Metal working – Method of mechanical manufacture – Wheel making
Patent
1990-04-24
1991-11-12
Echols, P. W.
Metal working
Method of mechanical manufacture
Wheel making
29414, B21K 140
Patent
active
050636642
ABSTRACT:
A process for manufacturing wheel hub comprises an iron tube being swaged in wave form that can be cut to form a plurality of axle tubes; a plurality of bearing receiving bowls and a plurality of bowl holders. Each axle tube has a hub flange by stamping. Each hub flange has at its face plate a plurality of spoke holes and therein a bowl receiving recess. For the front wheel hub each bearing receiving bowl has at its bottom center an axial hole corresponding to the axial hole of the axle tube. In alignment with the axial hole of the bearing receiving bowl and the axial hole of the axle tube, the bearing receiving bowls are respectively provided for permitting to insert into the bowl receiving recesses and defining as a front wheel hub. For the rear wheel hub, the bowl holders have an inner surface, attaching to the outer portion of each bearing receiving bowl by brazing, being defined as a front portion. One of the bowl holders has a threaded portion on its front outer portion for permitting the connection of a free wheel. Each bowl holder has a rear outer surface, attaching to the front inner portion of each bowl receiving recess by brazing, being defined as a rear wheel hub.
REFERENCES:
patent: 378414 (1888-02-01), Burkhardt
patent: 1383486 (1921-07-01), Roberts
patent: 1840941 (1932-01-01), Eksergian et al.
patent: 3457762 (1969-07-01), DeGain
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