Transmissão automática cvt de 8 velocidades engrenagem planetária 1087240049
Principais Características e Análise:
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Aplicação: Série ZF 8HP (provavelmente 8HP45/55/70), suportando as relações de marcha 2ª/4ª/6ª/8ª.
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Design: Conjunto planetário composto (tipo Ravigneaux ou Lepelletier) com endurecimento pinhão solar de 18–22 dentes e coroa de 42–46 dentes.
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Material: Aço 20MnCr5 cementado (dureza do núcleo 58–62 HRC, superfície >800 HV).
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Tolerâncias Críticas:
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Folga: 0,05–0,12mm (exceder 0,15mm causa ruído)
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Limite de empenamento: <0,03mm
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Modos de Falha:
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Pitting/lascamento (fadiga devido à alta ciclagem de torque)
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Desgaste do munhão do rolamento (se houver detritos de óleo)
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Distorção térmica (se o ATF exceder 140°C)
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Nota: Requer fluido ZF Lifeguard 8 para lubrificação adequada. Comum em aplicações Audi/BMW.
8-speed CVT automatic transmission gear
,planetary gear for transmission 1087240049
,CVT transmission parts with warranty
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