BR1 series products
BR1S stainless steel special bushing
BR1S stainless steel corrosion-resistant bearing is a very effective corrosion-resistant material, which is made of stainless steel as the matrix, sintered corrosion-resistant alloy powder in the middle, and low friction material mainly made of polytetrafluoroethylene rolled on the surface. It has the characteristics of oil resistance, acid resistance, alkali resistance, seawater resistance and wear resistance. The PTFE material on the surface does not contain lead.
It is most suitable for use in food and beverage machinery, pumps and valves with moderate acid and alkali flow in chemical industry, pharmaceutical machinery, printing and dyeing machinery, chemical machinery, and corrosion resistant sliding parts in marine industry.
Metallographic analysis
1. Polytetrafluoroethylene and lipophilic fiber mixture
2. Spherical bronze powder
3. Stainless steel back
Product characteristics&Application area
Product characteristics
- 1. The mixture of PTFE and lead can form a good transfer film to protect the grinding shaft during movement;
- 2. The sintered layer and copper substrate have good thermal conductivity, which can quickly transfer the heat generated during operation;
- 3. Copper has self-lubricating property and can be used for parts that cannot be shut down for maintenance due to long-term operation;
- 4. The base copper has good corrosion resistance and can be used in weak acid and strong alkali occasions;
- 5. Have good bearing capacity;
- 6. The steel sleeve can be assembled externally; Or it can be made into flanging to achieve the effect of simultaneous use of inner hole and end face;
Application area
- The products have been widely used in metallurgical steel industry, high temperature furnace steel ring parts, cement grouting pumps, screw conveyors, port machinery and ship machinery, etc
| performance index | relevant data | |
|---|---|---|
| Maximum bearing pressure P | Quiet load | 250N/mm2 |
| Move load | 140N/mm2 | |
| Maximum linear speed V | Dry friction | 2.5m/s |
| Oil lubrication | 5m/s | |
| Maximum PV value | Dry friction | 3.6N/mm2·m/s |
| Oil lubrication | 50N/mm2·m/s | |
| Friction coefficient μ | Dry friction | 0.08~0.20 |
| Oil lubrication | 0.02~0.07 | |
| Working temperature | -200℃~+280℃ | |
| Thermal conductivity | 40w/m·k | |
| Coefficient of linear expansion | 12×10-6/k | |
