6" x 2" Ductile Steel V-Groove Wheel Swivel Caster - 1,250 Lbs Capacity track-caster ): 900 Link to Matching

): 900 Link to Matching Rigid Caster: 146VIRB520R

however can also operate off a track thanks to the tread on either side of the U-groove

4" x 2" CAST IRON WHEEL SWIVEL CASTER WITH 3/4" THREADED STEM - Part #: 7RTP042CIR

Please select bearing type on the drop down labeled 'bearings' next to the picture

6" x 2" Ductile Steel V-Groove Wheel Swivel Caster - 1,250 Lbs Capacity track-caster ): 900 Link to Matching6" x 2" Ductile Steel V Groove Wheel Swivel Caster Part # 146DVRB620S Ductile V Groove wheels are designed to guide equipment along inverted angle iron tracks but can also function without a track due to the tread on both sides of the V groove. Made from a combination of alloys that provide excellent tensile strength, these wheels come with extra thick treads, hubs & walls. Ductile steel is a step up from cast iron, offering higher capacity &