5" x 2" Cast Iron V-Groove Wheel Kingpinless Swivel Brake Caster - 900 Lbs Capacity BBQ they're tough on floors and

they're tough on floors and could lead to floor damage

5" x 1-1/4" Steel Wheel Swivel Caster with Brake - Part # Q525001STLTLB

Their hard rolling surface performs best on smooth floors where maximum strength & minimal rolling resistance are required

V groove wheels are designed to guide equipment by rolling on inverted angle iron track

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5" x 2" Cast Iron V-Groove Wheel Kingpinless Swivel Brake Caster - 900 Lbs Capacity BBQ they're tough on floors and5" x 2" Cast Iron V Groove Wheel Kingpinless Swivel Brake Caster Part # P51052VIRBTLB V Groove wheels are designed to guide equipment by rolling on inverted angle iron track, however, they can also operate while not on a track thanks to the tread on either side of the v groove. The cast iron wheel offers a strong, resilient, cost effective solution for heavy loads. If more capacity is needed, check out the heavier duty ductile steel & forged steel