TCB50 Solid Lubricating Bearing
Structure Characteristics and Applications
TCB50 series solid lubricating bearing is made of metal base with special solid lubricants embedded by certain angle and density. Customers could choose the base metal of strengthening copper alloy, or cast iron, or steel, and also zinc base alloy according to their application fields. The base metal withstands high load and the solid lubricants provide for self-lubrication. While the bearing running with no oil, the solid lubricants will run out to the working surface by friction heat, and reduce the friction coefficient. The copper alloy material shows excellent performance without pre-lubrication conditions of extreme high/lower temperature with low speed. This material can be applied under dry, high temperature, high pressure, corrosive, water or other chemical environments when no oil can be introduced. Now it’s widely be 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. The substitute material zinc alloy, because its proportion is only 60% of the brass alloy, and using the zinc which is much lower in price than copper alloy as the main element, it greatly reduces the product cost and the weight of the product. This material has excellent antifriction, wear resistance, improving the service life of the mechanical transmission parts, and keeping the machining accuracy. This type of bearing is used for all kinds of construction machinery to replace the traditional copper alloy bearing, plates, and worm wheel, and also used in forging machine, garden machine, water pump, injection molding machine, petroleum, mining, lifting, valve, reduction gears and traction machine with high load, low temperature and low speed environment.
Physical and Mechanical Performance for TCB500
Physical and Mechanical Performance for TCB500
| Performance Index | Data | |
| Max Speed | Dry Lubricationa | 2.8N/mm? ·m/s |
| Oil Lubrication | 10N/mm? ·m/s | |
| Friction Coefficient | Dry Lubricationa | 0.12~0.16μ |
| Oil Lubrication | 0.03~0.08μ | |
| Density | 8g/cm? | |
| Hardness | 210≥HB | |
| Linear Expansion Coefficient | 2.2 10-5/℃ | |
| Heat-conducting Coefficient | 38~55W/(m·k) | |
| Flexibility Coefficient | 100~140KN/mm? | |
| Tensile Strength | 750≥N/mm? | |
| Yeild strength | 340≥N/mm? | |
| Flexibility Coefficient | 100~140KN/mm? | |
| Temperature Limits | -40~+200℃ | |
Specification for TCB508
Specification for TCB508
| Performance Index | Data |
| Base material | ZA27-2 |
| Hardness | HB100~120 |
| Maximum Use Temperature | 80 ℃ |
| Limit Load | 100 N/mm? |
| Friction Coefficient μ | Dry＜0.12 Oil ＜0.03 |
| Maximum Sliding Speed | Dry 0.2M/S Oil 5M/S |
Chemical Compositions
Chemical Compositions
| TCB500 | Cu | Zn | Al | Fe | Mn | Si | Ni | Sn | Pb |
| Rest | 22~28 | 5~7.5 | 2~4 | 2.5~5 | ＜0.1 | ＜0.5 | ＜0.2 | ＜0.2 |
| TCB508 | Zn | Al | Cu | Mg |
| Rest | 25~28 | 2~2.5 | 0.01~0.02 |
Solid Lubricants
Solid Lubricants
| Lubricant | Features | Typical application |
| TCB1 Graphite+add | Excellent resistance against chemical attacks and low friction. Temp limit 400℃. | Suit for general machines and under atmosphere. |
| TCB4+MOS2 PTFE+MOS2+CF |
Lowest in friction and good of water lubrication. Temp limit 300℃. | Ship, hydraulic turbine, gas turbine etc. |
Besides the standard products displayed in the list of this catalogue, we can also supply non-standard products or develop according to customer design.
TCB50 Classification
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TCB 500
TCB500 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 ability in air, fresh water and sea water. The surface is regularly...
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TCB 503
TCB503 Solid Lubricating Bearing is produced by strengthening brass that has good physical performance and good capability for casting. The surface is regularly and finely machined with sockets in which particular solid lubricant is filled. Its material is CuAl10Ni5Fe4...
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TCB 504
TCB504 Solid Lubricating Bearing is produced by strengthening brass that has good physical performance and good capability for casting. The surface is regularly and finely machined with sockets in which particular solid lubricant is filled. Its material is CuSn5Pb5Zn5...
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TCB 505
TCB505 Solid Lubricating Bearing is produced by strengthening brass that has good physical performance and good capability for casting. The surface is regularly and finely machined with sockets in which particular solid lubricant is filled. Its material is CuSn12...
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TCB 506
It is based on cast iron. The solid lubricant is inlayed by certain angle, density and special formula, and then is processed exactly. It is economical product meeting the using requirements. The product is applied to automobile die and injection moulding.
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TCB 507
The basement of this product is 45# steel. The surface is inlayed the special solid lubricant by certain angle and density. The product has high compression resistance, and is mainly used in automobile die.
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TCB 508
It?is based on the squeeze casting zinc base alloy of high strength, punched with orderly and proper size holes in the base, and then embedded oil graphite, or MoS2, or PTFE + graphite +paraffin wax particles as the solid lubrication material. Because its proportion...
Product Classification
TCB10 Self-Lubricating Multilayer Composite Bushing TCB20 Boundary Lubricating Bushings TCB30 Bimetal Bushing TCB40 Oil Sintered Bearing TCB50 Solid Lubricating Bearing TCB60 Steel Bearings TCB70 Spherical plain bearing TCB80 Casting Bronze Bearing TCB90 Wrapped Bronze Bearing TCB-21 Filament Wound High Load Self-lubricating Bearings
