Foley & Lardner LLP
Bevel gear
A bevel gear 1 has a radius of curvature R of a fillet curve provided between a tooth flank A and a bottom land B gradually increasing from a small-diameter end D1 to a large-diameter end D2. 
Nissan Motor Co., Ltd.
B B B F B Y Y F B
B23H B23H B23H F16H B21K Y10T Y10T F16H B23H
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Hiroshi Yujiro Atsushi Hiroshi
Takano Ohara Hayata Yamashita