Engineering Machinery Parts Hardened Steel Bushings Cylinder Excavator Bushings with high quality and professinal manufacturer (1600671260364)

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Product Overview

Description



Product Description


SN-H Steel Bushing


SN-H Steel Bushing
The inner surface of SN-H steel bushing bearing is processed with various types of oil grooves, which improves the surface hardness and wear resistance after heat treatment. It is suitable for heavy-duty joint parts of construction machinery such as excavators, rotary drilling rigs, large loaders, wall grab and so on.
The steel bushing bearing of our company is based on 45#, 40Cr, 20CrMo, GCr15 and other materials. From raw materials to finished products, each process is strictly controlled to ensure the product quality. It produces bushing with high wear resistance, high surface hardness and strong internal toughness.


Performance Index

Data
Hardness
HRC
58-62
Max Load
N/mm2
250
Max Linear Velocity
m/s
0.1
Max PV Value
N/mm2.m/s
1.5
WorkingTemperature Limit
-100~ +350
Linear Expension Coefficient
10-5/℃
1.1






Optional Material
42CrMo-Super high strength steel

40Cr-Medium carbon quenched and tempered steel
20CrMo/20CrMnTi-Low carbon alloy steel
Gcr15-Bearing steel
45#-Carbon steel





A variety of product materials can be customized
to meet your different product needs




Optional Styles:






Optional Specifications
We can customize the product according to the customer’s drawings, process, tolerance requirements, style and quantity. The following is the processing scope. Please contact pre-sale customer service for specific dimensions.




blind hole oil storage steel bushing



blind hole oil storage steel bushing
The inner surface of the blind hole oil storage steel bushing is sprayed with molybdenum disulfide, which has the advantages of
low friction coefficient and good wear resistance, and can work under the condition without oil or with little oil. Products are
widely used in construction machinery, heavy duty high load equipment.

Process: Multipurpose furnace carburizing
Thickness of carburized layer:1.5-2.0mm
Hardness of carburized layer:HRC60--62
Molybdenum disulfide spraying on inner surface


Performance Index

Data
Hardness
HV
≥650
Max Load
N/mm2
200
Max Linear Velocity
m/s
0.1
Max PV Value
N/mm2.m/s
1.5
WorkingTemperature Limit
-100~ +350
Linear Expension Coefficient
10-5/℃
1.1


Product Advantages
The inner wall of the bushing is evenly distributed with blind holes with conical cross-section.

The lubricating oil wedge is formed naturally during the grinding process of the inner hole of the bushing

The oil storage capacity of oil pocket is large, which is 3~5 times of that of ordinary oil tank and can be free from maintenance for a long time.

The oil pockets are evenly distributed on the inner wall, and the center distance of the oil pockets in the circumferential direction is fixed. No matter how large the bushing is, it only needs a small rotation angle to fill the inner surface of the bushing with the oil cloth, without lubrication dead area.

The oil pockets evenly distributed in the inner holes do not damage the bearing capacity of the inner wall of the bushing and prolong the service life of the bushing.

Material: 20CrMnTi, 20CrMo and other low carbon alloy steels
Surface treatment: Molybdenum disulfide spraying


SN-X Mesh steel bushing




Due to the combination of double surface treatment and special surface morphology, the mesh bushing has excellent wear resistance and seizure resistance. This cross hatch morphology provides a grease reservoir in the load area and can remove abrasive particles. They are suitable for working under harsh working conditions: High pressure, wear, impact and corrosion.
Mesh sleeves are alternatives without cross-hatches. They provide excellent performance under high static loads (low dynamic pressures) and small oscillations (wear resistance and seizure resistance...)


Performance Index

Data
Hardness
HV
≥650
Max Load
N/mm2
200
Max Linear Velocity
m/s
0.1
Max PV Value
N/mm2.m/s
1.5
WorkingTemperature Limit
-100~ +350
Linear Expension Coefficient
10-5/℃
1.1


SN-B Bimetallic composite self-lubricating bushing




The bimetallic self-lubricating graphite copper bushing is based on low carbon steel, and the inner surface is Tin Phosphorus Bronze, the thickness can be customized 0.5-5mm. The ZCuSn10P1 tin-phosphorus bronze has high hardness and wear resistance. It can be used to manufacture parts that work under heavy load, high speed and high temperature, and the copper bushing is subject to strong friction. The surface of the bimetallic self-lubricating graphite bushing is inlaid with a special formula of solid lubricant at a certain angle and density, which is precisely processed, so that the copper bushing has the advantages of high wear resistance, high hardness and high toughness.


Material and bushing 
characteristics

value
Company
value
Maximum load
Mpa
100
psi
145,00
working temperature

-40 to 300
°F
-40 to 572
Max Linear Velocity
m/s
0.5
fpm
100
Maximum PV Value
m/sxMPa
1.65
pis x fpm
48,000
Minimum hardness of sliding layer
HB
210
HB

210
Minimum hardness of dual parts
HRC
40
HRC
40



The bimetallic self-lubricating graphite copper bushing is a novel lubricating bearing with the characteristics of metal bearing and self-lubricating bearing. It is loaded by metal matrix, and the solid lubricating material with special formula plays a lubricating role. It has the characteristics of high bearing capacity, impact resistance, high temperature resistance and strong self-lubricating capability. It is especially suitable for occasions that are difficult to lubricate and form oil membrane, such as heavy load, low speed, reciprocating or swinging, and it is also not afraid of water erosion and erosion of other acids.


