Product Description
Single row cylindrical roller bearings usually only bear radial force. Compared with ball bearings of the same size, the radial bearing capacity is increased by 1.5-3 times, with good rigidity and impact resistance. It is especially suitable for rigid supported shafts, short shafts, shafts with axial displacement caused by thermal elongation, and machine accessories requiring separate bearings for installation and disassembly. It is mainly used for large motors, machine tool spindles, front and rear engine support shafts, train and bus trunk shaft support, diesel engine crankshaft, automobile and tractor gearbox, etc.
| Designation | Size | dynamic | static | Reference speed | Limiting speed | ||
| d[mm] | D[mm] | B[mm] | C[kN] | C0[kN] | [r/min] | [r/min] | |
| NU 2209 ECJ | 45 | 85 | 23 | 85 | 81.5 | 9 000 | 9 500 |
| NU 2209 ECP | 45 | 85 | 23 | 85 | 81.5 | 9 000 | 9 500 |
| NU 2209 ECPH | 45 | 85 | 23 | 85 | 81.5 | 9 000 | 9 500 |
| NU 2309 ECML | 45 | 100 | 36 | 160 | 153 | 7 500 | 13 000 |
| NU 2309 ECP | 45 | 100 | 36 | 160 | 153 | 7 500 | 8 500 |
| NU 309 ECJ | 45 | 100 | 25 | 112 | 100 | 7 500 | 8 500 |
| NU 309 ECM | 45 | 100 | 25 | 112 | 100 | 7 500 | 8 500 |
| NU 309 ECML | 45 | 100 | 25 | 112 | 100 | 7 500 | 13 000 |
| NU 309 ECP | 45 | 100 | 25 | 112 | 100 | 7 500 | 8 500 |
| NU 309 ECPH | 45 | 100 | 25 | 112 | 100 | 7 500 | 8 500 |
| NUP 209 ECJ | 45 | 85 | 19 | 69.5 | 64 | 9 000 | 9 500 |
| NUP 209 ECM | 45 | 85 | 19 | 69.5 | 64 | 9 000 | 9 500 |
| NUP 209 ECML | 45 | 85 | 19 | 69.5 | 64 | 9 000 | 1 5000 |
| NUP 209 ECP | 45 | 85 | 19 | 69.5 | 64 | 9 000 | 9 500 |
| NUP 209 ECPH | 45 | 85 | 19 | 69.5 | 64 | 9 000 | 9 500 |
| NUP 2209 ECP | 45 | 85 | 23 | 85 | 81.5 | 9 000 | 9 500 |
| NUP 2309 ECML | 45 | 100 | 36 | 160 | 153 | 7 500 | 13 000 |
| NUP 2309 ECP | 45 | 100 | 36 | 160 | 153 | 7 500 | 8 500 |
| NUP 309 ECJ | 45 | 100 | 25 | 112 | 100 | 7 500 | 8 500 |
| NUP 309 ECML | 45 | 100 | 25 | 106 | 91.5 | 7 500 | 13 000 |
| NUP 309 ECNP | 45 | 100 | 25 | 112 | 100 | 7 500 | 8 500 |
| NUP 309 ECP | 45 | 100 | 25 | 112 | 100 | 7 500 | 8 500 |
| N 210 ECP | 50 | 90 | 20 | 73.5 | 69.5 | 8 500 | 9 000 |
| N 310 ECP | 50 | 110 | 27 | 127 | 112 | 6 700 | 8 000 |
| NJ 210 ECJ | 50 | 90 | 20 | 73.5 | 69.5 | 8 500 | 9 000 |
| NJ 210 ECM | 50 | 90 | 20 | 73.5 | 69.5 | 8 500 | 9 000 |
| NJ 210 ECML | 50 | 90 | 20 | 73.5 | 69.5 | 8 500 | 14 000 |
| NJ 210 ECP | 50 | 90 | 20 | 73.5 | 69.5 | 8 500 | 9 000 |
| NJ 210 ECPH | 50 | 90 | 20 | 73.5 | 69.5 | 8 500 | 9 000 |
| NJ 2210 ECJ | 50 | 90 | 23 | 90 | 88 | 8 500 | 9 000 |
About us
ZheJiang REET BEARING.CO.,LTD is a professional bearing manufacturer and exporter.
