AGMA 13FTM23

For over three decades, open gearing for many applications hasbeen successfully designed and manufactured from ductile iron.Examples spanning a full range of size and transmitted power are inservice in various process industries throughout the world, provingthe soundness of this material selection in technical as well aseconomical terms. The latest metallurgical and manufacturingdevelopments have re-established the practical limits for thismaterial, well beyond what was considered possible as recently as afew short years ago. A ductile iron gear of 16 m diameter, 340 BHN(min.) hardness, module 42, with a face width of 1200 mm and havingAGMA Q10 teeth quality, capable of transmitting 2×10 000+ kW waspreviously a concept. Today, such a gear can be manufactured.Despite its long and successful service history, ductile ironremains a somewhat lesser known commodity as an open gearingmaterial. The goal of this paper is to present the current”state-of-the-art” with respect to ductile iron as a gear material,including its mechanical properties as applicable to gear design,structural characteristics, typical manufacturing and inspectionplans, and in-service behavior. For each of these aspects, ductileiron will be compared to other available materials for open gearingdesign and manufacture,

Edition:

13

Published:

09/01/2013

Number of Pages:

20

File Size:

1 file , 2 MB