The WG2229040067 Spacer Pad is a precision transmission isolation component designed for heavy-duty truck gearboxes.
It is installed between the main shaft, gears, and bearings to provide accurate clearance adjustment, vibration damping, and wear isolation. As a key OEM-grade component, it ensures smooth gearbox operation, improved transmission accuracy, and extended service life of critical drivetrain parts.
Key Function
- Provides precise axial clearance adjustment
- Acts as a cushioning and vibration damping layer
- Isolates wear between gears, shafts, and bearings
- Improves transmission stability and smoothness
Product Advantages
● High-Strength Alloy Steel Construction
Manufactured from 65Mn spring steel or 40Cr alloy structural steel, the spacer pad features:
- High strength and excellent toughness
- Strong fatigue and impact resistance
- Stable performance under heavy load conditions
After quenching and tempering heat treatment, it maintains:
- No deformation under long-term stress
- No cracking under heavy-duty operation
● Superior Anti-Corrosion Performance
The surface adopts blackening + phosphating composite treatment, providing:
- Strong resistance to oil and corrosion
- Excellent performance in 80–120°C gearbox environments
- Long-term protection against rust and deposits
It remains stable in high-temperature, high-vibration working conditions.
● Precision Engineering for Perfect Fit
The spacer pad features:
- Ultra-flat double-sided mirror grinding
- High surface smoothness and accuracy
- Perfect contact with bearing and gear surfaces
This ensures stable axial positioning and reduces vibration and noise.
● High Load Distribution Capability
The thin yet high-strength ring structure allows:
- Even axial load distribution
- Reduced stress concentration
- Lower risk of bearing burn and gear pitting
It effectively extends the service life of transmission components.
● Safe Edge & Burr-Free Design
All edges are precisely polished and chamfered:
- No burrs or sharp edges
- No damage during installation
- Safe assembly with shafts, gears, and bearings
● Compact & Space-Saving Design
The ultra-thin structure is designed for tight gearbox spaces:
- Does not affect lubrication or heat dissipation
- Compatible with compact transmission assemblies
- High adaptability for various gearbox models
● Excellent Durability in Harsh Conditions
Engineered for extreme environments such as:
- Long-distance heavy-duty transport
- Mountain climbing and high-load operation
- Road vibration and shock conditions
It ensures long service life far beyond standard aftermarket parts.
Technical Features
- Material: 65Mn spring steel / 40Cr alloy steel
- Heat treatment: Quenching + tempering
- Surface treatment: Blackening + phosphating
- Structure: Thin ring spacer pad
- Finish: Double-sided mirror grinding + chamfering
- High flatness and dimensional precision
Application Scope
- Heavy-duty truck transmissions
- Main shaft gear and bearing systems
- Gearbox axial spacing and damping systems
- Commercial vehicle driveline systems
- OEM assembly and aftermarket replacement
Performance Benefits
- Precise clearance control and positioning
- Reduced vibration and abnormal noise
- Improved transmission smoothness
- Extended gear and bearing service life
- Lower maintenance and downtime cost
Supply & Service
- Ready stock available for fast delivery
- OEM customization supported
- Stable quality for long-term cooperation
- Professional technical support provided