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US 2009/0154854 A1Published application
Coreless Seal and Rolling Bearing
AssigneesNtn Corporation, Uchiyama Manufacturing Corp.
InventorsHideki Akamatsu, Kenji Nakagawa
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AssigneesNtn Corporation, Uchiyama Manufacturing Corp.
InventorsHideki Akamatsu, Kenji Nakagawa
Estimating the term…
A coreless seal 11 for being assembled in a shell-type roller bearing provided in a shell-type roller bearing comprises an elastic annular member 12. An outer diameter B of the coreless seal 11 for being assembled in the shell-type roller bearing is a dimension provided by adding interference 2A for an amount of thermal shrinkage to an inner diameter C of a shell-type outer ring. Since the annular member 12 shrinks in a direction shown by an arrow W at low temperature, the outer diameter of the coreless seal 11 for being assembled in the shell-type roller bearing is reduced from B to B′. However, since the outer diameter B is provided with the dimension A obtained by adding interference for an amount of thermal shrinkage, the coreless seal 11 for being assembled in the shell-type roller bearing has interference A′ in its outer diameter B′ even after the shrinkage.
A coreless seal arranged between a rotation shaft and an outer member having an inner diameter surface opposed to an outer diameter surface of said rotation shaft with a space for preventing leakage of fluid, wherein
Dependencies are inferred from the claim text.