4" x 2" Medium Heavy Duty Polyurethane on Plastic Caster - Swivel (1 EA) 40 Series Medium Heavy Duty Casters Features Cold forged top late and base Double row ball bearing swivel raceway constrcution for extra strength Hardened Raceways. Zerk fitting in Swivel race for lubrication Finish: all parts except wheel are zinc plated for corrosion resistance. Legs are formed and welded to yoke base to increase strength.
4" x 2" Medium Heavy Duty Polyurethane on Plastic Caster - Rigid (1 EA) 40 Series Medium Heavy Duty Casters Features Cold forged top late and base Double row ball bearing swivel raceway constrcution for extra strength Hardened Raceways. Zerk fitting in Swivel race for lubrication Finish: all parts except wheel are zinc plated for corrosion resistance. Legs are formed and welded to yoke base to increase strength.
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