This is what the wheels I printed were for. I'm trying to recreate a GWR 1400 tank in a 6 wide scale. The wheels work well enough but are nowhere close to
Official LEGO Response to Train Wheel Design Changes - YouTube
Train Wheel RC, Spoked with Technic Axle Hole and Counterweight, 37 mm D. (Flanged Driver) : Part 85489b | BrickLink
Wheels - L-Gauge
LEGO Black Train Wheel Large Ø30 with Axlehole and Pinhole with Flange (85489) | Brick Owl - LEGO Marketplace
Big Ben Bricks LLC
Smartable Train Wheels MOC Custom Parts Building Block Toys For Professional Compatible City Train 50254/57999/
3D Printed LEGO® Compatible Steam Wheels, Big Boy Pack – Brick Train Depot
Big Ben Bricks LLC
Ball bearings – MattzoBricks
Amazon.com: LEGO Parts, Bricks, and Pieces - Black Train Parts Combo Pack (2 X Buffer Beam with Sealed Magnets and 2 X Train Wheel RC, Holder with 2 Black Train Wheels) : Toys & Games