High-strength graphite sleeve bearings paired with an H7 pulley
bushing assembly offer a unique combination of durability,
precision, and efficiency. Graphite, as a material, is known for
its excellent wear resistance, self-lubricating properties, and
high-temperature stability. These qualities make graphite sleeve
bearings particularly suitable for demanding applications that
require a high degree of reliability and longevity.
The H7 pulley bushing assembly complements the graphite sleeve
bearings by providing a precise fit and ensuring smooth rotation.
The H7 tolerance class specifies a relatively tight fit, which
helps maintain stability and minimize vibration during operation.
The assembly also allows for easy installation and disassembly,
facilitating maintenance and repair.
When combined, the high-strength graphite sleeve bearings and H7
pulley bushing assembly create a robust and dependable bearing
system. This system is capable of handling heavy loads, high
speeds, and frequent starts and stops, making it suitable for a
wide range of industrial applications.
Overall, the use of high-strength graphite sleeve bearings paired
with an H7 pulley bushing assembly represents a smart choice for
those seeking a bearing system that offers both superior
performance and long-term reliability.
Cast Bronze Bushings
We produce sleeve bushing and sliding bearing in Tin Bronze,
Aluminum Bronze, and Manganese Bronze bushes from china. To import and export the Plain Bearings we provide in cheap price,
just contact us online by email.
Sleeve And Flanged Bronze Bushing For Metallurgical Machinery.
Mining Machinery, Injection Mould Machines, Marine, Turbine, Gas
Turbine, Automotive Punch Molding Industries Etc
Bronze graphite Lubrication bushings H7 pulley assembly bush cast
iron pulley bushing boccole | VSB-50
VIIPLUS manufactures and sell a wide range of pulleys bushings usued for
differents sectors, such as agricultural machines (shredders
bushings and discs mower bushings), weaving machines and automation
sectors generally.
The range inlcudes: pulleys bushings belt pulleys
Thanks to flexibility and experience combined with an in-depth
knowledge of the technological processes, VIIPLUS can fulfil any
customer requirement.
VSB-50 Solid Bronze Metallic Self-lubricating Bearings
Cast Bronze Bearing with Graphite Plugs
Material
CuZn25AI5Mn4Fe3

Structure Characteristics and Applications
VSB-50 Solid Lubricating Bearing is produced by streng thening brass that has good physical performance and good capability for casting. What's more, the brass material has pretty good anti-erosion abitity in air, fresh water and sea water. The surface is
regularly and finely machined with sockets in which particular
solid lubricant is filled. The product is widely used on
consecutive casting and rolling machines, mine-exploiting
equipments, ships, steam engine, etc.
Solid Lubricant Casting Aluminum Bronze Bearings Bushings
Characteristics
with Solid Graphite Lubrication. Various material specifications,
standard and special shapes are also available
VSB-50 Solid lubricating bearings
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℃
Strusture
VSB-50 SOLID LUBRICANT SLIDING BEARINGS 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...
Products are widely used in continuous casting machines, mining
machinery, ships, gas turbines and so on.
Hydraulic Cylinder Casting Bronze Flange Bearing With Solid
Lubricant
China Bearing Technologies
Your recognised global partner for sliding bearing applications.
Working tog to create solutions for the most demanding bearing
applications.
Customer Size
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