Endless belt power transmission systems or components – Positive drive pulley or guide roll
Patent
1994-03-22
1995-01-10
Buiz, Michael Powell
Endless belt power transmission systems or components
Positive drive pulley or guide roll
474162, F16H 5500
Patent
active
053802543
ABSTRACT:
A finished toothed sprocket segment is forged in a cavity of a first die by a second die having a protrusion which extends into the cavity. The sprocket segment has first and second spaced datum pads formed on a first curved surface of a rim of the sprocket which locates the sprocket segment on a hub. The first and second datum pads and first and second apertures are located relative to each other so that distortion of the sprocket segment during final heat treatment does not effect the relative position. As a result the apertures in the hub and sprocket segment are easily aligned during attachment of the sprocket segment to the hub. Since the first die requires no draft angles, the critical surfaces on the sprocket segment are forged to final finish, flatness and tolerance.
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Maguire Roy L.
Vick H. Dale
Woodburn Billy G.
Buiz Michael Powell
Caterpillar Inc.
Hickman Alan J.
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