China Professional Linear/Ceramic/One Way/Slewing/Pillow Block/Thin Section/Engine/Fyh Bearing/China Wholesale/Auto Parts/Car Accessories/Motorcycle Parts/Distributor Nu 2309 Ecml connecting rod bearing

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
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing
Samples:
US$ 5/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

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Customized Request

linear bearing

Differences Between Linear Ball Bearings and Linear Roller Bearings

Linear ball bearings and linear roller bearings are two distinct types of linear bearings, each with its own design and characteristics. Here’s how they differ and when they are preferred:

  • 1. Design:

Linear ball bearings use ball bearings to provide rolling motion along the shaft. Linear roller bearings, on the other hand, use cylindrical or needle rollers for motion. Roller bearings have a larger contact area, distributing the load over a broader surface.

  • 2. Load Capacity:

Linear roller bearings typically have a higher load-carrying capacity compared to linear ball bearings. This makes them suitable for applications with heavier loads and greater force requirements.

  • 3. Friction and Smoothness:

Linear ball bearings offer lower friction and smoother motion due to the point contact between the balls and the shaft. Roller bearings may have slightly higher friction but can handle larger loads without sacrificing smoothness.

  • 4. Precision and Accuracy:

Linear ball bearings are often preferred for applications requiring high precision and accuracy. Their point contact provides precise positioning and repeatability, making them suitable for tasks like CNC machining and optical systems.

  • 5. Noise and Vibration:

Linear ball bearings tend to generate less noise and vibration due to their smoother rolling action. Roller bearings may produce slightly more noise but are still used in applications where noise is not a critical factor.

  • 6. Speed:

Linear ball bearings are well-suited for high-speed applications due to their low friction and smooth motion. Roller bearings are also capable of high speeds but may have slightly different characteristics.

  • 7. Cost:

Linear ball bearings are often more cost-effective for lower-load and precision applications. Linear roller bearings may be preferred for heavy-duty applications, which may justify their higher cost.

  • 8. Application Scenarios:

Linear ball bearings are commonly used in applications where precision, smooth motion, and accuracy are paramount, such as in CNC machinery, 3D printers, and optical systems. Linear roller bearings excel in applications with higher loads, such as heavy machinery, material handling, and industrial automation.

In summary, the choice between linear ball bearings and linear roller bearings depends on the specific requirements of the application. Each type has its strengths and weaknesses, and selecting the right type ensures optimal performance and longevity.

linear bearing

Recent Advancements in Linear Bearing Technology

Recent years have seen significant advancements in linear bearing technology, leading to improved performance, reliability, and versatility. Some notable developments include:

  • Nanotechnology: The integration of nanotechnology has allowed for the development of ultra-precision linear bearings with nanometer-scale accuracy. These bearings are ideal for applications requiring extremely fine movement and positioning.
  • Smart Bearings: Advances in sensor technology have enabled the creation of smart linear bearings that can monitor parameters like temperature, load, and vibration in real time. This data helps in predictive maintenance and optimizing operational efficiency.
  • Materials Innovation: New materials with enhanced properties, such as self-lubricating and corrosion-resistant coatings, have extended the lifespan of linear bearings and reduced the need for frequent lubrication and maintenance.
  • Compact Designs: Manufacturers are designing more compact linear bearings to suit space-constrained applications while maintaining high load capacity and precision.
  • Environmental Sustainability: There’s a growing emphasis on developing linear bearings with reduced environmental impact, including using eco-friendly materials and designs that require less energy to operate.
  • Integration of IoT: Linear bearings are being integrated into the Internet of Things (IoT) networks, allowing them to communicate with other equipment and systems for seamless automation and optimization.
  • Magnetic Levitation Bearings: Magnetic levitation (maglev) technology is being applied to linear bearings to create frictionless movement, reducing wear and enabling smoother and more precise motion.
  • Advanced Coatings: Coatings with enhanced wear resistance, low friction, and improved thermal properties are being applied to linear bearings, extending their service life in challenging environments.

These advancements have contributed to the expanding range of applications where linear bearings can be used, from aerospace and automotive industries to medical devices and consumer electronics. As technology continues to evolve, linear bearings will play a crucial role in enabling more efficient and precise motion control across various sectors.

linear bearing

Design Principles and Functionalities of Linear Bearings

Linear bearings are designed with specific principles to facilitate controlled linear motion along a single axis. These design principles contribute to their functionalities, making them essential components in various applications:

  • Rolling Elements:

Linear bearings typically feature rolling elements, such as balls or rollers, that move along a track or rail. These rolling elements reduce friction and enable smooth linear motion.

  • Guiding Mechanism:

Linear bearings incorporate a guiding mechanism to constrain the motion to a single axis. This guiding mechanism ensures that the linear bearing moves precisely along the desired path.

  • Load Distribution:

The design of linear bearings allows for effective distribution of loads, both in the radial and axial directions. This load distribution ensures stability and prevents excessive stress on individual components.

  • Rail or Track:

Linear bearings typically run along a rail or track that provides a smooth and accurate path for the rolling elements. The rail is designed to resist wear and maintain its precision over time.

  • Cage or Carriage:

Linear bearings use a cage or carriage to house the rolling elements and maintain their proper spacing. This arrangement ensures even load distribution and smooth movement.

  • Sealing and Lubrication:

Linear bearings often incorporate sealing mechanisms to protect the rolling elements from contaminants and to retain lubrication. Proper lubrication ensures smooth motion and extends the bearing’s lifespan.

  • Mounting Options:

Linear bearings are designed to be mounted in various ways, depending on the application’s requirements. Mounting options include flange-mounted, base-mounted, or end-supported configurations.

  • Adjustability:

Many linear bearings are designed with provisions for adjustment, allowing users to fine-tune the preload or clearance to optimize performance and minimize play.

  • Materials:

Linear bearings are constructed from materials that offer high wear resistance, durability, and corrosion resistance. Common materials include steel, stainless steel, and various engineering plastics.

  • Accessories:

Accessories such as end caps, seals, and lubrication systems can enhance the functionality and lifespan of linear bearings by providing protection and ensuring proper maintenance.

Functionalities of linear bearings include providing precise linear motion, guiding components along a defined path, minimizing friction, distributing loads, and maintaining stability. The design principles ensure reliable operation and make linear bearings indispensable in applications requiring controlled and accurate linear motion.

China Professional Linear/Ceramic/One Way/Slewing/Pillow Block/Thin Section/Engine/Fyh Bearing/China Wholesale/Auto Parts/Car Accessories/Motorcycle Parts/Distributor Nu 2309 Ecml   connecting rod bearingChina Professional Linear/Ceramic/One Way/Slewing/Pillow Block/Thin Section/Engine/Fyh Bearing/China Wholesale/Auto Parts/Car Accessories/Motorcycle Parts/Distributor Nu 2309 Ecml   connecting rod bearing
editor by CX 2024-05-15