Thon Wheel Set 50mm Studio Rack

I have an 18U rack sat ontop of these, about half full on a hardwood floor.
It rolls away, not because the floor is uneven, but because whenever I go to push a jack into a socket the unit is pushed away from me... then it keeps going...

Credit where credit is due, the bearings in these wheels are really good... maybe too good. Thoman should invest in some breaks on these wheels and you should consider if you really need your rack to move, and how you plan to stop it moving when you don't want it to... I use a doorstopper.

I bought these as an accessory for the Thon rack.

Just four screws per wheel into the pre-drilled holes in the rack. The work well aren't intrusive and make the rack really easy to move.

For a reasonable price you can add useful feet to Thon racks. Sadly there is no locking mechanism to fix a rack in place, but there would be no way to reach it anyway under the rack. The wheels are good quality and feel like they can hold a reasonable amount of weight without deforming like cheaper wheels.