We have a wealth of technical.All producing processes are finished in our manufactory. As an ISO9001:2000 certified manufacturer,we will solve various problems in application and use of our bearings.
Our company is an authorized distributor of FAG, INA, CZPT and other world brand bearings.Our company has the right to self-export bearings and launches its own brand RTB.
Our bearing had been exported to more than 20 countries worldwide and are warmly welcomed.
We’re looking forward to your order.
FAQ
1.Is the company a production factory or a trading company?
ZheJiang REET BEARING CO.,LTD is a manufacturing enterprise focusing on bearings and integrating research, production and sales.
2.How many the MOQ of your company?
Depending on the size of the bearing, the MOQ is variable, if you are interested, you can contact me for a quote.
3.Does the company accept OEM or customized bearings?
In addition to standard products, we also supply non-standard and modified standard products for special application. Meanwhile, we provide OEM service.
4.Can the company provide free samples?
We can provide samples for free. You only need to provide shipping.
5.What are the company’s delivery terms?
We can accept EXW,FOB,CFR,CIF,etc. You can choose the 1 which is the most convenient cost effective for you.
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| Rolling Body: | Roller Bearings |
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| The Number of Rows: | Single |
| Outer Dimension: | Small and Medium-Sized (60-115mm) |
| Samples: |
US$ 6/Piece
1 Piece(Min.Order) | Order Sample |
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| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Prolonging the Life of Linear Bearings Through Maintenance Practices
Implementing proper maintenance practices is essential to extend the lifespan of linear bearings and ensure their optimal performance. Here are specific maintenance practices that can help:
- 1. Regular Lubrication:
Ensure that linear bearings are properly lubricated as recommended by the manufacturer. Adequate lubrication minimizes friction, reduces wear, and prevents premature failure.
- 2. Cleaning:
Regularly clean the linear bearing components to remove dirt, debris, and contaminants. Keeping the bearings clean reduces the risk of abrasive particles causing damage.
- 3. Inspection:
Periodically inspect linear bearings for signs of wear, damage, or misalignment. Look for uneven wear patterns, visible damage, or any unusual behavior during motion.
- 4. Alignment:
Ensure proper alignment of the linear components to prevent excessive stress on the bearings. Misalignment can lead to premature wear and reduced lifespan.
- 5. Proper Handling:
Handle linear bearings with care during installation and maintenance. Avoid dropping or impacting the bearings, which can cause internal damage.
- 6. Load Distribution:
Distribute loads evenly across multiple linear bearings if applicable. This prevents overloading individual bearings and extends their life.
- 7. Environmental Considerations:
Protect linear bearings from harsh environments, extreme temperatures, and corrosive substances. Use appropriate seals and enclosures to prevent contamination.
- 8. Regular Maintenance Schedule:
Create a maintenance schedule based on usage and manufacturer recommendations. Consistent maintenance helps identify issues early and prevents unexpected failures.
- 9. Proper Storage:
Store spare linear bearings in a clean and dry environment. Avoid exposure to moisture and dust, which can damage the bearings over time.
- 10. Consult Manufacturer Guidelines:
Follow the manufacturer’s guidelines and recommendations for maintenance, lubrication, and replacement intervals specific to the linear bearings you are using.
By implementing these maintenance practices, you can significantly prolong the life of linear bearings, reduce downtime, and ensure optimal performance in various applications.
