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4443881 High performance bushings Excavator Bucket Bushing Suitable for Hitachi 200/200-3/200-3G/200-5G

  • OEM replacement : 4443881
  • Material : 45#/40Cr/42CrMo
  • Applicable models :Hitachi 200/200-3/200-3G/200-5G
Availability:
Quantity:
  • 4443881

>> Product Name

Excavator bucket bushing.


>> Product Use

Connection and support function

Connection components: As the connection element between the excavator bucket and other components (such as boom, dipper rod, etc.), the bucket can be reliably installed on the excavator's working device, ensuring the accurate connection and relative position relationship between the components, so that the bucket can perform various actions according to the design requirements, such as digging, loading, unloading and other operations.

Support load: During the operation of the excavator, the bucket will be subjected to huge digging force, material gravity and various impact loads. The bushing can effectively transfer these loads to the components connected to it and evenly disperse them, playing a supporting and bearing role, ensuring the stability and reliability of the entire working device.

Reducing friction and wear

Reducing friction resistance: The bushing usually has good friction reduction performance, can form a smooth isolation layer between the bucket and the connecting parts, reduce the friction coefficient between the relatively moving parts, make the bucket move more smoothly, reduce energy loss, and improve the working efficiency of the excavator.

Reducing wear: Due to the harsh working environment of the excavator, the bucket and the connecting parts are prone to wear. As a consumable part, the bushing can withstand major wear and tear, protect relatively expensive buckets and other connected parts from excessive wear, extend the service life of these parts, and reduce maintenance costs and equipment downtime.

Buffering and shock absorption

Impact buffering: During excavation operations, strong impact and vibration will occur when the bucket contacts the material. The bushing has a certain elasticity and flexibility, which can buffer the impact, absorb and disperse part of the impact energy, reduce the impact on the excavator structure and other parts, reduce the vibration and noise of the equipment, and improve the operating comfort and overall stability of the equipment.

Shock absorption and noise reduction: By reducing vibration and collision between components, the bushing helps to reduce the noise generated by the excavator during operation and improve the working environment. It is also beneficial to reduce fatigue damage caused by vibration of the equipment and improve the reliability and durability of the equipment.

Certificate


>> The Company's Main Product Display


                                                                            Hitachi pin and bushing
OEM NAME OEM NAME OEM NAME
8102646 PIN 3088753 PIN 4402460 BUSHING
3088573 PIN 3088754 PIN 4443881 BUSHING
3088574 PIN 8125101 PIN 4409122 BUSHING
3088575 PIN 8080936 PIN 4409178 BUSHING
8102957 PIN 3079491 PIN 4723760 BUSHING
3088578 PIN 8096435 PIN 4397790 BUSHING
3088579 PIN 8092014/8090472 PIN 4443885 BUSHING
3088581 PIN 8096448/8080908 PIN 4364501 BUSHING
3088577 PIN 3102467 PIN 4443883 BUSHING
3088580 PIN 3089968 PIN 4434036 BUSHING
8094393 PIN 3092037 PIN 4358100 BUSHING
4359565 PIN 3090417 PIN 4381855 BUSHING
3038444 PIN 3090418 PIN 4630702 BUSHING
3088751 PIN 4352398 BUSHING 4381857 BUSHING
8080781 PIN 4355875 BUSHING 4443884 BUSHING
3076627 PIN 4352399 BUSHING 4724236 BUSHING
3088752 PIN 4352400 BUSHING 4724237 BUSHING
3038448 PIN 4443880 BUSHING 4438771 BUSHING
4443882 BUSHING




