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CuSn8 Lubrication Diamond Pockets Bushes

CuSn8 Lubrication Diamond Pockets Bushes

Wrapped bushing, bronze, filled graphite lubrication pockets, a solid lubricant. Maintenance-free

The diamond-shaped lubrication pockets are filled with graphite, a solid lubricant.

MATERIALS

  • Support materialCuSn8P (DIN 17662)
  • Lubrication pockets are filled with graphite
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Description

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

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.

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

Bronze 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 the LUB-MET® 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 and are identical to BRO-MET®.

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

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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