4 Inch L Shaped Caster Wheels Side Mount Swivel Casters Heavy Duty Dual Ball Bearing Smooth Rolling Platform Cart Setup Built Tough Rock Solid Workbench Shelving Hauling Rig Zero Wobble

Heavy duty swivel caster wheels for solid workbenches
✔️ 4in dual ball bearing PU casters hold up to 300

You get a set of four side mount caster wheels that turn stiff carts into rolling hubs. They slide your heavy tools or storage racks across the shop floor without scraping. The L plate design locks onto beams while you haul loads fast.

✅ L shape base locks tight to vertical beams for steady side mounting
✅ Double ball bearings cut drag so you push lighter equipment down the aisle
✅ Polyurethane rolls guard concrete and epoxy floors from scratch marks
✅ Zinc coated steel brackets plus included hardware handle three hundred pound loads

💡 What makes sealed dual ball bearing casters better for industrial carts?
These components keep dirt out while you maintain steady traction under weight.
- Chrome steel balls spin inside grease packed races to lower friction during heavy pushes
- Precision ground tracks resist lateral wobble when you steer loaded platforms around tight aisles
- Sealed shields block shop dust so your rig stays handy through years of daily hauling