FAG cylindrical roller bearings NJ205-E-XL-TVP2-C3 25x52x15mm
The FAG NJ205-E-XL-TVP2-C3 is a robust single-row cylindrical roller bearing engineered for heavy radial load applications, featuring an optimized design for high reliability and durability. Ideal for motors, gearboxes, pumps, and general industrial machinery, this bearing combines FAG's premium manufacturing standards with functional enhancements to meet demanding operational requirements.
The FAG NJ205-E-XL-TVP2-C3 is a robust single-row cylindrical roller bearing engineered for heavy radial load applications, featuring an optimized design for high reliability and durability. Ideal for motors, gearboxes, pumps, and general industrial machinery, this bearing combines FAG’s premium manufacturing standards with functional enhancements to meet demanding operational requirements.
Core Attributes & Designation Breakdown
| Code | Meaning |
|---|---|
| NJ | Single-row cylindrical roller bearing with two ribs on the outer ring and one rib on the inner ring (accommodates one - way axial displacement of the shaft) |
| 205 | Size series (20) + bore diameter code (05 = 25 mm, calculated as 05×5) |
| E | Enhanced design with optimized roller and raceway geometry, delivering higher load - carrying capacity than standard versions |
| XL | Extended inner ring (facilitates easy mounting and dismounting, suitable for applications with limited installation space) |
| TVP2 | Glass - fiber reinforced polyamide cage, providing excellent wear resistance, low friction, and high - speed adaptability |
| C3 | Increased radial internal clearance (suited for operating conditions with high temperatures or thermal expansion of components) |
Key Specifications
| Parameter | Value |
|---|---|
| Bore diameter (d) | 25 mm |
| Outer diameter (D) | 52 mm |
| Width (B) | 15 mm |
| Minimum chamfer (r₁) | 1 mm |
| Basic dynamic load rating (Cr) | 25.5 kN |
| Basic static load rating (C0r) | 22.4 kN |
| Limiting speed (grease lubrication) | 12000 min⁻¹ |
| Limiting speed (oil lubrication) | 16000 min⁻¹ |
| Weight | 0.11 kg |
Performance Advantages
- High Load Capacity: The E-type enhanced design optimizes the contact area between rollers and raceways, enabling the bearing to withstand heavy radial loads and shock loads, and extending service life in harsh working conditions.
- Convenient Installation: The XL extended inner ring simplifies mounting and dismounting operations, eliminating the need for complex auxiliary tools and reducing assembly time and labor costs.
- Stable High-Speed Performance: The TVP2 glass-fiber reinforced polyamide cage has low friction coefficient and good dimensional stability, effectively reducing heat generation during high-speed rotation and ensuring smooth operation.
- Strong Environmental Adaptability: The C3 increased internal clearance compensates for the thermal expansion of shafts and housings in high-temperature environments, avoiding bearing seizure and ensuring stable operation under variable temperature conditions.
- Durable Construction: FAG’s precision machining and high-quality material selection ensure excellent fatigue resistance, making the bearing suitable for long-term continuous operation in industrial scenarios.
Application Scenarios
This bearing is widely used in:
- Electric motors and generators
- Gearboxes and reducers
- Centrifugal pumps and compressors
- Conveyor systems and agricultural machinery
- Construction equipment and automotive auxiliary components
Installation & Maintenance Guidelines
- Mounting: The extended inner ring allows for press-fit installation on the shaft. Use a soft hammer or mounting sleeve to apply force evenly to the inner ring to avoid damaging the raceway or rolling elements.
- Lubrication: Select lubricants based on operating speed and temperature. Grease lubrication is recommended for general applications, while oil lubrication is preferred for high-speed or high-temperature working conditions.
- Clearance Check: Ensure the C3 clearance matches the application’s thermal conditions. Avoid using this bearing in low-temperature environments where excessive clearance may cause vibration.
- Contamination Prevention: Keep the installation environment clean, and use appropriate seals to prevent dust, debris, or corrosive media from entering the bearing interior.
