The AZ2212050011 Right Idler Gear Shaft is a key internal transmission component used in heavy-duty truck gearboxes.
It is designed to support and guide the rotation of the idler gear, ensuring accurate positioning and smooth power transfer within the gearbox. As an essential precision part in transmission assembly and maintenance, it directly affects gear stability, noise control, and overall gearbox durability.

Core Function
- Provides precise positioning for the idler gear
- Guides smooth and stable gear rotation
- Maintains accurate gear meshing alignment
- Reduces abnormal noise, vibration, and wear
- Ensures stable gearbox operation under load
Product Advantages
● High-Strength Alloy Steel Construction
Made from high-strength alloy structural steel precision forging, the shaft features:
- Excellent strength and toughness balance
- Strong resistance to impact and fatigue
- Reliable performance under long-term heavy load operation
After quenching, tempering, and precision finishing:
- Uniform hardness distribution
- Improved wear resistance and fatigue strength
- Extended service life under harsh conditions
● High-Precision Machining
The shaft is manufactured with strict dimensional control:
- Accurate outer diameter and concentricity
- Tight tolerance for stable assembly fit
- No wobbling or misalignment during operation
- Smooth interaction with idler gear components
This ensures stable and reliable gear performance.
● Smooth Surface & Reduced Friction
- Precision polishing of shaft surface
- High surface finish for reduced friction loss
- Lower wear between shaft and idler gear
- Improved transmission efficiency
This helps extend the lifespan of both shaft and gear components.
● Stable High-Load Performance
Designed for heavy-duty working conditions:
- Withstands continuous high-speed rotation
- Strong resistance to wear and deformation
- Stable performance under heavy torque load
- No bending, shifting, or instability
● Reliable Idler Gear Positioning
The shaft ensures:
- Accurate idler gear alignment
- Stable support and rotation guidance
- Reduced gear meshing deviation
- Prevention of abnormal noise and uneven wear
Technical Features
- Material: High-strength alloy structural steel
- Process: Precision forging + quenching + tempering
- Finishing: Precision grinding and polishing
- High concentricity and dimensional accuracy
- Wear-resistant and fatigue-resistant design
- Optimized for heavy-duty transmission systems
Application Scope
- Heavy-duty truck manual transmissions
- Gearbox idler gear assemblies
- Transmission repair and maintenance systems
- Commercial and engineering vehicles
- OEM gearbox assembly applications
Performance Benefits
- Smooth and stable gear operation
- Reduced gearbox noise and vibration
- Improved transmission efficiency
- Extended gear and shaft service life
- Reliable performance under heavy load conditions
Supply & Service
- Ready stock available for fast delivery
- Wholesale and bulk supply supported
- OEM customization available
- Stable quality for long-term cooperation

