Single Row Cylindrical Roller Bearings
Amigo single row cylindrical roller bearings are engineered with precision and available in a variety of designs, series, and sizes. The primary design distinctions within this category include:
- Cage design and material: Amigo bearings utilize advanced cage configurations and robust materials, optimizing performance under various operational conditions.
- Inner and outer ring flange configuration: The flange configurations of Amigo bearings are meticulously designed to enhance load distribution and minimize friction, thereby increasing bearing longevity and reliability.
- Low Friction Characteristics The open flange design, combined with the precision-engineered roller end design and advanced surface finish, enhances lubricant film formation, thereby reducing friction and increasing axial load capacity.
- Extended Service Life The logarithmic roller profile effectively minimizes edge stresses at the roller/raceway contact points and reduces sensitivity to misalignment and shaft deflection.
- Enhanced Operational Reliability The superior surface finish on the contact areas of the rollers and raceways facilitates the establishment of a hydrodynamic lubricant film, ensuring consistent performance.
- Separable and Interchangeable Components The design allows for separable components that are interchangeable, simplifying the processes of mounting, dismounting, and conducting maintenance inspections.
- High-Speed Capability The bearings are engineered with cage designs optimized for high speeds, rapid accelerations, and peak load conditions.
Single Row Cylindrical Roller Bearings are designed for high radial load capacity and are extensively utilized across various sectors. Their precision engineering and adaptability make them suitable for a multitude of applications, with availability in a diverse range of designs, variants, and sizes. Typical applications include:
- Electric motors
- Gearboxes
- Machine tools
- Pumps
- Compressors
- Wind turbines
- Conveyors
- Steel mills
- Agricultural machinery
- Mining equipment
Single Row Cylindrical Roller Bearings - Designs and Variants
Common Designs
Single row cylindrical roller bearings are available in various standard designs including N, NU, NJ, and NUP, where each design varies in the number of ribs or lips on the inner and outer rings.
Other Designs
Besides the common designs, some bearings are specially designed with modifications to meet specific industrial requirements, such as bearings with increased load capacity or enhanced heat resistance.
Other Variants
These bearings can also come in variants with different materials, seal types, or lubricants to suit specific operating environments, such as high-temperature or corrosive conditions.
Matched Bearings
Single row cylindrical roller bearings can be matched in pairs or groups to handle combined loads or to enhance the load distribution across a system, especially in large industrial machinery.
Single Row Cylindrical Roller Bearings Size Chart
| Designation | d [mm] | D [mm] | B [mm] |
|---|---|---|---|
| NU 2309 ECP | 45 | 100 | 36 |
| NU 309 ECJ | 45 | 100 | 25 |
| NU 309 ECM | 45 | 100 | 25 |
| NU 309 ECML | 45 | 100 | 25 |
| NU 309 ECP | 45 | 100 | 25 |
| NU 309 ECPH | 45 | 100 | 25 |
| NU 309 ECJ | 45 | 85 | 19 |
| NUP 209 ECM | 45 | 85 | 19 |
| NUP 209 ECP | 45 | 85 | 19 |
| NUP 209 ECML | 45 | 85 | 19 |
| NUP 209 ECPH | 45 | 85 | 19 |
| NUP 209 ECJ | 45 | 85 | 19 |
| NUP 209 ECM | 45 | 85 | 19 |
| NUP 2309 ECP | 45 | 100 | 36 |
| NUP 2309 ECML | 45 | 100 | 36 |
| NU 2309 ECP | 45 | 100 | 36 |
| NUP 309 ECML | 45 | 100 | 25 |
| NUP 309 ECJ | 45 | 100 | 25 |
| NUP 309 ECP | 45 | 100 | 25 |
| N 210 ECP | 50 | 90 | 20 |
| N 310 ECP | 50 | 110 | 27 |
| NJ 210 ECJ | 50 | 90 | 20 |
| NJ 210 ECM | 50 | 90 | 20 |
| NJ 210 ECML | 50 | 90 | 20 |
Recommended Reading
Frequently Asked Questions (FAQs)
Q: What are Single Row Cylindrical Roller Bearings used for?
A: They are used in applications requiring high radial load capacity, such as electric motors, gearboxes, and pumps.
Q: What types of loads can Single Row Cylindrical Roller Bearings handle?
A: These bearings are primarily designed to handle radial loads, but certain designs can also accommodate limited axial loads.
Q: What is the difference between NU and NUP type bearings?
A: NU type allows axial displacement in both directions, while NUP type has a fixed inner ring and supports axial loads in one direction.
Q: Can Single Row Cylindrical Roller Bearings be used in high-speed applications?
A: Yes, they are suitable for high-speed applications, especially with optimized designs like the ECP series.
Q: What materials are used in Single Row Cylindrical Roller Bearings?
A: They are typically made from high-quality steel for both rings and rollers, with options for different coatings for enhanced performance.
Q: How do I choose the correct size of a Single Row Cylindrical Roller Bearing?
A: You need to match the bearing dimensions (bore diameter, outer diameter, and width) with the application requirements.
Q: Are Single Row Cylindrical Roller Bearings suitable for oscillating motion?
A: Yes, they are commonly used in oscillating applications such as in construction and mining equipment.
Q: What lubrication is recommended for Single Row Cylindrical Roller Bearings?
A: They typically require grease or oil lubrication, depending on the speed and environmental conditions.
Q: What are the benefits of using Single Row Cylindrical Roller Bearings?
A: They offer high load capacity, durability, and are ideal for applications with limited axial displacement.