Caterpillar Excavator Hydraulic Pump bearing 5I4478 suitable：E330, E330L, E345B, E345BL
Brand:
ZHZBItem NO.:
5I4478Payment:
T/T ; Western Union; MoneygramWeight：
1KGProduct Origin:
CHINAShipping Port:
Guangzhou,Qingdao,Shanghai,Ningbo,ShenzhenLead Time：
1-2 Work dayCaterpillar Excavator Bearing 5I4478
|
P/N |
5I4478 |
Material: |
GCR15 |
|
i/d |
mm |
O/D |
mm |
|
H |
mm |
Brand： |
ZHZB |
|
Precision |
P0 , P6 , P5 |
Structure: |
Tapered Roller bearing |
| Minimum order quantity | Negotiable | market price | Negotiable |
Product feature:
1. Tapered roller structure, withstand combined radial and axial loads, ideal for complex stress of excavator hydraulic pump.
2. Bearing steel material, high hardness and wear‑resistant, resist frequent impact inside hydraulic pump.
3. Multiple precision grades P0/P6/P5 for different assembly requirements of hydraulic pump.
4. OE spec part No.5I4478, perfect fit for E330, E330L, E345B, E345BL hydraulic pump, direct replacement without modification.
5. Stable operation, reduce pump noise and overheating, protect internal pump components.
6. Light‑weight (1KG), easy for disassembly and maintenance.
Our advantae:
1. Specialized in construction machinery bearings, full coverage for Caterpillar, Komatsu and other brandsZHZB.
2. Strict multi‑step quality inspection before shipment for stable performanceZHZB.
3. Ready stock for 5I4478, fast delivery for small & bulk orders.
4. Competitive price to help clients save procurement cost.
5. Professional technical team, support part selection and after‑sales timely support.
6. Rich export experience, flexible for logistics, packing and marking requirements.
Production Process:
YOUTUBE
Product Photos
Gcr15 steel, withstand combined radial and axial heavy loads.
Multiple precision grades P0, P6, P5 to meet different assembly requirements.
Applied to truck hub, axle and gearbox transmission assembly.
Any other parts for the final drive gearbox system you need pls search from below picture and form list then mark to me we will quote to you
Introduce
5I4478 is a tapered roller bearing, replacement spare part for Caterpillar excavator hydraulic pump, fits E330, E330L, E345B, E345BL.
Made of bearing steel with P0/P6/P5 optional precision grades. It bears combined radial and axial loads, suitable for high‑frequency impact of hydraulic pump. Stable running reduces pump noise and overheating. OE specification for direct replacement. Light weight 1KG, easy for installation and maintenance, minimize machine downtime.
Reluted Produts
Pos.
Part No
Qty
Parts name
1
176-5068
1
NUT
2
5I-4478
1
BEARING AS
3
5I-4480 B
1
SHIM (6.2-MM THK)
4
188-4103
1
BEARING AS
5
184-3958
1
SHAFT-DRIVE (PUMP)
6
142-5520 Y
1
ROTATING GP-PUMP
7
5I-4476
1
PLATE-VALVE
8
5I-4481 B
1
SHIM (6.3-MM)
9
5I-4482 B
1
SHIM (6.4-MM THK)
10
5I-4483 B
1
SHIM (6.5-MM THK)
11
5I-4484 B
1
SHIM (6.6-MM THK)
Factory processing and inventory
Professional charging station logistics | Full range of specifications, rapid response
We support export and accept customization. Global customers are welcome!
Bearing inspection
We place great emphasis on quality control and have established a comprehensive quality inspection system. From raw material warehousing to delivery, every purchase and every bearing undergoes rigorous inspection and testing to ensure that we provide our customers with stable, reliable, and standard-compliant products.
Participating in the 2024 Shanghai bauma Exhibition
At ZHZB, we operate with a comprehensive quality control system at its core. From raw material inspection upon arrival to final product delivery,
every sensor undergoes 100% inspection and accuracy verification, strictly adhering to ISO 9001 and other international standards.
This ensures that we provide reliable bearing components for high-end equipment in industries such as mining, road construction, and wind power.
Delivery：
1.We will send express delivery for less than 45 kg, which is more convenient door-to-door
2.45-200 kg we will choose air transportation, the safest, fastest, and the most expensive
3.For more than 200 kg, we will send it by sea to reduce transportation costs
Why choose us?
Trusted Product: Durable bearing steel materialFAQ
Q1: I want to buy your products, how can I pay?
A: You can contact me through Whatsapp to send bank account to you.
Q2: If we don't find what we want on your website, what should we do?
A: You can email or Whatsapp us the descriptions and pictures of the products you need, we will check whether we have them. We develop new items every month. and some of them have not been uploaded to website in time. Or you can send us sample by express, we will develop this item for bulk purchasing.
Q4: What is the material, is it suitable for hydraulic pump?
A: Made of bearing steel, wear‑resistant and impact‑resistant for high‑frequency impact of excavator hydraulic pump.
Q5: Can it replace original part directly? Any modification needed?
A: Manufactured per OE spec 5I4478, direct fit, no modification required.
Q6: What is the weight of 5I4478?
A: Unit weight 1KG, easy for installation.
Q7: Do you keep stock? What about bulk order lead time?
A: Ready stock for fast delivery, lead time negotiable for bulk quantity.
Q8: Does bearing cause hydraulic pump noise & overheating?
A: It may be caused by worn bearing, incorrect mounting clearance or poor lubrication. Please check bearing and grease.
Warranty
1. Warranty period:A 3-month warranty period is provided for the product from the date of arrival. After the customer arrives, the items should be checked against the order list. Contact us and provide any possible data on the item in question.
2. You need to pay the replacement costs in the following situations:
* Wrong orders from customers.
* Any force majeure causes damage.
* Wrong installation.
* Overtime and overload work on parts.
* Lost due to any circumstances.
* Human factors are destroyed.
* Rust and corrosion during storage and operation.
* The warranty has expired.
3. Other
This kind of product is easy to rust, please pack it and store it properly.
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
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