FTC. If more powerful motors are used to drive it the spokes may fail.

         

         

        Specifications

         

        • Bore: 1/2 in. Hex, 3/8 in. Hex, Nub Bore, 5 mm Hex
        • Diameter: 4 in.
        • Durometer: 35A (Green), ⠀40A (Orange), ⠀45A (Maroon), ⠀50A (Blue), ⠀60A (Black), ⠀80A (Gray)
        • Hole Pattern: Qty 4 3.5 mm Holes on a 16 mm Circle for 8 mm bore wheels
        • Material: TPU, ⠀Polycarbonate
        • Maximum RPM: 3000-9000
        • Weight: 0.228 - 0.269 Lbs
        • Width: 1 in.

        Documents

        Layout Print(s)

        am-3562 4IN 375Hex Compliant Wheel REV3.PDF

        am-3563 4IN 8mm Compliant Wheel REV4.PDF

        am-3480 4IN 500Hex Compliant Wheel REV3.PDF

        am-4538 4IN 5mm Hex Compliant Wheel.PDF

        CAD File(s)

        am-3562 4IN 375Hex Bore Compliant Wheel REV2.STEP

        am-3563 4IN 8mm Round Compliant Wheel REV2.STEP

        am-3480 4IN 500Hex Bore Compliant Wheel REV2.STEP

        am-4538 4IN 5mm Hex Compliant Wheel.STEP

        Guide(s)

        4 inch Compliant Wheel Expansion.pdf

        #25 Connecting Link for Roller Chain

        #am-0371
        $1.54 $1.74
        ( 90 In stock)

        #25 Connecting Link (Master Link) 

        Specifications:

        • Material: Steel
        • Style: Roller Chain - Spring Clip
        • Type: Connecting Link
        • Size: #25
        • Pitch: 0.250 inch
        • Weight: 0.01 lbs

        6 Gauge Compression Lug Connector 1/4 Stud Hole BURNDY #: YAZV6CTC14FX

        #am-0805
        $5.50
        ( 213 In stock)

        This is a heavy-duty compression lug from BURNDY for 06 AWG wire. This compression log can be easily crimped with the Cable Lug Crimping Tool.

         

        Specifications

        • Gauge: 06 AWG
        • Hole Size For Stud: 0.25 in.
        • Material: Copper
        • Overall Length: 2.03 in.
        • Tongue Width: 0.48 in.
        • Weight: 0.01 lbs
        • Wire Strip Length: 1.18 in.

        4" Stealth Wheel, 1/2 Hex Bore, Orange,40A Durometer (am-2647_orange)

        #am-2647_orange
        $12.00 $14.11
        ( 70 In stock)

        The inside black portion of this wheel is made from molded polycarbonate plastic. The outer tread is TPU (Thermoplastic PolyUrethane). This robust but lightweight wheel provides good traction on carpet and soft tiles. Stealth wheels are the perfect drive wheel for smaller (<50 lb.) robots, or for intakes and other auxiliary robot mechanisms. These wheels are available in a variety of bores and durometers. 4 in. Stealth Wheels feature a 6 bolt pattern on a 1.875 in. bolt circle for mounting sprockets, hubs, and gears. Nub Bore Stealth Wheels feature a 4 bolt pattern on a 16 mm bolt circle found in most FIRST Tech Challenge building systems. The lower the durometer the softer the wheel is, this makes it wear away faster, but also makes it more grippy.

        Product Usage:
        Many thread locking materials are not compatible with polycarbonate and can eat away at the plastic. Be sure to check which adhesives are okay to use with this product.

        Specifications

        • Bore: 1/2 in. Hex, 3/8 in. Hex, Nub Bore, 5 mm Hex
        • Diameter: 2 in., 4 in.
        • Durometer: 35A (Green), ⠀40A (Orange), ⠀50A (Blue), ⠀60A (Black), ⠀80A (Gray)
        • Hole Pattern: Qty 4 3.5 mm Holes on a 16 mm Circle for 8 mm bore wheels
        • Material: TPU, Polycarbonate
        • Weight: 0.23lb, 0.1lb
        • Width: 1 in.

