Based on the good relationship with steel mill, EB can always meet with the special demands from
our customers. The special 42CrMo4 raw materials for ring gear forgings is the good reference. This
kind of raw material 42CrMo4 with higher S comtent than the standard, the standard 42CrMo4 only with
around 0.005% S content, but our customer made 42CrMo4 materail with the higher S contents 0.02%
than the standard, the higher S content can improve the machinability, it is the benifits for tools when
broaching the gear rings.
In additionally, according to our customer’s demands, every raw material bars in 42CrMo4 must be
tested by magnetic particle, chemical analysis ,grain sizes , cleanliness and hardenability.
Thanks for our advanced forging equipments and excellent forging techanicals, our company had the
most advantages in the field of ring forging, heavy die forging, stainless steel forging, aluminium forging,
difficult forging parts. We also had kinds of machining equipments in our own workshop, such as lathes,
CNC lathes, milling machines, drilling machines, CNC machining centres,etc.
Try from us, just give your demands and drawings, we will be your right partner.
| Product Name |
Forged Ring Gear |
| Classiffy |
Spur Gear, Helical Gear , Herringbone Gear, Spiral Bevel Gear ,Bevel gear |
| Material |
Medium Carbon Steel: 35#, 45#
Carburizing Steel:20CrMnTi, 20CrMnMo
Alloy Steel:40Cr, 35CrMo, 42CrMo, 40CrNiMo
Cast Iron:HT250,QT400 |
| Standard |
DIN GB ISO JIS BA ANSI |
| Module |
Hobbing up to 40
Gear Milling up to 50 |
| Heat Treatment |
Hardening&Tempering,Surface Quenching,
Integral Quenching,Carburizing Quenching ,Tempering ,
Normalizing,Nitriding |
| Application |
Be widely used in all kinds of transmission, speed changing, rotation and
other civilian or military equipment. |
1. Chemical Compositions Test
2. Mechanical Properties Test (Tensile Strength, Yield Strength, Elongation, Reduction of Area, Impact
Value, Hardness)
3. Non Destructive Test (UT, MT, PT, RT)
4. Dimensional Checking
