VEX Robotics will be closed in observance of Thanksgiving on Thursday, November 22nd, and Friday, November 23rd. Our office will re-open on Monday, November 26th.

Be advised that FedEx will be closed for delivery on Thursday, 11/22. For example, a Next-Day Air order placed by 2:00 PM CST on Wednesday, 11/21, will be delivered on Friday, 11/23. Orders placed after 2:00 PM CST on Wednesday will process and ship out Monday, 11/26, to then be delivered according to the selected shipping speed.

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

Omni-Directional Wheels

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Omni-Directional Wheels

Omni-Directional wheels roll forward like normal wheels, but slide sideways with almost no friction (no skidding during turns). Use these wheels to make your robot turn smoothly or build a holonomic drivetrain.

VEXpro Omni-Directional Wheels are manufactured from Glass-filled Nylon with high-traction rubber rollers. Compatible with VEXpro VersaHubs for driving with a sprocket or can be used with bearings for use on an axle.

New for the 2019 FTC / FRC season, we've redesigned the 4” Omni-Directional Wheel to have a similar construction style to our 3.25” Omni-Directional Wheel. We decreased the number of rollers, to reinforce the body and improve the strength during sideways impacts. Don’t worry, it’s only a little wider than the current 4” Omni-Directional Wheel, and should still fit anywhere you were currently using a 4” wheel before.

Ships fully assembled. The 3.25" Omni-Directional Wheel (217-4775) only has a center bore, and does not include mounting holes for sprocket, gear, or hub attachment.

Availability: In stock

OR
Product Name Availability Price Qty
3.25" Omni-Directional Wheel
217-4775

In Stock

$17.99
4" Omni-Directional Wheel v2
217-6194

In Stock

$19.99
6" Omni-Directional Wheel
217-2585

In Stock

$29.99
8" Omni-Directional Wheel
217-2613

In Stock

$29.99
Description

Details

These Omni-Directional wheels were designed from the ground up to give the smoothest ride possible. Our construction method, using a dual roller design, 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!

Omni-Directional 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.

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
Material Type
Body:
  • Glass-filled Nylon

  • Rollers:
  • 3.25" - 90 Shore TPR Rubber
  • 4" v2 - b70 Shore TPR Rubber
  • 6" - b70 Shore TPR Rubber
  • 8" - b70 Shore TPR Rubber
  • Drawing
    Weight
  • 3.25 Omni-Directional Wheel (217-4775)" - 0.39 lbs
  • 4" Omni-Directional Wheel v2 (217-6194) - 0.52 lbs
  • 6" Omni-Directional Wheel (217-2585) - 0.94 lbs
  • 8" Omni-Directional Wheel (217-2613)- 1.35 lbs
  • Other Info
    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 Fricion: 1.1
    CAD Files