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4989436 Alloy steel Forged Crankshaft in engine Cummins 6LT8.9
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4989436 Alloy steel Forged Crankshaft in engine Cummins 6LT8.9

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  Cummins 6LT8.9 Crankshaft 4989436 Alloy steel Forged

 

Description:

 

1. Supply both genuine parts and OEM parts with good price for  Cummins 6LT8.9 Crankshaft 4989436 Alloy steel Forged

 

2. Accept small order and MOQ 1PC

 

3.Short delivery time for 7 days after payment

 


 


 

Applications:

  Cummins 6LT8.9 Crankshaft 4989436 Alloy steel Forged  used for  

Bus, coach, Pick up truck, trailer,truck, tractor

 

marine,boat,

 

excavator,bulldozer,forklift, 

 

Generator

 

Farming machine & Mining machine

 

 

 

 

 

 

 

 

 

 

 

 

 

Competitive Advantage:

 

Large stock for it & delivery time will be 7 days after payment for  Cummins 4BT3.9 Crankshaft 3929036 Alloy steel Forged

 

 

 

Forging and casting

Crankshafts can be forged from a steel bar usually through roll forging or cast in ductile steel. Today more and 

more manufacturers tend to favor the use of forged crankshafts due to their lighter weight, more compact 

dimensions and better inherent damping. With forged crankshafts, vanadium microalloyed steels are mostly 

used as these steels can be air cooled after reaching high strengths without additional heat treatment, with 

exception to the surface hardening of the bearing surfaces. The low alloy content also makes the material 

cheaper than high alloy steels. Carbon steels are also used, but these require additional heat treatment to reach

 the desired properties. Iron crankshafts are today mostly found in cheaper production engines (such as those 

found in the Ford Focus diesel engines) where the loads are lower. Some engines also use cast iron crankshafts

 for low output versions while the more expensive high output version use forged steel.

 

The shaft is subjected to various forces but generally needs to be analysed in two positions. Firstly, failure may occur at the position of maximum bending; this may be at the centre of the crank or at either end. In such a condition the failure is due to bending and the pressure in the cylinder is maximal. Second, the crank may fail due to twisting, so the conrod needs to be checked for shear at the position of maximal twisting. The pressure at this position is the maximal pressure, but only a fraction of maximal pressure

 

Related Products

Brand Engine Model  Part Name Parts Number      
      Alloy steel Forged Length(mm) N.W(KG)
 Cummins ISF2.8 Crankshaft 5264231 5263964 543.5 22
 Cummins ISF3.8 Crankshaft 5261376 5257364 678 32
 Cummins 4BT3.9 Crankshaft 3929036   617 32.5
 Cummins 6BT5.9 Crankshaft 3929037 3942581 857 49.5
 Cummins 6BT5.9 Crankshaft 3917320 3901383 967.5 66.5
 Cummins 6LT8.9 Crankshaft 3965010 3971393 968 76.5
 Cummins 6LT8.9 Crankshaft 4989436      
 Cummins ISDE4 Crankshaft 3974539
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Mr. Dennis Feng
Tel: 86-27-85557477
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Zhonghe Tongda Hubei Mechanical Electrical Equipment Co., Ltd
1-2-1403, Wanjing Guoji, No. 378, Wuhan, Hubei, China (Mainland)
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