ZHEJIANG TOP BEARINGS CO., LTD.
YOUR TOP PARTERNER FOR PLAIN BEARINGS and ROLLING BEARINGS.
Add to Cart
Strengthening Copper With Solid Lubricant Plugs Casting Bronze Bearings
Strengthening Copper + Solid Lubricant Plugs Bearings is backed with strengthening brass 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.
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. Strengthening Copper + Solid Lubricant Plugs Bearings is widely used on consecutive casting and rolling machines, mine-exploiting equipment, ships, steam engine, etc.
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 |
