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    57 Sport Gearbox 20:1 SD Ratio

    The 57 Sport is a competition tested high performance line of planetary gearboxes from AndyMark and BaneBots. The 57 Sport features numerous improvements over previous planetary gearboxes used on FIRST Robotics Competition robots. 

    # Pièce: am-4005_020
    $119.93
    Disponibilité: En stock

    The cold formed steel gears inside this gearbox are a 0.7 Module tooth profile which is 40% larger than the vast majority of planetary gearbox gears previously used on competition robots. The gears are larger, but the housing's size has been optimized to reduce any unnecessary volume. This means you get more reliability without sacrificing precious space. This housing is also one solid piece of aluminium, ensuring that there is no possibility for misalignment of the stages during assembly or during the rigors of match play. 

    Three stage, and now optionally two stage, versions of these gearboxes also feature an "HD" stage, with gears approximately double the face width of the other stages as well as a strengthened carrier plate. These larger gears on the output stage ensure that it will handle heavy or cantilevered loads without worry. The carrier plates are made of hardened 4140 steel and interface to the output shaft with a robust hex bore. New for 2019 we are opening up the use of every available gear ratio with every available motor input meaning there are some combinations that could theoretically exceed the gearboxes design characteristics. As such the blanket warranty we offered on these gearboxes in the past will be discontinued for future purchases. Rest assured that AndyMark still stands behind our product 100% and if you feel that there is a problem with your gearbox or any of our products please contact us and we will make it right. To help you decide which gearboxes to use for your application please reference the below table which includes the maximum torque that the gearbox is designed to take before it will fail.

    A free packet of red tacky grease (am-2768) is included with every gearbox purchased. This grease must be used to coat every internal surface of the gearbox before use. 

    The 57 Sport includes mounting hardware for any 500 or 700 series motor including the AndyMark RedLine, the VexPro 775pro, the AndyMark RS775-5, the BaneBots RS775, the BaneBots RS550, and the AndyMark NeveRest. To install one of these motors, first remove any installed pinion from the motor and press on the included pinion gear using an arbor press or bench vice. This press fit ensures a solid mechanical connection between the pinion gear and the motor. This pinion assembly is not susceptible to vibration and never needs to be checked once installed. All ratios of Blue Sport Gearboxes use a 4:1 input stage, with the same tooth count pinion, so motors and gearboxes can be switched out with ease.

     

    Part Number Ratio Weight Length Stall Torque* Rated Torque Free Speed*
    am-4005_004 4:1 SD 0.76 lb 2.62 in. 1.8 ft-lbs 120 ft-lbs 4910 rpm
    am-4005_012 12:1 SD 0.97 lb 3.42 in. 5.5 ft-lbs 135 ft-lbs 1630 rpm
    am-4006_012 12:1 HD 1.06 lb 3.67 in. 5.5 ft-lbs 170 ft-lbs 1630 rpm
    am-4005_016 16:1 SD 0.98 lb 3.42 in. 7.4 ft-lbs 120 ft-lbs 1220 rpm
    am-4006_016 16:1 HD 1.07 lb 3.67 in. 7.4 ft-lbs 160 ft-lbs 1220 rpm
    am-4005_020 20:1 SD 0.98 lb 3.42 in. 9.2 ft-lbs 110 ft-lbs 980 rpm
    am-4006_020 20:1 HD 1.08 lb 3.67 in. 9.2 ft-lbs 140 ft-lbs 980 rpm
    am-4006_036 36:1 HD 1.27 lb 4.17 in. 16.6 ft-lbs 170 ft-lbs 540 rpm
    am-4006_048 48:1 HD 1.30 lb 4.17 in. 22.2 ft-lbs 170 ft-lbs 400 rpm
    am-4006_064 64:1 HD 1.28 lb 4.17 in. 29.6 ft-lbs 160 ft-lbs 300 rpm
    am-4006_080 80:1 HD 1.30 lb 4.17 in. 37.0 ft-lbs 140 ft-lbs 240 rpm
    am-4006_100 100:1 HD 1.30 lb 4.17 in. 46.2 ft-lbs 140 ft-lbs 190 rpm

