Joints and connections – Interfitted members – Including separably interposed key
Patent
1994-08-25
1996-07-23
Green, Brian K.
Joints and connections
Interfitted members
Including separably interposed key
403355, 403404, F16B 300
Patent
active
055383556
ABSTRACT:
In a key apparatus having a drive keyway, the drive keyway comprises, a first side wall having a planar inner surface, a second side wall having a planar inner surface, and an end wall having a curvilinear "wave-shaped" inner surface. The first and second side walls are spaced apart, and connected to and extend generally transverse the end wall. The configuration of the drive keyway is very helpful in reducing stress concentration in the gear, and minimizing any motion of the drive key in the axial direction. The present invention is particularly useful in making powdered metal gears for gear pumps, such as hydraulic gear pumps.
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Caterpillar Inc.
Green Brian K.
Khosla Pankaj
Kim Harry C.
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