Abstract: A wheel seat for a roller skate includes a shoe, a wheel seat, multiple vibration absorbers, multiple bolts and rollers and having vibration absorbers on its wheel seat. The wheel seat connecting to the bottom of the shoe is provided on both sides of and beneath it with multiple positioning grooves for mounting the vibration absorbers which each comprises an external housing and an inner slide.

Abstract: An improved structure of a brake on roller skates for improving the braking effect, having a braking set seat, a braking pad, a spring and an adjustable positioning rod, a guide member is provided extending down and rearwardly from the braking set seat to form a slightly inclined receiving space which can hold a spring. A block on the top of the braking pad is fitted into the receiving space from below, and an adjustable positioning rod can be inserted at a lateral side of the braking set seat straight into the block. When braking, pressing down of the braking set seat causes the braking pad to touch the ground, while further pressing causes the braking pad to contact a roller of the skate to ensure braking and safety of a user.