74mm SY130.3-11 Hardened Steel Sleeve Bushings For Sany SY135 Excavator

Product Specification

0.800kg Steel SY130.3-11 Bucket Bushing For Sany SY135 Excavator Bucket Pin

Product Details                                                                                                                                                                                             

0.800kg SY130.3-11 Bucket Bushing for Sany SY135 Excavators, made by Warmsun, has no air holes. Shaft sleeve is black and looks like a piece of chocolate, smooth, burr-free, so it won't hurt our hands during installation.  

Product Parameters

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

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. 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. The reasonable design of the clearance is very important for the use of excavator working device.

After numerous tests, we have a better design of pin bushings. New bushings is more durable and has a longer working time compared with other factories’ bushings. Therefore, our customers can get better pin bushings.

Product Source

0.800kg steel Bucket Bushing for Sany SY135 Excavator bucket pin, the part name is A820202005381, is produced by Hunan Warmsun Engineering Machinery Co. LTD. Warmsun 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. Bushings can be retail, wholesale and customizable. Many kinds of orders from customers can be receipted.

FAQ                                                                                                                                                                                  

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.