I need to get a 1/2hp motor for my LT90 MarcoI make my own parts or have them made.
I ordered top of the line bearings from McMaster Carr for the reel shaft and lubricated the interior with airplane landing gear grease.
I replaced the axle and added air up tires. I enlarged the loading wheel to 8”.
I milled the front torque tube bearing out of bronze and keep it greased with wheel bearing grease.
If you keep the bearings nice and tight nothing wears out.
It has an AO smith motor that I can get repaired or replaced at a local motor shop.