Here is a high-traction wheel which includes a grippy rubber tire, an pneumatic inner tube, and a strong plastic hub. These parts are shipped to you in kit form. The unique aspect about this product is the competition-ready hub. The hub accepts any 200x50mm tire and inner tube, 1.125 in. (outside diameter) ball bearings (2 per wheel are needed), and the mounting holes needed to install hardware to be sprocket-driven or hub-driven. This wheel ships as a separate tire, inner tube, and hub halves.

Assembly is required.

Important Notes:

• Diameter: The nominal diameter for this wheel is actually 7.65 in. when inflated normally.
• Tube pinching: When assembling the tube within the two hub halves, be careful not to pinch the tube rubber between the plastic hub halves. If assembled with the tube pinched between the hub halves, the tube may puncture and leak.

RPM Rating and notes:

These wheels are designed to be propulsion wheels for driving a robot or wheel chair. The design intent is to be contacting the ground, being driven by a gearbox at a maximum speed of approximately 500 rpm (which results in 17 feet/sec).

Within some applications, this wheel has been used as a shooter of objects, spinning at a very high rpm. For these applications, a higher rpm shows that the wheel may wobble, since the valve stem is mounted off to one side of the center of the wheel hub. We have seen properly balanced wheels, using securely mounted hardware (longer screws, washers) that can handle 5,000 rpm. When spinning this wheel at speeds up to 5,000 rpm, please take proper safety precautions.


Included Hardware:

• Tire for 8 Inch Pneumatic Wheel (Metric Size 200x50mm)
• Inner Tube for 8 Inch Pneumatic Wheel, with 90 Degree Stem (for 200x50mm Tire)
• Hub Assembly for 8 inch Pneumatic Wheel, which includes two (2) black plastic hub halves and six (6) 4-40 x1 Pan Head Phillips thread rolling screws

NOT Included Hardware:

• Bearings
• #10 Screws and Nuts Needed to Mount a Hub (2 Inch Long Screws are Needed) or a Sprocket (2.25 Inch Long Screws are Needed)
• Aluminum Hub, if Driven by a Shaft

Wheel Structure:

The hub halves are held together with the #4-40 screws. This wheel can accept #10-32 screws for mounting sprockets or hubs, but these are NOT included since different length screws are needed to mount hubs or sprockets. These #10 screws can be mounted to the included 1.875 inch diameter bolt circle. The hub halves need to be assembled together so that the valve stem clearance holes line up. Locating features are present for easy alignment.

Usage:

With Axle and Hub:

• In order to drive this wheel with a hub, use Hardware Kit 11, which includes #10-32x2 screws (6) and #10-32 nylock nuts (6)

With Sprocket:

• In order to drive this wheel with a plate sprocket, use Hardware Kit 12, which includes a 550 Sprocket Spacer, #10-32x2.25 screws (6) and #10-32 nylock nuts (6).
• Two (2) bearings are needed for this wheel, if being driven by a sprocket. Use bearings with a 1.125 inch outer diameter. No flange is needed on either of the bearings.

Use as a caster:

• If you want to let this wheel spin without being driven, you will need to install two (2) bearings with 1.125 inch outer diameter.

Specifications

• Bolt Pattern: 6 holes, 0.20 diameter on 1.875 in. diameter bolt circle
• Bore: 1.00 in. thru hole, with 1.125 in. x 0.375 in. deep bearing pockets
• Diameter: 7.65 in.
• Load Capacity: 120 lbs
• Material: black polycarbonate, gray rubber
• Maximum Pressure: 35 psi
• Tread Width: 2 in.
• Valve Stem: The valve stem may stick out up to 0.375 in. from hub
• Weight: 1.13 lbs
• Width Across Middle: 1.8 in.

Documents

Guide(s)

8-inch Pneumatic Wheel Assembly Instructions AM-0970.pdf

This is the strong polycarbonate plastic hub for the 8 inch Pneumatic Wheel. This product is shipped in kit form. The hub's design is intended to accept any 200x50mm tire and inner tube, 1.125 inch (outside diameter) ball bearings (2 per wheel are needed), and the mounting holes needed to install hardware to be sprocket-driven or hub-driven.

