Platform-style carts like this one place the load-bearing responsibility on the cart instead of the driver
Load Capacity: 450 Lbs
Vulcanized To Core Core Type Cast Iron Bearing Type Roller Bearing Wheel Color Black Overall Height 6-1/2" Swivel Radius 4" Plate Size 4" x 4-1/2" Bolt Hole Pattern 2-5/8" x 3-8/5" to 3" x 3" Bolt Hole Diameter 3/8" Durometer Shore A 80 (+/-5) Temperature Range -40° F to 180° F Model / MPN 27RS50JB0417YY
and bearing type Stainless Steel Roller Bearing
8" x 2" Mold-On Rubber Cast Wheel Swivel Caster - 600 lbs. capacity 8" Wheel Diameter Platform-style carts like this oneProduct Overview The mold on rubber cast wheel is an economic wheel, providing cushion while rolling on a strong cast iron core. This wheel performs best in dry applications. Tread: Rubber, Vulcanized To Core This caster is listed with wheel diameter 8", tread width 2", load capacity 600 Lbs., tread type Rubber, Vulcanized To Core, and bearing type Roller Bearing. Before ordering, verify the listed wheel dimensions, load capacity, bore or bearing, hub