Product Description
| Performance Index | Data |
| Product Name | TEHCO CNC Machining Casting Bronze Bearing Bushing With Different Kinds of Oil Grooves for Agriculture and Crane Machine Bushing |
| Material | CuZn25Al5Mn4Fe3/CuSn8P/H59, etc |
| Typical application | Machine-tool, agricultural machinery, crane electromotor, spring pin, steering shaft and transmission, etc. |
| Density g/cm3 | 8.7 |
| Max Dynamic Load N/mm2 | 60 |
| Max Linear Velocity(Grease) m/s | 0.85 |
| Max PV value Grease N/mm2·m/s | 1.65 |
| Pressure strength N/mm2 | >240 |
| Mating Axis | Hardness | ≥40 |
| Roughness | 0.4~1.0 |
| Working Temperature ºC | 40~140 |
| Friction Coefficient | 0.09~0.15 |
| coefficient of heat conduction W/m·K | 52 |
| Linear expansion coefficien | 18.5×10-6/K |
| Yield Strength N/mm2 | >100 |
Copper sleeves, also known as copper shaft sleeves, are divided into various types, including machine copper rollers, copper bearings, etc. Used in various light, large, and heavy machinery, it is an important component of machinery. The product has the traditional function of tin bronze bearings, using electrolytic copper as the raw material and various trace metal elements. It is sintered at high temperature and processed by air pressure centrifugal casting. High hardness, excellent wear resistance, less prone to biting, good casting and cutting performance, and good corrosion resistance in the atmosphere and fresh water. In the absence of lubricants and the use of water-based lubricants, the sliding and self-lubricating properties are good, easy to cut, poor casting performance, and good corrosion resistance to dilute sulfuric acid. General purpose structural components, castings with simple appearance used in ships, instruments, etc., such as sleeves, bushings, bearing shells, sliding blocks, etc.
Chemical component
| Grade | Chemical composition (mass fraction)(%) |
| Cu | Pb | Fe | Zn | other elements |
| C21000 | 94.0-96.0 | 0.03 | 0.05 | margin | - |
| C22000 | 89.0-91.0 | 0.05 | 0.05 | margin | - |
| C22600 | 86.0-89.0 | 0.05 | 0.05 | margin | - |
| C23000 | 84.0-86.0 | 0.05 | 0.05 | margin | - |
| C23030 | 83.5-85.5 | 0.05 | 0.05 | margin | Si0.20-0.40 |
| C23400 | 81.0-84.0 | 0.05 | 0.05 | margin | - |
| C24000 | 78.5-81.5 | 0.05 | 0.05 | margin | - |
| C24080 | 78.0-82.0 | 0.20 | - | margin | Al0.1 |
| C26000 | 68.5-71.5 | 0.07 | 0.05 | margin | - |
| C26130 | 68.5-71.5 | 0.05 | 0.05 | margin | As0.02-0.08 |
| C26200 | 67.0-70.0 | 0.07 | 0.05 | margin | - |
| C26800 | 64.0-68.5 | 0.15 | 0.05 | margin | - |
| C27000 | 63.0-68.5 | 0.10 | 0.07 | margin | - |
| C27200 | 62.0-65.0 | 0.07 | 0.07 | margin | - |
| C27400 | 61.0-64.0 | 0.10 | 0.05 | margin | - |
| C28000 | 59.0-63.0 | 0.30 | 0.07 | margin | - |
| C31200 | 87.5-90.5 | 0.7-1.2 | 0.10 | margin | Ni0.25 |
| C31400 | 87.5-90.5 | 1.3-2.5 | 0.10 | margin | Ni0.7 |
| C31600 | 87.5-90.5 | 1.3-2.5 | 0.10 | margin | Ni0.7-1.2,P0.04-0.10 |
| C32000 | 83.5-86.5 | 1.5-2.2 | 0.10 | margin | Ni0.25 |
| C33000 | 65.0-68.0 | 0.25-0.7 | 0.07 | margin | - |
| C33200 | 65.0-68.0 | 1.5-2.5 | 0.07 | margin | - |
| C33500 | 62.0-65.0 | 0.25-0.7 | 0.15 | margin | - |
| C34000 | 62.0-65.0 | 0.8-1.5 | 0.15 | margin | - |
| C34200 | 62.0-65.0 | 1.5-2.5 | 0.15 | margin | - |
| C34500 | 62.0-65.0 | 1.5-2.5 | 0.15 | margin | - |
| C35000 | 60.0-63.0 | 0.8-2.0 | 0.15 | margin | - |
| C35300 | 60.0-63.0 | 1.5-2.5 | 0.15 | margin | - |
| C35330 | 59.5-64.0 | 1.5-3.5 | - | margin | As0.02-0.25 |
| C35600 | 60.0-63.0 | 2.0-3.0 | 0.15 | margin | - |
| C36000 | 60.0-63.0 | 2.5-3.7 | 0.35 | margin | - |
| C36500 | 58.0-61.0 | 0.25-0.7 | 0.15 | margin | Sn0.25 |
| C37000 | 59.0-62.0 | 0.8-1.5 | 0.15 | margin | - |
| C37100 | 58.0-62.0 | 0.6-1.2 | 0.15 | margin | - |
| C37700 | 58.0-61.0 | 1.5-2.5 | 0.30 | margin | - |
| C37710 | 56.5-60.0 | 1.0-3.0 | 0.30 | margin | - |
| C38000 | 55.0-60.0 | 1.5-2.5 | 0.35 | margin | Sn0.30,Al0.50 |
| C38500 | 55.0-59.0 | 2.5-3.5 | 0.35 | margin | - |
FAQ
1.Who are we?
We are based in Shandong, China, start from 2021,sell to North America(20.00%),Eastern Europe(10.00%),Southeast Asia(10.00%),South America(5.00%). There are total about 11-50 people in our office.
2. How do you control the quality?
We have professional inspectors to analyze chemical composition of raw materials and test the finished products strictly according to standard stipulated in the contract. In this process, Internal and external surfaces, two ends appearance, bending degree, fixed length, outer diameter and wall thickness dimension etc will be checked one by one. You can be assured that all the products you get from us are reliable.
3.Can you accept customization?
Yes. If you have special requirements on products or packages, we can do customization for you.
4. Why should you buy from us not from other suppliers?
We are a factory setted up more than 20 years and export more than 15 years. we have ISO 9001 certificate. Professional team to create accurate data.
5.What services can we provide?
Accepted Delivery Terms: FOB,FCA,DDP,DDU; Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,PayPal,Western Union;
Acceptance port of delivery: Tianjin, Qingdao, Guangzhou, Shanghai, etc
Language Spoken:English,Chinese
6.How can we get your price ?
We need below information to quote for you:
Product Name
Standard
Material Grade (Chemical Composition)
Dimension
Quantity
The Drawing for Special Parts
Copper sleeves, also known as copper shaft sleeves, are divided into various types, including machine copper rollers, copper bearings, etc. Used in various light, large, and heavy machinery, it is an important component of machinery. The product has the traditional function of tin bronze bearings, using electrolytic copper as the raw material and various trace metal elements. It is sintered at high temperature and processed by air pressure centrifugal casting. High hardness, excellent wear resistance, less prone to biting, good casting and cutting performance, and good corrosion resistance in the atmosphere and fresh water. In the absence of lubricants and the use of water-based lubricants, the sliding and self-lubricating properties are good, easy to cut, poor casting performance, and good corrosion resistance to dilute sulfuric acid. General purpose structural components, castings with simple appearance used in ships, instruments, etc., such as sleeves, bushings, bearing shells, sliding blocks, etc. 