Specifications:

• Weight:0.37 pounds
• Width: 1.8 inches
• Material: black polycarbonate plastic
• Bore: 1.00 inch thru hole, with 1.125 inch x 0.375 inch deep bearing pockets
• Bolt Pattern: 6 holes, 0.20 diameter on 1.875 inch diameter bolt circle
• Outside Diameter: 4.15 inches

Hardware: 

Included Hardware:

• Two (2) black plastic hub halves
• Six (6) #4-40x1 Pan Head Phillips thread rolling screws

NOT Included Hardware:

• bearings
• #10 screws and nuts needed to mount a hub (2 inch long screws are needed) or a sprocket (2.25 inch long screws are needed)
• tire and inner tube: Any 200x50mm tire and inner tube can fit this hub, as long as the inner tube has a 90 degree valve stem.

Wheel Structure: 

• The hub halves are held together with the #4-40 screws. This wheel can accept #10-32 screws for mounting sprockets or hubs, but these are NOT included since different length screws are needed to mount hubs or sprockets. These #10 screws can be mounted to the included 1.875 inch diameter bolt circle. The hub halves need to be assembled together so that the valve stem clearance holes line up. Locating features are present for easy alignment. 

Usage: 

With Axle and Hub:

• In order to drive this wheel with a hub, use Hardware Kit 11, which includes #10-32x2 screws (6) and #10-32 nylock nuts (6)

With Sprocket:

• In order to drive this wheel with a plate sprocket, use Hardware Kit 12, which includes a 550 sprocket spacer, #10-32x2.5 screws (6) and #10-32 nylock nuts (6).
• Two (2) bearings are needed for this wheel, if being driven by a sprocket. Use bearings with a 1.125 inch outer diameter. No flange is needed on either of the bearings.

Use as a caster: 

• If you want to let this wheel spin without being driven, you will need to install two (2) bearings with 1.125 inch outer diameter.

This is the grippy gray rubber tire which can be mounted to this Hub in order to make up the 8 in. Pneumatic Wheel.
 

Specifications

• CoF Forwards/backwards On Aluminum: 0.62 (fully inflated)
• CoF Forwards/backwards On Poly-carbonate: 0.61 (fully inflated)
• CoF Forwards/backwards On Steel: 0.49 (fully inflated)
• CoF Forwards/backwards On Tight Pile Carpet: 1.27 (fully inflated)
• Diameter: 7.65 in.
• Manufacturer: Cheng Shin Tire
• Material: gray rubber
• Maximum Pressure: 35 psi
• Tread Size: 8x2 in. (200x50mm)
• Weight: 0.65 lbs
• Width: 2 in.

This is the inner tube used within the tire on the 8 inch Pneumatic Wheel.

Specifications:

• Weight: 0.3 pounds
• Size: Fits within a 8 inch diameter, 2 inch wide tire (200x50mm)
• Material: rubber
• Valve Stem: 90 degrees

Molded polycarbonate, 6 inch diameter high traction wheel with Wedgetop tread 

Specifications:

• Diameter: 6 inches
• Width: 1.00 inch
• Width at Hub: 1.54 inches
• Bore: 1.124 inch bore, 0.25 inches deep on either side
• Bolt Pattern: 12 Holes around a 1.875" diameter circle, every other hole is sunken
• Body Material: Black Polycarbonate
• Load Capacity: 150 pounds (estimated)
• Weight: 0.81 pounds
• Tread Capture: 0.9 inch wide (clamps tread)
• Tread Width: 1 inch
• Tread Type: Wedgetop Conveyor Belting
• Coefficient of Friction on HDPE: 0.423

Included Hardware:

• Two - 6" Plaction Wheel Halves
• Six - Individual #10-32x1" SHCS
• Six - Individual #10-32 Nylock Nuts
• One - 6" Wheel Wedgetop Tread
• Two - Individual Alligator Clips
• One- Individual Alligator Clip Pins

Usage:

• There are two ways to drive this wheel. One way is with a Axle and Hub, and the other is with a Sprocket. To install a sprocket or hub onto a Plaction wheel, use 10-32 x 1.75" socket head screw (qty. 3 or 6), and 10-32 nylock nuts. To use one sprocket on each side of a Plaction wheel (2 sprockets total) use 10-32 x 2.5" screws (3 or 6) and 10-32 nylock nuts. 

