1-1/16" ID Round Nylon Socket

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

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...

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

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

2" x 7/8" HARD Rubber Wheel ; 3/8 Bore; 63/64" Hub Length; Ball Bearings; 125 lb Load Capacity; Compatible with Darnell 30 series casters.