SDS Colson Wheel (Wheel with Hub)

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:

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

Don't see what you need?

#35 Half Link. Also known as #35 Offset Link. 

Specifications:

• Material: Steel
• Style: Roller Chain with interted pin
• Type: Half Link
• Size: #35
• Pitch: 0.375 inch
• Weight: 0.01 lbs

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"

Do you need an odd number of chain links? Tired of dealing with cotter pins in old school "half links"?  Love using the DarkSoul or ARC chain tool for everything? These are the links for you!

These links add one and a half links to a run of chain making for easier cleaner alternative to half links. Use a chain splicing tool or two master links to install them. No more lost matches from a failed half link!

Specifications

• Chain Size: #25, #35
• Material: Steel
• Pitch: 0.25 in., 0.375 in.
• Style: Roller Chain

With custom hubs, this offering from SDS has competition-tested performance combined with seamless integration into the MK4 and MK4i Swerve Modules.

Colson Performa Wheels have been used extensively in BattleBots and FIRST Robotics Competitions, and are widely lauded as an intelligent choice for swerve. The durable co-injection molded construction of a thermoplastic elastomer tread permanently bonded to a polyolefin core helps ensure the wheel can withstand the rigors of robot competitions while being friendlier to non-carpeted surfaces and providing a more consistent performance throughout the life of the wheel compared to roughtop tread. 

The aluminum hub is secured to the bevel gear using three screws which captures the wheel. This setup provides a simplified replacement process for heavy use during competition season. 

Included Components in am- 5173:

• 3 - Black Oxide 10-32 1 in. Long Cap Screw (Similar to am-1056)
• 1 - Hub
• 1 - Colson Wheel (am-5171)

Specifications

• Brand: SDS
• Diameter: 4 in.
• Width: 1.5 in.

#35 Connecting Link (Master Link) 

Specifications:

• Material: Steel
• Style: Roller Chain - Spring Clip
• Type: Connecting Link
• Size: #35
• Pitch: 0.375 inch
• Weight: 0.01 lbs

#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 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

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

8 different offerings of our 25 Series Plate 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 any of our 6 hole hubs and mesh with #25 roller chain.  They also work with other build systems that use a 2 in. bolt circle for mounting. The larger versions also have a mounting pattern compatible with 2x1 box tube usefull for making arms.