4" x 1-1/4" Polyurethane Swivel Caster with Total Lock Brake - 350 Lbs Capacity

4" x 1-1/4" Polyurethane Wheel Swivel Caster with Total Lock Brake - Part# Q524001PLYSWB Polyurethane wheels offer more floor protection, non-marking treads, quieter rolling, & smoother rides compared to steel, plastic, or other hard tread wheels, while still providing comparable load capacities. These wheels are great for most applications, but are not recommended for extreme hot or cold applications, when left in direct sunlight for most of their use, or if left parked in one place for long periods of time.  Specifications: Load Capacity (lbs.): 350 Link to Matching Rigid Caster: Q5240R01PLY Wheel Diameter: 4" Caster Rig Material Type: Cold Rolled Steel Tread Width: 1-1/4" Caster Rig Color/Finish: Bright Zinc Plated Wheel Type: Polyurethane Swivel or Rigid Caster: Swivel with Total Lock Brake Wheel Bearing Type: Ball Bearings Swivel Radius: 3-13/32" Overall Height: 5" Swivel Construction: Double Ball Raceway Temp Range: -20 to 180 F Mounting Plate:  2-3/8" x 3-5/8" Wheel Durometer: 60 shore D Bolt Hole Pattern: 1-3/4" x 2-7/8" to 3" Wheel Color: Black on Gray Mounting Bolt Size: 5/16" or Smaller Link to Replacement Wheel: QPLY4J3 Weight: 1.61 Lbs