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    Extrusion & Structure

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    0.093 in. Thick 24 in. x 24 in. Polycarbonate Sheet

    #am-0981
    $29.00

    Polycarbonate is a terrific material to use. Bolt it to two separate components to add some rigidity or use it to cover an area to keep items out while being able to see inside.

     

    This is a single sheet of polycarbonate (PC) plastic, cut to a 24x24 in. square. This single sheet will be shipped with the protective covering on both sides of the plastic.


    Polycarbonate was invented in 1963 by Dan Fox at General Electric. GE's trade name for this plastic is LEXAN, but it also is sold under other trade names (Makrolon, Hyzod, Cyrolon). This material is NOT plexiglas or acrylic, as we don't suggest that you use that material on a mobile robot, since acrylic will easily shatter.

     

    Specifications

    • Length: 24 in. (+/- 0.25)
    • Material: Polycarbonate
    • Thickness: 0.093 in.
    • Weight: 2.3 lbs
    • Width: 24 in. (+/- 0.25)

    AM14U4 Inside Plate

    #am-3922
    $49.00

    This sheet metal part is makes up the inside rail of the AM14U4 drive chassis. This rail has different holes to accommodate different wheel sizes, types, and configurations as well as mounting locations for the Toughbox Mini, Toughbox Micro, support churros, and bearings.

     

    Specifications

    • Flange Depth: 0.750 in., 0.875 in.
    • Height: 3.060 in., 6.46
    • Length: 32 in.
    • Material: 5052 Aluminum

     

    Documents

    Layout Print(s)

    am-3922 AM14U4 Inside Plate.PDF

    CAD File(s)

    am-3922 AM14U4 Inside Plate.STEP

    1 in. Quad Gusset

    #am-4159
    $5.00

    We are pleased to offer these new gussets that are suitable for 1" based building systems. These thoughtfully designed gussets are made from 1/8" thick 6061-T6 aluminum, which is a much stronger material than other 0.09" 5052 gussets. All of these framing gussets feature a 1" linear hole pattern, with holes suitable for either #10 screws or 3/16" rivets.

     

    On all of the angle gussets, a generous radius was used on the inside corner for maximum strength. The various angle gussets, along with the quad and tee gusset are used together to create structures and sub-assemblies for your robot. Our bearing and Sport gussets are perfect building blocks to create a massive variety of mechanisms and assemblies to suit your needs.

     

    Specifications

    • Hole Pattern: Plates feature 0.20 in. Holes on a 1 in. Center to Center Spacing
    • Material: 6061-T6 Aluminum
    • Thickness: 0.125 in

     

    Documents

     

    Layout Print(s)

    am-3860 90 Gusset REV2.PDF

    am-4158 1IN Tee Gusset.PDF

    am-4159 1IN Quad Gusset.PDF

    am-4160 1IN 30deg Gusset.PDF

    am-4161 1in 45deg Gusset.PDF

    am-4162 1in 60deg Gusset.PDF

    am-4163 1in 120deg Gusset.PDF

    am-4164 1in 135deg Gusset.PDF

    am-4165 1in 150deg Gusset.PDF

    am-4166 1IN Sport Double Bearing Mount.PDF

    am-4167 1IN 57Sport Side Mount Gusset.PDF

    am-4168 1IN Bearing Side Mount Gusset.PDF

     

    CAD File(s)

    am-3860 90 Gusset REV2.STEP

    am-4158 1IN Tee Gusset.STEP

    am-4159 1IN Quad Gusset.STEP

    am-4160 1IN 30deg Gusset.STEP

    am-4161 1in 45deg Gusset.STEP

    am-4162 1in 60deg Gusset.STEP

    am-4163 1in 120deg Gusset.STEP

    am-4164 1in 135deg Gusset.STEP

    am-4165 1in 150deg Gusset.STEP

    am-4166 1IN Sport Double Bearing Mount.STEP

    am-4167 1IN 57Sport Side Mount Gusset.STEP

    am-4168 1IN Bearing Side Mount Gusset.STEP

    1 in. 30 Degree Gusset

    #am-4160
    $5.00

    We are pleased to offer these new gussets that are suitable for 1" based building systems. These thoughtfully designed gussets are made from 1/8" thick 6061-T6 aluminum, which is a much stronger material than other 0.09" 5052 gussets. All of these framing gussets feature a 1" linear hole pattern, with holes suitable for either #10 screws or 3/16" rivets.

