4 in. HD Mecanum, Wheel Set

am-3067

$225.00

4 inch, HEAVY DUTY Mecanum wheel set, these come assembled as shown in the picture. This is a set of 4 wheels, consisting of 2 "right" wheels and 2 "left" wheels. All 4 wheels are required to make...Read More

Product Overview

4 inch, HEAVY DUTY Mecanum wheel set, these come assembled as shown in the picture. This is a set of 4 wheels, consisting of 2 "right" wheels and 2 "left" wheels. All 4 wheels are required to make a Mecanum drive holonomic system to work properly. This version of the wheel can handle a 200 pound load per wheel. The interior body of this wheel is made of molded black polycarbonate, while the perimeter side plate is made of 1/8 inch thick steel, zinc plated. The perimeter plate is riveted to the interior body, and each perimeter bent tab rests on the interior body rim. This support allows for the wheel to handle more load.

Please know that we also offer an 8mm bore version (am-3919) of this same wheel, targeted at use within FTC.

Individual Hardware within Each Wheel:Roller and Axle Design:
The gray urethane rubber roller (am-3027) has a durometer rating of 80A. The roller has a Nylon core, and rides on a stationary brass tube.

Wheel Structure:
9 rubber rollers are sandwiched between 2 steel plates. The steel plates are riveted to two interior polycarbonate hubs, which form the interior of the wheel. The two interior pieces are held together by the fastening technique of the rollers being attached.

These wheels can be purchased individually as Left (am-3026L) or Right (am-3026R) wheels. They are sold without hubs, sprockets, or bearings.

Usage:

For FTC Robots: If attached to a shaft or NeveRest motor, these parts are needed for each wheel
With Axle and Hub: If driven by a shaft, these parts are needed for each wheel
  • A hub that matches the size of the drive shaft. For 1/2 in. dia. shafts, use a 1/2 in. Key Hub (am-0077a) for each wheel.
  • #10-24 thread-forming screws are used to fasten a hub to the wheel (we suggest 6).
  • 1/8 x 1/8 x 3/4 steel machine key (am-1043) is needed, one per wheel
With Sprocket: If driven by a sprocket, these parts are needed for each wheel
  • Flanged ball bearings (qty. 2) with 1.125 in. od: either 3/8 in. inside diameter (am-0209), or 1/2 in. i.d. (am-0181)
  • A sprocket (type A) with a bolt hole circle of 1.875 in. diameter mounts to the wheels' interior bolt pattern.
  • #10-24 thread-forming screws are used to fasten a hub to the wheel (we suggest 6).

Specifications

  • Bolt Pattern: 6 holes (0.2 in. diameter) on a 1.875 in. diameter circle
  • Bore: 1.124 in.
  • Diameter: 4 in.
  • Forward / Reverse Coefficient of Friction: 0.7 (on tight pile carpet)
  • Load Capacity: 200 lbs per wheel
  • Material: 0.12 in. thick steel, zinc plated,molded black polycarbonate,Urethane rubber (gray),Nylon (white),Nylon spinning over brass tube
  • Roller Axle: Brass tube
  • Roller Durometer: 80A
  • Rollers: 9
  • Sideways CoF: 0.6 (on tight pile carpet)
  • Weight: 0.9 lbs (each wheel)
  • Width Across Middle: 2.18 in.

Recommendations

8 reviews

  1. star star star star star 5.0 out of 5 stars

    Great Customer Service

    The wheels came and they are great, however the best part was their service. One of the wheels came with a slight defect (it happens, 99% of the stuff I have ordered has been perfect), the roller was not completely smooth due to a defect. I contacted them and got a reply within 1 hour and they offered to send out some replacements free of charge. I had another order on the way and they slipped them in that package. I was really happy with how it all turned out.

  2. star star star star star 5.0 out of 5 stars

    Review

    5 Stars

  3. star star star star star 5.0 out of 5 stars

    Dancing Washer

    Andy and Team -- As I mentioned during a visit to your FIRST CMP booth, 3620 is building a mecanum drive base to support a washing machine. These wheels are a critical design element of that project, and we are hoping their robustness and relatively high load rating will allow us to drive the washer 'bot in stressful and interesting ways. Will let you know more as the project proceeds. For now, thank you very much for getting these wheels in our hands quickly at a good price.

  4. star star star star star 5.0 out of 5 stars

    Review

    5 Stars

  5. star star star star star 5.0 out of 5 stars

    Review

    5 Stars

  6. star star star star empty_star 4.0 out of 5 stars

    4" HD Mecanum, Wheel Set (am-3067)

    A little frustrating waiting for availability but Prompt delivery once advice was provided on when products became available.

  7. star star star star star 5.0 out of 5 stars

    Review

    5 Stars

  8. star star star star star 5.0 out of 5 stars

    4" HD Mecanum, Wheel Set (am-3067)

    Thanks for the great, speedy service and quality parts.

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