52-L-BPO-3/8-16X3/4

Dual Wheel Swivel Caster Bright Zinc Finish #20(2-1/2x3-5/8)Top Plate Dual 2x7/8 Advanced Elastomer Wheels Ball Bearings 400 lb Load Capacity 3-1/4" Overall Height

ROUND DOUGHNUT BUMPER 3-1/4 O.D.; 15/16 Wide; 5/16 Bolt Hole. Gray Thermoplastic rubber with metal insert.

The Darnell-Rose 85-24-PXAE-CB caster is a must have in any application.  The 5" diameter Advanced Elastomer wheel gives you the needed strength of 1000 lbs load capacity while providing durability...

Dual Wheel Rigid Caster Bright Zinc Finish #20(2-1/2x3-5/8)Top Plate Dual 2x7/8 Advanced Elastomer Wheels Ball Bearings 400 lb Load Capacity 3-1/4" Overall Height

30 Series Swivel Caster-Bright Zinc Finish; #20(2-1/2x3-5/8)Top Plate; Dual 2x7/8 Blue Glass Filled Nylon Wheels; Ball Bearings, 450 lb Load Capacity This Glass Filled Nylon (GFN) wheel has been extensively tested...