1. The most widely used fixed rigid coupling
2. Simple structure, reliable working performance, strong torque transmission. Easy to disassemble
3. GY type uses hinged hole bolts for centering, and installation and disassembly do not move along the axial direction
GY.GYS.GYH flange coupling GYS type concave and convex grooves are centered, easy to process, and disassembly requires axial movement. The shaft hole can be a tapered hole