self-lubricating bushes composite bearing material developed specifically to operate with marginal lubrication and consists of three bonded layers: a steel backing strip and a sintered porous bronze matrix, impregnated and overlaid with a pigmented acetal copolymer bearing material
CuSn8 Lubrication Diamond Pockets Bushes

CuSn8 Lubrication Diamond Pockets Bushes

Discover our plain bearings: Flange bearings, sleeve bushings, and thrust washers. Customizable bushing materials available. Our products are wear-resistant, maintenance-free, and designed to withstand dirt, dust, and corrosion.

Wrapped bushing, bronze, filled graphite lubrication pockets, maintenance-free

Self-Lubricating Bearings: DIN 17662 CuSn8P Range

Self-lubricating bearings made from CuSn8P (DIN 17662) are renowned for their durability, wear resistance, and low maintenance requirements. These bearings are particularly suited for applications involving high loads and relatively slow movements. Below is a detailed overview of the CuSn8P range, with a focus on flanged self-lubricating bearings.

Material Composition and Properties

CuSn8P is a bronze alloy composed of approximately 92% copper, 8% tin, and a small amount of phosphorus. This composition provides the following properties:

High Load Capacity: The material can handle dynamic loads up to 40 N/mm² and static loads up to 120 N/mm².

Wear Resistance: The alloy’s wear resistance ensures a long service life, even under harsh operating conditions.

Thermal Conductivity: Excellent heat dissipation prevents overheating during operation.

Corrosion Resistance: Suitable for use in environments exposed to various chemicals and saltwater.

Operating Temperature Range: From -40°C to +150°C (-40°F to +300°F).

Design and Features

Flanged self-lubricating bearings made from CuSn8P are designed to provide both radial and axial support. Key features include:

Self-Lubricating: These bearings have lubrication pockets or holes that act as reservoirs, allowing a lubricant film to build up quickly at startup, reducing friction and extending lubrication intervals.

Flanged Design: The flange allows the bearing to withstand axial loads, making it suitable for applications where both radial and axial movements are present.

Maintenance-Free: These bearings require minimal maintenance due to their self-lubricating properties, reducing the need for regular lubrication and maintenance checks.

Applications

CuSn8P flanged self-lubricating bearings are used in various industries, including:

Automotive: For components that require high load-bearing capacity and durability.

Aerospace: Where reliability and resistance to wear and corrosion are critical.

Marine: Due to their excellent resistance to saltwater and harsh environments.

Industrial Equipment: For machinery that operates under high loads and requires minimal maintenance.

Standard Sizes and Customization

These bearings are available in a range of standard sizes, typically from 10 mm to 300 mm in diameter. Custom sizes and designs can also be manufactured to meet specific application requirements. Standard sizes often feature diamond-shaped lubrication pockets covering about 25% of the surface, which helps in maintaining effective lubrication over extended periods.

Conclusion

CuSn8P (DIN 17662) flanged self-lubricating bearings offer a robust solution for high-load, low-maintenance applications across various industries. Their excellent wear resistance, high load capacity, and self-lubricating properties make them an ideal choice for demanding environments.

For more detailed specifications or to explore custom solutions, contacting a specialized supplier like VIIPLUS or Bronzelube can provide tailored advice and products to meet specific needs.

The diamond-shaped lubrication pockets are filled with graphite, a solid lubricant.The dimensions of viiplus bronze graphite thin walled bearings are according to DIN 1494 / ISO 3547.

The bronze bearing type FB090 is a popular choice for various applications. FB090 bearings are made from high-quality bronze materials, typically a combination of copper and tin. They are known for their excellent load-carrying capacity, resistance to wear, and high thermal conductivity.

FB090 bronze bearings are self-lubricating, which means they don’t require additional lubrication during operation. They have solid lubricant plugs embedded in the bearing material, usually graphite or other lubricating compounds. These plugs gradually release lubrication during movement, ensuring smooth operation and reducing friction and wear.