With Axle and Hub:

• If you wish to drive this wheel with an Axle and Hub, you can pick your hub by fitting any of the AndyMark hubs (except the Small DD Globe Hub) to this wheel. Hubs are NOT included in the price of the wheel. If this is your choice, then no bearing is needed.

With Sprocket:

If you wish to drive this wheel with a sprocket, then the sprocket needs to be attached to the side of the wheel, and two ball bearings need to be pressed into the wheel (one on each side). The smallest sprocket that will work with these wheels is a S35-24 tooth and a S25-36 tooth sprocket.

With Bearing:

• If your design needs this wheel to spin on a stationary axle (and possibly be driven by a sprocket), you will need 2 bearings with a 1.125" od pressed into this wheel. Use am-0029 for a 1/2" bore and am-0209 for a 3/8" bore. One bearing is pressed into each side of the wheel. Bearings are NOT included in the price of this wheel.

With Tread:

• This wheel is designed to capture 1" wide conveyor belt tread (Roughtop or Wedgetop) between 2 wheel halves. The 6 perimeter screws can be loosened by 1/8 inch to install the desired tread. We recommend using Alligator Clips to hold the tread together on the wheel. One 6" Wheel Wedgetop Tread is included in the price of the wheel.
• For a Wider Wheel:
• This wheel is designed so that a 5" PVC schedule 40 pipe can be inserted between the two wheel halves, and a wider wheel can be created (additional tread may be needed).

This product contains 8 Alligator Clips and 4 Pins, to create your own connections for tread. It will cover the needs for 4 complete Plaction wheels, or 4 connections in general. 

We use these Clips to connect the tread on our Plaction wheels. You can use these clips to rebuild your damaged tread, or make your own lengths of tread for any wheels by getting 10' lengths of tread.

Documents

Guide(s)

am-0894 How Tread Clips Install.pdf

You need to move and this tread is the way to do it. Tread on wheels for drive systems or custom conveyors this gray grippy tread as the perfect amount of grip for moving materials and robots.

This tread is best paired with our four-inch performance wheels for FTC but can be used anywhere you need some grip on your robot! 

Specifications

• Color: Gray
• Durometer: 60A
• Length: 10 ft.
• Thickness: 0.1 in.
• Weight: 0.47 lbs

The Sushi Roller Intake Wheels are an excellent choice for robot intakes, internal conveyors, feeder mechanisms, or anywhere you need a durable, compact and grippy roller. These rollers are made with a robust polycarbonate hex bore hub, so no external hub is necessary - just slide them onto a hex shaft, constrain them axially and you are good to go. Available in a range of durometers for a wide variety of applications, these cute little rollers are great for getting a grip on things!

Specifications

• Bore: 0.5 in. Hex, 5 mm Hex, 0.375 in. Hex
• Core Material: Polycarbonate
• Diameter: 1 in.
• Durometer: 35A (Green), 40A (Orange), 50A (Blue), 60A (Black)
• Tread Material: TPU
• Weight: 0.022 lbs
• Width: 1 in.

The Sushi Roller Intake Wheels are an excellent choice for robot intakes, internal conveyors, feeder mechanisms, or anywhere you need a durable, compact and grippy roller. These rollers are made with a robust polycarbonate hex bore hub, so no external hub is necessary - just slide them onto a hex shaft, constrain them axially and you are good to go. Available in a range of durometers for a wide variety of applications, these cute little rollers are great for getting a grip on things!

Specifications

• Bore: 0.5 in. Hex, 5 mm Hex, 0.375 in. Hex
• Core Material: Polycarbonate
• Diameter: 1 in.
• Durometer: 35A (Green), 40A (Orange), 50A (Blue), 60A (Black)
• Tread Material: TPU
• Weight: 0.022 lbs
• Width: 1 in.

The Sushi Roller Intake Wheels are an excellent choice for robot intakes, internal conveyors, feeder mechanisms, or anywhere you need a durable, compact and grippy roller. These rollers are made with a robust polycarbonate hex bore hub, so no external hub is necessary - just slide them onto a hex shaft, constrain them axially and you are good to go. Available in a range of durometers for a wide variety of applications, these cute little rollers are great for getting a grip on things!

