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Omnia Wheel Omni-Directional Wheels

Manufactured entirely from engineering resins/polymers, Omnia WheelTM Omni-Directional Wheels are light, durable, impact and corrosive resistant. The injection moulded web-like structure of the 125mm wheel body and over-moulded rollers create a robust, high impact, corrosion resistant wheel, with no pins, inserts or seams.

Rotacaster's unique, durable construction with its high load bearing capacity, stable mounting capabilities and smooth ride quality makes it ideal for tough environments and industrial applications.

Omni-Directional Wheel Benefits
  • 360° manoeuvrability - without turning or swiveling wheels
  • Better directional control and tracking
  • Precise positioning - without swivel offset correction
  • Minimal wheel space/housing requirements
  • Simple mounting - able to tilt or lever off the fixed wheel mounting
  • Non marking polyurethane rollers
  • Load stability - a static centre of load relative to wheel base
  • Load distribution - the ability to use multiple wheels without swivel offset resistance
  • Robust - wheel frame and roller axles provide a web-like structure with over-moulded rollers
  • Tough and rust free - full polymer construction with no steel pins

Omni-Wheel Size Options

Rotacaster Wheels are available in FIVE sizes - 35mm, 50mm, 90mm, 125mm and 180mm.



The smallest wheel in the Rotacaster family. Used for both driven and free rolling conveyor transfer systems, inspection tables, ball transfer stations, as robotic wheels or other wheeled application.

35mm wheels guarantee optimum roll ability and lifecycles to fit nearly any purpose. The soft TPE rollers provide maximum traction for speed and acceleration, ideal for robotic competitions.

Choice of:

  • Soft, over-moulded TPE rollers (57A), ideal for robotic application
  • Solid nylon rollers (99A) best for inverted conveyor use (not suitable as a floor wheel on hard surfaces)

Body Types:

  • ABS
  • Acetal

Available with:

  • 4.8mm diameter bushings
  • 6mm diameter bushings
  • 8mm diameter bushings
  • Available with a cross or 1/8" square axle bushing, the wheel is applicable for either the LegoTM Mindstorms NXT or Technics Vex

(Wheels without bushings or plain bores are available on request).



Used for both manual and powered conveyor transfer systems, feed tables, flow rails, pipe rollers, workstation turntables, as furniture casters and as robotic wheels.

With full resin construction, the 50mm wheel provides a minimal risk for lost rollers and maintenance costs in environments sensitive to interruptions. A great swivel caster or ball transfer alternative.

Choice of:

  • Moderate roller softness (57A)
  • Moderate to firm (75A) 
  • Firm (95A) durometer (hardness)
  • Hard (solid - 99A) TCP roller for several purposes (not suitable as a floor wheel on hard surfaces)

Body Types:

  • Non-marking polyurethane rollers on medium (57-75A Blue Grey)
  • Firm (dark grey) Rotacasters are over-moulded onto acetal bushings for optimum roll-ability and lifecycle
  • Solid Rotacaster rollers (darker grey) run directly on the roller axle without utilising an axle

A broad range of plain, keyed and hexagonal bores along with acetal insert bushings are available to fit new and existing applications. They include:

  • 8mm steel roller bearing
  • 6mm plain bushing
  • 8mm plain bushing
  • 12mm plain bushing
  • 1/2" plain bushing
  • 3/8" hex insert
  • 7/16" hex insert
  • 1/2" hex insert
  • LEGO insert
  • VEX insert



Used for manual and powered conveyor transfer systems, flow rails, pipe rollers and workstation turntables. Incredibly robust, the 125mm wheel is designed with an injection moulded web-like structure made from engineering polymer with over-moulded rollers.

The 125mm wheel is used on the self-supporting Rotatruck to achieve unrivalled manoeuvrability and movability.

Choice of:

  • Doubles (R2)
  • Triples (R3)
  • Quads (R4) for varying load and weight requirements

Available in:

  • Softer 85A rollers. Recommended for indoor usage like in warehouses or in noise sensitive/quiet environments (e.g. health sector)
  • 95A rollers: extremely robust, durable and applicable to all surfaces and environments especially outside
  • Single 125mm Rotacaster (R1) wheels: suitable for conveyor transfer use only. Every 125mm Rotacaster Wheel has 8 over-moulded polyurethane (PU) rollers.
  • Two hardness formats to suit different surfaces, surroundings and environments.

A range of keyed, nominal bores and different bearing/bushing options (sealed, shielded, nylon) are suitable for every purpose.


International +61 249 078 100 | Australia 1300 768 222

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