Gear Bearings (GSC-14207)

Abstract:
Goddard's technologies are based on two innovative designs: the roller gear bearing and the phased-shifted gear bearing. The roller gear bearing has crowned roller ends with the roller radius equaling the gear pitch radius. The gear can mesh with another roller gear, with the crowned ends contacting each other in rolling contact. The phase-shifted gear bearing has teeth rotated with respect to each other such that the top land of one side intersects with the bottom land of the other side. In the area where the teeth intersect, the teeth are beveled from the top of the tooth to the root circle. When meshed with another phase-shifted gear, the beveled tooth surfaces contact each other as with four-way thrust bearings. These innovative designs eliminate the need for separate bearings and other parts associated with conventional gearset designs. Given the number of features and benefits these technologies offer, Goddard¿s gear bearings may have potential for a broad variety of applications. For example, precision gearmotors for aircraft actuators or helicopter rotor transmissions could take advantage of the weight and size reductions enabled. The technology may have substantial potential for applications using cast or molded gears since machining is only required for the initial mold or die. Hence, low accuracy/cost applications may find significant cost savings.

Type of Offer: Licensing



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