VEX Robotics will be closed in observance of the Christmas holiday from Thursday, December 25, 2014 through Thursday, January 1, 2015. Sales or technical support inquiries placed during this period will begin processing Friday, January 2nd, 2015.

For example, a Next-Day Air order placed by 3:00 PM CST on Tuesday, 12/23, will be delivered on Wednesday, 12/24.
This is the last opportunity to ship an order in time for Christmas.

Orders placed after 3:00 PM CST on Tuesday, 12/23/14 will begin processing and shipping out Friday, 1/2/15, to be delivered from then per the selected shipping speed.

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

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4" Omni-Directional Wheel (2-pack)


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  • Large Omni-Directional Wheel Kit

4" Omni-Directional Wheel (2-pack)

P/N: 276-2185

Reinvent the wheel!

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. These wheels are the same size as the VEX 4" dia. Wheels.

  • 4" Omni Wheels roll sideways with very little friction.
  • Minimize skidding during turns.
  • Build a holonomic drive.

In stock

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Items in stock ship from our warehouse on Monday!

You may also be interested in the following product(s)

Product Name P/N: Availability Price Qty
2.75" Omni Directional Wheel - Double Roller (2-pack) 276-1902
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3.25" Omni-Directional Wheel (4-Pack) 276-3526
In stock


As the name suggests, an omni-directional wheel can travel in more than one direction. When the axle spins, it behaves like a normal wheel. However, you’ll notice that there are rollers all around the outer circumference. These rollers allow the wheel to travel sideways as well!

Technical Specifications

Kit Contents
  • (2)4" Omni-Directional Wheels
  • (1)Inventor's Guide Insert
Downloads & Docs Inventor's Guide - Large Omni-Directional Wheel
Compatibility Drive Shafts (0.125" square bar)
Material Type
  • Wheel:ABS Plastic
  • Roller:Soft Rubber over ABS Plastic
  • Diameter:4.000" (101.6mm)
  • Width:1.125" (28.6mm)
  • 4" Omni-Directional Wheel0.232 lbs (105 grams)
    • Actual weight of one item (no packaging)

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