Patent ID: 8147181

Claim:
An oil control device for inhibiting the flow of oil along a shaft rotating about an axis, the oil control device comprising an annular body for rotation with said shaft and including a first face extending generally radially from said axis, a second radially outer circumferential surface extending generally axially, and an oil slinging groove extending into said body and having a mouth defined between a first circumferentially extending rim and a second circumferentially extending rim, wherein the second rim is spaced both radially and axially from the first rim, the groove is defined at least in part by a first side wall which meets the first rim at an acute angle to a radial plane, and the groove is defined at least in part by a second side wall which meets the second rim at an acute angle to the direction of the axis, wherein the groove further comprises a base, the first side wall extends from the first rim to said base and the second side wall extends from the second rim to said base, the separation between the first and second side walls is less than double the depth of the groove.