105mm SY300.3-4C Excavator Bucket Bushing For Sany SY335

Place of Origin China
Brand Name Wearproof
Certification ISO
Model Number SY300.3-4C Excavator Bucket Bushing
Minimum Order Quantity 1 piece
Price Negotiable
Packaging Details wrapping
Delivery Time Within 3 days
Payment Terms L/C, T/T, Western Union
Supply Ability 10000 Pieces per Month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Title SY300.3-4C Excavator Bucket Bush Bushing Weight 1.690kg
Part Number A820202003321 Model Number SY300.3-4C
Application SY335 Excavators Dimensions 105×105×97mm
Bushing Location Rocker - Connecting Rod - Bucket Oil Cylinder Connection
High Light

SY300.3-4C excavator bucket bushing


105mm excavator bucket bushing


105mm steel bushing sleeve

Leave a Message
Product Description

SY300.3-4C Excavator Bucket Bushing 

Product Details                                                                                                                                                                                            

SY300.3-4C Excavator Bucket Bushing, is 1.690kg, 105×105×97mm. For its fuction, the bushing can offer pins with apt protection from corrosion, erosion, and can easily isolate oxygen and they are totally rustproof. For material, 45 chrome steel is used as raw materials from a top-brand steel factory, therefore, customers can get longer life bushings. For more details, please contact us.


Product Advantages


SY300.3-4C Excavator Bucket Bushing is produced by original factories, and we will pack the bushings to our customers.  Generally speaking, our company sells the part of former factory specially, confidence is guaranteed. Of course, we can also produce bushings according to  our customers' requirment. We Hunan Warmsun Engineering Machinery Co. LTD ranks top 10 in China for providing lots of machinery parts. And it is parts manufacturer with decades of experience in construction machinery industry. It has many cooperators with famous machinery brands.


Product Parameters


Product Name SY300.3-4C Excavator Bucket Bushing Brand Warmsun
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 SY335 Excavators
Product Color dark black Place of Origin China
Supply Ability 10000 pieces a month Port of Dispatch Guangzhou
Product Features slippery, durable Samples yes
MOQ 1 piece Bushing Weight 1.690kg


105mm SY300.3-4C Excavator Bucket Bushing For Sany SY335 0


Product Processes


There are 16 processes for making a shaft sleeve:

cutting stock—forging(Flanging set)— 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

  • exquisite and strong packing
  • 18-24 cartons per wood case or pallet
  • shockproof and safe for transportation




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



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.