    Common Physical Specifications:

    Mounting Features:
    • Four 10-32 0.25 in. deep tapped holes on a 1/2 in. by 1 in. or 1 in. square grid, on two oppisite faces
    Output Shaft Geometry:
    • 0.5 in. Hex Profile
    • 1.0 in. Length

    *Theoretical maximum values when paired with an AndyMark 775 RedLine Motor (am-3775)
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    The cold formed steel gears inside this gearbox are a 0.7 Module tooth profile which is 40% larger than the vast majority of planetary gearbox gears previously used on competition robots. The gears are larger, but the housing's size has been optimized to reduce any unnecessary volume. This means you get more reliability without sacrificing precious space. This housing is also one solid piece of aluminium, ensuring that there is no possibility for misalignment of the stages during assembly or during the rigors of match play. 

    Three stage, and now optionally two stage, versions of these gearboxes also feature an "HD" stage, with gears approximately double the face width of the other stages as well as a strengthened carrier plate. These larger gears on the output stage ensure that it will handle heavy or cantilevered loads without worry. The carrier plates are made of hardened 4140 steel and interface to the output shaft with a robust hex bore. New for 2019 we are opening up the use of every available gear ratio with every available motor input meaning there are some combinations that could theoretically exceed the gearboxes design characteristics. As such the blanket warranty we offered on these gearboxes in the past will be discontinued for future purchases. Rest assured that AndyMark still stands behind our product 100% and if you feel that there is a problem with your gearbox or any of our products please contact us and we will make it right. To help you decide which gearboxes to use for your application please reference the below table which includes the maximum torque that the gearbox is designed to take before it will fail.

    A free packet of red tacky grease (am-2768) is included with every gearbox purchased. This grease must be used to coat every internal surface of the gearbox before use. 

    The 57 Sport includes mounting hardware for any 500 or 700 series motor including the AndyMark RedLine, the VexPro 775pro, the AndyMark RS775-5, the BaneBots RS775, the BaneBots RS550, and the AndyMark NeveRest. To install one of these motors, first remove any installed pinion from the motor and press on the included pinion gear using an arbor press or bench vice. This press fit ensures a solid mechanical connection between the pinion gear and the motor. This pinion assembly is not susceptible to vibration and never needs to be checked once installed. All ratios of Blue Sport Gearboxes use a 4:1 input stage, with the same tooth count pinion, so motors and gearboxes can be switched out with ease.

     

    Part Number Ratio Weight Length Stall Torque* Rated Torque Free Speed*
    am-4005_004 4:1 SD 0.76 lb 2.62 in. 1.8 ft-lbs 120 ft-lbs 4910 rpm
    am-4005_012 12:1 SD 0.97 lb 3.42 in. 5.5 ft-lbs 135 ft-lbs 1630 rpm
    am-4006_012 12:1 HD 1.06 lb 3.67 in. 5.5 ft-lbs 170 ft-lbs 1630 rpm
    am-4005_016 16:1 SD 0.98 lb 3.42 in. 7.4 ft-lbs 120 ft-lbs 1220 rpm
    am-4006_016 16:1 HD 1.07 lb 3.67 in. 7.4 ft-lbs 160 ft-lbs 1220 rpm
    am-4005_020 20:1 SD 0.98 lb 3.42 in. 9.2 ft-lbs 110 ft-lbs 980 rpm
    am-4006_020 20:1 HD 1.08 lb 3.67 in. 9.2 ft-lbs 140 ft-lbs 980 rpm
    am-4006_036 36:1 HD 1.27 lb 4.17 in. 16.6 ft-lbs 170 ft-lbs 540 rpm
    am-4006_048 48:1 HD 1.30 lb 4.17 in. 22.2 ft-lbs 170 ft-lbs 400 rpm
    am-4006_064 64:1 HD 1.28 lb 4.17 in. 29.6 ft-lbs 160 ft-lbs 300 rpm
    am-4006_080 80:1 HD 1.30 lb 4.17 in. 37.0 ft-lbs 140 ft-lbs 240 rpm
    am-4006_100 100:1 HD 1.30 lb 4.17 in. 46.2 ft-lbs 140 ft-lbs 190 rpm

