Sliding gate casters are designed to provide smooth and effortless rolling motion, allowing the caster to run along a track, ensuring stability and reducing friction during operation.Rolling gate wheels are engineered to handle strong loads. Made from durable carbon steel, these casters offer great strength and load-bearing capacity and provide durability, hardness, and resistance to wear and tear.The sliding gate wheel is coated to resist corrosion and is waterproof. This protective layer helps prevent rusting and extends the lifespan of the casters, making them suitable for outdoor applications or in environments with high moisture or exposure to chemicals.The design and construction of the gate wheel can reduce noise levels while rolling along the track, ensuring a quiet and comfortable environment.The pulley bearing can be used on various types of sliding gate and and drive mechanical equipment, including industrial gate, commercial gate, and residential gate, sliding barn doors, automatic mobile doors, aluminum doors, pulleys and drawers, wheelbarrows, garden carts, etc.Note: Choose the wheel size according to the track size, check the size and confirm the guide wheel before purchase to meet your needs. Size - Wheel Diameter: 47mm / 1.85 ; Total Height: 59mm / 2.32 ;Groove Width: 18mm / 0.71 ; Hole Diameter: 7mm / 0.28 ;Bracket Length: 68mm / 2.68 ;Bracket Width: 40mm / 1.57 ; Hole Spacing Size: 23.5x54mm / 0.93 x2.13 (L*W); Capacity Per Wheel: 250kg / 551 lbs. Material - Made from durable galvanized carbon steel, these casters offer great strength and load-bearing capacity and provide durability, high hardness, and resistance to wear and tear. Rolling gate wheels are engineered to handle strong loads up to 250kg / 551 lbs. Features - Sliding gate casters are designed to provide smooth and effortless rolling motion, allowing the caster to run along a track, ensuring stability and reducing friction during operation, corrosion resistant and waterproof material making them even suitable for outdoor applications. Applications - The pulley bearing can be used on various types of sliding gate and and drive mechanical equipment, including industrial gate, commercial gate, and residential gate, sliding barn doors, automatic mobile doors, aluminum doors, pulleys and drawers, wheelbarrows, garden carts, etc. Note - Choose the wheel size according to the track size, check the size and confirm the guide wheel before purchase to meet your needs. Brand Name HARFINGTON Unit Count 4.0 Count Part Number hta230815hh000477 Wheel Width 2 Inches Manufacturer HARFINGTON Material Type Aluminum, Steel Mounting Type Plate Mount Surface Recommendation Multi-Surface