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Key points of roller sealing and manufacturing technology
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Roller seal is divided into steel and plastic. They are sealed with an internal grease. The quality of the rubber roller directly affects the energy consumption and the life of the belt conveyor. Therefore, dustproof seal reliable, good lubrication is an important standard of use.
The roller is divided into two kinds of steel and plastic roller. The bearing seat of the rubber roller is made of three kinds of cast iron and steel plate stamping and phenolic plastic.
Key points of roller manufacturing technology
(1) greater than the technical points of roller bearing seat pressing surplus: the equipment adopts hydraulic machine universal (or simple hydraulic tooling), pressure is 10t; after the experiment, the amount of interference is 0.25 ~ 0.35mm, such as the cylinder wall roughness, need to increase the amount of interference is 20%; the bearing seat adopts small the angle of orientation angle; this process has the advantages of simple operation, high efficiency, quality assurance.
(2) the main technical points of the roller seal: the roller seal is basically a nylon labyrinth seal. Because the nylon has a certain elasticity, the inner ring and the shaft, the outer ring and the bearing seat must be interference fit; labyrinth should be filled with grease, can play a better sealing effect.
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