Heavy Engine Parts NT855 Crankshaft OEM 3029340 3608833 6710-31-1110 For Diesel Engine

Cast iron

Alloy steel

Forging steel

CRANKSHAFT STRUCTURE

Material / Tensile Strength - Elongation(L-δ) / Surface hardness (HRC)

1.ball-black lead alloy (Iron mold overhaul) / 800-3～860-5 (Map-%) / 23～28

To improve the crankshaft hardness of surface,it can be through the surface nitriding, hard nitriding, isothermal hardening.
The crankshaft hardness of surface after nitriding is HRC30~40,after hard nitriding is HRC40~50 and after isothermal hardening is HRC45~53.

2.ball-black lead alloy+surface hard nitrided(or HARDENING) / 850-3～900-6 (Map-%) / 40～50

3.Forging steel+ surface nitrided (or HARDENING) / 850-4~900-6(kg-%m㎡) / 45-55

The journal surface is wear resistant,so our crankshaft have sufficient strength and stiffness.

NT855 Crankshaft

NT855 Related Products

—— Guangzhou Hdparts co.,ltd is a private enterprise which been built in 1995, located in the engineering machinery parts distribution center in Guangzhou, for the south of city center, convenient transportation.

—— We have got the approval and trust of many overseas companies . Relying on the continuous supports and sincere suggestions from domestic and overseas customers.

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——For the long term domestic and foreign merchants to provide a wide range of excavator engine parts.

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