‌Genuine Sinotruk HOWO Truck Planetary Gear Carrier (OEM Part No. AZ2203100002) - Heavy-Duty Differential Assembly Component

This ‌OEM Sinotruk HOWO planetary carrier (Part No. AZ2203100002)‌ is engineered for ‌heavy-duty differential systems‌, featuring ‌20CrMnTi alloy steel construction‌ with ‌carburizing heat treatment‌ (HRC 58-62 surface hardness). The ‌CNC-machined gear mounting surfaces‌ ensure ±0.02mm runout tolerance for smooth power transfer.

✔ ‌200,000km service life‌ (field-tested in mining operations)
✔ ‌Precision balanced‌ (≤15g·cm at 3000rpm)
✔ ‌Direct replacement‌ for HOWO ZZ3257/ZZ3317 series
✔ ‌Compatible‌ with API GL-5 gear oil

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‌Technical Specifications‌:

Parameter	Specification
Part Number	AZ2203100002
Material	20CrMnTi Alloy Steel
Heat Treatment	Carburizing (Depth 1.2-1.8mm)
Gear Teeth Hardness	HRC 58-62
Weight	14.5 kg
Standards	ISO 6336, GB/T 3077

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‌Installation Notes‌:

1. ‌Pre-assembly‌: Soak bearings in gear oil for 30 minutes before installation.
2. ‌Torque Sequence‌: Tighten carrier bolts in star pattern to ‌180±5 Nm‌.
3. ‌Backlash Check‌: Verify 0.10-0.15mm gear tooth clearance with feeler gauge.
4. ‌Run-in Procedure‌: Operate at 50% load for first 500km.