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A process for making ratchet wheels includes a step of providing a work with a first end and a second end, a step of punching the work by means of a punch so as to define a large recess through the second end, a step of cutting away the first end of the work, a step of defining two annular grooves i

A process for making ratchet wheels includes a step of providing a work with a first end and a second end, a step of punching the work by means of a punch so as to define a large recess through the second end, a step of cutting away the first end of the work, a step of defining two annular grooves in a periphery of the work and a step of forming a plurality of teeth on the work. The process may include, before the step of cutting away the first end of the work, a step of punching the work in order to define a small recess with a diameter smaller than that of the large recess, a step of punching the work so as to define an opening with a diameter smaller than that of the small recess wherein the opening extends through the first end of the work. The process may include a step of defining a shallow recess in the second end of the work before the step of defining the large recess.

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1. A process for making ratchet wheels including a step of providing a work (10) with a first end (11) and a second end (12), a step of punching the work (10) by means of a punch so as to define a large recess (13) through the second end (12), a step of cutting away the first end (11) of the work (1

1. A process for making ratchet wheels including a step of providing a work (10) with a first end (11) and a second end (12), a step of punching the work (10) by means of a punch so as to define a large recess (13) through the second end (12), a step of cutting away the first end (11) of the work (10), a step of defining two annular grooves (41, 42) in a periphery of the work (10) and a step of forming a plurality of teeth (51) on the work (10). 2. The process according to claim 1 including, before the step of cutting away the first end (11) of the work (10), a step of punching the work (10) in order to define a small recess (15) with a diameter smaller than that of the large recess (13), a step of punching the work (10) so as to define an opening (16) with a diameter smaller than that of the small recess (15) wherein the opening (16) extends through the first end (11) of the work (10). 3. The process according to claim 1 including a step of defining a recess (111) in the first end (11) of the work (10) before the step of defining the large recess (13). 4. The process according to claim 1 including a step of defining a recess (121) in the second end (12) of the work (10) before the step of defining the large recess (13). 5. The process according to claim 1 including a step of forming a chamfer (112) at the first end (11) of the work (10). 6. The process according to claim 1 including a step of forming a chamfer (122) at the second end (12) of the work (10). 7. The process according to claim 1 wherein the two annular grooves (41, 42) are defined by means of a CNC lathe. 8. The process according to claim 1 wherein the teeth (51) formed by cutting a number of grooves in a periphery of the work (10). 9. The process according to claim 1 wherein the punch (20) includes six corners (21), six facets (22) separated from one another by means of the corners (21) and six ridges (23) each formed on one of the facets (22), and the ridges (23) are similar to the corners (21) except for being shorter. 10. The process according to claim 1 wherein the punch (60) includes four corners (61), four facets (62) separated from one another by means of the corners (61) and four ridges (63) each formed on one of the facets (62), and the ridges (63) are similar to the corners (61) except for being shorter. 11. The process according to claim 1 wherein the punch (70) includes eleven long ridges (71) and a short ridge (73) evenly formed thereon. 12. The process according to claim 1 wherein the punch (80) includes eight ridges (81) evenly formed thereon. 13. The process according to claim 1 wherein the punch (90) includes twelve ridges (91) evenly formed thereon.