Manufacturing Process for L9030240A0 Transfer Case Gear Assembly (ZQC2000 Liugong Mining Truck)
Material Prep:
Forge gears from 20CrMnTiH alloy steel with 58–62 HRC post-carburizing.
Gear Cutting:
Perform CNC hobbing for 35-tooth helical gears; grind to ±0.005 mm profile tolerance.
Case Machining:
Mill housing from QT500-7 nodular iron with 0.02 mm flatness tolerance on mating surfaces.
Heat Treatment:
Induction-harden shafts (55–60 HRC depth: 3–5 mm) per ISO 2639.
Assembly:
Press-fit tapered roller bearings with 0.05–0.08 mm preload.
Testing:
Run 4-hour load cycles (max 2,500 N·m torque) with IR thermal imaging (<85°C pass).
QC Standards:
Gear noise ≤78 dB(A).
CMM-verify backlash (0.10–0.15 mm) and tooth contact patterns (≥90% area).
Product Deatials
| Part Name | Inter Gear | Part Number | L9030240A0 |
| Model | ZQC2000 | Application | Minning Truck |
| Size | / | Weight | 4.8KG |
| MOQ | 1 set | Brand Name | CBP |
Hot Tags: l9030240a0 inter gear transfer box device zqc2000 parts for mining truck, China l9030240a0 inter gear transfer box device zqc2000 parts for mining truck manufacturers, factory, stone paver parts, market demand of roller parts, light weight paver parts, industry trend of roller parts, , bulk paver parts
