China manufacturer CZPT Factory Bearing High Performance Na4915 Needle Roller Bearing bearing example

Product Description

 

Product Parameters

Item Value
Type needle roller bearing 
Structure cage 
Applicable Industries Energy & Mining
Brand Name IKO
Model Number

HK/NK/NA/FY/F/BK/AXK/K/NF/CSK/RNA/NKI/TRA/BR

Precision Rating P0 P4 P5 P6
Seals Type OPEN
Number of Row Single Row 
Place of Origin China

 

Needle roller bearing is a bearing unit composed of machined outer ring & inner ring,cage and needle roller assembly featuring small section height,big load capacity & rigidity,compact structure and small size,high rotating accuracy with the structure of disposed inner ring.

Needle roller bearings have large bearing capacity and are suitable for mounting support structures with limited dimensions. The surface of the journal is hardened as the rolling surface, and the bearing is pressed into the seat hole without axial positioning.

Needle roller bearing is characterized by multiple structures,broad adaptability and easy installation.

Product Display

 

Model d mm D mm H mm W kg
NA4900 10 22 13 0.571
NA4901 12 24 13 0.026
NA4902 15 28 13 0.034
NA4903 17 30 13 0.04
NA4904 20 37 17 0.075
NA4905 25 42 17 0.099
NA4906 30 47 17 0.101
NA4907 35 55 20 0.186
NA4908 40 62 22 0.249
NA4909 45 68 22 0.294
NA4910 50 72 22 0.298
NA4911 55 80 25 0.393
NA4912 60 85 25 0.426
NA4913 65 90 25 0.456
NA4914 70 100 30 0.728
NA4915 75 105 30 0.773
NA4916 80 110 30 0.819
NA4917 85 120 35 1.25
NA4918 90 125 35 1.312
NA4919 95 130 35 1.371
NA4920 100 140 20 1.9
NA4922 110 150 40 2.07

 

Company Profile

 

ZheJiang Ponchi New Energy Technology Co., Ltd. is establised in2571, The company is mainly committed to the promotion and sales of world-famous bearing brands.Over the years it has established good cooperative relations with many companies,with a wide range of products lt is used in machinery, mining,steel.electric paper, automobile and other fields.With reasonable commodity price,fast logistics delivery,high-quality service, and strong technical force, the company has won the support and trustof customers and truly achieved a CZPT situation between the company and customers.”Customer’s requirement is our pursuit” the company will always adhere to the new concept of people-oriented, customer service, keeping pace with the times, development and innovation”.

Customer feedback

 

Certifications

Deep groove ball bearing
Spherical roller bearing
Cylindrical roller bearing
Angular contact ball bearing
Linear bearing
Pillow block bearin

FAQ

1. Who are we?
We are based in ZheJiang , China, start from 2019,sell to South America(30.00%),Mid East(25.00%),North
America(20.00%),Africa(15.00%),Southeast Asia(10.00%). There are total about 1000+ people in our office.

2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.What can you buy from us?
bearing,ball bearing,Roller bearing,Deep groove ball bearing,Tapered roller bearing

4. Why should you buy from us not from other suppliers?
We have more than 20 years of production experience, we have enough inventory to provide you with a full range of bearings, we
have efficient delivery speed, and can provide you with the packaging you need

5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Cage: With Cage
Rows Number: Single
Load Direction: Radial Bearing
Style: Without Outer Ring, With Outer Ring, Without Inner Ring, With Inner Ring
Material: Cast Iron
Type: Open
Samples:
US$ 11.62/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

needle bearing

Role of Needle Bearings in Compact Applications and Limited Space

Needle bearings are essential components in applications that require compact designs and have limited available space. Their unique design characteristics make them particularly suitable for such applications, where traditional bearings might not be feasible. Here’s the role of needle bearings in compact applications:

  • Reduced Radial Profile:

Needle bearings have a compact radial profile due to their cylindrical rollers with a small diameter-to-length ratio. This design allows them to accommodate high radial loads in a confined space without sacrificing load-carrying capacity.

  • Space Optimization:

Applications with limited space, such as small machinery, automotive components, and medical devices, benefit from needle bearings’ ability to provide efficient load support while minimizing the space required.

  • Lightweight Design:

Needle bearings’ lightweight construction is advantageous for applications where minimizing weight is crucial. Their compact size contributes to overall system weight reduction.

  • High Load Capacity:

Despite their small size, needle bearings can handle substantial radial and axial loads. This capability is essential for applications that demand high load-carrying capacity within limited space constraints.

  • Efficient Energy Transfer:

Needle bearings’ efficient energy transfer properties make them suitable for compact applications involving oscillating or reciprocating motions, where minimal energy loss is essential.

  • Precision Movements:

Needle bearings facilitate precise and controlled movements in compact applications, contributing to accurate positioning and operation.

  • Automotive Components:

Needle bearings are used in various automotive components, such as transmissions, engine components, and steering systems, to ensure reliable performance within the limited space available.

  • Robotics and Automation:

In robotics and automation, where space is often restricted, needle bearings enable smooth and accurate movement in robotic arms, pick-and-place systems, and linear actuators.

  • Medical Instruments:

Medical devices and instruments, such as surgical tools and diagnostic equipment, require precise movement in confined spaces. Needle bearings facilitate this precise motion.

  • Consumer Electronics:

Compact electronic devices, such as hard drives, printers, and scanners, benefit from needle bearings’ ability to provide efficient movement and load support in small spaces.

