Girth gear, also known as a ball gear or gear ring, is a large-diameter mounted on the outer circumference of heavy-duty rotating equipment such as ball mills, rotary kilns and dryers. It serves as a critical components in transmitting torque and rotational motion from a driving system to the main drum or shell of the machinery;
 

ltem	Specification
Diameter	≤15m
Module	≤45
Material	Cast or Forged Alloy Steel,Cast or forged Carbon Steel,
Structure From	Integrated,Half to Half.Four segments
Heat Treatment	Quenching&Tempering,Normalizing &Tempering.Carburizing &Quenching &Tempering
Tooth Form	Annular Gear,Outer Gear Ring
Standard	ISO,EN,DIN,AISI,ASTM,JIS,IS,GB