Cement Milling 4140 Gear Ring Rolled Forging ASTM / ASME , Alloy
The inner gear ring
Planetary gear, internal gear and the planet frame the same axis,
is refers to the tooth part at the inner side of the circular
workpiece commonly known as inner gear. The inner gear ring more
extensive application range are generally in mass production.
The inner gear ring material mainly uses the gear steel, such as
17CrNiMo6, 18CrNiMo7-6, 20CrNiMo and so on.
The gear box of the inner gear ring is mainly used in various
sectors of the inside, for example: wind power gear box, gear box
and so on cement mill.
Forged after finishing, quenching and tempering, after milling,
carburizing, then grinding, after reaching the requirements of the
It conforms to the standard of ASTM and ASME
The manufacturing equipment is 60 MN hydraulic press, the forging
UT standard is in accordance with standard of EN10228.3:1998 level
Delivery lead time :45days
Port of loading:Shanghai
ASTM and ASME
Max. Length: 5000mm
EF+LF + VD
Ingot→heat → forging → Heat treatment (Normalizing+ tempering) →
Inspection →rough machining→UT →2nd Heat treatment →finishing
EN10228.3:1998 level 3