     

    On all of the angle gussets, a generous radius was used on the inside corner for maximum strength. The various angle gussets, along with the quad and tee gusset are used together to create structures and sub-assemblies for your robot. Our bearing and Sport gussets are perfect building blocks to create a massive variety of mechanisms and assemblies to suit your needs.

     

    Specifications

    • Hole Pattern: Plates feature 0.20 in. Holes on a 1 in. Center to Center Spacing
    • Material: 6061-T6 Aluminum
    • Thickness: 0.125 in

     

    Documents

     

    Layout Print(s)

    am-3860 90 Gusset REV2.PDF

    am-4158 1IN Tee Gusset.PDF

    am-4159 1IN Quad Gusset.PDF

    am-4160 1IN 30deg Gusset.PDF

    am-4161 1in 45deg Gusset.PDF

    am-4162 1in 60deg Gusset.PDF

    am-4163 1in 120deg Gusset.PDF

    am-4164 1in 135deg Gusset.PDF

    am-4165 1in 150deg Gusset.PDF

    am-4166 1IN Sport Double Bearing Mount.PDF

    am-4167 1IN 57Sport Side Mount Gusset.PDF

    am-4168 1IN Bearing Side Mount Gusset.PDF

     

    CAD File(s)

    am-3860 90 Gusset REV2.STEP

    am-4158 1IN Tee Gusset.STEP

    am-4159 1IN Quad Gusset.STEP

    am-4160 1IN 30deg Gusset.STEP

    am-4161 1in 45deg Gusset.STEP

    am-4162 1in 60deg Gusset.STEP

    am-4163 1in 120deg Gusset.STEP

    am-4164 1in 135deg Gusset.STEP

    am-4165 1in 150deg Gusset.STEP

    am-4166 1IN Sport Double Bearing Mount.STEP

    am-4167 1IN 57Sport Side Mount Gusset.STEP

    am-4168 1IN Bearing Side Mount Gusset.STEP

    1 in. 45 Degree Gusset

    #am-4161
    $5.00

    We are pleased to offer these new gussets that are suitable for 1" based building systems. These thoughtfully designed gussets are made from 1/8" thick 6061-T6 aluminum, which is a much stronger material than other 0.09" 5052 gussets. All of these framing gussets feature a 1" linear hole pattern, with holes suitable for either #10 screws or 3/16" rivets.

     

    On all of the angle gussets, a generous radius was used on the inside corner for maximum strength. The various angle gussets, along with the quad and tee gusset are used together to create structures and sub-assemblies for your robot. Our bearing and Sport gussets are perfect building blocks to create a massive variety of mechanisms and assemblies to suit your needs.

     

    Specifications

    • Hole Pattern: Plates feature 0.20 in. Holes on a 1 in. Center to Center Spacing
    • Material: 6061-T6 Aluminum
    • Thickness: 0.125 in

     

    Documents

     

    Layout Print(s)

    am-3860 90 Gusset REV2.PDF

    am-4158 1IN Tee Gusset.PDF

    am-4159 1IN Quad Gusset.PDF

    am-4160 1IN 30deg Gusset.PDF

    am-4161 1in 45deg Gusset.PDF

    am-4162 1in 60deg Gusset.PDF

    am-4163 1in 120deg Gusset.PDF

    am-4164 1in 135deg Gusset.PDF

    am-4165 1in 150deg Gusset.PDF

    am-4166 1IN Sport Double Bearing Mount.PDF

    am-4167 1IN 57Sport Side Mount Gusset.PDF

    am-4168 1IN Bearing Side Mount Gusset.PDF

     

