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Plastic bearing method for bearing cage

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Putting the vacuum dry granular engineering plastic into the barrel; heating and melting into a semi-liquid state by heating the electric wire; pressurizing by the plunger or the moving screw; writing the semi-liquid material from the nozzle into the forming mold of the injection molding machine; After the insulation and cooling, the required cage is obtained. Its technological features are:
1. The holder is plastically formed at one time; it can obtain accurate shape and scale precision and low surface roughness value; it must be machined; production efficiency is high.
2. Mold and plastic injection molding is simple; bearing installation is convenient; simple automatic control.
3. The plastic cage has outstanding functions such as wear resistance, antimagnetic and low conflict.
However, due to the defects of thermal deformation, aging and brittleness of the plastic itself; and some problems in the layout of the cage and the plastic injection process; the use of the plastic cage is limited.

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