Plug Graphite Cast Bronze Bearing Solid Bronze Plate Self Lubricating | How To Realizing The Self-Lubrication
Graphite cast bronze bearings are a type of self-lubricating bearing that incorporates solid bronze plates with graphite plugs to achieve the self-lubricating property. Here's how the self-lubrication is realized in these bearings:
Material Composition: The bearing is made from a bronze alloy which is known for its good wear resistance and strength. The bronze is cast with graphite plugs that serve as a source of solid lubrication.
Graphite as a Lubricant: Graphite is a solid lubricant that has a natural ability to reduce friction between sliding surfaces. When the bearing is in motion, the graphite within the bronze matrix transfers to the contact surfaces, creating a thin, low-friction film that helps to reduce wear.
Initial Break-In Period: During the initial operation of the bearing, there is a break-in period where the transfer of material from the bearing to the mating surface occurs. This is a critical step in establishing the self-lubricating film on the contact surfaces.
Ongoing Transfer Process: After the initial break-in, the transfer process continues dynamically throughout the operational life of the bearing. The graphite continues to be transferred to the mating surface, maintaining a lubricating film that reduces friction and wear.
Maintenance-Free Operation: Unlike bearings that require regular application of external lubricants, graphite cast bronze bearings are designed to be maintenance-free. The graphite within the bronze provides a long-lasting source of lubrication, reducing the need for maintenance and extending the service life of the bearing.
Suitability for Various Applications: Due to their self-lubricating nature, graphite cast bronze bearings are suitable for applications where regular maintenance is difficult or where the environment is harsh, such as in high temperatures, contaminated conditions, or where there is a need for a dry-running system.
In summary, the self-lubrication in graphite cast bronze bearings is achieved through the use of graphite as a solid lubricant within the bronze matrix. This combination allows for a continuous transfer of lubricant to the contact surfaces, ensuring reduced friction, wear, and the need for maintenance.
Wear Plates - Metric size wear plates are made to the standard,Thickness Width Length Material CAD Add to Quote
Available in the following configurations:
·Bronze w/Graphite
·Bronze no Graphite
·Bronze w/Grease Grooves
·Steel w/Graphite
Wear Plates Bronze Wear Plates - Metric - Self Lube Mold and Die Products
How Bronze Bearing Graphite Graphite realizing the self-lubrication?
Solid Bronze Metallic Self-lubricating Spacer Plug Graphite Cast Bronze Bearing Solid Bronze Plate C86300 | VSB-50P
FunctionaI in absence of oiI BRONZE GRAPHITE BUSHINGS Straight Bushings the can be used in circumstances where oiling and greasing is difficult or impossible and they perform excellent Iubrication even under low-speed and high Ioad circumstances.
Since the Iinear expansibility of solid Iubricant is greater than metallic matrix's, when the movement of solid lubricant bearings(VIIPLUS SLIDING BEARING BRONZE GRAPHITE BUSHINGS)start, the Iubricant is transferred onto the parts in abrasion thus realizing the self-lubrication.
