Strengthening Copper With Solid Lubricant Plugs Casting Bronze
Bearings with Flange
JDB Bearing is backed with strengthening Copper that has good physical
performance and good capability for casting.
JDB Copper Bearings is a special formulation of high strength
copper-based body surface at a certain angle and density of
embedded solid lubricant specially formulated by precision
machining.
JDB Bearing is widely used on consecutive casting and rolling machines,
mine-exploiting equipment, ships, steam engine, etc.
Avoid use in seawater.
Strengthening Copper + Solid Lubricant Plugs Bearings with Flange
can be used with rotary, reciprocating shaking motion and movement.
Embedded in the falnge part because there is no lubricant, not
axial load.
What’s more, the Copper backing has pretty good anti-erosion
ability in air, fresh water and seawater. The surface is regularly
and finely machined with sockets in which particular solid
lubricant is filled.
Diamater 31.5mm-63mm hydraulic cylinder is put on the intermediate
shaft using fresh products.
Chemical Compositions
| Product NO. | Chemical Compositions |
| TOB 050 | 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 |
Physical and Mechanical Performance
| Performance Index | Data | Performance Index | Data |
| Density | g/cm³ | 8.2 | Hardness | HB | ≥210 |
| Linear Expansion Coefficient | 10^-5/℃ | 1.6-2.0 | Flexibility Coefficient | KN/mm² | 120-140 |
| Heat-conducting Coefficient | W/(m·k) | 38-55 | Tensility | % | ≥12 |
| Tensile Strength | N/mm² | ≥755 | Friction | Oil Lubrication | μ | 0.03 |
| Anti-compact Tenacity | ≥KJ/m^3 | 400-500 | Dry Friction | 0.16 |
Application Condition Limits
| Lubrication Conditions | Non- Lubrication | Periodical Lubrication | Consecutive Lubrication |
| Working Temperature Limits | ℃ | -40~+300 | -40~+150 | -40~+150 |
| Max. Load pressure | N/mm² | 100 | 100 | 100 |
| Max. Linear Velocity | m/s | 0.50 | 1.00 | 1.50 |
| Max. PV Value | N/mm²·m/s | 1.65 | 3.25 | 3.25 |