    CAD File(s)

    am-3860 90 Gusset REV2.STEP

    am-4158 1IN Tee Gusset.STEP

    am-4159 1IN Quad Gusset.STEP

    am-4160 1IN 30deg Gusset.STEP

    am-4161 1in 45deg Gusset.STEP

    am-4162 1in 60deg Gusset.STEP

    am-4163 1in 120deg Gusset.STEP

    am-4164 1in 135deg Gusset.STEP

    am-4165 1in 150deg Gusset.STEP

    am-4166 1IN Sport Double Bearing Mount.STEP

    am-4167 1IN 57Sport Side Mount Gusset.STEP

    am-4168 1IN Bearing Side Mount Gusset.STEP

    1 in. 60 Degree Gusset

    #am-4162
    $5.00

    We are pleased to offer these new gussets that are suitable for 1" based building systems. These thoughtfully designed gussets are made from 1/8" thick 6061-T6 aluminum, which is a much stronger material than other 0.09" 5052 gussets. All of these framing gussets feature a 1" linear hole pattern, with holes suitable for either #10 screws or 3/16" rivets.

     

    On all of the angle gussets, a generous radius was used on the inside corner for maximum strength. The various angle gussets, along with the quad and tee gusset are used together to create structures and sub-assemblies for your robot. Our bearing and Sport gussets are perfect building blocks to create a massive variety of mechanisms and assemblies to suit your needs.

     

    Specifications

    • Hole Pattern: Plates feature 0.20 in. Holes on a 1 in. Center to Center Spacing
    • Material: 6061-T6 Aluminum
    • Thickness: 0.125 in

     

    Documents

     

    Layout Print(s)

    am-3860 90 Gusset REV2.PDF

    am-4158 1IN Tee Gusset.PDF

    am-4159 1IN Quad Gusset.PDF

    am-4160 1IN 30deg Gusset.PDF

    am-4161 1in 45deg Gusset.PDF

    am-4162 1in 60deg Gusset.PDF

    am-4163 1in 120deg Gusset.PDF

    am-4164 1in 135deg Gusset.PDF

    am-4165 1in 150deg Gusset.PDF

    am-4166 1IN Sport Double Bearing Mount.PDF

    am-4167 1IN 57Sport Side Mount Gusset.PDF

    am-4168 1IN Bearing Side Mount Gusset.PDF

     

    CAD File(s)

    am-3860 90 Gusset REV2.STEP

    am-4158 1IN Tee Gusset.STEP

    am-4159 1IN Quad Gusset.STEP

    am-4160 1IN 30deg Gusset.STEP

    am-4161 1in 45deg Gusset.STEP

    am-4162 1in 60deg Gusset.STEP

    am-4163 1in 120deg Gusset.STEP

    am-4164 1in 135deg Gusset.STEP

    am-4165 1in 150deg Gusset.STEP

    am-4166 1IN Sport Double Bearing Mount.STEP

    am-4167 1IN 57Sport Side Mount Gusset.STEP

    am-4168 1IN Bearing Side Mount Gusset.STEP

    1 in. 120 Degree Gusset

    #am-4163
    $5.00

    We are pleased to offer these new gussets that are suitable for 1" based building systems. These thoughtfully designed gussets are made from 1/8" thick 6061-T6 aluminum, which is a much stronger material than other 0.09" 5052 gussets. All of these framing gussets feature a 1" linear hole pattern, with holes suitable for either #10 screws or 3/16" rivets.

     

    On all of the angle gussets, a generous radius was used on the inside corner for maximum strength. The various angle gussets, along with the quad and tee gusset are used together to create structures and sub-assemblies for your robot. Our bearing and Sport gussets are perfect building blocks to create a massive variety of mechanisms and assemblies to suit your needs.

     

    Specifications

    • Hole Pattern: Plates feature 0.20 in. Holes on a 1 in. Center to Center Spacing
    • Material: 6061-T6 Aluminum
    • Thickness: 0.125 in

     

     

    1 in. 150 Degree Gusset

    #am-4165
    $5.00

    We are pleased to offer these new gussets that are suitable for 1" based building systems. These thoughtfully designed gussets are made from 1/8" thick 6061-T6 aluminum, which is a much stronger material than other 0.09" 5052 gussets. All of these framing gussets feature a 1" linear hole pattern, with holes suitable for either #10 screws or 3/16" rivets.

