Maintenance-free plain bearings with lubricating plugs big size
Reasons for Selecting Plug Graphite Self-Lubricating Products
The manufacturing process of sintered components is certified as
ecological, because the material waste is very low, the product is
recyclable, and the energy efficiency is good because the material
is not molten.Plug graphite bearings are primarily used in
applications that need continual lubrication in hard to reach
areas. Graphite is mechanically forced into the holes/grooves under
extreme pressure. A film of lubricant is transferred to the shaft
as it begins to turn. These bearings offer continuous lubrication
over long periods without maintenance.
Production Process Casting BRONZE GLEITLAGER BUSHINGS
- injection molding machine Bronze Bearings
- pressure die casting machine Bronze Bearings
- die-casting machine Bronze Bearings
Bronze Gleitlager Main Base Alloy
Material
CuZn25AI5Mn4Fe3
Structure Characteristics and Applications
TOB-50 Solid Lubricating Bearing is produced by strengthening 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
TOB-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
TOB-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 |
| TOB-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 |
Shipment:
Availability
Bearing forms available in standard dimensions
· Cylindrical bushes
· Flanged bushes
· Sliding plates
