US 12,251,750 B2
Method for forming a front toothing on an inner ring of a wheel hub and associated equipment
Laura Sguotti, Bricherasio (IT); Stefano Galfre, Pinerolo (IT); and Davide Antonio Olivieri, Turin (IT)
Assigned to AKTIEBOLAGET SKF, (SE)
Filed by AKTIEBOLAGET SKF, Gothenburg (SE)
Filed on Sep. 14, 2023, as Appl. No. 18/368,293.
Application 18/368,293 is a division of application No. 17/712,257, filed on Apr. 4, 2022, granted, now 11,806,775.
Claims priority of application No. 102021000008984 (IT), filed on Apr. 12, 2021.
Prior Publication US 2024/0001429 A1, Jan. 4, 2024
Int. Cl. B21D 53/10 (2006.01); F16C 19/18 (2006.01)
CPC B21D 53/10 (2013.01) [F16C 19/183 (2013.01); F16C 2326/02 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of forming a front toothing defined by a plurality of radial teeth on a ring of a wheel hub, the method comprising:
a first impressing upon an axial end of an annular collar of the ring a first toothing profile defined by a plurality of radial imprints separated by radial reliefs having a rounded circumferential profile, the first impressing performed using a first tool having a first plurality of annularly arranged first knives each one of the first plurality of annularly arranged first knives defining a first forming end, the plurality of first knives being slidably and individually movable in a direction parallel to an axis of symmetry of the annular collar, the first forming ends of the plurality of knives defining a first predetermined profile that is a reverse of the first toothing profile;
a second impressing upon the axial end of the annular collar of the ring a second toothing profile defining flank structures, the second impressing performed using a second tool having a second plurality of annularly arranged second knives each one of the second plurality of annularly arranged second knives defining a second forming end, the second plurality of second knives being slidably and individually movable in the direction parallel to the axis of symmetry of the annular collar, the second forming ends of the second plurality of second knives defining a second predetermined profile that is a reverse of the second toothing profile, wherein during the second impression the second knives are impressed inside the radial imprints thereby forming the front toothing.