The first tooth defines a first tooth profile.

Each tooth lamination of the second tooth includes a second tooth attachment portion and defines a second tooth profile that differs from the first tooth profile.

The relative curvature of the first-tooth profile and the second-tooth profile is given by an expression kc .

The first gear teeth have a non-epicycloide tooth profile and the second gear teeth have an epicycloide tooth profile.

A gear with a Cornu's spiral tooth profile, wherein a Cornu's spiral is used in the tooth profile thereof.

The invention relates to the form of a tooth profile for a rotating disc (10).

A gear set includes a first gear having at least one tooth with a first tooth profile.

In a wave gear device (1), an involute tooth profile with the low pressure angle α (< 20°) is employed as a basic tooth profile of external teeth (11) of a flexible external gear (3).

Since K<1 is satisfied, no cusp (s) is generated at both ends of tooth tips of the tooth profile of the inner rotor (2).

The first tooth profile may comprise a first segment comprising a first plurality of sections.

Also provided is a tooth profile forming method using the device.

Disclosed is a bevel gear with an involute cambered surface tooth profile.

The present invention deals with the analytical definition of a tooth profile for rotors used in gear pumps.

The convex portion is complementary with a corresponding portion of a mating-gear basic-cutter tooth-profile dedendum.

Then, a normal line is drawn from a point on the tooth profile of the obtained re-sharpening pinion cutter to the ideal tooth profile, the length of the leg thereof is obtained, and the obtained length is used as the error of re-sharpening.