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Title:
METHOD AND APPARATUS FOR MANUFACTURING GEAR WITH CROWNING
Document Type and Number:
Japanese Patent JP2011016162
Kind Code:
A
Abstract:

To provide a gear with crowning and a method and an apparatus for manufacturing a gear with crowning which can realize the formation of crowning having an accurate shape with high efficiency and can easily stably ensure high quality.

In a gear with crowning formed by cold forging, tooth tips are formed between both axial ends along a cylindrical face. Pitch circles are formed between both the axial ends along an arcuate curved face. Tooth bottoms are formed between both the axial ends along the arcuate curved face.


Inventors:
TANABE KEIJI
Application Number:
JP2009163660A
Publication Date:
January 27, 2011
Filing Date:
July 10, 2009
Export Citation:
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Assignee:
KONDOO SEIKOO KK
International Classes:
B21K1/30; B21J13/02
Domestic Patent References:
JPH0751788A1995-02-28
JP2009078272A2009-04-16
JPH0332437A1991-02-13
JP2005081391A2005-03-31
JP2007054874A2007-03-08
Attorney, Agent or Firm:
Toru Tanabe