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FU
Bronze Self-lubricating Bearing

FU-1/2 Powder metallurgy bearings as material is copper powder, iron powder. It is though a combination of mold pressing and sintering, inhale oil in vacuum. It is applied for middle speed, low load location. This is widely used in domestic electric and electronic machines, spinning and weaving machinery, chemical engineering machinery, automobiles and official business machines.

Description

FU-1
FU-1 Bronze Self-lubricating Bearing, is based on tin bronze powder as raw material, through the mold to suppress, after sintering at high temperature shaping. Its matrix has a fine, uniform distribution of the pores, the oil formed by vacuum impregnation. The product has a short-term non-oil lubrication, the use of low-cost, internal and external diameter can be changed and other characteristics, adapted to medium-speed, low load place to use. Products have been widely used in household appliances, power tools, textile machinery, chemical machinery, automotive industry and office equipment and other occasions.
FU-2
FU-2 Bronze Self-lubricating Bearing, is an iron-based powder metallurgy products, due to the role of oil, can prevent bite-axis phenomenon. At low loads, wear resistance similar to copper powder metallurgy is possible. The products are widely used in textile machinery, automobiles, motorcycles and other occasions shock absorption.

Technical Data

Performance   Data
Max Sliding Speed V m/s   2.0
Max PV Value Limit N/mm²·m/s   2.8
Friction Coefficient μ   0.05~0.22
Working Temperature ℃   -100~+200
Thermal Conductivity W/m·K   60
Coefficient of Thermal Expansion   15×10-6/K
Max Load Capacity P Static Load N/mm² 120
Dynamic Load N/mm² 40

Chemical Compositions and Mechanical Properties

Material Type Chemical Compositions Mechanical Properties
Fe C

Cu

Sn Zn Pb Other Density g/cm³ Oill% Press kgf/mm² HB
FU-1 Rest - 18.0~22.0 - - - <0.3 6.0 ≥18 >30 30~60
FU-2 <0.5 0.5~2.0 Rest 5.0~7.0 5.0~7.0 2.0~4.0 <1.5 6.4 ≥18 >15 20~50
FU-3 Rest <0.1 - - - - <3.0 6.0 ≥18 >15 30~60
FU-4 <0.5 0.5~2.0 Rest 8.0~11.0 - - - 6.0 ≥25 >15 25~55

Applications

Powder metallurgy products range from general machinery manufacturing to precision instruments, from hardware tools to large machinery, from electronics industry to motor manufacturing, from civil industry to military industry, and from general technology to advanced technology, Powder metallurgy process figure.

Product Advantages

1、The vast majority of refractory metals and their compounds, pseudo-alloy, porous materials can only be used to manufacture powder metallurgy.
2、As the powder metallurgy method can be pressed into the final size of the compact, without or with little need for subsequent machining, it can greatly save the metal and reduce product costs. When using the powder metallurgy method to produce the product, the loss of metal is only 1-5%, while the general casting method of production, the metal loss may reach 80%.
3、As the powder metallurgy process in the material production process does not melt the material, it is not afraid of mixing into the crucible and deoxidizer and other impurities, and sintering generally in a vacuum and reducing atmosphere, not afraid of oxidation, the material will not give any pollution , It is possible to produce high-purity materials.
4、The powder metallurgy method can ensure the correctness and homogeneity of the material composition.
5、Powder metallurgy suitable for the production of the same shape and the number of products, especially the high cost of processing gear and other products, with powder metallurgy manufacturing can greatly reduce production costs.