RNU 205 31.5x52x15 Bearing
Single Row Cylindrical Roller Bearing
The RNU 205 Single Row Cylindrical Roller Bearing is designed for applications requiring high radial load capacity and efficient performance. Unlike conventional bearings, the RNU 205 has no inner ring, allowing for a more compact design and greater flexibility in various assemblies. This bearing is ideal for use in gearboxes, electric motors, and pumps, where space is limited but reliability is crucial. Constructed from high-quality steel, it offers excellent durability and long service life, even under demanding conditions. Its design ensures smooth operation with minimal friction, making it a cost-effective choice for industrial applications.
Performance Overview of the RNU 205 Bearings
| Specifications | Details |
|---|---|
| Brand | AMIGO RNU 205 | Interchangeable With: SKF RNU 205 |
| Bore diameter | 31.5 |
| Outside diameter | 52 |
| Width | 15 |
| Bearing part | Bearing without inner ring |
| Number of rows | 1 |
| Locating feature, bearing outer ring | None |
| Bore type | Cylindrical |
| Cage | Non-metallic |
| Number of flanges, outer ring | 2 |
| Loose flange | None |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Basic dynamic load rating | 32.5 kN |
| Basic static load rating | 27 kN |
| Reference speed | 15 000 r/min |
| Limiting speed | 16 000 r/min |
| Product net weight | 0.101 kg |
| Dimensions (mm) | 31.5x52x15 |
| Specifications | Details |
|---|---|
| Brand | AMIGO RNU 205 | Interchangeable With: SKF RNU 205 |
| Bore diameter | 1.24 |
| Outside diameter | 2.047 |
| Width | 0.591 |
| Bearing part | Bearing without inner ring |
| Number of rows | 1 |
| Locating feature, bearing outer ring | None |
| Bore type | Cylindrical |
| Cage | Non-metallic |
| Number of flanges, outer ring | 2 |
| Loose flange | None |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Basic dynamic load rating | 7 306 lbf |
| Basic static load rating | 6 070 lbf |
| Reference speed | 15 000 r/min |
| Limiting speed | 16 000 r/min |
| Product net weight | 0.2227 lb |
| Dimensions (in) | 1.24x2.047x0.591 |
Specifications Overview of the RNU 205 Bearings
| Specifications | Details |
|---|---|
| Diameter under rollers | 31.5 mm |
| Outside diameter | 52 mm |
| Width | 15 mm |
| Shoulder diameter outer ring | ≈ 43.3 mm |
| Corner radius | min. 1 mm |
| Abutment diameter shaft | max. 34.7 mm |
| Abutment diameter housing | max. 46.4 mm |
| Fillet radius | max. 1 mm |
| Specifications | Details |
|---|---|
| Diameter under rollers | 1.24 in |
| Outside diameter | 2.047 in |
| Width | 0.591 in |
| Shoulder diameter outer ring | ≈ 1.705 in |
| Corner radius | min. 0.039 in |
| Abutment diameter shaft | max. 1.366 in |
| Abutment diameter housing | max. 1.827 in |
| Fillet radius | max. 0.039 in |
Applicable Machines and Industries
Electric Motors
- Role: Supports the rotor shaft, ensuring smooth rotation and reducing friction. The bearing allows for efficient operation at high speeds, maintaining the alignment and stability of the rotor.
- Common Brands: Siemens, ABB, General Electric, WEG, Toshiba.
Gearboxes
- Role: Facilitates the smooth transmission of power within the gearbox, handling significant radial loads. The bearing reduces wear on the gears and shafts, contributing to the longevity and efficiency of the gearbox.
- Common Brands: SEW-Eurodrive, Flender (Siemens), Bonfiglioli, Sumitomo, NORD Drivesystems.
Pumps
- Role: Supports the pump shaft, allowing it to rotate with minimal friction while handling the radial loads generated by the pump’s operation. The bearing ensures reliable performance and reduces maintenance needs.
- Common Brands: Grundfos, KSB, Sulzer, Flowserve, Xylem.
