High Strength Copper Alloy With Solid Lubricant Casting Plugs
Bronze Flanged Bearings
JDB Bearing is backed with high strength Copper alloy. The surface is regularly
and finely machined with sockets in which particular solid
lubricant Plugs is filled.
Avoid use in seawater.
JDB Bearing Copper based and processed by turning technics. JDB
Bearing can be made oil grooves on the inner surface and outside
surface to reach a better lubricating effect. By made mid-sized
holes in order and then insert the solid lubricant into the holes
in the Copper bushing to apply the bushings under oil-free
conditions.
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 can be used with rotary, reciprocating shaking motion
and movement.
Diamater 31.5mm-63mm hydraulic cylinder is put on the intermediate
shaft using fresh products.
JDB Bearing is widely used on consecutive casting and rolling machines,
mine-exploiting equipment, ships, steam engine, injection molders
and auto molds, etc.
Chemical Compositions
| Product NO. | Chemical Compositions |
| TOB 051 | Cu | Zn | Al | Fe | Mn | Si | Ni | Sn | Pb |
| 60~65 | 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 | ≥260 |
| Linear Expansion Coefficient | 10^-5/℃ | 1.6-2.0 | Flexibility Coefficient | KN/mm² | 80-120 |
| Heat-conducting Coefficient | W/(m·k) | 38-55 | Tensility | % | ≥2 |
| Tensile Strength | N/mm² | ≥850 | Friction | Oil Lubrication | μ | 0.03 |
| Anti-compact Tenacity | ≥KJ/m^3 | 300-400 | 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 | 130 | 130 | 130 |
| Max. Linear Velocity | m/s | 0.30 | 0.80 | 1.25 |
| Max. PV Value | N/mm²·m/s | 1.65 | 3.25 | 3.25 |
