Function, Material, and Overview of HW19712 Transmission
Function
1. Multi-Gear Shifting Capability
The HW19712 is a 12-speed manual transmission designed for heavy-duty commercial vehicles, providing a wide gear ratio range to optimize engine efficiency across various driving conditions (e.g., highway cruising, heavy loads, or steep inclines).
2. High Torque Capacity
With a maximum input torque rating of1900 N·m, it is suitable for high-power diesel engines, ensuring reliable power transmission in demanding applications.
3. Durable and Reliable Design
• Dual Countershaft Main Box: Enhances load distribution and reduces wear on gear teeth, improving durability.
• Planetary Gear Secondary Box: Enables smooth gear transitions and compact design.
• Optional All-Aluminum Housing: Reduces weight while maintaining structural integrity.
4. Versatile Application
• Matching Range: Compatible with both on-highway and off-highway vehicles (e.g., trucks, construction machinery).
• Optional PTO (Power Take-Off): Supports auxiliary equipment (e.g., hydraulic pumps, cranes) via optional HW50 or HW70 PTO units.
5. Efficient Lubrication System
Combines forced lubrication and gear splash lubrication to ensure reliable operation under high loads and extended use.
Materials
1. Gearbox Housing
• Cast Iron (Standard): Provides high strength and durability for heavy-duty applications.
• Optional Aluminum Alloy: Reduces weight for improved fuel efficiency (where applicable).
2. Gears and Shafts
• High-Strength Alloy Steel: Ensures resistance to wear, fatigue, and high torque loads.
• Precision Machining: Maintains tight tolerances for smooth gear engagement and reduced noise.
3. Bearings and Seals
• High-Quality Bearings: Support heavy loads and high rotational speeds.
• Durable Seals: Prevent oil leakage and contamination.
Key Specifications (for HW19712 Manual Variant)
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HW19712 Tansmission Assy Images
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