Patent ID: 6244413
Filing Date: 2001-06-12
Classification: F16D

Abstract:
A short gearing tooth, for use in particular on toothed wheels of motor vehicle gearboxes, said gearing tooth comprising:a tooth height defined between a tooth base and a tooth tip as viewed along the longitudinal axis of the tooth,said tip being chamfered to form a roof surface having a lower surface,lateral flanks, which are undercut over at least part of their height measured along the longitudinal axis of the tooth, tapering towards the tooth base thereby forming a relief angle ending in a radiused tooth base,a guiding surface having an upper terminus and a lower terminus and a width defined therebetween as measured along the longitudinal axis of the tooth, said guiding surface being formed on said lateral flanks between the lower edge of the roof surface and the undercut section of the lateral flanks and being largely parallel to the longitudinal axis of the tooth, said guiding surface width being smaller than the distance along the longitudinal axis of the tooth from the upper terminus of the guiding surface to the tooth tip, anda supporting surface having a lower terminus and an upper terminus and a width formed therebetween, said supporting surface being formed between the undercut section of the lateral flanks and the radiused tooth base and largely parallel to the longitudinal axis of the tooth.