Metal plastic polymer
SF-1P oilless lubrication bearing (reciprocating type)
Substrate properties
Compared with the traditional three-layer composite material, the added high-performance resin provides better anti-magic performance. The thickness of the resin layer is determined according to the actual working conditions, so it can be satisfied by including post-assembly and processing to obtain better tolerance and specific Under the working conditions, it is required to have better anti-magic performance, balanced friction coefficient and longer service life. Typical applications include: engine tensioners, idlers, solenoid valves, cylinder guides, brake systems, etc.
Material organization
1. PTFE / fluororesin layer thickness 0.05 ~ 0.10mm, dry friction, can be reworked to obtain a higher tolerance level.
2. The copper powder layer is 0.20~0.35mm, which has good load-bearing capacity and wear resistance. Good thermal conductivity can transfer the heat generated during the operation of the bearing. The composite material can penetrate into the gap of the copper powder ball to improve the bonding strength.
3. Low carbon steel provides good load bearing performance and heat transfer.
4. The copper/tin plating layer is 0.002mm, which makes it have better corrosion resistance.
Technical Parameters
| Metal plastic polymer SF-1T oilless lubricating bearing (special for gear pump) Product parameters Substrate properties
The SF-1T oilless lubricated bearing (special for gear pump) is a newly developed self-lubricating bearing for high speed and high load. The porous copper powder sintered layer and the special resin lubricating layer are suitable for higher PV values, have lower friction factors and excellent wear resistance. The linear speed can reach 5m/s during rotary motion and the PV value can reach 60N/mm2*m/s. This material is mainly used for working conditions that require lubrication.
Material organization
1. The thickness of PTFE/fiber mixture is 0.01~0.03mm. As a material layer in contact with the grinding shaft, a good transfer film can be formed to protect the grinding shaft, which provides the self-lubricating performance of the bearing.
2. The copper powder layer is 0.20~0.35mm, which has good load-bearing capacity and wear resistance. Good thermal conductivity can transfer the heat generated during the operation of the bearing. The composite material can penetrate into the gap of the copper powder ball to improve the bonding strength.
3. Low carbon steel provides good load bearing performance.
Technical Parameters | Bearer | Static bearing | 250N/mm2 | Coefficient of friction | 0.03~0.20 | | Low speed operation | 140N/mm2 | | Rotation, rocking motion | 60N/mm2 | Line speed | Dry friction | 2m/s | | Fluid lubrication | >m/s | | PV value (dry friction) | Intermittent operation | 3.6N/mm2*m/3 | Thermal Conductivity | 42W(m*K)-1 | | Long-term operation | 1.8N/mm2*m/3 | | Operating temperature | -195℃~+280℃ | Linear expansion coefficient | 11*10-6*K | typical application:
SF-1T oilless lubricating bearing (special for gear pump) is newly developed for high PV value applications under fluid lubrication conditions, mainly used in gear pumps, vane pumps, shock absorbers, gearbox motors, piston pumps, etc. |
typical application
Due to the thick PTFE lubricating layer, SF-1P oilless lubricating bearings (reciprocating type) are mainly used in precision parts such as automobile belt tensioners, pulleys, solenoid valves, air conditioner compressors, and hydraulic pumps．
Oilless sliding bearing refers to a special bearing
Oil-free bearings (oil-free plain bearings) are used for plain bearings. Oil-free lubricated bearings are designed for self-lubricating, oil-free bearings, smooth operation, reliable, and noise-free. Liquid lubrication conditions, separated from the lubricant does not directly contact the sliding surface, you can greatly reduce friction loss and surface wear, this film also has a certain degree of impact absorption.
But greater starting friction. The shaft portion of the bearing is called the shaft diameter portion, called the bush and the shaft diameter go together. In order to improve the friction bearing surface properties of the friction material of the inner surface layer of the casting, it is called a bearing lining.
The materials for the bearings and bearing linings are collectively referred to as bearing materials. Bearing applications typically load conditions, maintenance and lubrication or difficult operating areas at low speeds and weights.
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SF-1T Self Lubricating Bearing For Gear Pump High Precision Long Lifespan Images
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