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Transmission automatique CVT à 8 rapports, engrenage planétaire 1087240049
Caractéristiques clés et analyse :
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Application : Série ZF 8HP (probablement 8HP45/55/70), supportant les rapports de vitesse 2e/4e/6e/8e.
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Conception : Train planétaire composé (type Ravigneaux ou Lepelletier) avec durcissement Pignon solaire à 18–22 dents et Couronne à 42–46 dents.
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Matériau : Acier cémenté 20MnCr5 (dureté du cœur 58–62 HRC, surface >800 HV).
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Tolérances critiques :
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Jeu : 0,05–0,12 mm (dépasser 0,15 mm provoque un sifflement)
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Limite de faux-rond : <0,03 mm
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Modes de défaillance :
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Pitting/écaillage (fatigue due aux cycles de couple élevés)
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Usure du tourillon de palier (si présence de débris d'huile)
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Distorsion thermique (si le fluide de transmission automatique dépasse 140 °C)
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Remarque : Nécessite Fluide ZF Lifeguard 8 pour une lubrification correcte. Courant dans les applications Audi/BMW.
8-speed CVT automatic transmission gear
,planetary gear for transmission 1087240049
,CVT transmission parts with warranty
Mrs. Kinny
Foreign trade Manager
- Email: admin@transmesun.com
- Télégramme: +8618665691829
- Whatsapp: 8618665691829
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Wechat:
+8618665691829
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Company Introduction Meishun company focuses on automotive automatic transmission assembly, spare parts, maintenance parts including valve body, chain belt, pulley set, solenoid valve kit, clutch kit, seal kit, TCU, control models, differential, oil pump, piston, etc. A full range of transmission accessories cover all models. Company strength Covering gearboxes and gearbox accessories for all car brands. Remanufacturing technology leads domestic peers. We stock a large