        Documents

        Layout Print(s)

        am-3664 2in 5mm Hex Stealth Wheel REV4.PDF

        am-3156 2IN 8mm Stealth Wheel REV3.PDF

        am-3436 2in 375Hex Stealth Wheel REV3.PDF

        am-3155 2in 500Hex Stealth Wheel REV3.PDF

        am-3665 4in 5mm Hex Stealth Wheel REV3.PDF

        am-2648 4IN 8mm Stealth Wheel REV5.PDF

        am-3435 4in 375Hex Stealth Wheel REV3.PDF

        am-2647 4in 500Hex Stealth Wheel REV3.PDF

        CAD File(s)

        am-3664 2in 5mm Hex Bore Stealth Wheel REV3.STEP

        am-3156 2IN 8mm Stealth Wheel.STEP

        am-3436 2IN 375Hex Stealth Wheel REV2.STEP

        am-3155 2IN 500Hex Stealth Wheel REV2.STEP

        am-3665 4IN 5mm Hex Stealth Wheel REV2.STEP

        am-2647 4inWheel 500 Hex REV2.STEP

        am-3435 4in Wheel Integrated Hub 375 HEX with Tread REV2.STEP

        am-2648 4inWheel 8mm Hub REV2.STEP

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

        #am-2986
        $9.00 $10.42
        ( 189 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

        4" Stealth Wheel, 1/2" Hex Bore, 50A, Blue, Durometer(am-2647_Blue)

        #am-2647_Blue
        $12.00 $12.15
        ( 68 In stock)

        The inside black portion of this wheel is made from molded polycarbonate plastic. The outer tread is TPU (Thermoplastic PolyUrethane). This robust but lightweight wheel provides good traction on carpet and soft tiles. Stealth wheels are the perfect drive wheel for smaller (<50 lb.) robots, or for intakes and other auxiliary robot mechanisms. These wheels are available in a variety of bores and durometers. 4 in. Stealth Wheels feature a 6 bolt pattern on a 1.875 in. bolt circle for mounting sprockets, hubs, and gears. Nub Bore Stealth Wheels feature a 4 bolt pattern on a 16 mm bolt circle found in most FIRST Tech Challenge building systems. The lower the durometer the softer the wheel is, this makes it wear away faster, but also makes it more grippy.

        Product Usage:
        Many thread locking materials are not compatible with polycarbonate and can eat away at the plastic. Be sure to check which adhesives are okay to use with this product.

        Specifications

        • Bore: 1/2 in. Hex, 3/8 in. Hex, Nub Bore, 5 mm Hex
        • Diameter: 2 in., 4 in.
        • Durometer: 35A (Green), ⠀40A (Orange), ⠀50A (Blue), ⠀60A (Black), ⠀80A (Gray)
        • Hole Pattern: Qty 4 3.5 mm Holes on a 16 mm Circle for 8 mm bore wheels
        • Material: TPU, Polycarbonate
        • Weight: 0.23lb, 0.1lb
        • Width: 1 in.

        Documents

        Layout Print(s)

        am-3664 2in 5mm Hex Stealth Wheel REV4.PDF

        am-3156 2IN 8mm Stealth Wheel REV3.PDF

        am-3436 2in 375Hex Stealth Wheel REV3.PDF

        am-3155 2in 500Hex Stealth Wheel REV3.PDF

        am-3665 4in 5mm Hex Stealth Wheel REV3.PDF

        am-2648 4IN 8mm Stealth Wheel REV5.PDF

        am-3435 4in 375Hex Stealth Wheel REV3.PDF

        am-2647 4in 500Hex Stealth Wheel REV3.PDF

        CAD File(s)

        am-3664 2in 5mm Hex Bore Stealth Wheel REV3.STEP

        am-3156 2IN 8mm Stealth Wheel.STEP

        am-3436 2IN 375Hex Stealth Wheel REV2.STEP

        am-3155 2IN 500Hex Stealth Wheel REV2.STEP

        am-3665 4IN 5mm Hex Stealth Wheel REV2.STEP

        am-2647 4inWheel 500 Hex REV2.STEP

        am-3435 4in Wheel Integrated Hub 375 HEX with Tread REV2.STEP

        am-2648 4inWheel 8mm Hub REV2.STEP