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HOWO 336 HOWO 371 Truck Planetary Carrier Assembly AZ9231340329
Installed within the wheel-end reduction gear of heavy-duty truck drive axles (commonly the HC16 rear axle), it is a core component of the wheel-end planetary gear system. Its main function is to provide a second stage of reduction at the wheel end, further amplifying torque, reducing wheel speed, and improving heavy-load climbing ability and traction.
Common cross-referenced/similar numbers: 199012340029, 199112340029,and other variations.
Function
1. Torque Transmission and Distribution: As a core component of the wheel-side planetary gear reducer, the planetary carrier fixes and supports multiple planetary gears, evenly distributing the input torque from the sun gear to the planetary gears. Through meshing with the internal ring gear, the power is ultimately transmitted to the wheel hub, achieving efficient torque transmission.
2. Achieving a high reduction ratio: The wheel-end planetary gear reducer is a two-stage reduction system. The planetary gear carrier assembly helps achieve a large reduction ratio, significantly amplifying the torque output of the drive axle, enabling heavy-duty trucks to have stronger traction and better off-road capability when carrying heavy loads, driving at low speeds, climbing hills, or starting from a standstill.
3. The planetary gear carrier structure is robust, ensuring stable gear engagement under extreme loads, vibrations, or impacts, preventing abnormal noise, overheating, or gear damage at the wheel end. This guarantees reliable vehicle operation on challenging road conditions. It works in conjunction with the wheel hub, brake drum/disc, and bearings to form a complete wheel-end assembly, facilitating maintenance and replacement. Common signs of damage include abnormal wheel-end noise, oil leaks, vehicle vibration, power loss, or difficulty climbing inclines.
DETAILS
| DESCRIPTION | Engine Front Support | PART NUMBER | 1680 590095 |
| WEIGHT |
35 KG |
VOLUME |
251 mm × 376 mm × 376 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 |
Core Planetary Gear Set Components (Synchronous replacement is highly recommended):
1. Sun Gear AZ9231340328: Input end, directly engages with the planetary carrier. Typically has 23 external teeth and 26 internal teeth.
2. Planetary Gear: 16 teeth, 3-4 gears per set. Often sold as a kit (e.g., with pins and bearings).
3. Ring Gear AZ923134xxxx: 57 teeth, fixed in the wheel hub housing, providing counterforce.
4. Planetary Gear Pin/Bearing: Small shafts and needle bearings that support the rotation of the planetary gears; prone to wear and loosening.
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