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    6 in. SR Mecanum Wheels (set of 4)

    We are proud to offer AndyMark's latest and greatest 6 in. diameter Mecanum wheel. This wheel's features are a culmination of our hard work in developing the Mecanum wheel since we introduced an affordable wheel to the market in 2006. This version was previously updated in the fall of 2017, and is an improvement on our previous HD (Heavy Duty) version. It has the same heavy duty features, but with an added smoothness while rolling. We minimized the gaps between the rollers, enabling this wheel to be our "smooth rolling" (SR) Mecanum Wheel.

     

    A wheel set is comprised of two left (am-3479La) and two right (am-3479Ra) wheels. Should you need a replacement wheel, a single left or right can also be acquired. These wheels have a weight capacity of 200 pounds per wheel.

     

    # Pièce: am-3479a
    $599.00
    Disponibilité: Rupture de stock - en rupture de stock et sera expédié une fois en stock.

    Roller and Axle Design:
    The gray urethane rubber roller (am-3698) has a durometer rating of 80a. The roller has a polycarbonate core, and 2 high load bushings. The bushings ride on brass tubes, sandwiched between the plates with a #10-32 machine screw.

    Wheel Structure:
    15 rubber rollers are sandwiched between 2 steel plates. The steel plates ar bolted to two interior cone-shaped aluminum pieces, via three aluminum standoffs, which form the interior hub of the wheel. The two interior pieces are sandwiched together at the bore with a thickness of 0.25 inch. These wheels can be purchased in a set of 4, or individually. They are sold without hubs, sprockets, or bearings.

    Driving with Axle and Hub Overview:
    If driven by a round shaft, these parts are needed for each wheel

    • A hub fitting the size of the drive shaft. For 1/2 in. dia. shafts, use a 500 Key Hub (am-0077a) for each wheel.
    • #10-32 x 5/8 in. long screws (6), and #10-32 nylock nuts (6) fasten the hub to the wheel.
    • 1/8 x 1/8 x 3/4 steel machine key (am-1043), one per wheel

    Driving with a Sprocket:
    If driven by a sprocket, these parts are needed for each wheel.

    • Flanged ball bearings with 1.125 in. od: either 3/8 in. inside diameter (am-0573), or 1/2 in. i.d. (am-0030)
    • Two 550 sprocket spacers (am-0651) are used to space the sprocket away from the wheel, for chain clearance.
    • A sprocket (type A) with a bolt hole circle of 1.875 in. diameter mounts to the wheels' interior bolt pattern.
    • #10-32 x 1.75 in. long screws (6), and #10-32 nylock nuts (6) fasten the sprocket and spacers to the wheel.
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    Roller and Axle Design:
    The gray urethane rubber roller (am-3698) has a durometer rating of 80a. The roller has a polycarbonate core, and 2 high load bushings. The bushings ride on brass tubes, sandwiched between the plates with a #10-32 machine screw.

    Wheel Structure:
    15 rubber rollers are sandwiched between 2 steel plates. The steel plates ar bolted to two interior cone-shaped aluminum pieces, via three aluminum standoffs, which form the interior hub of the wheel. The two interior pieces are sandwiched together at the bore with a thickness of 0.25 inch. These wheels can be purchased in a set of 4, or individually. They are sold without hubs, sprockets, or bearings.

    Driving with Axle and Hub Overview:
    If driven by a round shaft, these parts are needed for each wheel

    • A hub fitting the size of the drive shaft. For 1/2 in. dia. shafts, use a 500 Key Hub (am-0077a) for each wheel.
    • #10-32 x 5/8 in. long screws (6), and #10-32 nylock nuts (6) fasten the hub to the wheel.
    • 1/8 x 1/8 x 3/4 steel machine key (am-1043), one per wheel

    Driving with a Sprocket:
    If driven by a sprocket, these parts are needed for each wheel.

    • Flanged ball bearings with 1.125 in. od: either 3/8 in. inside diameter (am-0573), or 1/2 in. i.d. (am-0030)
    • Two 550 sprocket spacers (am-0651) are used to space the sprocket away from the wheel, for chain clearance.
    • A sprocket (type A) with a bolt hole circle of 1.875 in. diameter mounts to the wheels' interior bolt pattern.
    • #10-32 x 1.75 in. long screws (6), and #10-32 nylock nuts (6) fasten the sprocket and spacers to the wheel.
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    10-32 Nylock Nut

    #am-1042
    $0.08
    (En stock)

    This item can only be purchased in multiples of 25

     

    Specifications: 

    • Material: Steel
    • Coating: Zinc Plated
    • Thread: #10-32
    • Thickness: 0.249"
    • Thread: Fine
    • Thread Size: 32
    • Type: Nylon Insert Lock Nut
    • Wrench Size: 3/8"

    10-32 x 0.75 in. Socket Head Cap Screw - Min 25

    #am-1047
    $0.29
    (En stock)

    Specifications:

     

    • Material: Steel
    • Coating: Zinc Plated
    • Thread: 10-32
    • Length: 3/4"
    • Head: Socket Head Cap Screw

    2" Compliant Wheel, 1/2 inch Hex, 60 Durometer Black

    #am-3462_black
    $8.00

    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

    1/2" Churro Tube 24.25" +/- 0.125" (am-2974)

    #am-2974
    $12.00
    (0 En stock)

    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

    #10-24x3/4 Thread Forming Screw Minimum Qty 10

    #am-1123
    $0.31
    (En stock)

    This is a Trilobe, thread forming, or thread rolling screw, ideal for applications where the screw is being threaded into plastic or metal. 

    A flat washer is part of the 5/16 hex head, providing more surface area contact than a regular hex head. The increased bearing area decreases the likeliness of crushing mating surfaces. Trilobe, or Thread Rolling, screws have a blunt tapered point that requires a pre-drilled or punched hole; eliminates chips and permits replacement with standard screw. Zinc plating froms a zinc carbonate film that greatly retards the corrosion rate in a normal atmosphere, which is similar to the aluminum oxide film that forms on aluminum that accounts for its low corrosion rate. 

    Product Overview:

    • Quantity: 50
    • Diameter: #10
    • Finish: Zinc
    • Head: 5/16 Hex with integral washer
    • Thread Length: 3/4"
    • Material: Steel
    • Thread Size: 10-24
    • Thread Type: Trilobe, Thread Rolling
    • Weight per Screw: 0.007 lbs
    • Package Weight: 0.34 lbs

    2.25 inch Compliant Wheel, 1/2 inch Hex, 35A Durometer, Green

    #am-3949_green
    $10.00
    (26 En stock)

    These 2.25" diameter HD (heavy-duty) solid-core Compliant Wheels are intended for manipulating objects where you need a little 'give' in your intake system. These wheels deform out of the way to allow rigid objects to be manipulated easily. This makes for high-performance intakes and internal conveyors. These wheels do not require the use of expensive hubs to be driven, thanks to their integrated high strength polycarbonate hubs - which are made from the same mold that creates our Hex Molded Spacers.