JPH0460014B

A method and apparatus for manufacture of a rolling body directly on a bearing, comprising a hub, a roller sleeve, an annular portion joining the hub and roller sleeve, and reinforcing ribs on either side of the annular portion. Injected material fills the recesses for forming the reinforcing ribs f...

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Bibliographische Detailangaben
Hauptverfasser:	ROORANTO BONENGERU, HERUBERUTO DOBUHAN, MANFUREETO BURANDENSHUTAIN
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING AXLES FOR WHEELS OR CASTORS BEARINGS BLASTING CASTORS ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INCREASING WHEEL ADHESION INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLE WHEELS VEHICLES IN GENERAL WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method and apparatus for manufacture of a rolling body directly on a bearing, comprising a hub, a roller sleeve, an annular portion joining the hub and roller sleeve, and reinforcing ribs on either side of the annular portion. Injected material fills the recesses for forming the reinforcing ribs from two directions: a primary flow radially inwardly directed from the mold portion for forming the roller sleeve and a secondary flow radially outwardly directed from the mold portion for forming the hub. The total cross-sectional area of the recesses for forming the reinforcing ribs is adjusted with respect to the circumferential cross-sectional area of the mold portion for forming the annular portion so that the fronts of the primary and secondary flows meet in the recesses. Pressure-release openings are arranged to communicate with the recesses at points in the area at which the meeting of the flow fronts occurs. The junctures resulting from the meeting of the flow fronts are thereby formed along the reinforcing ribs.