SolidTrax Track Dolly Wheels, Set of 4, for Modus System

Complete set of four SolidTrax quad wheel assemblies for building a
track dolly using the Modus platform. The set includes 16
polyurethane wheels and 32 precision bearings total, giving you
everything needed to convert a Modus platform into a smooth-rolling
track dolly.

Each assembly is fitted with dual ball bearing sets for smooth rotation
on both straight and curved tracks. They fit tracks from 3/4” to 1.5”
and mount to the Modus platform with included knobs. When
mounted, the track spacing is 7-1/4” (184mm) on center.

This is the wheel set only. For a complete ready-to-use track dolly
system, see the Modus Track Dolly System which includes both the
platform and wheel sets. If you want to build from scratch, pair this
set with a Modus platform (sold separately).

Steel, aluminum, or rigid PVC piping is recommended for track
material.

Specs:

• Quantity: 4 quad wheel assemblies (16 wheels, 32 bearings)
• Track compatibility: 3/4” to 2” 
• Track spacing on Modus: 7-1/4” (184mm) on center
• Wheel size: 53mm polyurethane
• Material: Aluminum brackets, polyurethane wheels, stainless steel bearings
• Finish: Powder-coated