... and improve efficiency. 3, hardened by high-precision synchronous drive gear, importedbearings, equipment, long life, low noise. 4, high ... 5, transmission medium is not oil. No oil lubrication the internalchassis, and used to avoid bearing, gear oil mixed with chassisstructural design. Output ... (configured in accordance with contractrequirements) flexible joint, lubricating oil, exhaust muffler.