I needed a castor wheel for a Stiga Ping Pong table, I couldn't find one so I created one.

The wheel itself is 41mm in diameter.

The size of the hole where the pinion goes in to the casing is 8mm in diameter.

I printed it in eASA as the ping pong table is quite heavy, if the load is light, I suspect PLA or PETG will be fine too.

20% infill, no support needed.

The wheels connect together using a 6mm x 29mm rod (I used an aluminiuma 6mm rod cut to size).