1. Good vibration-damping capability and long service lifeTwo hubs are inserted into a coupling with steelflex sheet, vibration rate is over 36%.2. Bearing widely changing load and safe starting.3. Efficient transmission and dependable operateThe efficiency of transmission is 99.47%. Short-time overload ability is twice of rated load and can operate on the safe side.4. Low noise and good lubricate.5. Sample structure and convenient installation and disassembly.6. Reasonable installation deviation allowed.