VEX Robotics will be closed in observance of the US Thanksgiving holiday on Thursday, November 26th, and Friday, November 27th, 2015. Sales or technical support inquiries placed during this period will be processed Monday, November 30th, 2015.

Be advised that UPS will be closed for delivery on Thursday, 11/26. For example, a Next-Day Air order placed by 2:00 PM CST on Wednesday, 11/25, will be delivered on Friday, 11/27. Orders placed after 2:00 PM CST on Wednesday will process and ship out Monday, 11/30, to be delivered from there according to the selected shipping speed.

We appreciate your understanding and wish all VEX users a happy holiday season.

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8" Mecanum Wheel - Right

 8" Mecanum Wheel - Right
  • 4" Mecanum Wheel - Right
  • 6" Mecanum Wheel - Right

Mecanum Wheels

Mecanum wheels allow savvy robot designers to create drivetrains capable of moving in any direction using a standard chassis shape. Simply power each wheel with a different motor and change the directions the wheels spin to get your robot to move in different directions!

Mecanum wheel assembly hardware is separate from sprocket mounting hardware. Sprockets are screwed into captive 8-32 standoffs. This allows for easy removal and replacement of sprockets without disassembling the entire wheel. No more worrying about your whole wheel falling apart just because you wanted to remove the sprocket.

These mecanum wheels were designed from the ground up to give the smoothest ride possible. Our construction method allows for a constant contact patch with a narrow profile. Each roller is tailored for the individual wheel diameter, and provides the correct, constant radius. We don't share rollers between wheel types -- these wheels aren't "almost round" -- they're actually round! This smooth-ride provides higher efficiency and reduces wasted power. This is especially important in mecanum drivetrains to provide smooth holonomic motion without high motor current draw.

VEXpro Mecanum Wheels are manufactured from Glass-filled Nylon, with ABS-PC roller mounts and rubber rollers.

6" & 8" Wheels ship fully assembled. 4" Wheels require assembly.

Product Name P/N: Availability Price Qty
4" Mecanum Wheel - Right 217-3644
In Stock
4" Mecanum Wheel - Left 217-3645
In Stock
6" Mecanum Wheel - Right 217-2586
In Stock
6" Mecanum Wheel - Left 217-2799
In Stock
8" Mecanum Wheel - Right 217-2587
In Stock
8" Mecanum Wheel - Left 217-2801
In Stock
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Mecanum Wheel Replacement Roller Kits
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Mecanum Wheel Update

The 4" and 6" Mecanum Wheels have been updated for the 2015 season. The differences include a co-molded single bushing and a new co-molded spring steel tab (seen in the image below as brown and green, respectively). Rollers with the internal improvement can be identified by the wider base tab outlined in green below. Please contact with any questions or concerns.

A set of new-style 6" Mecanum Wheels were endurance tested on the 2015 FIRST ® Robotics Competition field to see how they handled the scoring platform bumps. After 4+ hours of drive time, the only damage to the wheels was worn rubber on the rollers.

Mecanum Wheel Accessories

Mecanum Wheel Replacement Roller Kits

Mounting Hardware Guide

  • Mounting (1) Keyed or Hex VersaHub - 1/4" or 3/8" long screw
  • Mounting (1) Plate Sprocket and (1) Sprocket VersaHub - 1" or 1.25" long screw
  • Mounting (2) Plate Sprockets and (2) Sprocket Versahubs - 1.5" or 1.75" long screw

Technical Specifications

6" and 8" Mecanum Wheels:

Mounting Holes: (6) 8-32 threaded mounting holes (into captive standoffs) on a 1.875" bolt circle
Bearing Hole: 1.125" OD Bearing Hole
Bearing Retainers: (3) 0.130" holes (designed to self-tap with a #8 screw) on a 1.4" bolt circle
Load Rating: Conservatively rated for use on 200 lb robots
Coefficient of Friction: 1.0

4" Mecanum Wheels:

Bore: 1/2" Hex
Load rating: Conservatively rated for use on 200 lb robots
Body: Glass-filled Nylon

Roller Mounts: ABS-PC

Rollers: Rubber
4": 0.55 lbs

6": 1.25 lbs

8": 1.90 lbs

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