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Audi E type clutch hub assembly ZF 8HP55A 38 spline and matching gears

Guangzhou Meishun Automatic Transmission Co., Ltd.
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Audi E type clutch hub assembly ZF 8HP55A 38 spline and matching gears

Brand Name : AUDI

Model Number : 8HP-55A;0BK

MOQ : 1

Price : 0-1000

Payment Terms : T/T

Delivery Time : 5-8 work day

Packaging Details : Paper box or wooden box

Year: : 2010-2017

MODEL: : 8HP-55A;0BK

SIZE : 15X15X15CM

Brand: : AUDI

Item Weight : 3kg

OENO : 1087471023

Applicable Brand : 2016-2018 RS6 2014-2018 RS7 2013-2017 S8

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Key Specifications:

  1. Spline Design: 38 involute splines (12° pressure angle) with 0.8–1.2µm hardened surface finish for gear engagement

  2. Material: Case-hardened 20MnCr5 steel (58–62 HRC core, 850HV surface)

  3. Gear Match: Mated to planetary carrier with 0.02–0.05mm backlash tolerance

  4. Critical Functions:

    • Transmits 320Nm in 2nd/4th/6th gears

    • Oil passages for clutch cooling (flow rate: 4–6 L/min)

  5. Failure Modes:

    • Spline fretting (if backlash exceeds 0.1mm)

    • Lubrication starvation marks at >120°C

Note: Updated from 8HP45 with 15% wider spline base for 6000+ shift cycles. Requires ZF-approved friction modifier additives.


Audi E type clutch hub assembly ZF 8HP55A 38 spline and matching gears

Audi E type clutch hub assembly ZF 8HP55A 38 spline and matching gears

Audi E type clutch hub assembly ZF 8HP55A 38 spline and matching gears




Wholesale Audi E type clutch hub assembly ZF 8HP55A 38 spline and matching gears from china suppliers

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