1.690kg SY300.3-4C Excavator Bucket Bushing A820202003321 for SY365C8I2KS Excavators

Place of Origin China
Brand Name Wearproof
Certification ISO
Model Number SY300.3-4C
Minimum Order Quantity 1 piece
Price Negotiable
Packaging Details wrapping
Delivery Time 1-3 work days
Payment Terms L/C, T/T, Western Union
Supply Ability 10,000 pieces per month

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Product Details
Title 1.690kg SY300.3-4C Excavator Bucket Bushing A820202003321 For SY365C8I2KS Excavators Part Number A820202003321
Part Weight 1.690kg Model Number SY300.3-4C
Dimensions 105×105×97mm Sleeve Application Sany SY365 Excavators
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Product Description

1.690kg SY300.3-4C Excavator Bucket Bushing A820202003321


Product Details                                                                                                                                                                                                      


SY300.3-4C Excavator Bucket Bushing has many nicknames, such as bush, sleeve, shaft sleeve. With the imported CNC lathe, the bush has a smooth surface so that we won’t get hand injury by burrs. What’s more, the systematic production system helps bushings remain firm and hold their shape. Due to supply chains and logistics systems, the goods can be delivered in time, if any mistakes, we guarantee you goods refund or right goods immediately.


Product Advantages


  • All bushings have a full year warranty, which is longer than others in the market.
  • All bushings can be returned or replaced without any reason within 15 days.
  • Customers are provided with samples before making an order if it’s necessary.
  • Customers are welcomed to visit our factory at any time.
  • Customers are given specific and clear online guidance because of professional after-sales service system.

1.690kg SY300.3-4C Excavator Bucket Bushing Of Sany SY365C8I2KS Excavators


Product Parameters

Product Name 1.690kg SY300.3-4C Excavator Bucket Bushing A820202003321  Brand Name Wearproof
Part Number A820202003321 Model Number SY300.3-4C
Product Type SY300.3-4C bucket bushing  Product Material steel
Product Size 105×105×97mm Applicable Industries SY365 Excavators
Product Color dark black Place of Origin China
Supply Ability 35 pieces per month Port of Dispatch Guangzhou
Product Features slippery, durable Samples yes
MOQ 1 piece

Bushing Weight



1.690kg SY300.3-4C Excavator Bucket Bushing A820202003321 for SY365C8I2KS Excavators 0 1.690kg SY300.3-4C Excavator Bucket Bushing A820202003321 for SY365C8I2KS Excavators 1


Product Processes


There are 16 processes for making a shaft sleeve:

cutting stock—forging— quenching and tempering treatment—rough turning—code printer —oil line processing—hardening— temper —coarse and fine grinding for inner bore—excircle grinding—deburring—inspection—pickling—surface conditioning—Phosphating—packing and storage.


Product Operating Principe


  • Gap

There is a certain gap between the pin shaft and the shaft sleeve having a traditional relative motion. The clearance fit is adopted between the pin shaft and the shaft sleeve.

  • Situations

It is difficult to form a stable oil film when the clearance is too small. Direct contact between the two parts leads to greater friction, even machine locking.

When the clearance is too large, it will create a large impact load. These situations will reduce the service life of  these parts.

  • Design

According to the operating principe, a reasonable design of the clearance has a great impact on the use of excavator working.

With thousands of tests, we gain a better design of pin bushings. New bushing tough enough to take abrasion will suffice. So, we gain a longer lifespan bushings.



Packing and Shipping


  • For bushings, a plastic bubble film and a cardboard box are provided to pack goods, which is easy to transport and helps to keep the products intact during transportation.
  • For leadtime, 10000 pieces are produced per month, which is a large stock.
  • For shipping time, every goods will be sent to customers in time. Although shipping time is up to express company, we know an approximate time from different express company, and we will count it into the delivery time. So, our customers could get a precise deadline.




  • goods can be returned or replaced without any reason within 7 days.
  • goods can be replaced within 15 days.
  • warranty is one year.
  • goods has samples.




Q1: Are you trading company or manufacturer?
A: Our management is focused on exporting activities for more than ten years and we have our own bushing factory. Warmsun is always professional and reliable. Our advantages are multiple resource integration, strong quality assurance and excellent service level. We are always responsible for our products.


Q2: Hong long is your delivery time?
A: It depends on the quantity. For a big order, the time is generally 10-25 days after order. For a small order, customers can get goods at once.


Q3: Do you produce samples? Is it free or extra?
A: For standard products, we produce samples free of charge for our customers. And the express costs will be burdened by the customer, but can be returned after the order is placed. For some goods that are inconvenient to transport, the express costs will be burdened by the customer


Q4: How to ensure the quality?
A: We produce as per the confirmed technology or drawings for each order for our customers. And our factory has a strict quality control system. We inspect goods during production according to a certain frequency and we also perform the final inspection before the goods are packed.