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SINOTRUK HOWO A7 Sun Gear Az9981340071 FOR AC16 axle
With a 19-tooth design and moderate module, it meshes with planet gears and ring gear to form a planetary reducer; installed inside the wheel hub reducer, it serves as the input drive gear, further reducing and increasing the torque of the power transmitted from the differential before transmitting it to the wheels, ensuring heavy-load climbing and low-speed high torque output;
Function
1. Power Transmission and Torque Boosting: As the sun gear of a planetary reducer, it receives power from the differential and achieves multi-stage reduction (typically a reduction ratio of 4-6:1) through meshing with the planetary gears, significantly increasing wheel-end torque and supporting heavy-duty truck starts, climbing, and uphill heavy-load operation.
2. Load Distribution and Durability: High-strength tooth surfaces withstand heavy-load impacts and torque, evenly distributing power to each planetary gear and preventing single-tooth overload; carburizing and quenching treatment enhances fatigue and wear resistance, making it suitable for harsh working conditions such as mining, construction, and long-distance logistics.
3. Stable Transmission: Precision tooth profile ensures smooth meshing, low noise, and low vibration, improving overall vehicle ride comfort and transmission efficiency; in conjunction with the wheel hub, bearings, and planetary carrier, it maintains the overall reliability of the wheel-side reducer.
4. Easy Maintenance: As an independent gear component, it typically requires replacement of the entire assembly or individual parts after wear, resulting in low maintenance costs; malfunctions manifest as abnormal noise, oil leaks, wheel-end vibration, or power loss.
DETAILS
| DESCRIPTION | Sun Gear | PART NUMBER | Az9981340071 |
| WEIGHT |
3KG |
VOLUME |
90 × 90 × 60 mm |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | COUNTRY OF ORIGIN | CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | chassis |
Used for repairing abnormal noises, worn gears, broken teeth, insufficient power, and oil leaks at the axle end of wheel-side reducers; essential replacement parts during major overhauls of older vehicles, accident replacements, or upgrades of the axle assembly; installation requires removing the wheel hub and opening the wheel-side reducer, and it is recommended to use it with new planetary gears, gear rings, bearings, and seals to avoid secondary damage.
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