China Custom Bearing Roller Bearing Wholesale Price High Quality Flat Needle Roller Bearing Bk2212 for Machinery double row ball bearing

Product Description

Bearing Roller bearing Wholesale price high quality flat needle roller bearing BK2212 for machinery


Product Name Needle Roller Bearing
Material Chrome Steel, GCR15
Size d:3-110mm,D:9-240mm
Precision PO,P6,P5,P4,P2 
Cage Steel Cage,copper Cage,nylon Cage
Used For Gearboxes of machine tools, Automobiles, Motorcycles, Textile machinery, printing machinery,
forage machinery, agricultural machinery, numerical control equipment
Warranty 1 year
Brand R&Z or OEM 


Needle roller bearing details:


Gearboxes of machine tools, Automobiles, Motorcycles, Textile machinery, printing machinery,forage machinery, agricultural machinery, numerical control equipment.


Our package

* Industrial pakage+outer carton+pallets
* sigle box+outer carton+pallets
* Tube package+middle box+outer carton+pallets
* According to your requirments


1.Samples quantity: 1-10 pcs are available.
2.Free samples: It depends on the model NO., material and quantity. Some of the bearings samples need client to pay
samples charge and shipping cost.

The customized LOGO or drawing is acceptable for us.

1.MOQ: 10 pcs mix different standard bearings.
2.MOQ:  2000 pcs customized your brand bearings.

1.We can printing our brand (logo,artwork) on the shield or make your own brand on the shield.
2.We can custom your packaging according to your design

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Cage: With Cage
Rows Number: Single
Load Direction: Radial Bearing
Style: With Outer Ring
Material: Bearing Steel
Type: Closed
US$ 0.01/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

needle bearing

Contribution of Needle Bearings to Smooth Operation of Textile Machinery

Needle bearings play a crucial role in ensuring the smooth and efficient operation of various types of textile machinery. The unique design characteristics of needle bearings make them well-suited for the demanding and dynamic environments found in textile manufacturing processes. Here’s how needle bearings contribute to the smooth operation of textile machinery:

  • High Load Capacity:

Textile machinery often involves the handling of heavy loads, such as yarn packages, fabric rolls, and tensioning mechanisms. Needle bearings’ ability to accommodate high radial and axial loads ensures reliable support and smooth movement of these loads.

  • Precision Movement:

Textile processes require precise and controlled movement, such as guiding threads, adjusting tension, and controlling weaving patterns. Needle bearings provide accurate motion control, enabling the machinery to perform intricate tasks with precision.

  • Reduced Friction:

Efficient textile production relies on minimizing friction and energy losses. Needle bearings’ low-friction design reduces energy consumption and heat generation, contributing to the overall efficiency of the machinery.

  • High Speeds:

Textile machinery often operates at high speeds, requiring components that can withstand the resulting centrifugal forces and maintain stable operation. Needle bearings are designed to handle high rotational speeds, ensuring smooth performance without compromising stability.

  • Compact Design:

Textile machinery is frequently designed with limited space considerations. Needle bearings’ compact radial profile makes them suitable for applications where space is at a premium, allowing machinery to maintain efficient layouts.

  • Oscillating and Reciprocating Motion:

Textile processes involve various types of motion, including oscillation and reciprocation. Needle bearings are adept at handling these dynamic motions, ensuring consistent and smooth movement of components.

  • Longevity and Durability:

Textile manufacturing can be demanding on components due to frequent starts, stops, and dynamic loads. Needle bearings’ robust construction and ability to distribute loads evenly contribute to extended service life and reduced maintenance requirements.

  • Varied Applications:

Needle bearings are used in a range of textile machinery, including spinning machines, weaving looms, knitting machines, winding machines, and fabric inspection equipment. Their adaptability to different applications enhances the overall functionality of textile processes.

Whether in spinning, weaving, knitting, or other stages of textile production, needle bearings are integral to the seamless operation of textile machinery. Their combination of load-carrying capacity, precision, and durability ensures that textile manufacturers can achieve consistent and high-quality results while maintaining operational efficiency.

needle bearing

Differences Between Needle Roller Bearings and Other Roller Bearings

Needle roller bearings, despite belonging to the broader category of roller bearings, have distinct design and functional differences compared to other types of roller bearings. These differences stem from their unique structure and intended applications. Here’s how needle roller bearings differ from other roller bearings in terms of design and functionality:

  • Roller Length and Diameter:

Needle roller bearings have relatively longer and thinner rollers (needle rollers) compared to other roller bearings. This design allows them to provide a larger surface area for load distribution while maintaining a compact size.

