Suitcase wheels, luggage repair wheels, heavy-duty 50mm silent rubber universal swivel replacement wheels for suitcases/luggage/backpacks/travel. Buyers should measure the following suitcase wheels to determine the correct size: 1. Measure the original outer diameter of the wheels (wheel size). 2. Measure the inner width of the wheel groove (total width when installed). 3. Measure the length of the screw (without the nut at either end). 4, measured by the pipe diameter and the bore width of the bearing. + Product ♣ Size: Bearing inner diameter: 21 mm / * Inner diameter: 6 mm / * Wheel diameter: 50 mm / * Thickness: 18 mm / * Axle length: 36 mm. ♣ Installation: Simple luggage wheels, no professional instructions required, can be installed by yourself, very convenient. Also make sure the wheel is properly sealed during installation so that the luggage wheels roll smoothly. ♣ Advantages: High-quality replacement wheels. Durable, silent, load-bearing, double bearings, flexible rotation. ♣ Load: A single suitcase can carry up to 51 kg, without deviations, for safe and reliable use. ♣ Cleaning: The replacement wheels for suitcases are easy to clean and can be removed for cleaning. – Installation: Simple parts, no professional instructions required, can be installed by yourself, very convenient. Pay attention to the sealing of the wheel during installation to ensure smooth rolling. Features: 2 * Suitcase wheel set (2 wheels, 2 axles, 2 axle screws, 4 washers, 2 wrenches). Supports a single load of 50 kg without problems; safe and reliable use.