4" x 2" Ductile Steel Wheel Kingpinless Rigid Caster - 1,500 Lbs Capacity wheel-type-cast-iron 5" x 2" Cast Iron

5" x 2" Cast Iron V-Groove Wheel Swivel Brake Caster - Part # 146VIRB520SB

Swivel Construction: Double Ball Raceway - 5/8" Kingpin

25" opening in the v-groove that can be used with 3/16" flat iron tracks

6" x 3" Cast Iron Wheel - Part # QSTL6RO

8" x 2" Ductile Steel Wheel ES Swivel Caster - Part #: 28ES12

4" x 2" Ductile Steel Wheel Kingpinless Rigid Caster - 1,500 Lbs Capacity wheel-type-cast-iron 5" x 2" Cast Iron4" x 2" Ductile Steel Wheel Kingpinless Rigid Caster Part # P50042DUCT Manufactured from a high strength steel alloy, ductile steel offers improved capacity, durability & impact resistance compared to standard cast iron wheels. Ductile steel provides approximately 45,000 PSI tensile strength & features a thicker tread, spokes & hubs to withstand abusive industrial applications. Its moderately crowned tread design further reduces friction during