OEM 31QB-30130 R520-9 R480-9

• 
  Part number: 31QB-30130
  


• 
  Type: Swing reducer assembly
  


• 
  Reduction ratio: 136:1
  


• 
  Maximum swing torque: 49,000 Nm
  


• 
  Maximum swing speed: 6.9 rpm
  


• 
  Weight: Approximately 620 kg
  

It is important to note that these specifications may vary depending on the specific model and configuration of the Hyundai excavator they are being used in.