SF- 1P Reciprocating motion bearings, are based on the structure of the SF-1 material, according to the special conditions a total of reciprocation and design novel formulations, its performance and foreign DD2 similar. Because it does not lead, it is in line with the environmental requirements.
| Max. load | Static | 250N/mm² |
| Very low speed | 140N/mm² | |
| Rotating oscillating | 60N/mm² | |
| Max.PV(dry running) | Short-term operation | 3.6N/mm²•m/s |
| Continuous operation | 1.8N/mm²•m/s | |
| Temp. limit | -195℃~+280℃ | |
| Friction coefficient | 0.05~0.20μ | |
| Max. speed | Dry running | 2m/s |
| Hydrodynamic operation | >2m/s | |
| Thermal conductivity | 42 W(m•k)-1 | |
| Coefficient of thermal expansion | 11×10-⁶•K-1 |
Features
- Design: Based on SF - 1 structure, designed for reciprocating motion
- Performance: Similar to foreign DD2
- Eco - friendly: Lead - free, meets environmental needs
Applications
- Machinery: For equipment with reciprocating - motion parts like engines and compressors
SF-1P is a high-performance self-lubricating composite bearing bushing designed for reciprocating motion and high-load low-speed applications. With bronze matrix and embedded solid lubricant, it can operate stably for a long time without external lubrication, significantly reducing maintenance costs and extending equipment life.
1. Excellent self-lubricating performance
Adopting PTFE/graphite composite lubrication layer, the friction coefficient is as low as 0.04~0.08, no external refueling is required, avoiding the risk of contamination.
Especially suitable for environments with difficult maintenance or limited lubrication (such as food machinery, cleaning equipment).
2. High strength and wear resistance
The bronze matrix (CuSn8P) provides high load-bearing capacity (static load ≥250MPa, dynamic load ≥140MPa).
The surface lubrication layer is evenly distributed, and the wear rate is reduced by more than 50% compared with traditional copper sleeves.
3. Corrosion resistance and wide temperature adaptability
Can withstand -200°C~+280°C temperature range, suitable for extreme working conditions (such as refrigeration equipment, high-temperature transmission systems).
Resistant to chemical corrosion, suitable for humid, acidic and alkaline environments.
4. Reduce overall costs
Maintenance-free design reduces downtime and lubrication costs.
The life span can reach 3~5 times that of ordinary bearings, significantly reducing the replacement frequency.
Why choose SF-1P?
Reduce maintenance: no lubrication is required, saving labor and consumables costs.
Improve reliability: avoid sudden failures caused by insufficient lubrication.
Strong compatibility: can directly replace traditional copper sleeves without structural modification.
Founded in 2014, Shuangnuo has 10 years of experience in the industry.
Strong production capacity ensures that we can organize material production for customers as soon as possible and shorten the production cycle.
There are more than 5,000 cooperative customers around the world.
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Zhejiang Shuangnuo Bearing Technology Co., Ltd. specializes in the production of various self-lubricating copper alloy products such as SF-1P Reciprocating Motion Bronze Self-Lubricating Composite Bearing Bushing.
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