Heavy Duty 4 Inch Polyolefin Swivel Caster Wheels Set Of 4 With 1600 Lbs Capacity Smooth Rolling Workhorse Casters For Industrial Carts Dollies And Rigging Equipment

Heavy duty 4 inch polyolefin swivel caster wheel pack
✔️ Set of 4 casters rated for 400 lbs each with 3/8 inch bolt hole

These sealed ball bearing rollers move heavy loads smoothly across warehouse floors, shop benches, and utility trays. They slide easily into place on standard industrial carts, medical racks, and mobile storage frames without scratching concrete or tile. ✅ Four inch diameter polyolefin treads resist moisture and solvents
✅ Reinforced steel forks handle consistent impact and heavy shifts
✅ Non marking surface keeps workshop floors clean and hazard free
✅ Universal bolt pattern fits most factory built rolling platforms

💡 How do heavy duty swivel casters prevent premature axle wear during constant friction?
A properly packed bearing assembly protects critical contact points from rapid degradation. Here is how it actually works in the field:
- Grease filled journal chambers trap particulate matter away from the moving shaft
- Precision machined races keep lateral play minimal even when fully loaded down
- Coated pivot surfaces slide freely so steering stays loose and handy under stress

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