Rolled bearings are based on high-quality cold-rolled steel plates with porous spherical bronze powder sintered in the middle, and then a mixture of polytetrafluoroethylene (PTFE) and fibers is sintered on the surface of the porous spherical bronze powder layer, and the rolled sliding Bearings.
This product has the characteristics of small friction coefficient, wear resistance, good corrosion resistance and self-lubrication. The use of this product can reduce the cost, reduce the mechanical volume, avoid the occurrence of shaft biting and reduce mechanical noise.
This product has been widely used in various mechanical sliding parts, such as printing machines, elevators, textile machines, tobacco machines, fitness machines, hydraulic vans, micro-motors, solenoid valves, automobiles and agricultural and forestry machinery.
* 1) deburring and flanging the inner and outer diameter chamfering below the inner diameter d10.
2) the chamfering Angle is C0.3 when the inner diameter d is more than 10 and the plate thickness is 1.0.
tetrafluoride resin layer with filler
Bronze sintered layer
Steel metal base
Environment: standard/in oil
Multilayer system: steel, sintered bronze, tetrafluoroethylene
Mounting shaft fit tolerance: e7
Mounting hole fit tolerance: H7
Lubrication condition: no lubrication
Allowable maximum surface pressure P: 49
Permissible maximum speed V: 0.65
Allowable maximum PV value (range) : 2.1 ~ 5.0
Allowable maximum PV value: 3.6
Factors Affecting Life
1: Load P: The larger the load, the shorter the bearing life; in any case, the maximum load must not exceed the theoretical maximum allowable load.
2: Speed V: The higher the speed, the shorter the bearing life; in any case, the maximum sliding speed cannot exceed the theoretical maximum allowable value.
3: PV value: The working life of the bearing depends on the PV value, that is, the product of the actual load P and the sliding speed V. The smaller the PV value, the longer the bearing life.
4: Temperature: The life of the bearing also depends on the temperature at which the bearing is used. The higher the temperature, the shorter the service life of the bearing. Therefore, the heat dissipation characteristics of the relevant components should be considered in the design selection.
5: Surface roughness of the grinding parts: When the grinding parts are made of alloy steel or hard chrome-plated shaft, the bearing life can be significantly improved when the surface roughness Ra=0.4-0.63.
6: Other factors such as bearing housing design, lubrication conditions, etc.