Close
Main Categories
    Filters
    Preferences
    Search

    25 Series Symmetrical Hub Sprockets: 26 Tooth, 1/2 Hex

    9 different offerings of our 25 Series Hub Sprockets. These are perfect for meshing with roller chain and finally getting that-thing-that-you-need-to-spin moving!

     

    These aluminum sprockets work perfectly with 1/2 in. hex shaft and mesh with #25 roller chain. They are symmetrical and have the same sized hub on both sides so there's no wrong way to install them. The hub is also sized to ride on only the inner race of a bearing for smooth motion without binding or rubbing.

    MFR Part #: am-4779
    $19.00
    20 in stock
    Write your own review
    • Product can be reviewed only after purchasing it
    • Only registered users can write reviews
    *
    *
    • Bad
    • Excellent
    Customers who bought this item also bought

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

    #am-2986
    $9.00 $10.42
    ( 243 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

    #25 Connecting Link for Roller Chain

    #am-0371
    $2.00
    ( 86 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

    #25 Half Link for Roller Chain

    #am-0682
    $3.08 $3.47
    (In stock)

    #25 Half Link. Also known as #25 Offset Link. 

    Specifications:

    • Material: Steel
    • Style: Roller Chain with interted pin
    • Type: Half Link
    • Size: #25
    • Pitch: 0.25 inch
    • Weight: 0.01 lbs

    25 Series Symmetrical Hub Sprockets 500Hex, 22 Tooth

    #am-4777
    $18.00
    ( 8 In stock)

    The 25 Series Plate Sprockets: They roll! They turn! They spin! Everything you could possibly want from a plate sprocket.

     

    These Aluminum sprockets work perfectly with hex shaft and mesh with #25 roller chain.

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

    #am-0805
    $5.50
    ( 83 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" Compliant Wheel, 1/2" Hex Bore, 35A Durometer, Green

    #am-3480_green
    $14.50
    ( 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, 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

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

      #am-4626
      $19.00

      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.

        Aluminum 1/2 Inch Hex Bore Split Clamping Collar - QTY 5

        #TTB-0002
        $28.99
        ( 33 In stock)

        Tired of hex clamp collars that cost an arm and a leg? Tired of stripping out the set screw on your clamp collar? Need to add a collar in an assembly and don't want to remove everything from your hex shaft?

        Me too! I've ran into all of the above scenarios multiple times building multiple robots. These collars are the holy grail -

        • split so they can easily be added or removed
        • lightweight 6061 aluminum
        • .5 oz (.031 lbs) for one hex collar
        • uses two 8-32 socket head cap screws that require a 9/64" allen wrench
        • $4.00 per collar, sold in 5 packs
        • anodized black for awesomeness

         

        General Dimensions: