They are strong cast iron wheels not to be confused with smaller light weight wheels or Cambridge roller sections. One has a small casting mark as shown.
eBay
PINGGO Large 4 Wheel Heavy Duty Garden Cart Truck Trolley Wheelbarrow with Handle and Metal Frame - Green
Aliexpress UK
Rustic Cast iron Furniture wheel. Finish: Left in Natural casting with oil finish. 3" SWIVEL WHEEL. 2" SWIVEL WHEEL. Material: Cast iron. OVERALL HEIGHT INCLUDING WHEEL 95MM. OVERALL HEIGHT INCLUDING WHEEL 70MM.
eBay
Manual Grinder Small Cast Iron Household Herbs Hand Crank Grinder Corn Grains Walnut Crushing
Aliexpress UK
Cast iron rustic furniture trolley fittings. ROD - 900MM X 15MM.
eBay
9-Teeth Weeding Wheel 26×9 Red+Black, Iron Spray Painting 10cm Blade Lawn Mower Weed Remover Tool
Aliexpress UK
Ideal for a coffee table, bar or any other rustic furniture that you are upcycling. Two of them swivel and two are fixed. Made of steel/cast iron ?.
eBay
AXLE BRACKET -HEIGHT 110MM -HOLE SIZE 16MM. ROD - 900MM X 15MM. IN YOUR CHOSEN ITEM FROM THE ABOVE DROP DOWN BAR.
eBay
Rather Fabulous Reclaimed / Salvaged Old Cart or Trolley Probably from a Mill / Warehouse / Industrial Setting Cast Iron Wheels & Very Heavy Wooden Structurally all good, great patina too 79cm tall x 65cm x 96cm Collection Tarporley, Cheshire CW6, or UK courier at cost … I have only estimated for the eBay system, please confirm cost prior to purchase by contacting me with your postcode … Thanks for looking & please take a look at my other items … Jackie, Country Chic Cheshire (I can deliver locally but would need assistance lifting)
eBay
Double Bearings: The caster wheel has built in double bearings, the wheel is in the center, with stable rotation. Item Type: Caster Wheel. 1 x Caster Wheel. Cast Iron: Made of excellent cast iron material, with high hardness, wear resistance and long service life.
eBay
No cracks or breaks. Ideal for stationary trolley project or similar. Price is for the set of 4.
eBay