Seamless steel pipe products and forging services



We provide various types of finish rolled
seamless steel pipe products
1.Various specifications of steel pipe
2.Various steel pipe materials
3.Large inventory
4.Supply chain stability




Scope of sale



Our products are exported to more than 120 countries and regions, providing supporting services for many well-known construction machinery and equipment manufacturers at home and abroad, and providing OEM/ODM services for nearly 100 trading companies every year.


Production Process


About US
Shandong Sennai Intelligent Technology Co., Ltd. is located in Jinan City, Shandong Province. Its factory is located in Liaocheng, Shandong Province. It is a professional manufacturer of self-lubricating bearing manufacturing-industry and trade enterprise integrating scientific research, production, sales and technical service. It has 15 years of industry experience and global sales channels. It provides supporting services for many well-known construction machinery and equipment manufacturers at home and abroad, and provides OEM/ODM services for nearly 100 trading companies every year.





The factory has vertical and horizontal machining center equipment and professional and technical personnel team, high efficiency, strong comprehensive ability, can complete the shape of complex, high precision requirements of the single processing. And has a perfect staff skills training system, talent selection training plan.


Thickness of carburizing layer:1.0-1.2mm
 Surface hardness:hrc58 - 62
We have a rich cluster of heat treatment equipment, complete solutions to various steel heat treatment problems and rigorous quality control systems. We can heat treat various precision components, and can accurately control the hardening depth and hardness of carburizing. The technicians conduct in-depth experimental research on each work-piece to ensure that the hardness, strength, plasticity and toughness of the different materials are optimized after tempering. Make the metallographic structure tend to be stable and ensure that no deformation occurs in later use process.



Professional QC quality inspection team shall be responsible for the overall work of the department and organize implementation of relevant quality management regulations. Report batch quality problems timely, timely provide the information of unqualified products, and dispose unqualified products to ensure that the product quality meets the requirements.


Product Testing R&D Center




Partner Customers




FAQ



Why choose us?
a. With experiences over 10 years.
b. Strict inspection and high quality with reasonable price.
c. OEM and ODM service provided.
d. Delivery time is short and on-time.
We can give you the direct factory price without broker. Our products are cost-effective with 100% QC quality assurance before shipment. We have our own design team and advanced high-precision machines and testing equipment.

What kinds of products you supply?
Main products are bushing,pin,,shim washers,etc, as per customers' drawings or samples.

Can I have a sample order or trail order?
Yes, it is available to check quality first. Mixed samples are also acceptable.

What about the lead time or delivery time?
In stock: 1-3 days. Usually in 24 hours.
Out of stock: 3-7 days for samples, 3-4 weeks for mass production. It's according to your quantity, and we will let you know when we quote.


What is your payment method?
We accept T/T, Western Union, L/C, credit card or via ALIBABA Assurance order.

Do you support special customized product (OEM or ODM)?
Of course, our company has experienced and professional engineers and possess a number of testing equipment. It can meet all customized requirements of customers while ensuring product quality.


What's your MOQ?
We will indicate the MOQ for each item in the quotation sheet.Normally, our minimum order is USD5000, one 20' full container load and LCL container (less than a container load) can be acceptable.We accept the sample and trial order. If the quantity of single item can't reach the MOQ, the price should be sample price.

What's about the quality of you products?
We are specialized in high quality products and make products according to drawings and samples strictly to meet your 100% satisfaction.


Are you a trader or a manufacturer?
We are a factory-based and trade integration company, always professional and reliable. Our factory is located in Shandong Liaocheng, and our sales department is in the City centre of Jinan. The distance is 150Km, 1.5 hours. Our advantages are multiple resource integration, strong quality assurance and excellent service level. We are always responsible for our products.


How can I be sure the part will fit my machine?
Pls try to give us as much of the following info as possible:
- Correct model number
- Part number
- Machine serial number
- Any numbers on the part itself
- Any measurements you are able to get.
Or just give us drawing.


What about your Quality Control?
We produce as per the confirmed technology or drawings for each order for our customers. We have a perfect QC system for the perfect products. A team who will detect the product quality and specification piece carefully, monitor every production process until packing is complete, to ensure products safety into the container.


May I have my order working schedule?

Yes, we will send working schedule of your order each week. We will inspect and test all merchandise in case of damaging and missing parts before shipment.The detailed inspection pictures of the order will be sent to you for your confirmation before delivery.

Do you like to serve the customers only with small orders?
We are always glad to grow up together with all our customers whatever big or small.
We hope our customers become stronger and stronger to be with us.

What's package of your products?
We can provide standard export package with wooden box or carton, of course, customized package according your requirement is available.


What's the terms of the trasaction?
Usually we adopt EXW or FOB, and FCA, FAS, CIF, CIP, DDP and other method is available as your requirements.

Do you provide free samples?
Yes, usually we provide free samples for testing under the condition of gurantee deposit and freight paid by customer, but can be returned after the order is placed.

How long can I get some samples for checking and what about the price?
Normally samples will be done within 1-2 days (automatic machining parts) or 3-5 day (cnc machining parts). The sample cost depends on all information (size, material, finish, etc.). We will return the sample cost if your order quantity is good.

When inspecting steel bushing, what should we need to consider?
1. Whether the surface treatment is smooth
2. Accuracy
3. Hardness


Your product certifications?
ISO 9001:2008, ISO14001, RoHS

What is the warranty for our products?
One year from the date of leaving the factory, our company is solely responsible for after-sales service for product quality problems that are not caused by improper use, improper storage or human reasons.


1600671260364
0.032 s.