Roller & Shooter Systems

Solid Roller Wheels (Product Page)

Use solid roller wheels to launch and accelerate game pieces! These wheels are made of urethane rubber for reliable and consistent performance and have a hex hub built-in, eliminating the need for a custom pressed hub in similar wheels.

• 45A / 60A durometers

• 1.5" wheel widths

Straight Stretch Core Flex Wheels (Product Page)

Made from a custom, high-strength silicone rubber compound, these wheels offer superior performance compared to other flexible or compliant wheels commonly used in FRC and FTC robots. They come in four diameters, each available in three durometers: Soft (30A), Medium (45A), Hard (60A). The option of different durometers allows you to customize the traction and compliance of your mechanism for optimal performance.

The 1-5/8" and 2” diameter wheels have a 9mm hex bore designed to be stretched onto a standard 1/2" hex shaft. Larger wheels, 3 inches and above, have a 1-inch bore that can be stretched over a MotionX Hub, allowing them to be driven by a hex shaft. This larger bore design also enables you to stretch these wheels over a Round Roller tube to create a strong and lightweight roller.

Available in:

Straight Solid Core Flex Wheels (Product Page)

Made from a custom, high-strength silicone rubber compound, these wheels offer superior performance compared to other flexible or compliant wheels commonly used in FRC and FTC robots. They come in four diameters, each available in three durometers: Soft (30A), Medium (45A), Hard (60A). The option of different durometers allows you to customize the traction and compliance of your mechanism for optimal performance.

These wheels feature a 1/2" hex molded core for improved strength and reliability. This solid-core design eliminates the need for stretch-fit installation, offering ease of assembly and long-term durability for high-performance rollers.

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Star Flex Wheels (Product Page)

Made from a custom, high-strength silicone rubber compound, these wheels offer superior performance compared to other flexible or compliant wheels commonly used in FRC and FTC robots. They are available in three durometers: Soft (30A), Medium (45A), Hard (60A). The option of different durometers allows you to customize the traction and compliance of your mechanism for optimal performance.

Available with either a 1/2” hex or 1/4” round stretch-fit bore, they offer compatibility with a variety of shafts and roller systems. Each wheel features molded indicator lines, allowing teams to quickly and accurately trim the wheel to their desired diameter. Whether used for intakes, feeders, or transfer systems, Star Flex Wheels offer a reliable and adaptable solution.

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Stub Roller System (Product Page)

Our Stub Roller System provides a highly modular platform for teams to create a variety of rollers. Constructed from high-strength aluminum, this system delivers a lightweight yet robust solution for your robot. The stub design allows for easy roller installation and removal by using the stub wrench and the included mounting bolt. We offer pulley end hubs, SplineXL end hubs, and regular end hubs, enabling you to utilize belts and gears for powered rollers, or configure them as idler rollers as needed.

Stub Roller Shafts

These Stub Roller Shafts feature a #10 clearance hole and come with a pre-installed #10-32 nut on the shoulder end, providing a secure and reliable mounting solution for rollers. This design simplifies roller installation and removal, making swaps faster and less complicated during maintenance or competition.

Stub Roller Hubs

Hubs Available:

• 1-1/8" OD Aluminum Stub Roller Hub

• 20t Pulley w/ 1-1/8" OD Aluminum Stub Roller Hub (5mm HTD)

• 1-1/8" OD to SplineXL OD Aluminum Stub Roller Hub

• SplineXL ID Aluminum Stub Roller Hub

• 20t Pulley w/ SplineXL ID Aluminum Stub Roller Hub (5mm HTD)

• SplineXL OD w/ SplineXL ID Aluminum Stub Roller Hub

Accessories

Popular accessories for the Stub Roller system include the Stub Shaft Wrench, which allows for quick and easy roller assembly or replacement. For roller construction, teams can choose between 1.125" aluminum round tube stock or the lightweight 1.200" carbon fiber variant, depending on their performance and weight requirements.

Round Roller System (Product Page)

The Roller system gives teams a modular system to create almost any kind of roller. Available in high-strength black anodized aluminum, the Roller system enables you to easily create the solution for your roller needs

Roller Grip Tape

Cat Tongue Grip Tape is an excellent solution for increasing traction in intake or roller systems without damaging game pieces. Its non-abrasive surface provides strong, reliable grip while remaining gentle on delicate materials, making it ideal for FRC applications where performance and care go hand in hand.