| Composition and properties | ||||||||||||||||
| dg | DIN | Material No. delivery form1) |
Designation | ASTM standard | Proportional weights | Physical properties (min.) | ||||||||||
| Standard | Alloy No. |
DIN | ASTM | Density | 0.2% Strain |
Tensile strength |
Strain | Emodulus | Hardness | Application | ||||||
| Symbol | ρ | δy | δT | |||||||||||||
| Unit | % | % | g/cm³ | MPa | MPa | % | MPa | HB | ||||||||
| 01 | 1705 | 2.1090.01 | CuSn7ZnPb | B 584 | C932 00 | Cu 81 - 85 Sn 6 - 8 Zn 3 - 5 Pb 5 - 7 permissible max. portions Ni 2.0 Sb 0.3 |
Cu 81 - 85 Sn 6.3 - 7.5 Zn 2 - 4 Pb 6 - 8 Ni 1 Sb 0.35 |
8.8 | 120 | 240 | 15 | 106.000 | 65 | Standard material for the most applications international standardized |
||
| 2.1090.03 | CuSn7ZnPb | B 271 | C932 00 | 8.8 | 130 | 270 | 13 | 106.000 | 75 | |||||||
| 2.1090.04 | CuSn7ZnPb | B 505 | C932 00 | 8.8 | 120 | 270 | 16 | 106.000 | 70 | |||||||
| 02 | 1705 | 2.1061.01 | CuSn12Pb | not yet standardized | Cu 84 - 87 Sn 11 - 13 Pb 1 - 2 permissible Ni 0.8 - 1.5 max. portions Ni 2.0 Sb 0.2 P 0.2 |
Cu 85 - 88 Sn 10 - 12 Pb 1 - 1.5 |
8.7 | 140 | 260 | 10 | 112.000 | 80 | Material for high loads and/or corrosion stress attack international only partially standardized |
|||
| 2.1061.03 | CuSn12Pb | not yet standardized | 8.7 | 150 | 280 | 5 | 112.000 | 90 | ||||||||
| 2.1061.04 | CuSn12Pb | B 505 | C925 00 | 8.7 | 140 | 280 | 7 | 112.000 | 85 | |||||||
| 03 | 1714 | 2.0975.01 | CuAl10Ni | B 584 | C955 00 | C u min. 75 Al 8.5 - 11.0 Ni 4.0 - 6.5 Fe 3.5 - 5.5 permissible max. portions Mn 3.3 |
Cu min. 78 Al 10 - 11.5 Ni 3 - 5.5 Fe 3 - 5 Mn max. 3.5 |
7.6 | 270 | 600 | 12 | 122.000 | 140 | Material for extreme loads and/or high corrosive environments international standardized |
||
| 2.0975.02 | CuAl10Ni | B 30 | C955 00 | 7.6 | 300 | 600 | 14 | 122.000 | 150 | |||||||
| 2.0975.03 | CuAl10Ni | B 271 | C955 00 | 7.6 | 300 | 700 | 13 | 122.000 | 160 | |||||||
| 2.0975.04 | CuAl10Ni | B 505 | C955 00 | 7.6 | 300 | 700 | 13 | 122.000 | 160 | |||||||
| 04 | 1709 | 2.0598.01 | CuZn25Al5 | B584 | C863 00 | Cu 60 - 67 Al 3 - 7 Fe 1.5 - 4 Mn 2.5 - 5 Zn rest permissible max. portions Ni max. 3 |
Cu 60 - 66 Al 5 - 7.5 Fe 2 - 4 Mn 2.5 - 5 Zn 22 - 28 Ni max. 1 |
8.2 | 450 | 750 | 8 | 115.000 | 180 | Material for highest loads without corrosive attack. international partially standardized to a large extend |
||
| 2.0598.02 | CuZn25Al5 | B 30 | C863 00 | 8.2 | 480 | 750 | 8 | 115.000 | 180 | |||||||
| 2.0598.03 | CuZn25Al5 | B 271 | C863 00 | 8.2 | 480 | 750 | 5 | 115.000 | 190 | |||||||
| 05 | 1705 | 2.1052.01 | CuSn12 | not yet standardized | Cu 84 - 88 Sn 11 - 13 Pb 1 Ni 2.0 Sb 0.2 P 0.2 |
Cu 85 - 88 Sn 10 - 12 Pb 1 - 1.5 Ni 0.8 - 1.5 |
8.6 | 140 | 260 | 12 | 110.000 | 80 | Material with good wear resis- tance. corrosion and seawater resistant international partially standardized |
|||
| 2.1052.03 | CuSn12 | not yet standardized | 8.6 | 150 | 280 | 8 | 110.000 | 90 | ||||||||
| 2.1052.04 | CuSn12 | not yet standardized | 8.7 | 140 | 280 | 8 | 110.000 | 95 | ||||||||
| 1 ) delivery form: .01 = sand casting. .02 = gravity casting. .03 = centrifugal casting. .04 = continuous casting | ||||||||||||||||
VSB-50P PLATE olid Bronze Metallic Self-lubricating Bearings
Solid Lubricant Cast Bronze Bearings Silde Block With Immediate Running Velocity
Metric Bronze Bushings Block Tin-Bronze For Metallurgy / Drying Machine
Cast Bronze Bearing with Graphite Plugs
VSB-50P Sliding PLATE
Copper Cast Bronze Bearings Slide Block Anti Abrasion For Transportation Machines
1. May work without any ol for long period
2. Extremely high load capacity, good anti-wear and lower friction
3. Particularly appropriate for low speed and high load
4. Suitable for reciprocating, oscillation or intermittent motion where oil film is hard to be formed
5. Good chemical resistant and anti-corrosion characteristics
6. Can b€ used in wide range of temperature from -40℃-+300℃
Aluminum-Bronze With Solid Lubricant Casting Bronze Silde Block
Aluminum-Bronze Solid Lubricating Silde Block is backed with Aluminum-Bronze alloy with good capability of mechanics, castings and anti-erosion. The surface of Aluminum-Bronze Solid Lubricating Silde Block is regularly and finely machined with sockets in which particular solid lubricant is filled.