    Common Physical Specifications:

    Mounting Features:
    • Four 10-32 0.25 in. deep tapped holes on a 1/2 in. by 1 in. or 1 in. square grid, on two oppisite faces
    Output Shaft Geometry:
    • 0.5 in. Hex Profile
    • 1.0 in. Length

    *Theoretical maximum values when paired with an AndyMark 775 RedLine Motor (am-3775)
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    Bearing, 1/2 inch Hex Bore, Flanged, (FR8ZZ-HexHD)

    #am-2986
    $8.00
    (87 En 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

    Bearing and Motor Mount Bracket

    #am-4244
    $14.00

    This simple bracket handles so many of your mounting needs! Mount motors or gearboxes anywhere and make axle supports with bearings - it's a do-it-all, put-it-anywhere bearing and motor mount bracket.

     

    Any motor or gearbox with a 2-inch diameter bolt circle can be mounted in this bracket. The center hole is sized to hold a standard 1.125 inch outside diameter bearing.

     

    Examples of motors with a 2 in. diameter bolt circle:

     

    • 2.5 in. CIM Motor
    • NEO Brushless Motor

     

    Examples of gearboxes with a 2 in. diameter bolt circle

     

    • PG Series Gearboxes
    • 57 Sport Gearbox
    • CIM Sport Gearbox
    • Falcon Sport Gearbox
    • DeCIMate Gearbox

     

    Specifications

     

    • Depth: 1 in.
    • Height: 2.679 in.
    • Length: 3.5 in.
    • Material: 5052 Aluminum
    • Thickness: 0.13 in.
    • Weight: 0.104 lbs

     

    Documents

     

    Layout Print(s)

    am-4244 1IN Pitch Bent Motor and Bearing Bracket REV2.PDF

     

    CAD File(s)

    am-4244 1IN Bent Bearing Side Mount Gusset.STEP

    1.125"Bearing Plate (am-3722)

    #am-3722
    $9.95
    (25 En stock)

    This bearing plate is a great way to mount 1.125 in. OD (FR8) into thin or weak material that otherwise could not tolerate or support a press-fit.

     

    Specifications:

    • Material: 5052 Aluminum
    • Bore: Press fit for FR8 bearing
    • Thickness: 0.125 in.
    • Bolt Pattern: 4x clearance for #10-32 on 2.00" circle
    • Length: 1.875 in.
    • Width: 1.875 in.
    • Weight: 0.0275 in.

    1/2" Churro, Blue 3 FT /- 0.125" (am-3101-3_Blue)

    #AM-3101-3_BLUE
    $25.00
    (6 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

    57 Sport Gearbox 4:1 SD Ratio

    #am-4005_004
    $105.00
    (4 En stock)

    The 57 Sport is a competition tested high performance line of planetary gearboxes from AndyMark and BaneBots. The 57 Sport features numerous improvements over previous planetary gearboxes used on FIRST Robotics Competition robots. 

    0.50 in. Hex and Keyed Shaft Coupling

    #AM-1560
    $25.00
    (15 En stock)

    Whether you have shafts that are too short or shafts of different types, this coupling will solve every component connection issue you've had! Need to combine multiple hex shafts, multiple 1/2-inch keyed shafts, or convert between hex and keyed? This coupling solves all at a better price than anyone else can offer!

    Shaft Compatability

    This coupling has geometry to capture 0.50-inch hex shafts with an inside hex of 0.51 to 0.52 inches as well as 0.5 inch keyed shafts with a 1/8th inch keyway with a keyway width of 0.128 inches to 0.131 inches.