Available in:

• Cat Tongue Non-Abrasive Grip Tape (2" WD, 10FT)

• Cat Tongue Non-Abrasive Gription Sheet (11" WD, 44")

Roller Tubing

Roller tubing is a versatile solution for building intake and conveyor systems, giving teams an easy way to create lightweight, durable rollers. Whether you're prototyping or building a final mechanism, this tubing simplifies the process while delivering reliable performance.

• .875" ID x 1" OD Aluminum Round Tube Stock (47")

• 1.125" ID x 1.25" OD Aluminum Round Tube Stock (47")

Roller Hubs

Roller Hubs are designed to pair seamlessly with Roller Tubing, providing a secure and efficient way to mount and drive your intake or conveyor rollers. Each hub interfaces with a hex shaft, allowing for reliable power transmission and simplified assembly in a wide range of FRC mechanisms.

• 7/8" OD Aluminum Roller Hub (1/2" Hex Bore)

• 7/8" OD Aluminum Roller Hub (5/16-18 Tapped Bore)

• 1-1/8" OD Aluminum Roller Hub (1/2" Hex Bore)

• 1-1/8" OD Aluminum Roller Hub (5/16-18 Tapped Bore)

Hub Inserts

Roller Hub Inserts make it easy to drive a roller using a pulley, sprocket, or other external mechanism, without the need for a full-length hex shaft. By allowing the roller to ride on a bearing or support, these inserts simplify your design while reducing weight and complexity. They are ideal for compact and efficient intake or conveyor systems.

• 1/2" Hex OD x 1-1/4" L Roller Hub Hex Insert (5/16-18 Tapped)

• 1/2" Hex OD x 3" L Roller Hub Hex Insert (5/16-18 Tapped)

Roller Hub Flanges

Roller Hub Flanges are placed at the end of a tube to increase the flange's outer diameter as a way to prevent rope, polycord, flat belting, etc. from slipping off the end of a tube.

• 1.75" Roller Flange (1" ID Roller) (2-Pack)

• 2" Roller Flange (1.25" ID Roller) (2-Pack)

Polycord & Pulleys (Product Page | Manual)

Do you need a single pulley? A double? A triple? You can have 1,323 pulleys, or even more, all by stacking a single part! Our new stackable pulleys allow you to have as many (or as little) pulleys as you’d like by stacking a single part over and over and over. The stackable pulleys are designed to fit together seamlessly, and are sized such that the outer diameter of a 1/4” polycord cable on the pulley is either 1.625” or 2” to match with our flex wheel sizes.

• Black Polycord (1/4" WD, 50FT)

• 1.625" Pulley (1/4" Groove, Single)

• 1.625" Pulley Slice (1/4" Groove, Double)

• 2" Pulley (1/4" Groove, Single)

• 2" Pulley Slice (1/4" Groove, Double)

• #2-28 x .375" L Thread Forming Screw (Plastic, Black Zinc) (50-Pack)

Silicone Tubing (Product Page)

Silicone Tubing is commonly used in FRC for roller applications such as intakes and feeder systems. Our various sizes combined with the elasticity of silicone tubing allow application for virtually any roller size.

• 0.25" OD x 0.125" ID x 0.0625" Silicone Round Tube Stock (47" L, 45A)

• 0.5" OD x 0.375" ID x 0.0625" Silicone Round Tube Stock (47" L, 45A)

• 0.75" OD x 0.625" ID x 0.0625" Silicone Round Tube Stock (47" L, 45A)

• 1" OD x 0.875" ID x 0.0625" Silicone Round Tube Stock (47" L, 45A)

• 1.25" OD x 1.125" ID x 0.0625" Silicone Round Tube Stock (47" L, 45A)

• 1.5" OD x 1.375" ID x 0.0625" Silicone Round Tube Stock (47" L, 45A)

• 2" OD x 1.875" ID x 0.0625" Silicone Round Tube Stock (47" L, 45A)

• 2.5" OD x 2.375" ID x 0.0625" Silicone Round Tube Stock (47")