Specifications

• Bore: 0.5 in. Hex, 5 mm Hex, 0.375 in. Hex
• Core Material: Polycarbonate
• Diameter: 1 in.
• Durometer: 35A (Green), 40A (Orange), 50A (Blue), 60A (Black)
• Tread Material: TPU
• Weight: 0.022 lbs
• Width: 1 in.

The Sushi Roller Intake Wheels are an excellent choice for robot intakes, internal conveyors, feeder mechanisms, or anywhere you need a durable, compact and grippy roller. These rollers are made with a robust polycarbonate hex bore hub, so no external hub is necessary - just slide them onto a hex shaft, constrain them axially and you are good to go. Available in a range of durometers for a wide variety of applications, these cute little rollers are great for getting a grip on things!

Specifications

• Bore: 0.5 in. Hex, 5 mm Hex, 0.375 in. Hex
• Core Material: Polycarbonate
• Diameter: 1 in.
• Durometer: 35A (Green), 40A (Orange), 50A (Blue), 60A (Black)
• Tread Material: TPU
• Weight: 0.022 lbs
• Width: 1 in.

The Sushi Roller Intake Wheels are an excellent choice for robot intakes, internal conveyors, feeder mechanisms, or anywhere you need a durable, compact and grippy roller. These rollers are made with a robust polycarbonate hex bore hub, so no external hub is necessary - just slide them onto a hex shaft, constrain them axially and you are good to go. Available in a range of durometers for a wide variety of applications, these cute little rollers are great for getting a grip on things!

Specifications

• Bore: 0.5 in. Hex, 5 mm Hex, 0.375 in. Hex
• Core Material: Polycarbonate
• Diameter: 1 in.
• Durometer: 35A (Green), 40A (Orange), 50A (Blue), 60A (Black)
• Tread Material: TPU
• Weight: 0.022 lbs
• Width: 1 in.

The Sushi Roller Intake Wheels are an excellent choice for robot intakes, internal conveyors, feeder mechanisms, or anywhere you need a durable, compact and grippy roller. These rollers are made with a robust polycarbonate hex bore hub, so no external hub is necessary - just slide them onto a hex shaft, constrain them axially and you are good to go. Available in a range of durometers for a wide variety of applications, these cute little rollers are great for getting a grip on things!

Specifications

• Bore: 0.5 in. Hex, 5 mm Hex, 0.375 in. Hex
• Core Material: Polycarbonate
• Diameter: 1 in.
• Durometer: 35A (Green), 40A (Orange), 50A (Blue), 60A (Black)
• Tread Material: TPU
• Weight: 0.022 lbs
• Width: 1 in.

The Sushi Roller Intake Wheels are an excellent choice for robot intakes, internal conveyors, feeder mechanisms, or anywhere you need a durable, compact and grippy roller. These rollers are made with a robust polycarbonate hex bore hub, so no external hub is necessary - just slide them onto a hex shaft, constrain them axially and you are good to go. Available in a range of durometers for a wide variety of applications, these cute little rollers are great for getting a grip on things!

Specifications

• Bore: 0.5 in. Hex, 5 mm Hex, 0.375 in. Hex
• Core Material: Polycarbonate
• Diameter: 1 in.
• Durometer: 35A (Green), 40A (Orange), 50A (Blue), 60A (Black)
• Tread Material: TPU
• Weight: 0.022 lbs
• Width: 1 in.

We are proud to offer AndyMark's latest and greatest 6 in. diameter Mecanum wheel. This wheel's features are a culmination of our hard work in developing the Mecanum wheel since we introduced an affordable wheel to the market in 2006. This version was previously updated in the fall of 2017, and is an improvement on our previous HD (Heavy Duty) version. It has the same heavy duty features, but with an added smoothness while rolling. We minimized the gaps between the rollers, enabling this wheel to be our "smooth rolling" (SR) Mecanum Wheel.

A wheel set is comprised of two left (am-3479La) and two right (am-3479Ra) wheels. Should you need a replacement wheel, a single left or right can also be acquired. These wheels have a weight capacity of 200 pounds per wheel.

Everyone knows, Blue Nitrile Roughtop Tread is the best tread in the competitive robotics marketplace. This tread is the magic behind many top-performing robots. This tread is a ground-breaking 1.5 inches wide to fit wider profile wheels like our 1.5 inch wide XL Performance Wheels. Or, use this on your own custom wheels - now you don't have to custom-cut tread for your custom wheels!