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Flanged ballrace 6 x 10 x 3 mm

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Ballraces are used wherever moving parts are required to run with a minimum of play and a minimum of friction. The more ballraces are used, the more smoothly the mechanics of a helicopter works, and the lower the rate of wear. The dimensions of a ballrace mean: inside diameter (I.D.) x outside diameter (O.D.) x thickness. For flanged bearings the same...

Prix 14,70 €
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Tête 3-pales 10 mm

703/30
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Des têtes de rotor avec trois ou plusieurs pales constituent un chapitre à part dans le domaine de l'hélicoptère modèle réduit. Nombreux pilotes ressentent l'envie de piloter un jour une...

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Política de seguridad

 

Política de envío

 

Política de devolución

Description

Des têtes de rotor avec trois ou plusieurs pales constituent un chapitre à part dans le domaine de l'hélicoptère modèle réduit. Nombreux pilotes ressentent l'envie de piloter un jour une telle tête.La génération actuelle des têtes multipales n'est plus du tout comparable avec ce qu'on a connu autrefois, notamment au niveau de leur comportement en vol.Les axes porte-pales sont directement intégrés au moment de la fabrication des pièces centrales, dans un noyau en matériau composite renforcé. Il en découle une élasticité et un amortissement qui participent largement aux performances de ce système de rotor.Les porte-pales particuliers, avec deux vis de fixation, permettent d'obtenir un parfait alignement, dés le lancement du rotor. Lors de variations de régime, les pales ont tendance à effectuer des battements, engendrant un déséquilibre du système, car ces mouvements ne se font pas de manière identique sur chaque pale. La double fixation supprime ces battements.La tendance des pales à battre est compensée par la composition et l'élasticité de la pièce centrale de la tête de rotor.Des maquettes arrivent parfois au double du poids d'un modèle d'entraînement. Malgré les technologies les plus modernes (ou parce qu'elles le rendent possible), une chose reste commune à tous les modèles: plus ils sont lourds, plus ils sont difficiles à piloter. Afin de réduire les exigences au pilote à un niveau normal, il est possible d'employer un HELICOMMAND réf. 3270 spécialement conçu pour têtes multipales.Les plateaux cycliques de toutes les mécaniques permettent de commander les têtes de rotor 2-, 3-, et 4-pales.

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Tête 3-pales 10 mm

Tête 3-pales 10 mm

Des têtes de rotor avec trois ou plusieurs pales constituent un chapitre à part dans le domaine de l'hélicoptère modèle réduit. Nombreux pilotes ressentent l'envie de piloter un jour une...

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