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

Product Summary
Key Specifications: Spline Design: 38 involute splines (12° pressure angle) with 0.8–1.2µm hardened surface finish for gear engagement Material: Case-hardened 20MnCr5 steel (58–62 HRC core, 850HV surface) Gear Match: Mated to planetary carrier with 0.02–0.05mm backlash tolerance Critical Functions: ...
Basic Properties
Brand Name: AUDI
Model Number: 8HP-55A;0BK
Trading Properties
Minimum Order Quantity: 1
Price: 0-1000
Payment Terms: T/T
Product Description

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 0

Audi E type clutch hub assembly ZF 8HP55A 38 spline and matching gears 1

Audi E type clutch hub assembly ZF 8HP55A 38 spline and matching gears 2



Product Details
Highlight:

Audi E type clutch hub assembly

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ZF 8HP55A transmission gears

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38 spline clutch hub

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

Mrs. Kinny

Foreign trade Manager

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