5" x 2-5/16" Forged U-Groove Wheel Rigid Caster - 1,250 Lbs Capacity overall-height-8-1/2 In addition to its stronger

In addition to its stronger material composition

Overall Height:7-1/2"

6" x 3" Cast Iron Wheel Swivel Caster - Part # P7106301121

Please look at the replacement wheel picture (see link below) for a better example

Roll-able Tread Width: 1-7/16"

5" x 2-5/16" Forged U-Groove Wheel Rigid Caster - 1,250 Lbs Capacity overall-height-8-1/2 In addition to its stronger5" x 2 5 16" Forged U Groove Wheel Rigid Caster Part # 146PMUG520R U Groove wheels are designed to guide equipment by rolling on pipe, however can also operate off a track thanks to the tread on either side of the U groove. Forged steel wheel casters are the premium of all the steel wheel casters. The forged steel wheel is made from ASTM 1045 high carbon steel that is hot drop forged. It offers the maximum weight capacity, impact strength & durability