5" x 2" Cast Iron V-Groove Wheel Swivel Caster - 900 Lbs Capacity furniture Temp Range: -45°F to 180°F

Temp Range: -45°F to 180°F Mounting Plate: 4" x 4-1/2" Wheel Durometer: Rockwell 75B  Bolt Hole Pattern: 2-5/8" x 3-5/8" slotted to 3"x 3" Wheel Color: Red Mounting Bolt Size: 3/8" or Smaller Link to Replacement Wheel: LDS520 Weight: 7

or are looking for an upgrade to cast iron

they offer maximum weight capacity

Wheel Type:Forged Steel Wheel Durometer:Rockwell 80B Overall Height:6-1/2" Caster Rig Material Type: Cold Rolled Steel Caster Rig Color/Finish:Bright Zinc Plated

5" x 2" Cast Iron V-Groove Wheel Swivel Caster - 900 Lbs Capacity furniture Temp Range: -45°F to 180°F5" x 2" Cast Iron V Groove Wheel Swivel Caster Part # 146VIRB520S V Groove wheels are designed to guide equipment by rolling on inverted angle iron track, however, they can also operate while not on a track thanks to the tread on either side of the v groove. The cast iron wheel offers a strong, resilient, cost effective solution for heavy loads. If more capacity is needed, check out the heavier duty ductile steel & forged steel wheels. * Please note