The FB090 bronze bearings are widely used in industries such as automotive, machinery, and heavy equipment. They can be found in applications like gearboxes, hydraulic cylinders, pumps, and other rotating or sliding mechanisms.

These bearings offer several advantages, including:

  1. High load-carrying capacity: FB090 bearings can withstand heavy loads and provide reliable support in various applications.
  2. Excellent wear resistance: The bronze material used in FB090 bearings has good resistance to wear and tear, ensuring a longer lifespan.
  3. Self-lubrication: The embedded solid lubricant plugs eliminate the need for external lubrication, reducing maintenance requirements.
  4. Good thermal conductivity: FB090 bearings have high thermal conductivity, allowing for efficient heat dissipation and minimizing the risk of overheating.

When using FB090 bronze bearings, it’s important to consider factors such as operating conditions, load requirements, and speed limits to ensure optimal performance and longevity. Regular inspection and maintenance are also recommended to monitor the condition of the bearings and address any potential issues promptly.

The FB090 bronze bearing is a type of bearing used to reduce friction and support movement between two surfaces. It is made from a bronze alloy, which offers good wear resistance, stability, and durability.

The FB090 bearing has a smooth inner surface design, allowing it to glide easily over a shaft or axis. It can be used in various industries, including engineering, automotive, energy, and more.

Key advantages of the FB090 bronze bearings include high load capacity, good resistance to wear and corrosion, as well as the ability to operate at high temperatures. They also have good damping properties, which helps to reduce vibration and noise.

FB090 bronze bearings can be supplied in various sizes and configurations to meet the requirements of a specific application. They are typically installed in axial and radial loads and can be used for both static and dynamic loads.

Overall, the FB090 bronze bearing is a reliable and efficient solution for reducing friction and providing smooth movement between two surfaces. It is widely used in various industries and applications where high reliability and durability are required.wrapped bronze bushing

Structure And Composition

Bronze Bearings and Bronze Sleeve Bushings made of CuSn8 ROHS are filled with graphite

Microsection

CuSn8 with
composition
Sn 8 %
P < 0.05 %
Cu Rest

H2ab6cd3e52f848fabfc0ee83e97411f0X.jpg 350x350Bronze Bearing material made of solid bronze strip with indents for lubrication,Material Bronze (CuSn8).Bearing forms available in standard dimensions.
Industry Standards/Compliant Restriction of Hazardous Substances (RoHS) Compliant.

During the installation, grease must be filled in the lubricating chamber on the sliding surface. Lubrication during operation can extend service life.Plain bearing bushing can also provide lubrication slots and holes.The length of the standard bushing can be shortened.We also roll the bushing according to the size you define.

Properties

The FB09G bushings are sliding bushings on a bronze base containing solid lubricant.
Thanks to the good stretching properties of bronze, these sliding bushings can be rolled to have very thin walled thicknesses. Due to the solid lubricant, these bushings are used without any lubricant in gear shafts and similar applications. They are also particularly well-suited for use between clutch discs and the drivetrain.

Product Description

CuSn8 Lubrication Diamond Pockets Bushes which diamond-shaped lubrication pockets are filled with graphite, a solid lubricant. The concept of the CuSn8 Lubrication Diamond Pockets Bushes is derived from  material that has already been in the bearings market for many decades. With every movement of the shaft, tiny particles of the solid lubricant are being evenly distributed over the contact surface between the shaft and bushing. Thus, building up a sliding layer.
CuSn8 Lubrication Diamond Pockets Bushes is a very good upgrade, especially for applications that normally require high greasing intervals (excessively contaminated applications), are difficult to carry out maintenance due to the location or where automated grease lines continuously fail.

It is necessary that an initial greasing is applied during installation to initiate the build-up of the solid lubricant layer.

CuSn8 Lubrication Diamond Pockets Bushes also only can run completely maintenance-free if a non-corrosive shaft material is used.
Otherwise, the shaft would corrode and develop an abrasive sliding surface. This would tremendously decrease the lifespan of the bearing.

