4" x 2" Ductile Steel V-Groove Wheel Kingpinless Swivel Brake Caster - 1250 Lbs Capacity u-groove-wheel Ductile steel is a step

Ductile steel is a step up from cast iron

Please note if more than one track is being used

While not designed to run on flat iron

Link to Matching Swivel Caster w/ Face Contact Brake: P51052CIRBFCB

10" x 2-1/2" Cast Iron Rigid Caster - Part # Q7110R01STL

4" x 2" Ductile Steel V-Groove Wheel Kingpinless Swivel Brake Caster - 1250 Lbs Capacity u-groove-wheel Ductile steel is a step4" x 2" Ductile Steel V Groove Wheel Kingpinless Swivel Brake Caster Part # P51042DVRBTLB V groove wheels are designed to guide equipment by rolling on inverted angle iron track, however, they can also operate off the track thanks to the tread on either side of the v groove. Ductile steel wheels are the next level up in capacity & durability from cast iron wheels. Made from a combination of alloys that provide excellent tensile strength, these wheels