Overall, needle bearings’ compact design, high load capacity, and efficient operation make them invaluable in applications where limited space is a critical consideration. Their contribution to achieving optimal performance within constrained dimensions is essential for various industries and technologies.

needle bearing

Challenges and Solutions for Preventing Needle Bearing Misalignment

Needle bearings, like all precision bearings, are susceptible to misalignment, which can lead to reduced performance, premature wear, and even bearing failure. Misalignment occurs when the bearing’s inner and outer rings are not properly aligned with each other or with the shaft and housing. Here are the challenges posed by needle bearing misalignment and the solutions to prevent it:

  • Challenge: Operating Conditions:

Highly dynamic applications, heavy loads, and vibrations can lead to misalignment over time, impacting bearing performance.

  • Solution: Adequate Load Distribution:

Choose a bearing with sufficient load-carrying capacity for the application’s demands. Distributing the load across multiple bearings can reduce individual bearing stress and mitigate misalignment.

  • Challenge: Shaft and Housing Tolerances:

Deviation from proper shaft and housing tolerances can result in misalignment.

  • Solution: Proper Installation:

Ensure the shaft and housing are within the specified tolerances during installation. Proper fits and clearances minimize the risk of misalignment.

  • Challenge: Shaft Deflection:

Shaft deflection due to heavy loads or improper supports can cause misalignment.

  • Solution: Stiff Supports:

Use stiff supports to minimize shaft deflection. This can involve using larger bearings, selecting appropriate support structures, or adding additional supports.

  • Challenge: Thermal Expansion:

Temperature changes can cause components to expand or contract, potentially leading to misalignment.

  • Solution: Thermal Management:

Consider the temperature range the bearing will operate in and select materials and lubricants that can handle these conditions. Providing adequate ventilation or cooling systems can also help manage temperature-related misalignment.

  • Challenge: Improper Handling and Installation:

Misalignment can occur if the bearing is mishandled during installation or if it’s not mounted correctly.

  • Solution: Precise Installation:

Follow proper installation procedures, including using appropriate tools, ensuring accurate alignment, and applying proper preload and torque settings.

  • Challenge: Lack of Lubrication:

Insufficient lubrication can cause increased friction and heat, potentially leading to misalignment.

  • Solution: Proper Lubrication:

Regularly lubricate the bearing according to the manufacturer’s recommendations. Proper lubrication minimizes friction and reduces the risk of misalignment caused by overheating.

  • Challenge: Shock and Impact Loads:

Sudden shock loads or impacts can disrupt bearing alignment.

  • Solution: Damping and Shock Absorption:

Use damping elements or shock-absorbing systems to mitigate sudden loads. This can help protect the bearing from misalignment due to shock forces.

In conclusion, preventing needle bearing misalignment requires a combination of proper design considerations, precise installation practices, and suitable operating conditions. By understanding the challenges posed by misalignment and implementing the appropriate solutions, you can ensure the optimal performance and longevity of needle bearings in various applications.

needle bearing

Impact of Proper Lubrication on Performance and Lifespan of Needle Bearings

Proper lubrication is crucial for ensuring the optimal performance, longevity, and reliability of needle bearings. Lubrication plays a vital role in reducing friction, preventing wear, and protecting against corrosion. Here’s how proper lubrication impacts the performance and lifespan of needle bearings:

  • Friction Reduction:

Lubrication forms a protective layer between the rolling elements and raceways of the bearing. This reduces friction and minimizes the energy lost to heat generation during operation. Lower friction levels result in smoother motion, reduced wear, and increased energy efficiency.

  • Wear Prevention:

Lubrication forms a barrier that prevents direct metal-to-metal contact between the bearing components. This protective layer prevents wear and extends the lifespan of both the bearing and related components, reducing the likelihood of premature failure.

  • Corrosion Protection:

Lubricants create a barrier that shields the bearing from environmental factors such as moisture, contaminants, and corrosive substances. This protection prevents rust and corrosion, ensuring the integrity of the bearing’s surfaces and prolonging its service life.

  • Heat Dissipation:

Proper lubrication helps dissipate the heat generated during operation, preventing overheating that can lead to premature bearing failure. Effective heat dissipation contributes to stable performance and reduces the risk of thermal damage.

  • Noise Reduction:

Adequate lubrication helps dampen vibrations and reduces the noise generated during bearing operation. This is particularly important in applications where noise levels must be minimized, such as in precision equipment or consumer electronics.

  • Improved Sealing Effectiveness:

Lubrication can enhance the effectiveness of seals and shields in preventing contaminants from entering the bearing. This extends the bearing’s lifespan by reducing the risk of contamination-related damage.

  • Extended Service Life:

Proper lubrication reduces wear and prevents damage, contributing to the extension of the bearing’s overall service life. This leads to longer intervals between maintenance and replacements, reducing downtime and maintenance costs.

  • Consistent Performance:

Adequate lubrication helps maintain consistent performance over time. It ensures that the bearing operates within its designed parameters, delivering the expected motion, load capacity, and efficiency throughout its service life.

  • Reduced Maintenance:

Regular lubrication maintenance can significantly extend the bearing’s lifespan, reducing the need for frequent replacements and repairs. This can result in cost savings and increased operational efficiency.

  • Prevention of Catastrophic Failures:

Insufficient lubrication or using the wrong lubricant can lead to catastrophic bearing failure. Proper lubrication practices prevent these failures, enhancing equipment reliability and operator safety.

In conclusion, proper lubrication is essential for maximizing the performance, durability, and reliability of needle bearings. It reduces friction, prevents wear, protects against corrosion, and contributes to stable and efficient bearing operation throughout its service life.

China manufacturer CZPT Factory Bearing High Performance Na4915 Needle Roller Bearing   bearing exampleChina manufacturer CZPT Factory Bearing High Performance Na4915 Needle Roller Bearing   bearing example
editor by CX 2024-03-07

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