Textile Machinery
- Role: Provides support to the high-speed rotating elements such as spindles and rollers, ensuring smooth operation and reducing vibration in textile machines. This bearing contributes to consistent and high-quality fabric production.
- Common Brands: Rieter, Toyota Industries, Murata, Saurer, Picanol.
Printing Presses
- Role: Supports the rollers and other rotating components, enabling precise operation at high speeds. The bearing helps maintain the alignment and stability of the press, ensuring consistent print quality.
- Common Brands: Heidelberg, Komori, Manroland, KBA, Ryobi.
Conveyor Systems
- Role: Ensures smooth operation of the conveyor belt by supporting the rollers and managing the radial loads. The bearing helps reduce friction, wear, and energy consumption in conveyor systems.
- Common Brands: FlexLink, Dorner, Hytrol, Interroll, Rexnord.
RNU 205 Bearing Cross Reference and Interchange
| Brand | Bearing Model |
|---|---|
| SKF | RNU 205 ECP |
| FAG | RN205-E-XL-TVP2 |
| NTN | NU205EG1C3 |
| KOYO | NU205R |
| Amigo | RNU 205 |
This table summarizes the bearing cross-reference and interchange guide for the RNU 205 Single Row Cylindrical Roller Bearing. It provides equivalent bearing models from various manufacturers, ensuring compatibility and availability across different brands.
Choosing the Right Bearing
When comparing the Amigo RNU 205 bearing to other similar models, several key advantages make it the superior choice for various applications:
When to Choose RNU 205 Bearing?
- When high-speed operation is critical, and you need a bearing that can handle up to 16,000 r/min.
- When working in environments with temperatures as low as -30°C or as high as 110°C.
- When a lightweight bearing is preferred for reducing overall equipment weight.
- When looking for a cost-effective solution that doesn’t compromise on quality and performance.
The Amigo RNU 205 bearing offers a balance of high-speed capability, wide operating temperature range, and lightweight design, making it ideal for various industrial applications. Its non-metallic cage reduces friction and wear, enhancing the bearing’s longevity while maintaining a competitive price point.
| Feature | Amigo RNU 205 | SKF RNU 205 ECP | FAG RN205-E-XL-TVP2 | NTN NU205EG1C3 | KOYO NU205R |
|---|---|---|---|---|---|
| Cage Material | Non-metallic | Steel | Polyamide | Brass | Steel |
| Operating Temperature Range | -30 to 110°C | -20 to 100°C | -30 to 120°C | -25 to 110°C | -20 to 100°C |
| Dynamic Load Rating | 32.5 kN | 31.0 kN | 33.0 kN | 30.5 kN | 31.5 kN |
| Limiting Speed (Grease Lubrication) | 16,000 r/min | 15,000 r/min | 14,500 r/min | 15,500 r/min | 15,000 r/min |
| Weight | 0.25 kg | 0.28 kg | 0.26 kg | 0.29 kg | 0.27 kg |
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Why Amigo RNU 205 Bearings Are the Top Choice
We recently started using the Amigo RNU 205 bearings in our electric motors, and the performance has been fantastic. These bearings run just as smoothly as the SKF bearings we’ve used in the past. The installation was straightforward, and the durability has been excellent so far. Highly recommended!
Andrew Collins
I was skeptical about switching from our usual brand, but the Amigo RNU 205 bearings have really impressed me. We installed them in our gearbox systems, and they perform just like the NTN bearings we used before. The bearings are robust, handle high loads with ease, and are definitely worth the investment.
Jessica Miller
The Amigo RNU 205 bearing has proven to be a reliable choice for our conveyor systems. It operates smoothly under heavy loads, and the quality feels on par with the FAG bearings we used to use. We’ve seen no difference in performance, and the price point makes it a great value.
Mark Johnson
We replaced our old bearings with the Amigo RNU 205 in our printing presses, and the results have been excellent. These bearings perform just like the ones from SKF that we’ve relied on for years. The smooth operation and durability have met all our expectations, and we’ll definitely continue using Amigo bearings in the future.
Emily Davis
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