Mansdone “Spherical Top Bearing Structure” Introduction

When saxophone people first time heard "Spherical Top Bearing Structure", they may confused, what is "Spherical Top Bearing Structure"? What is the differences between "Spherical Top Bearing Structure" and "Usual Kind"? How to repair when the"Spherical Top Bearing Structure" has mechanical failure? Here we will explain all these questions.

1.what is "Spherical Top Bearing Structure"?
"Spherical Top Bearing Structure"means "Screwless Structure", "Screwless" means: usually key rods used screw, if screw get loose, the key will leak air, the sax pitch not accurate. our sax key rods use no screw, it's a fixed bearing system, won't get loose, no air leak, the pitch always accurate.

2.What is the differences between "Spherical Top Bearing Structure" and "Usual Kind"?
"Usual Kind" saxophone has a lot of screws, "Spherical Top Bearing Structure" use the "Spherical Top Bearing Structure" instead of screws, so no screws, if no screws, the screws won't getting loose, and mechanical more stable.

3.How to repair when the "Spherical Top Bearing Structure" has mechanical failure?
"Spherical Top Bearing Structure" usually don't have mechanical failure, so you needn't worry about this. In the very rare case that "Spherical Top Bearing Structure"a small problem occurs, you tell us, we can guide you through the video to adjust it, it's very easy, you needn't find a professional luthier.

Following there is a video to explain the "Spherical Top Bearing Structure":

https://www.youtube.com/watch?v=EqZ79VPBxjU