The FAG 29414-E1-XL is a premium single-direction spherical roller thrust bearing from the X-LIFE high-performance range by Schaeffler Group, engineered for exceptional load-carrying capacity, extended service life, and reliable operation in heavy-duty industrial applications. This bearing features an increased capacity (XL) design with more asymmetrical rollers, enabling it to handle extremely high axial loads while accommodating moderate radial loads and misalignment. Its separable components (shaft washer, housing washer, and roller-cage assembly) allow for straightforward mounting and dismounting, simplifying maintenance procedures.
Key Specifications
| Parameter | Value | Description |
|---|
| Model Number | 29414-E1-XL | FAG X-LIFE single-direction spherical roller thrust bearing, increased capacity design |
| Dimensions | 70 × 150 × 48 mm | Bore (d): 70 mm, Outer diameter (D): 150 mm, Height (H): 48 mm |
| Bearing Type | Single-direction spherical roller thrust bearing | Self-aligning design for misalignment compensation |
| Design Features | E1-XL | E1: Enhanced design with optimized internal geometry; XL: Extra Load capacity with additional rollers |
| Cage Material | Sheet metal | High-strength, heat-resistant cage for heavy-load applications |
| Internal Clearance | Standard | Factory-set clearance for balanced performance under typical operating conditions |
| Precision Class | ISO P0 (ABEC 1) | Standard precision for general industrial applications |
| Lubrication | Relubricatable | Allows for maintenance and extended service life |
| Weight | Approx. 3.2 kg | Robust construction for heavy-duty performance |
Technical Advantages
Exceptional Axial Load Capacity: The "XL" increased capacity design incorporates additional asymmetrical rollers, delivering 30-50% higher axial load ratings compared to standard spherical roller thrust bearings. This makes it ideal for applications with extreme axial forces like presses, turbines, and heavy machinery.
Superior Durability: X-LIFE technology optimizes surface finishes, internal geometry, and material quality, extending service life by up to 50% compared to conventional bearings while reducing friction and wear. The fine surface structure minimizes stress concentrations and improves lubricant film formation.
Self-Aligning Capability: Specially designed spherical raceways and asymmetrical rollers allow for 0.5-1.5° of misalignment compensation, accommodating shaft deflection and housing inaccuracies without performance degradation. This feature is critical in applications where perfect alignment is difficult to achieve.
Combined Load Handling: While primarily designed for axial loads, the bearing can simultaneously accommodate moderate radial loads (up to 25% of the axial load capacity), making it suitable for applications with combined loading conditions.
Easy Maintenance: Separable components enable individual mounting of shaft washer, housing washer, and roller-cage assembly, simplifying installation, inspection, and relubrication procedures, thus reducing downtime and maintenance costs.
Performance Ratings
- Basic Dynamic Load Rating (Cₐ): 820 kN (axial)
- Basic Static Load Rating (C₀ₐ): 2,200 kN (axial)
- Limiting Speed (Grease Lubrication): Up to 1,600 rpm
- Limiting Speed (Oil Lubrication): Up to 2,400 rpm
- Operating Temperature Range: -30°C to +120°C (with appropriate lubrication)
Ideal Applications
The FAG 29414-E1-XL excels in demanding industrial sectors requiring heavy axial load support, particularly:
- Heavy Machinery: Hydraulic presses, forging equipment, and rolling mills
- Marine Applications: Ship propulsion systems, marine gearboxes, and rudder engines
- Oil & Gas: Drilling rigs, blowout preventers, and wellhead equipment
- Power Generation: Steam turbines, hydroelectric generators, and vertical motors
- Mining & Construction: Excavators, crushers, and conveyor systems
- Wind Energy: Wind turbine main shafts and gearboxes
Mounting & Usage Recommendations
- Mount shaft washer with interference fit on the shaft and housing washer with clearance fit in the housing
- Ensure proper alignment during installation to maximize bearing life and performance
- Use recommended lubricants: Mineral oil with viscosity grade ISO VG 68-150 or lithium-based grease with EP additives
- Apply appropriate preload if required for specific application conditions
- Regularly inspect lubrication condition and relubricate according to operating hours


