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Stress and contact pressure analysis of rubber sealing rings and retaining rings based on finite element analysis

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Stress and contact pressure analysis of rubber sealing rings and retaining rings based on finite element analysis

date:[2015-01-17]     pk_hits:

The finite element analysis software MSC.MARC was used to investigate the stress and contact pressure of O-ring rubber seals and retaining rings under different pressures. The relationship between Cauchy stress distribution, contact pressure and contact width, and the relationship between the arc length of the contact between O-ring rubber seals and retaining rings, oil pressure, and contact pressure were discussed under different pressures. The results indicate that the Cauchy stress of the O-ring rubber seal when matched with the retaining ring is mainly concentrated in the upper right and lower left parts of the retaining ring; The contact arc length between the O-ring and the retaining ring initially increases with the increase of oil pressure and finally maintains a certain value; The contact width between the O-ring and the retaining ring is approximately quadratic in relation to the contact pressure.

Retaining rings include: cone pin locking retaining ring, screw locking retaining ring, screw locking retaining ring with locking ring, steel wire retaining ring, hole elastic retaining ring - A type, hole elastic retaining ring - B type, shaft elastic retaining ring - A type, shaft elastic retaining ring - B type, screw fastening shaft end retaining ring, bolt fastening shaft end retaining ring, hole steel wire retaining ring, shaft steel wire retaining ring, etc.

The classification of retaining rings based on their function can be divided into the following products: flat retaining ring: a separable basically flat washer whose inner or outer part is used as an outer ring or inner ring edge guard for centripetal cylindrical roller bearings. Diagonal retaining ring: A separable ring with an L-shaped cross-section, whose outer part acts as the inner retaining edge of a radial roller ball bearing. Middle retaining ring: A separable ring in two or more rows of roller bearings, used to separate and guide each row of rollers. A rib is a narrow shoulder parallel to the rolling direction and protruding from the surface of the raceway, used to support and guide the rolling element and keep it inside the bearing.

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