    Excavator bushing    


1
2
3
4


    Excavator pin    


2
1
4
3


    Loader bushing    


44
33
22
11


    Loader pin    


1
2
3
4


    Construction machinery pins and bushings    


1
2
3
4


>> Partial Applicable Vehicle Model Display


CAT CAT301.7 CR CAT313 GC CAT323 GX CAT333
CAT301.4 CR CAT312 GC CAT323 CAT374
CAT302 CR CAT326 GC CAT316 GC CAT395
CAT303 CR CAT326 CAT 318D2L CAT352
CAT305.5 CAT320 GX CAT330 CAT355
CAT306.5 CAT320 GC CAT336 CAT330 GC
CAT307.5 CAT320 CAT350
CAT307 CAT323 GC CAT340
KOMATSU PC100-3/5/6 PC200-2/3/5/6/7/8 PC270-6/7/8 PC360-7
PC120-2/3/5/6 PC220-2/3/5/6/7/8 PC290-10/11 PC360LC-10/11
PC130-6/8/11 PC228-1/2/3/8/10/11 PC300LC-1/2/3/5/6/7/8 PC390LC-10/11
PC150-1/3/5/6 PC240-6/8/10/11 PC350-8
PC160-6/7/8 PC250-6 PC350LC-6/8/10/11
SANY SY135C SY75C SY245H-S SY415H-S
SY200C-S SY335BH-S SY95C SY375IDS
SY205C-S SY275H SY485H-S SY550H
SY215E SY235H-S SY485GLC-S
SY215C-S SY155H SY305H-S
KOBELCO SK210LC-10 SK200-10 SK60-8 SK140LC-8
SK130-11 SK250-10 SK380XD-10 SK460-8
SK75-11 SK260LC-10 SK220XD-10
SK350LC-10 SK330-10 SK150LC-11
Hitachi ZX130-6A ZX260K-6A ZX210LC-5A ZX490LCH-5A
ZX240-5A ZX260LCH-5A ZX350-6A Pro ZX220K-6A
ZX250-6A ZX200C-6A ZX360K-5A ZX520LCH-6A
ZX250K-5A ZH200-5A ZX300-6A ZX350-6A
ZX250LC-5A ZX210-6A

ZX300-5A

ZX500LCH-5A
ZX260LC-6A ZX210K-5A ZX370K-6A ZX220LC-6A
ZX195-5A ZX360H-5A ZX370H-6A



>> Product Raw Material

Alloy steel: such as chromium-molybdenum alloy steel, has high strength, high toughness and good wear resistance. It can withstand the huge load and impact force of the excavator bucket during work, is not prone to deformation and breakage, and is suitable for various harsh working environments.

Pin shaft raw materials


Bushing raw materials



4443881 High performance bushings Excavator Bucket Bushing Suitable for Hitachi 200/200-3/200-3G/200-5G

  1.Material selection:

    Select suitable alloy steel, such as chromium-molybdenum alloy steel, to ensure that its chemical composition          and mechanical properties meet the standards

  2. Cutting:

     According to the size specifications of the bushing, use a sawing machine to cut the steel into suitable blanks,        leaving a processing allowance

  3. Rough machining: 

     Turn the outer circle and inner hole on a lathe, and mill the end face on a milling machine to remove most of           the  allowance, leaving a 0.5-1mm allowance for fine machining

 4. Fine machining: 

   Use a grinder to grind the inner and outer circles to ensure dimensional accuracy and surface roughness. The           dimensional tolerance of the inner hole and outer circle is controlled within ±0.01mm, and the surface roughness     reaches Ra0.8-Ra1.6μm

 5. Drilling and tapping: 

   According to the design requirements, use a drilling machine to drill holes and a tapping machine to tap

 6. Quenching: 

   Heat the bushing to above the critical temperature, keep it warm for a certain period of time, and then cool it           rapidly to improve hardness and strength

 7. Tempering: 

   After quenching, heat the bushing to a temperature range below the critical temperature, keep warm and then         slowly cool it to eliminate internal stress and stabilize the structure and size.

 8. Cleaning: 

  Remove oil, iron filings and other impurities on the bushing surface


Manufacturing Process for High-Quality Excavator Pin Shaft



FAQs



Q1: What is the typical application for the High Quality Excavator Bucket Cylinder Upper Pin Shaft?

A1: This pin shaft is specifically designed for excavator bucket cylinders, suitable for high-demand tasks in construction, mining, and heavy machinery operations.


Q2: Can you customize the pin shaft for other machine models?

A2: Yes, we offer full customization services for pin shafts based on your specifications, ensuring compatibility with a wide range of machinery models.


Q3: How do you ensure the durability of your excavator pin shafts?

A3: We use advanced heat treatment processes and high-quality materials to enhance the hardness and wear resistance of the pin shafts, ensuring long-lasting performance.


Q4: What materials are used for manufacturing the pin shaft?

A4: Our pin shafts are made from premium alloys such as 45C, 42CrMo4, and 41Cr4, selected for their durability and ability to withstand heavy-duty use.


Q5: Do you provide after-sales support for your excavator pin shafts?

A5: Yes, we provide comprehensive after-sales support, including product guidance, warranty services, and troubleshooting assistance to ensure continued operation.


Q6: How do I place a custom order for the pin shaft?

A6: Simply provide us with your design drawings or specifications, and we’ll create a customized pin shaft tailored to your exact requirements.


Q7: Can you ship to international locations?

A7: Yes, we can deliver our high-quality excavator pin shafts worldwide, offering efficient shipping and timely delivery to your location.


Q8: Are your pin shafts compatible with other excavator brands?

A8: Our pin shafts are designed for a wide range of excavators, including those from Sany Heavy Industry, but we can also customize them for other brands as needed.

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