  • Load Distribution:

Due to their elongated shape, needle rollers distribute loads over a larger contact area. This enables needle bearings to handle high radial loads, making them well-suited for applications with limited space and high load requirements.

  • High Load Capacity:

Needle roller bearings excel in handling high radial loads, making them suitable for applications where standard ball bearings or spherical roller bearings may not have sufficient load-carrying capacity.

  • Space Optimization:

Needle bearings are designed to be compact, making them ideal for applications with limited installation space. Their slender profile allows for efficient use of available space.

  • Friction and Efficiency:

While needle roller bearings have higher friction due to their point contact design, they still offer efficient motion and load handling. Other roller bearings, such as cylindrical or spherical roller bearings, offer reduced friction but may have larger dimensions.

  • Accuracy and Precision:

Needle bearings are known for their high accuracy and precision, making them suitable for applications that require controlled and accurate motion, such as in medical equipment or machine tools.

  • Radial and Axial Clearance:

Needle roller bearings often have tighter radial and axial clearance compared to other roller bearings, allowing for precise control over internal clearances and minimizing play.

  • Operating Speeds:

Needle roller bearings may have lower operating speeds compared to other roller bearings due to their point contact design. Other roller bearings, such as cylindrical or spherical roller bearings, offer smoother rolling and are better suited for higher-speed applications.

  • Applications:

Needle roller bearings are commonly used in applications requiring high radial load capacity and compact size, such as automotive transmissions, industrial machinery, and aerospace systems. Other roller bearings like cylindrical, spherical, or tapered roller bearings are employed in applications with varying load and speed requirements.

In summary, needle roller bearings differentiate themselves through their elongated rollers, high load capacity, compactness, accuracy, and suitability for high-load applications with limited space. These characteristics make them an essential choice for specific industries and applications that demand reliable load handling in a confined space.

needle bearing

Factors to Consider When Selecting a Needle Bearing for a Specific Application

Choosing the right needle bearing for a specific application requires careful consideration of various factors to ensure optimal performance, reliability, and longevity. Needle bearings come in different sizes, designs, and materials, and selecting the appropriate one depends on the application’s requirements. Here are the key factors to consider when selecting a needle bearing for a specific application:

  • Load Requirements:

Assess the magnitude and direction of the loads the bearing will experience. Consider both radial and axial loads and choose a needle bearing with a load capacity that matches or exceeds the application’s demands.

  • Operating Conditions:

Take into account the environmental conditions the bearing will operate in, including temperature, humidity, and exposure to contaminants. Choose a needle bearing with appropriate lubrication and sealing options to ensure reliable performance under the given conditions.

  • Installation Space:

Measure the available installation space to determine the bearing’s size and dimensions. Ensure that the selected needle bearing can fit within the allocated space without causing interference or alignment issues.

  • Speed and Accuracy:

Consider the required rotational speed and level of precision for the application. High-speed applications may require needle bearings with low friction and reduced heat generation, while precision applications demand accurate and smooth motion.

  • Alignment and Tolerance:

Check if the application requires specific alignment or tolerance levels. Some needle bearings are designed to accommodate misalignment to a certain extent, while others may require precise alignment for optimal performance.

  • Service Life:

Evaluate the expected service life of the bearing based on the application’s load cycles and operating conditions. Select a needle bearing with a service life that aligns with the desired maintenance intervals and equipment uptime.

  • Material and Coatings:

Choose the appropriate bearing material and coatings based on factors such as corrosion resistance, wear resistance, and operating temperature. Consider factors like the type of lubrication used and the compatibility with the application’s environment.

  • Lubrication Requirements:

Determine the lubrication method and interval required for the bearing. Some needle bearings come pre-greased, while others may need periodic lubrication. Select a bearing that matches the lubrication strategy of the application.

  • Budget and Cost-Effectiveness:

Consider the budget constraints of the project and balance the cost of the bearing with its expected performance and durability. While higher-quality bearings may have a higher upfront cost, they can lead to cost savings over the long term.

  • Application-Specific Features:

Some applications may require specific features, such as seals, cages, or special coatings. Evaluate whether these features are necessary for the intended application and select a needle bearing that offers the required specifications.

By carefully evaluating these factors and aligning them with the application’s requirements, you can choose the most suitable needle bearing that will contribute to the overall performance and reliability of the equipment or machinery.

China Custom Bearing Roller Bearing Wholesale Price High Quality Flat Needle Roller Bearing Bk2212 for Machinery   double row ball bearingChina Custom Bearing Roller Bearing Wholesale Price High Quality Flat Needle Roller Bearing Bk2212 for Machinery   double row ball bearing
editor by CX 2024-03-26

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