The WG9003336218 Deep Groove Ball Bearing (YA Type with Collar) is a specialized transmission bearing designed for heavy-duty truck gearboxes.
It is engineered for high load capacity, low friction, high-speed operation, and excellent sealing performance. As a core component of the transmission system, it ensures stable operation, smooth shifting, and reliable power delivery under heavy-duty working conditions.
Key Function
- Supports radial load and bidirectional axial load
- Ensures stable rotation of gearbox components
- Provides precise axial positioning and anti-displacement function
- Reduces friction, vibration, and operational noise
Product Advantages
● High-Strength GCr15 Bearing Steel
Manufactured from GCr15 high-carbon chromium bearing steel, the bearing features:
- High hardness and excellent wear resistance
- Uniform microstructure for stable performance
- Strong fatigue and impact resistance
After quenching + low-temperature tempering:
- Improved hardness and toughness balance
- Long service life under heavy load conditions
- Resistance to pitting and deformation
● YA Type With Collar Positioning Design
The outer ring with collar (YA type) provides:
- Strong axial positioning capability
- Prevention of bearing axial movement or displacement
- Stable installation without additional retaining parts
It ensures precise fitment in gearbox-specific mounting positions.
● High Load & Low Friction Performance
The single-row deep groove design allows:
- Simultaneous radial and bidirectional axial load support
- Optimized contact angle between balls and raceways
- Increased load capacity by up to 20%
It delivers smooth, stable operation even under heavy impact loads.
● Double Sealing & Dust Protection System
Equipped with double rubber seals + dust covers, the bearing provides:
- Protection against dust, metal chips, and moisture
- Extended lubrication retention life
- Reliable sealing performance from -40°C to 120°C
It effectively prevents contamination and oil leakage.
● Precision Engineering for Smooth Operation
- High-precision raceways and steel balls
- Low noise and low vibration during high-speed rotation
- Stable performance without looseness or deformation
It ensures smooth and quiet gearbox operation.
● Anti-Fatigue & Long Service Life
Advanced heat treatment and material quality ensure:
- High resistance to fatigue and wear
- Long-term stability under continuous operation
- Reduced maintenance frequency and downtime
Technical Features
- Standard: GB/T 276
- Material: GCr15 high-carbon chromium bearing steel
- Heat treatment: Quenching + low-temperature tempering
- Structure: Single-row deep groove ball bearing with collar (YA type)
- Sealing: Double rubber seals + dust covers
- Temperature range: -40°C to 120°C
- High load and high-speed capability
Application Scope
- Heavy-duty truck transmissions
- Gearbox and driveline systems
- Commercial vehicle axle and shaft assemblies
- Engineering and construction vehicles
- OEM assembly and aftermarket replacement
Performance Benefits
- High load-bearing capacity and stability
- Reduced friction and energy loss
- Strong anti-dust and anti-leak protection
- Smooth and low-noise operation
- Extended service life under harsh conditions
Supply & Service
- Ready stock for fast delivery
- OEM customization available
- Stable quality for long-term supply
- Professional technical support provided