The WG220310000019 Low Gear Cone Hub Assembly is a key synchronizer component used in the auxiliary gearbox (range/splitter section) of heavy-duty truck transmissions.
It is responsible for low gear synchronization, torque transmission, and shift shock absorption. As a core load-bearing synchronizer part, it ensures smooth engagement, stable power delivery, and reliable shifting performance under heavy-duty operating conditions such as starting, climbing, and high-torque output.
Core Function
- Works with synchronizer ring for smooth gear engagement
- Transmits high torque in low gear operation
- Absorbs and reduces shifting impact
- Prevents gear grinding, skipping, and abnormal noise
Product Advantages
● High-Strength Alloy Steel Construction
Manufactured from high-strength alloy structural steel forging, the cone hub features:
- Dense and uniform material structure
- High load-bearing capacity
- Strong impact resistance under heavy torque
After quenching + low-temperature tempering:
- High surface hardness
- Excellent wear and fatigue resistance
- Long service life under harsh conditions
● Precision Machined Synchronization Surfaces
The friction cone surface is precision ground to ensure:
- Stable friction coefficient
- Fast synchronization response
- Shorter shifting time
- Reduced gear engagement impact
This significantly improves shifting comfort and reduces noise.
● High-Precision Spline Engagement
The internal spline is processed by precision broaching:
- High meshing accuracy
- Uniform force distribution
- No slipping or disengagement
- Strong torque transmission capability
It ensures stable connection with the auxiliary shaft system.
● One-Piece Integrated Structure
The cone hub and gear seat are integrated into a rigid structure:
- Compact and durable design
- Reliable torque transmission path
- Improved structural strength under impact loads
- Reduced risk of failure or deformation
● Accurate Alignment & Stable Installation
The component features:
- High concentricity control
- Precise axial positioning
- Stable engagement with synchronizer components
- No looseness or misalignment during operation
This ensures smooth and stable gearbox performance.
● Heat & Wear Resistance for Heavy Duty Use
Designed for harsh working conditions:
- Suitable for oil bath lubrication system
- Resistant to high temperature and friction heat
- No surface burning or sticking during long operation
Technical Features
- Material: High-strength alloy structural steel
- Heat treatment: Quenching + tempering
- Friction surface: High-frequency hardened cone surface
- Machining: Precision grinding + CNC broaching
- Structure: Integrated cone hub + gear seat design
- High concentricity and dynamic balance control
- Optimized for oil lubrication environments
Application Scope
- Heavy-duty truck auxiliary gearboxes (range/splitter systems)
- Low gear synchronizer assemblies
- Commercial vehicle transmissions
- Construction and mining trucks
- OEM gearbox assembly and repair
Performance Benefits
- Fast and smooth gear synchronization
- High torque transmission without slipping
- Reduced shifting shock and noise
- Improved durability under heavy load
- Stable and reliable long-term operation
Supply & Service
- Ready stock available for fast delivery
- OEM customization supported
- Stable quality for long-term supply
- Professional technical support provided