Shandong Shengyue Technology Development Co.,Ltd is one of the most professional 16-ton class two-stage reduction heavy-duty drive axle intermediate axle assembly ah71131552 hc16 5.73 manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
16-Ton Class Two-Stage Reduction Heavy-Duty Drive Axle Intermediate Axle Assembly AH71131552 HC16 5.73
The 5.73 ratio represents a configuration designed for high gear reduction and heavy-load applications. Compared to ratios like 4.42 or 4.80-typically used for highway driving or urban muck transport-the 5.73 ratio significantly amplifies torque output at the driveshaft. This provides the vehicle with powerful burst capability for climbing steep gradients in deep mine pits, starting under heavy loads, or extricating itself from muddy, treacherous terrain, though it does impose some limitations on top speed.
HC16 5.73 Drive Axle (Central Main Reduction + Hub Reduction)
1. Central single-stage main reduction (carrier assembly): The part number is AZ9231320745, as previously mentioned. The internal ring and pinion gears (drive and driven gears) typically feature a 25:14 tooth ratio (subject to slight variations depending on the original factory batch) to perform the first stage of reduction.
2. Hub reduction system: Located within the wheel hubs on both sides, this system utilizes a planetary gear mechanism (comprising an internal ring gear, a planet carrier, and three or five planetary gears) to achieve the second stage of gear reduction and torque multiplication.
Core Structural Components of the Intermediate Axle Assembly
1. Input and Through-Shaft System: A structure unique to the intermediate axle. Power from the driveshaft enters the intermediate axle first; in addition to driving the intermediate axle itself, the power must be transmitted further rearward to the second rear axle via a through-shaft.
2. Dual Differential Control System
Inter-axle Differential: Regulates the rotational speed difference between the intermediate axle and the rear axle, preventing tire binding or scrubbing during multi-axle drive operations.
Inter-wheel Differential: Regulates the rotational speed difference between the left and right wheels of the intermediate axle.
Differential Lock (Locking Mechanism): Features standard dual pneumatic differential locks (inter-axle and inter-wheel); on muddy, rocky, or slippery surfaces, these provide a rigid power lock to deliver maximum traction for vehicle recovery.
3. 5.73 Central Main Reduction Gear Assembly (AZ9231320745): Utilizes large spiral bevel gears (hypoid gear set) to handle primary gear reduction.
4. Hub Reduction and Braking Unit: Employs a classic heavy-duty planetary gear hub reduction mechanism. High torque is ultimately delivered at the wheel end, significantly reducing the torsional fatigue load on the axle shafts.
If only the intermediate axle gears are damaged, replacing the final drive assembly (AZ9231320745) is usually sufficient. However, during a major overhaul, it is essential to inspect the intermediate axle's internal through-shaft and bearing nuts for wear or looseness; this prevents excessive play in the old through-shaft from damaging the newly installed final drive gears.
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