8" x 2" Ductile Steel Wheel Kingpinless Rigid Brake Caster - 2,000 Lbs Capacity wheel-diameter-10-inch Wheel Diameter: 4" Caster Rig

Wheel Diameter: 4" Caster Rig Material Type: Cold Rolled Steel Tread Width: 2" Caster Rig Color/Finish: Bright Zinc Plated Wheel Type: Cast Iron Swivel & Rigid Casters Wheel Bearing Type: See Bearings Options Swivel Radius: 3-1/4" Overall Height: 5-5/8" Swivel Construction: Double Ball Raceway - 5/8" Kingpin Temp Range: -45°F to 600°F  Mounting Plate: 4" x 4-1/2" Wheel Durometer: Brinell 145 Bolt Hole Pattern: 2-5/8" x 3-5/8" slotted to 3"x 3" Wheel Color: Silver Mounting Bolt Size: 3/8" or Smaller Link to Replacement Wheel:  QSTL4M0 Weight: 27

meaning where the axle goes through it sticks out further on one side than the other

Hub Length (with Bearings): 50 mm (1

Groove Depth: 7/16"

1-3/16" Plain Bore

8" x 2" Ductile Steel Wheel Kingpinless Rigid Brake Caster - 2,000 Lbs Capacity wheel-diameter-10-inch Wheel Diameter: 4" Caster Rig8" x 2" Ductile Steel Wheel Kingpinless Rigid Brake Caster Part # P50082DUCTTLB Manufactured from a high strength steel alloy, ductile steel offers improved capacity, durability & impact resistance compared to standard cast iron wheels. Ductile steel provides approximately 45,000 PSI tensile strength & features a thicker tread, spokes & hubs to withstand abusive industrial applications. Its moderately crowned tread design further reduces friction