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TECHNICAL PAPERS

An Approach to the Determination of Spur Gear Tooth Root Fillet

[+] Author and Article Information
V. B. Math

Mechanical Engineering Department, Basaveshwar Engineering College, Bagalkot-587 102, Indiae-mail: vbmath@rediffmail.com

Satish Chand

Mechanical Engineering Department, M. N.N.I.T, Allahabad-211 004, Indiae-mail: satishchand@rediffmail.com

J. Mech. Des 126(2), 336-340 (May 05, 2004) (5 pages) doi:10.1115/1.1666891 History: Received May 01, 2001; Revised July 01, 2003; Online May 05, 2004
Copyright © 2004 by ASME
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References

Colbourne, J. R., 1987, The Geometry of Involute Gears, Springer-Verlag, Berlin.
Merritt, H. E., 1971, Gear Engineering, Pitman, London.
Pedrero,  J. I., Rueda,  A., and Fuentes,  A., 1999, “Determination of the ISO Tooth Form Factor for Involute Spur and Helical Gears,” Mech. Mach. Theory, 34, pp. 89–103.
Mitchiner,  R. G., and Mabie,  H. H., 1982, “The Determination of the Lewis Form Factor and the AGMA Geometry Factor J for External Spur Gear Teeth,” ASME J. Mech. Des., 104, pp. 148–158.
Mitchiner,  R. G., Mabie,  H. H., and Moosavi-Rad,  H., 1983, “The Undercutting of Hobbed Spur Gear Teeth,” Trans. Autom., 105, pp. 122–128.
Xiaogen,  Su, and Houser,  D. R., 2000, “Characteristics of Trochoids and Their Application to Determining Gear Teeth Fillet Shapes,” Mech. Mach. Theory, 35, pp. 291–304.
Salamoun,  C., and Suchy,  M., 1973, “Computation of Helical or Spur Gear Fillets,” Mech. Mach. Theory, 8, pp. 305–323.
Litvin, F. L., 1994, Gear Geometry and Applied Theory, Prentice Hall Inc., New Jersey.
Buckingham, E., 1963, Analytical Mechanics of Gears, Dower, New York.

Figures

Grahic Jump Location
Coordinates of arbitrary point “D” on the root fillet of gear tooth cut by a hob with rounded tip corners (Fig. 1(c))
Grahic Jump Location
Coordinates of point of tangency(Point G) or point of intersection (Point F) of root fillet and involute profile
Grahic Jump Location
Fillet generation with protuberance tool
Grahic Jump Location
Coordinates of an arbitrary point on involute segment in the root fillet
Grahic Jump Location
Comparison of coordinates of root fillet
Grahic Jump Location
Coordinates on the root fillet of undercut gear

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