Groove Spring Universal Wheel 304 Stainless Steel Heavy Duty Track Wheel Caster Sliding Gate Roller Wheel for Swing Sliding Gate

SIZE SPECIFICATIONS: 3 sizes for choice: 2in/2.5in/3in, 3 types for choice: U-type, V-type, H-type. STAINLESS STEEL MATERIAL: The groove casters are made of 304 stainless steel which has higher strength, better capability of resisting rust and corrosion. SPRING UNIVERSAL WHEEL: The spring top ring helps to prevent rope, cable or wire from knotting, and provide convenient use for ease wire handling or door sliding. QUIET SLIDING: Two rolling bearings built in the groove wheel can reduce the friction with the wheel for stable and quiet sliding. WIDE APPLICATION: The plate caster can be used to inverted track, yard gate, rolling gate, patio sliding gate, industrial machines, wire rope rail device, factory door, etc.