The dimensions of CuSn8 Lubrication Diamond Pockets Bushes are according to DIN 1494 / ISO 3547 

Typical applications are for agricultural machinery, brakes and certain construction machinery.

wrapped bronze bushing with graphite

Characteristics

  • Solid copper CuSn8P
  • For lubrication applications
  • Embossed lubricating oil hole
  • Lead free, RoHS compliant

Design

  • Cylindrical bearings
  • Flanged bearings
  • Thrust washers
  • Plates
  • Drawing details

Availability:

Standard cylindrical bushings and flange bushes are available.
Special designs are produced based on your design.
CuSn6.5P0. 1 is also available.

Physical and Mechanical Properties

Value Unit
Density 8.9g cm3
Operating Temperature -100~+200 °C
Hardness ≥110 HB
Load capacity 40 N/mm2

Material: CuSn8P0.3 (DIN ISO 4382-2:1991)

material Cu Sn P
CuSn8P0.3 91.3 8.5 0.3

Tolerance Details

  • Housing ØH7
  • Bushing inner-Ø after mountingH9
  • Shaft tolerancef7

09G Technical Details

TECHNICAL DATA
Max load capacity Specific load capacity static 120N/mm²
Specific load capacity dynamic 40N/mm²
Sliding speed 2.5m/s
Max. PV-value 2.8N/mm² ・m/s
Friction value μ 0.05~0.25
Temperature strain -100℃~+200℃
Coefficient of thermal conductivity 60Wim・K
Coefficient of thermal expansion 15×-6/K
Performance Index
Data
Material
CuSn8P(Qsn8-0.3) + graphite
Density g/cm³
8.8
Max Dynamic Load N/mm²
100
Max Linear Velocity(Grease) m/s
2.5
Max PV value Grease N/mm²·m/s
2.8
Pressure strength N/mm²
>460
Yield Strength N/mm²
>280
Hardness
90~150
Mating Axis
Hardness
≥50
Roughness
0.4~1.0
Working Temperature ℃
-40~150
Friction Coefficient
0.06~0.1
coefficient of heat conduction W/m·K
58
Linear expansion coefficient
18.5×10-6/K
Typical application
Hoisting, mining machinery,
forest machinery, agricultural machinery etc.
We can also develop according to customers special request while out of this table

Bronze Bearings Application

Bronze bearing for agricultural machinery, brakes and certain construction machinery.

The plain bearing bushing is made to DIN ISO 3547.092 bronze bushing is based on bronze CUSN8 and evenly distributed drilling oil hole on its sliding surface. When in assembly, oil or grease should be stored in the holes before bushing is sealed form both ends. 092 bronze CuSn8 material has the advantage of abundant oil storage, easy-to-assembly ,machine the compactness etc. It can replace the conventional whole copper middle load, low speed such as in convey machine, hoisting machine, windlass, aligning machine etc.

Standard Dia. Bushing
O.D.Size
Housing Bore Bushing
I.D.Size
Matching Shaft Diameter
10~18 +0.065
+0.030
+0.018
0
+0.046
0
– 0.016
– 0.043
18~30 +0.075
+0.035
+0.021
0
+0.052
0
– 0.020
– 0.020
30~50 +0.085
+0.045
+0.025
0
+0.062
0
– 0.025
– 0.064
50~80 +0.100
+0.055
+0.030
0
+0.074
0
– 0.030
– 0.076
80~120 +0.120
+0.070
+0.035
0
+0.087
0
– 0.036
– 0.090
120~180 +0.170
+0.100
+0.400
0
+0.100
0
– 0.043
– 0.106
180~250 +0.210
+0.130
+0.046
0
+0.115
0
– 0.050
– 0.122
250~315 +0.260
+0.170
+0.052
0
+0.130
0
– 0.056
– 0.137

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