Advancements in Linear Bearing Technology
Recent years have witnessed significant advancements in linear bearing technology, leading to improved performance and expanded applications. Some notable advancements include:
- Rolling Element Innovations:
Manufacturers are introducing new types of rolling elements, such as ceramic balls and specialized coatings, to enhance load capacity, reduce friction, and extend the lifespan of linear bearings.
- Lubrication Solutions:
Advanced lubrication techniques, including self-lubricating materials and greases with extended lifetimes, are being developed to optimize the performance of linear bearings while reducing maintenance needs.
- Smart and Sensor-Integrated Bearings:
Linear bearings with built-in sensors provide real-time data on temperature, vibration, and wear. This enables predictive maintenance, early fault detection, and optimization of bearing performance.
- Improved Corrosion Resistance:
New materials and coatings are being employed to enhance the corrosion resistance of linear bearings. This is particularly beneficial in environments where exposure to moisture and corrosive substances is a concern.
- Reduced Friction and Energy Consumption:
Advanced engineering and design techniques are leading to lower friction coefficients and reduced energy consumption in linear bearings. This not only improves efficiency but also contributes to sustainability efforts.
- High-Speed Capabilities:
Linear bearings capable of operating at higher speeds are being developed to meet the demands of applications requiring rapid and precise movements, such as in the semiconductor and electronics industries.
- Enhanced Sealing and Contaminant Management:
New sealing technologies are being employed to provide better protection against contaminants and debris. This is critical for applications where cleanliness is paramount.
- Integration with Industry 4.0:
Linear bearings are increasingly designed to be compatible with Industry 4.0 principles, allowing them to be integrated into digital manufacturing and automation systems for improved overall efficiency.
- Material Advancements:
Novel materials with improved mechanical properties, wear resistance, and temperature tolerance are being used in the production of linear bearings, expanding their operating capabilities.
These recent advancements in linear bearing technology are enabling industries to achieve higher levels of precision, efficiency, reliability, and predictive maintenance, making linear bearings an essential component of modern machinery and systems.
Factors to Consider When Selecting a Linear Bearing
Choosing the right linear bearing for a specific application involves considering several critical factors to ensure optimal performance and longevity:
- Load Requirements:
Determine the magnitude and direction of the loads the linear bearing will experience. Consider both static and dynamic loads to select a bearing with an appropriate load capacity.
- Precision and Accuracy:
For applications requiring precise positioning, choose linear bearings with high precision and low backlash. Factors like repeatability and positional accuracy are crucial.
- Speed and Acceleration:
Consider the speed and acceleration at which the linear bearing will operate. Higher speeds may require bearings with lower friction and better heat dissipation.
- Environmental Conditions:
Assess the environmental factors such as temperature, humidity, and exposure to contaminants. Choose linear bearings with suitable materials and seals to withstand the conditions.
- Space Constraints:
Take into account the available space for mounting the linear bearing. Some applications may have limited space, necessitating compact and lightweight bearing options.
- Maintenance Requirements:
Consider the maintenance needs of the bearing. Bearings with self-lubricating properties or easy access for lubrication can reduce maintenance frequency.
- Mounting and Configuration:
Choose a linear bearing that can be easily mounted and integrated into your system’s design. Consider factors like mounting orientation and available mounting surfaces.
- Life Expectancy:
Estimate the expected lifespan of the linear bearing based on the application’s requirements. Select a bearing with a suitable design life to prevent premature failures.
- Cost and Budget:
Balance the desired performance with the available budget. Opt for linear bearings that provide the necessary features without exceeding cost limitations.
- Accessories and Add-ons:
Consider any additional accessories or add-ons, such as seals, lubrication systems, or end caps, that can enhance the bearing’s performance and protection.
- Manufacturer and Supplier:
Choose reputable manufacturers and suppliers that offer reliable products and good customer support. Quality assurance and technical assistance are essential.
Overall, a comprehensive assessment of these factors will help you select the most suitable linear bearing for your specific application, ensuring optimal performance, longevity, and cost-effectiveness.
editor by CX 2024-04-22