Active Member
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[China]
Address: Industry Park. JS, ZJ, China. 314100
Contact name:Tiffany
JIAXING VIIPLUS INTERNATIO NAL CO.,LTD |
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Antiseizure Metallic Self-Lubricating Bronze Bushings CSB-820 are a specialized type of bushing designed to provide exceptional lubrication and seizure resistance. These bushings are made of a bronze alloy that incorporates self-lubricating materials, enabling them to operate smoothly even in conditions where external lubrication is limited or unavailable.
The bronze material used in CSB-820 bushings offers excellent strength, wear resistance, and corrosion resistance, ensuring durability and long-term performance. The self-lubricating properties of the material help reduce friction and wear, further extending the bushings' lifespan.
The antiseizure design of these bushings is particularly beneficial in applications where seizure due to lack of lubrication or high temperatures can be a problem. They are able to maintain a stable and reliable operation even under extreme conditions, minimizing the risk of downtime and maintenance issues.
CSB-820 bushings are widely used in a variety of industries, including machinery, automotive, and aerospace, where their ability to operate reliably without the need for frequent lubrication is highly valued. Wh it's in high-speed rotating equipment or heavy-duty industrial machinery, CSB-820 bushings provide a robust and effective solution for antiseizure and self-lubricating needs.
The lead free bronze lead alloys include two different materials. CSB-820 is an alloy with Nickle content and CSB-827 is an alloy with Bismuth content. These materials have low friction coefficients and good wear resistance and they are suitable for lubricated working conditions. To improve the lubricating performance, oil grooves or oil deposits could be optional designs.
1. Lead Free Sintered Bronze Alloy, provides good self lubricating feature and has good fatigue resistance and anti-seizure feature.
2. Steel Backing, provides the mechanical strength of the bearing.
Bismuth bronze or bismuth brass is a copper alloy which typically contains 1-3% bismuth by weight, although some alloys contain over 6% Bi. This bronze alloy is very corrosion-resistant, a property which makes it suitable for use in environments such as the ocean. Bismuth bronzes and brasses are more malleable, thermally conductive, and polish better than regular brasses. The most common industrial application of these metals are as bearings, however the material has been in use since the late nineteenth century as kitchenware and mirrors. Bismuth bronze was also found in ceremonial Inca knives at Machu Picchu.[1] Recently, pressure for the substitution of hazardous metals has increased and with it bismuth bronze is being marketed as a green alternative to leaded bronze bearings and bushings.
The standard sizes are fitted with lubrication indents on the
running surface. For standard bearings is normally the steel
backing copper plated to improve the corrosion resistance. The
layer of lead bronze makes it possible to use these bearings with
relative long lubrication intervals.
Bimetal-bearings can be manufactured with a thicker lead bronze
layer for applications where the bearing has to be machined after
mounting. The material of the layer can be fitted to the special
needs for the application in question.
| Max. Load | Static | 250N/mm² | Alloy Hardness | ≥HB70 | |
| Dynamic | 140N/mm² | Operation Temperature range | -40°C~+ 250°C | ||
| Max. Speed (lubricated) | 2.5m/s | Friction coefficient | 0.05~0.20 | ||
| Max. PV | 2.8N/mm²*m/s | Thermal conductivity | 60W(m*K)-1 | ||
| Tensile Strength | 350N/mm² | Coefficient of thermal expansion | 14*10-6*K-1 | ||
| Usage Range | ||||||||||||||||||
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These materials are suitable for using under middle load and middle to low speed conditions. The good embeddability of the alloy provides anti-dust feature of the bearings. The bearings can be used under dust environment and where containments existed. The typical applications include connection rods, undercarriage rollers, hydraulic cylinder rod eyes, material handling machinery, agriculture machinery, forest machinery and so on.
