Heavy Duty 4 Inch Replacement Caster Wheels 4 Pack, Pre Assembled PVC Swivel Casters Roll Like Butter, 400 Lb Each With Precision Bearings, Includes All Needed Mounts For Rock Solid Cart And Furniture Fixes

Solid replacement pallet truck rollers sold in fourpack sets
✔️ Dual 6001 bearings red polymer 395in dia 400lb rated

This four piece swap set features tough PVC rollers built for smooth sliding on warehouse aisles and shop floors. You drop these directly onto existing metal pins to fix racking systems dolly frames and workbench stands without extra tools.

✅ Outer ring crosses 3.95 inches or 100 mm across
✅ Width spans 1.26 inches or 32 mm flat
✅ Inner hole opens to 0.47 inches or 12 mm through
✅ Sleeve cuts bore down to 0.37 inches or 9.5 mm tight
✅ Assembly ratings hit 400 pounds or 180 kg max

💡 How do sealed ball bearings improve load stability on heavy duty replacement caster wheels?
Proper bearing geometry does the heavy lifting before you push a loaded dolly out the door.
- Crossed wire tracks distribute pressure evenly across rotating metal hubs
- Factory packed grease reduces drag so shifting direction feels totally handy
- Rigid chrome housing blocks vibration when hauling full tool cabinets
- Dust covers stop debris entry and keep pivot points turning smooth long term

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