Audi E type clutch hub assembly ZF 8HP55A 38 spline and matching gears
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:
-
Transmits 320Nm in 2nd/4th/6th gears
-
Oil passages for clutch cooling (flow rate: 4–6 L/min)
-
-
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 transmission gears
,38 spline clutch hub
-
Used 62TE Transmission Input Clutch Drum Assembly OE 5241064 for Chrysler 200 300 Concorde
1. Product Overview This is a TRANSMESUN used 62TE Transmission Input Clutch Drum Assembly , a core precision component specifically designed for Chrysler vehicles equipped with 62TE 6-speed automatic transmissions . As a critical part of the automatic transmission system, the input clutch drum is ... -
Used 4L60E 4L65E 4L70E Input Drum 245mm 27-Spline with Shaft & Reluctor for GM Chevy Vehicles 2006-2009
1. Product Overview This is a high-quality used 4L60E/4L65E/4L70E Input Drum Assembly (245mm, 27-Spline) with Shaft & Reluctor , professionally tested and guaranteed to fit GM Chevy vehicles equipped with 4L60E, 4L65E, and 4L70E 4-speed automatic transmissions (2006-2009). As a core component of the ... -
100% Tested Used 7DCT270 Wet Dual-Clutch for Hongqi H5 2020- FAW Bestune B70 OE 1700010VA01
1. Packaging & Delivery Packaging Detail: Standard neutral industrial packaging, reinforced with shockproof foam, moisture-proof film and fixed brackets to prevent collision, vibration and moisture damage during long-distance transportation. Custom packaging (branded boxes, labels, etc.) is ...