Size: bearing inner diameter: 21 mm / 6 mm / X Wheel diameter: 50 mm / X Thickness: 18 mm / X Axle length: 36mm.

Installation: Simple luggage rollers, without professional instructions, can be installed by yourself, very convenient. Also pay attention to the tightness of the wheel at the time of installation, so that the luggage rollers can roll better.

Advantages: Premium replacement wheels. Durable, quiet, load-bearing, double bearings, flexible rotation.

Load: a single suitcase can carry up to 51 kg, without deviation of the phenomenon for safe and reliable use.

Cleaning: The suitcase replacement wheels are easy to clean and the wheels can be removed for cleaning.

Buyers should measure the data of the following suitcase wheels to know what size they can roll:

1, measure the original wheels with outer diameter (wheel size).

2, the inside of the groove width of the measuring wheel (the wheel width of the total installed width).

3, through the length measuring screw (without nut at both ends).

4, measured by the thickness of the pipe diameter bearing bore width.