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    2.25 in. HD Mecanum Vectored Intake Wheel

    Found most commonly on the front intake rollers of FIRST Robotics Competition robots, these 2.25 in. HD Mecanum Vectored Intake wheels are a perfect simple solution to serialize game pieces on the floor before they enter your robot. They also help extend the effective "width" of an intake to help draw game pieces in from the corners of your robot. They can also be used to help serialize game pieces within a conveyor system inside your robot and pair great with  2.25 in. Compliant Wheels.  Made of high strength materials, these intake wheels are designed to be tough enough to withstand the rigors of FRC match play with rollers that are better retained for in high impact situations on the playing field.

     

    The 2.25 in. HD Mecanum Vectored Intake Wheel comes as an unassembled kit of parts. Each order for these wheels will contain two 1/16 in. Allen Wrenches (am-4405) which are required for assembly. Because of the size of the hex socket on the fasteners, it is important to use sharp-ended fresh hex keys for assembly, and not ball-end drivers. 
     

    A traditional full set consists of 2 "right" wheels and 2 "left" wheels. The "right" and "left" refer to the direction the rollers are pointing when viewing the across it's rolling axis. If the roller in the middle of the wheel points up and to the right, it's a "right" wheel, and up and to the left would be a "left" wheel.
     

    If using these as a drive wheel for a small robot platform, the configuration of these "right" and "left" wheels is important. Be aware that the "right" wheel does not mean that it goes on the right side of your robot. The proper configuration would be to have the wheels create an "X" pattern when viewing your robot from above and drawing lines parallel to the rollers as viewed. This means that a "right" wheel would be the FRONT RIGHT, and the REAR LEFT position, while the "left" wheel would be in the FRONT LEFT, and REAR RIGHT, of your robot when viewed from above. All 4 wheels are required to make a Mecanum drive holonomic system work properly.
     

    Wheel Design:

     

    Six nylon rollers spin smoothly on high strength steel axles, retained into 0.09" steel side plates.  The steel plates geometrically interface with two interior polycarbonate hubs, which form the interior of the wheel. These steel plates rest against the flange on the injection molded hub, which increases the overall bending strength of each roller seat. The two injection molded polycarbonate interior hubs are held together by the tension in all six roller axles around the wheel, with steel roll pins pressed in around the hex bore to keep everything aligned.


    Individual Hardware within Each Wheel:

    • 2 - HD Mecanum Plates (am-4418L_plate , am-4418R_plate)
    • 2 - 2.25 in. HD Mecanum Hex Hubs (am-4421_half)
    • 2 - 3/32 in. x 5/8 in. Slotted Spring Pin (am-1597)
    • 6 - 2.25 in. HD Mecanum Single Roller (am-4417)
    • 6 - 2.25 in. HD Mecanum Wheel Axle (am-4420)
    • 13 - 4-40 x 0.25 in. Button Head Cap Screw with Nylon Patch (am-1596)

     

    Specifications

    • Body Material, Inner: molded black polycarbonate
    • Body Material, Outer: Steel
    • Bore: 1/2 in. Hex
    • Diameter: 2.25 in.
    • Number of Rollers: 6
    • Roller Axle: Steel
    • Roller Material, Outside: Nylon
    • Width Across Middle: 1.75 in.

     

    Documents

    Layout Print(s)

    am-4418R 2.25IN 500Hex Right Mecanum V1.0.pdf

    am-4418L 2.25IN 500Hex Left Mecanum V1.0.pdf

    CAD File(s)

    am-4418R 2.25IN 500Hex Right Mecanum V1.0.STEP

    am-4418L 2.25IN 500Hex Left Mecanum V1.0.STEP

    Guide(s)

    am-4418R am-4418L 2.25 in. Mecanum HD Vectored Intake Wheel Assembly Directions.pdf

     

    MFR Part #: am-4418
    $99.00
    Availability: 2 in stock
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    2" Stealth Wheel, 1/2" Hex Bore, 35A, Green, Durometer (am-3155_green)

    #am-3155_green
    $9.00
    (72 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

    2.25 inch Compliant Wheel, 1/2 inch Hex, 50A Durometer, Blue

    #am-3949_blue
    $10.00
    (51 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, 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.

     

    Specifications

     

    • Bore: 0.375 in. Hex, 0.50 in. Hex, 5 mm Hex
    • Core Material: Polycarbonate
    • Diameter: 2.25 in.
    • Durometer: 35A (Green), 40A (Orange), 50A (Blue), 60A (Black)
    • Tread Material: TPU
    • Weight: 0.08 lbs
    • Width: 1 in.

     

    Documents

    Layout Print(s)

    am-3949 2.25IN 500Hex HD Compliant Wheel REV3.PDF

    am-3950 2.25IN 375Hex HD Compliant Wheel REV3.PDF

    am-4536 2.25in HD 5mm Hex Molded Compliant Wheel.PDF

    CAD File(s)

    am-3949 2.25IN 500Hex HD Compliant Wheel.STEP

    am-3950 2.25IN 375Hex HD Compliant Wheel.STEP

    am-4536 2IN OverMolded 5mm Hex Compliant Wheel.STEP

    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

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

    #am-2647_orange
    $12.00
    (40 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

    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.

    Aluminum Hex Shaft Stock, 1/2" width, 7075 6'

    #am-2291-6
    $89.00
    (21 In stock)

    Do you have a hard time finding some strong hex stock aluminum? We have it! This is 7075 series aluminum, which is great for use in transmission shafts.

     

    Specifications:

    • Material: 7075 Aluminum
    • Width: 1/2" hex (0.496-0.499 inches)
    • Weight: 0.27 pounds/ft
    • Length: You specify, 1 foot, 3 feet or 6 foot in length, +/- 1"