5" x 2-5/16" Forged U-Groove Wheel Swivel Caster - 1250 Lbs Capacity application-gates Overall Height: 7-1/2" Swivel Construction:

Overall Height: 7-1/2" Swivel Construction: Kingpinless - Heat Treated Precision Machined Raceway Temp Range: -45°F to 550°F  Mounting Plate: 4" x 4-1/2" V-Groove Width: 7/8" Bolt Hole Pattern: 2-5/8" x 3-5/8" slotted to 3"x 3" V-Groove Depth: 7/16" Mounting Bolt Size: 3/8" or Smaller Link to Replacement Wheel: PAH110 Weight: 16

and durability when compared to forged steel wheels

5" x 1-1/4" Steel Wheel Swivel Caster with Brake - Part # Q525001STLTLB

Link to Matching Swivel Brake Caster: 146CIRB820SB

check out the heavier duty ductile steel and forged steel wheels

5" x 2-5/16" Forged U-Groove Wheel Swivel Caster - 1250 Lbs Capacity application-gates Overall Height: 7-1/2" Swivel Construction:5" x 2 5 16" Forged U Groove Wheel Swivel Caster Part # 146PMUG520S Forged steel wheels are the premium of all the steel caster wheels. This forged steel wheel is made from ASTM 1045 high carbon steel that is hot drop forged. It offers the maximum weight capacity, impact strength & durability of all caster wheels. Specifications: Load Capacity (lbs.): 1250 Link to Matching Rigid Caster: 146PMUG520R Wheel Diameter: 5" Wheel Durometer: Rockwell 89 93 B