     

    On all of the angle gussets, a generous radius was used on the inside corner for maximum strength. The various angle gussets, along with the quad and tee gusset are used together to create structures and sub-assemblies for your robot. Our bearing and Sport gussets are perfect building blocks to create a massive variety of mechanisms and assemblies to suit your needs.

     

    Specifications

    • Hole Pattern: Plates feature 0.20 in. Holes on a 1 in. Center to Center Spacing
    • Material: 6061-T6 Aluminum
    • Thickness: 0.125 in

     

    Documents

     

    Layout Print(s)

    am-3860 90 Gusset REV2.PDF

    am-4158 1IN Tee Gusset.PDF

    am-4159 1IN Quad Gusset.PDF

    am-4160 1IN 30deg Gusset.PDF

    am-4161 1in 45deg Gusset.PDF

    am-4162 1in 60deg Gusset.PDF

    am-4163 1in 120deg Gusset.PDF

    am-4164 1in 135deg Gusset.PDF

    am-4165 1in 150deg Gusset.PDF

    am-4166 1IN Sport Double Bearing Mount.PDF

    am-4167 1IN 57Sport Side Mount Gusset.PDF

    am-4168 1IN Bearing Side Mount Gusset.PDF

     

    CAD File(s)

    am-3860 90 Gusset REV2.STEP

    am-4158 1IN Tee Gusset.STEP

    am-4159 1IN Quad Gusset.STEP

    am-4160 1IN 30deg Gusset.STEP

    am-4161 1in 45deg Gusset.STEP

    am-4162 1in 60deg Gusset.STEP

    am-4163 1in 120deg Gusset.STEP

    am-4164 1in 135deg Gusset.STEP

    am-4165 1in 150deg Gusset.STEP

    am-4166 1IN Sport Double Bearing Mount.STEP

    am-4167 1IN 57Sport Side Mount Gusset.STEP

    am-4168 1IN Bearing Side Mount Gusset.STEP

    1 in. 135 Degree Gusset

    #am-4164
    $5.00

    We are pleased to offer these new gussets that are suitable for 1" based building systems. These thoughtfully designed gussets are made from 1/8" thick 6061-T6 aluminum, which is a much stronger material than other 0.09" 5052 gussets. All of these framing gussets feature a 1" linear hole pattern, with holes suitable for either #10 screws or 3/16" rivets.

     

    On all of the angle gussets, a generous radius was used on the inside corner for maximum strength. The various angle gussets, along with the quad and tee gusset are used together to create structures and sub-assemblies for your robot. Our bearing and Sport gussets are perfect building blocks to create a massive variety of mechanisms and assemblies to suit your needs.

     

    Specifications

    • Hole Pattern: Plates feature 0.20 in. Holes on a 1 in. Center to Center Spacing
    • Material: 6061-T6 Aluminum
    • Thickness: 0.125 in

     

    Documents

     

    Layout Print(s)

    am-3860 90 Gusset REV2.PDF

    am-4158 1IN Tee Gusset.PDF

    am-4159 1IN Quad Gusset.PDF

    am-4160 1IN 30deg Gusset.PDF

    am-4161 1in 45deg Gusset.PDF

    am-4162 1in 60deg Gusset.PDF

    am-4163 1in 120deg Gusset.PDF

    am-4164 1in 135deg Gusset.PDF

    am-4165 1in 150deg Gusset.PDF

    am-4166 1IN Sport Double Bearing Mount.PDF

    am-4167 1IN 57Sport Side Mount Gusset.PDF

    am-4168 1IN Bearing Side Mount Gusset.PDF

     