Aluminum-Bronze Solid Lubricating Silde Block is widely used conditions with mediate load but higher temperature and condition with mediate running velocity etc.
The surface of Aluminum-Bronze Solid Lubricating Silde Block is regularly and finely machined with sockets in which particular solid lubricant is filled.
STRUSTURE
VSB-50W WASHER material is made of strong cast bronze based metal with special solid lubricants embedded. The base metal withstands high load and the solid lubricants provide self-lubrication. The bearing shows excellent performance without pre-lubrication under conditions of extreme high/low temperature with low speed. This material provides a maintenance-free bearing solution, particularly for high load, intermittent of oscillating motion.
TECHNICAL DATA
Grade |
50# |
50S1 |
50S2 |
50S3 |
650S5 |
Material |
CuZn25AI5Mn4Fe3 |
CuSn5Pb5Zn5 |
CuAI10Ni5Fe5 |
CuSn12 |
CuZn25AI5Mn4Fe3 |
Density |
8 |
8.9 |
7.8 |
8.9 |
8 |
Hardness |
≥210 |
≥70 |
≥150 |
≥75 |
≥235 |
Tensile strength |
≥750 |
≥250 |
≥500 |
≥270 |
≥800 |
Yield strength |
≥450 |
≥90 |
≥260 |
≥150 |
≥450 |
Elongation |
≥12 |
≥13 |
≥10 |
≥5 |
≥8 |
Coefficient o linear expansion |
1.9×10-5/℃ |
1.8×10-5/℃ |
1.6×10-5/℃ |
1.8×10-5/℃ |
1.9×10-5/℃ |
Max.Temp. |
-40~+300℃ |
-40~+400℃ |
-40~+400℃ |
-40~+400℃ |
-40~+300℃ |
Max.dynamic load |
100 |
60 |
50 |
70 |
120 |
Max.speed(Dry) |
15 |
10 |
20 |
10 |
15 |
N/mm²*m/s(Lubrication) |
200 |
60 |
60 |
80 |
200 |
Compression deformation |
< 0.01 mm |
< 0.05mm |
< 0.04mm |
< 0.05mm |
< 0.005mm |
Chemical Compositions
Product NO. |
Chemical Compositions |
||||||||
VSB-50 |
Cu |
Zn |
Al |
Fe |
Mn |
Si |
Ni |
Sn |
Pb |
60~66 |
22~28 |
5.0~8.0 |
2.0~4.0 |
2.5~5.0 |
<0.1 |
<0.5 |
<0.2 |
<0.2 |
|
AVAILABILITY
Bearing forms available in standard dimensions
· Cylindrical bushes
· Flanged bushes
· Sliding plates
Bearing forms made to order: standard forms in special dimensions, thrust washers, flanged thrust washers, half-bearings, special shapes obtained by stamping or deep drawing, customized bearing designs
TYPICAL APPLICATIONS
This kind of bearing can be applied under dry, high temperature, high pressure, corrosive, water or other chemical environments when no oil can be introduced. It is widely used in automotive products line, water engineering, dam gate, plastic industries, successive casting machines, steel rollers in metallurgy industry, mineral machines, ships, turbo generators, hydraulic turbines and injection molding machines...
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