Assembling structure of support bracket and wheel axle of skateboard

An assembling structure of support bracket and wheel axle of skateboard, comprising:

• a support bracket, which is mounted to an underside of the skateboard and comprises at least one axle hole, the axle hole comprising an internally threaded section and a groove formed at a predetermined location;
• a retention ring, which is of predetermined elasticity for predetermined deformation;
• and
• a wheel axle, which has an end portion comprising an externally threaded section and a retention slot at a predetermined location and an opposite end portion adapted to couple to a wheel;
• wherein the externally threaded section of the wheel axle is threadingly engageable with the internally threaded section of the axle hole in such a way that the retention ring is set in retaining engagement between the groove and the retention slot with a portion of the retention ring received in the groove and another portion received in the retention slot, so as to have the end portion of the wheel axle retained in the axle hole by means of threading engagement and retaining engagement without being axially movable.