    CAD File(s)

    am-3860 90 Gusset REV2.STEP

    am-4158 1IN Tee Gusset.STEP

    am-4159 1IN Quad Gusset.STEP

    am-4160 1IN 30deg Gusset.STEP

    am-4161 1in 45deg Gusset.STEP

    am-4162 1in 60deg Gusset.STEP

    am-4163 1in 120deg Gusset.STEP

    am-4164 1in 135deg Gusset.STEP

    am-4165 1in 150deg Gusset.STEP

    am-4166 1IN Sport Double Bearing Mount.STEP

    am-4167 1IN 57Sport Side Mount Gusset.STEP

    am-4168 1IN Bearing Side Mount Gusset.STEP

    1 in. Bearing Side Mount Gusset

    #am-4168
    $5.00

    We are pleased to offer these new gussets that are suitable for 1" based building systems. These thoughtfully designed gussets are made from 1/8" thick 6061-T6 aluminum, which is a much stronger material than other 0.09" 5052 gussets. All of these framing gussets feature a 1" linear hole pattern, with holes suitable for either #10 screws or 3/16" rivets.

     

    On all of the angle gussets, a generous radius was used on the inside corner for maximum strength. The various angle gussets, along with the quad and tee gusset are used together to create structures and sub-assemblies for your robot. Our bearing and Sport gussets are perfect building blocks to create a massive variety of mechanisms and assemblies to suit your needs.

     

    Specifications

    • Hole Pattern: Plates feature 0.20 in. Holes on a 1 in. Center to Center Spacing
    • Material: 6061-T6 Aluminum
    • Thickness: 0.125 in

     

    Documents

     

    Layout Print(s)

    am-3860 90 Gusset REV2.PDF

    am-4158 1IN Tee Gusset.PDF

    am-4159 1IN Quad Gusset.PDF

    am-4160 1IN 30deg Gusset.PDF

    am-4161 1in 45deg Gusset.PDF

    am-4162 1in 60deg Gusset.PDF

    am-4163 1in 120deg Gusset.PDF

    am-4164 1in 135deg Gusset.PDF

    am-4165 1in 150deg Gusset.PDF

    am-4166 1IN Sport Double Bearing Mount.PDF

    am-4167 1IN 57Sport Side Mount Gusset.PDF

    am-4168 1IN Bearing Side Mount Gusset.PDF

     

    CAD File(s)

    am-3860 90 Gusset REV2.STEP

    am-4158 1IN Tee Gusset.STEP

    am-4159 1IN Quad Gusset.STEP

    am-4160 1IN 30deg Gusset.STEP

    am-4161 1in 45deg Gusset.STEP

    am-4162 1in 60deg Gusset.STEP

    am-4163 1in 120deg Gusset.STEP

    am-4164 1in 135deg Gusset.STEP

    am-4165 1in 150deg Gusset.STEP

    am-4166 1IN Sport Double Bearing Mount.STEP

    am-4167 1IN 57Sport Side Mount Gusset.STEP

    am-4168 1IN Bearing Side Mount Gusset.STEP

    1 in. Sport Double Bearing Mount

    #am-4166
    $5.00

    We are pleased to offer these new gussets that are suitable for 1" based building systems. These thoughtfully designed gussets are made from 1/8" thick 6061-T6 aluminum, which is a much stronger material than other 0.09" 5052 gussets. All of these framing gussets feature a 1" linear hole pattern, with holes suitable for either #10 screws or 3/16" rivets.

     

    On all of the angle gussets, a generous radius was used on the inside corner for maximum strength. The various angle gussets, along with the quad and tee gusset are used together to create structures and sub-assemblies for your robot. Our bearing and Sport gussets are perfect building blocks to create a massive variety of mechanisms and assemblies to suit your needs.

     

    Specifications

     

    • Hole Pattern: Plates feature 0.20 in. Holes on a 1 in. Center to Center Spacing
    • Material: 6061-T6 Aluminum
    • Thickness: 0.125 in

     

    Documents

     

    Layout Print(s)

    am-3860 90 Gusset REV2.PDF

    am-4158 1IN Tee Gusset.PDF

    am-4159 1IN Quad Gusset.PDF

    am-4160 1IN 30deg Gusset.PDF

    am-4161 1in 45deg Gusset.PDF

    am-4162 1in 60deg Gusset.PDF

    am-4163 1in 120deg Gusset.PDF

    am-4164 1in 135deg Gusset.PDF

    am-4165 1in 150deg Gusset.PDF

    am-4166 1IN Sport Double Bearing Mount.PDF

    am-4167 1IN 57Sport Side Mount Gusset.PDF

    am-4168 1IN Bearing Side Mount Gusset.PDF

     

