Sprocket or gear with metal hub

Details Sprocket or gear with metal hub Sprocket or gear with metal hub

1998-05-18

1999-09-07

Graysay, Tamara L.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

Having nonmetallic component

474160, 74434, F16H 5506

Patent

active

059478527

ABSTRACT:
A rotary polymeric torque transfer device such as a vehicle timing chain sprocket wherein the sprocket comprises a polymeric body having homogeneous teeth and torque is transferred to the body by a metal non-insert drive member which includes an inner portion defining a hub, a central portion for receiving fasteners for mounting the sprocket upon shaft support structure, and the drive member outer portion includes torque drive elements cooperating with shoulders defined on the polymeric body radially spaced from the body axis of rotation whereby the transfer of torque between the drive member and the polymeric body occurs adjacent the body periphery radially spaced from the rotation axis to increase the length of the moment arm and reduce the torque forces transmitted between the drive member and the polymeric body to prevent excessive stress and wear between these components.

REFERENCES:
patent: 4078445 (1978-03-01), Kiser, Jr.
patent: 4106357 (1978-08-01), Segawa
patent: 4144773 (1979-03-01), Addicks
patent: 4416650 (1983-11-01), Wilkins
patent: 4453924 (1984-06-01), Sugino
patent: 4760752 (1988-08-01), Wield et al.

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