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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/181282
Kind Code:
[Problem] To provide a roller bearing retainer which has the properties of good assembly workability and good maintainability, does not develop a problem regarding strength, etc., due to thinning of a column part, and can eliminate the necessity of bottom enlarging or crimping when the roller bearing retainer is a tapered roller bearing. [Solution] A tapered roller bearing retainer 1 has a shape obtained by connecting a large-diameter ring portion 2 and a small-diameter ring portion 3 via a plurality of column portions 4. The column portions 4 are formed of a center guide section 5, a large-diameter-side end 6 contiguous with the large-diameter ring portion 2, and a small-diameter-side end 7 contiguous with the small-diameter ring portion 3. The center guide section 5 is located on the outer diameter side of the pitch circle diameter of a tapered roller 15, and a pair of the ends 6, 7 are located on the further outer diameter side of the center guide section 5. In a state where the tapered roller 15 is attached to an inner ring 11, locking protrusions 6A, 7A for locking the tapered roller 15 are provided, at diagonal positions of a pocket hole P, to the ends 6, 7 of the column portions 4.

YABUBAYASHI Yasuki (3-3-5, Tenmabashi, Kita-ku, Osaka-sh, Osaka 66, 〒5308566, JP)
FUKADA Shogo (3-3-5, Tenmabashi, Kita-ku, Osaka-sh, Osaka 66, 〒5308566, JP)
HOSOKAWA Tomomi (3-3-5, Tenmabashi, Kita-ku, Osaka-sh, Osaka 66, 〒5308566, JP)
KAMETA Seiji (3-3-5, Tenmabashi, Kita-ku, Osaka-sh, Osaka 66, 〒5308566, JP)
TESHIMA Kenji (3-3-5, Tenmabashi, Kita-ku, Osaka-sh, Osaka 66, 〒5308566, JP)
Application Number:
Publication Date:
September 26, 2019
Filing Date:
February 13, 2019
Export Citation:
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NAKANISHI METAL WORKS CO., LTD. (3-3-5, Tenmabashi Kita-ku, Osaka-sh, Osaka 66, 〒5308566, JP)
International Classes:
F16C33/54; F16C19/36; F16C19/46; F16C43/06
Foreign References:
Attorney, Agent or Firm:
YANAGINO Takao et al. (Noskmard Building, 1-15-1 Miyahara, Yodogawa-ku, Osaka-sh, Osaka 03, 〒5320003, JP)
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