    CAD File(s)

    am-3860 90 Gusset REV2.STEP

    am-4158 1IN Tee Gusset.STEP

    am-4159 1IN Quad Gusset.STEP

    am-4160 1IN 30deg Gusset.STEP

    am-4161 1in 45deg Gusset.STEP

    am-4162 1in 60deg Gusset.STEP

    am-4163 1in 120deg Gusset.STEP

    am-4164 1in 135deg Gusset.STEP

    am-4165 1in 150deg Gusset.STEP

    am-4166 1IN Sport Double Bearing Mount.STEP

    am-4167 1IN 57Sport Side Mount Gusset.STEP

    am-4168 1IN Bearing Side Mount Gusset.STEP

    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

    Basic Gusset Starter Pack

    #am-4191
    $199.00

    This collection of gussets is a great starting point for creating upper structure sub assemblies for your FRC robot. This collection of gussets is great when paired with common aluminum box extrusions to create simple frames or mechanisms for your robot. We've selected the most commonly used gussets in FRC and have tailored this collection of gussets, along with a good amount of rivets, to help your robot take shape.

    Bundle Includes:

     

    • 10 - 1 in. 90 Degree Gusset (am-3860)
    • 4 - 1 in. 90 Degree Gusset (am-4158)
    • 10 - 1 in. Quad Gusset (am-4159)
    • 4 - 1 in. 45 Degree Gusset (am-4161)
    • 200 - 3/16 Steel Rivet (am-1226)
    • 10 - AM14U Family 2x3 Hole Bracket (am-2954)

     

    Documents

    Don't see what you need?

    See_all_our_guides,_drawings_and_CAD_files_here

    Mega Gusset Starter Pack

    #am-4193
    $319.00

    This is our biggest collection of our 1 in. pitch gussets. This collection of gussets when paired with common aluminum box extrusions should be everything you need to frame out the majority of your FRC robot. We've selected the most commonly used gussets in FRC and have tailored this collection of gussets, along with a good amount of rivets, to help your robot take shape. This bundle offers a significant discount versus purchasing every gusset individually.

     

    Bundle Includes:

     

    • 16 - 1 in. 90 Degree Gusset (am-3860)
    • 4 - 1 in. Tee Gusset (am-4158)
    • 4 - 1 in Quad Gusset (am-4159)
    • 4 - 1 in. 30 Degree Gusset (am-4160)
    • 4 - 1 in. 45 Degree Gusset (am-4161)
    • 4 - 1 in. 60 Degree Gusset (am-4162)
    • 4 - 1 in. 120 Degree Gusset (am-4163)
    • 4 - 1 in 135 Degree Gusset (am-4164)
    • 4 - 1 in 150 Degree Gusset (am-4165)
    • 500 - 3/16 Steel Rivet (am-1226)
    • 10 - AM14U Family 2x3 Hole Bracket (am-2954)

     

    AM14U4 Cross Plate XL

    #am-3975
    $60.00
    (In stock)


    The cross plate is used to strengthen AM14U family frames to accommodate for an extra large opening in the front or back of the chassis frame. This cross bar can be cut down on either end and features a hole sized for a bearing in the center of the plate for use with an H-Drive or other custom additions.

     

    Specifications

    • Height: 2.935"
    • Hole Size: 0.210"
    • Length: 31.0"
    • Lower Flange Length: 0.75"
    • Material: 5052 Aluminum
    • Overall Depth: 2.5"
    • Thickness: 0.125"
    • Upper Flange Length: 1.625"

    AM14U5 Outside Plate

    #am-3921a
    $40.00
    (0 In stock)

    This sheet metal part makes up the outer rail of the AM14U5 drive chassis. This rail has different holes to accommodate different wheel sizes, types, and configurations as well as locations for support churros and bearings. This plate contains additional holes as compared to the AM14U4 Outside Plate to accommodate even more features and components.