Product Description

ACTIVE-POWER INDUSTRIES Cylindrical Roller Bearings D060014939 222 China Suppliers NU202M Roller Bearing 15X31X11 Cylindrical Roller Bearing

Product Description

The internal structure of the cylindrical roller bearing adopts rollers arranged in parallel, and spacers or spacers are installed between the rollers, which can prevent the rollers from tilting or friction between the rollers, and effectively prevent the increase of the rotational torque.

According to whether the ring has ribs, it can be divided into single-row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double-row cylindrical roller bearings such as NNU and NN. The bearing has a detachable inner ring and outer ring.

Features
1. The rollers and the raceway are in line contact or trimmed line contact, with large radial bearing capacity, suitable for bearing heavy loads and impact loads.
2. The friction coefficient is small, suitable for high speed, and the limit speed is close to that of deep groove ball bearings.
3. N-type and NU-type can move axially, can adapt to changes in the relative position of the shaft and the shell caused by thermal expansion or installation errors, and can be used as free-end supports.
4. The processing requirements for the shaft or seat hole are relatively high. After the bearing is installed, the relative deviation of the axis of the outer ring must be strictly controlled to avoid contact stress concentration.
5. The inner or outer ring can be separated for easy installation and removal

Application:
Large and medium-sized electric motors, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, gearboxes, rolling mills, vibrating screens, lifting and transporting machinery, etc.

Product Parameters

Product Name Cylindrical Roller Bearing
Structure Cylindrical Roller Bearing
Applicable Industries Machinery repair shop, manufacturing plant, automobile manufacturing, agricultural machinery
Size 30mm-800mm
Accuracy Grade P0 P6 P5 P4
Seal Type Open
Retainer Type Copper / Nylon / Steel
Origin ZheJiang , China
Service OEM / ODM or customer logo is acceptable

Cylindrical Roller Bearing
NU106M NU202M N304E NJ4050
NU1007M NJ202M NU304 N4050
NJ1007M N203E NJ304E N407M
N1008M NU203E N305 N408M
NU1008M NJ203E NF305 N409M
NJ1008M NJ203E NU305 NJ410
NU1009M N204E NJ305 NU414M
NU1571M NU204E N306 NJ414M
NJ1571M NJ204E NU306E N416M
NU1011M N205E NJ306E N417M
NJ1011M NF205 N307 NU417M
NU1012M NU205E NF307EVNU307 NJ417M
NJ1012M NJ208E NU307M NU418M
NU1013M NCL205V NJ307M N2310EM
NJ1013M N2066E N308EM NU2310E
N1014M NF206E NF308EM NJ2310E
NU1014M NU206E NU308EM NU2311
NJ1014M NJ206E NJ308EM NJ2311
NU1015M NCL206V N309E N2312E
NJ1015M N207 NF309E NU2312E
NU1016M NF207E NU309E NJ2312E
NJ1016M NU207 NJ309E NJ2314E
NU1017M NJ207 N310E N2315EM
NJ1017M N208 N310EM NU2315E
NU1018M NJ208E NF310E NJ2315E
NJ1018M N209E NU310E N2316EM
NU1019M NF208E NJ310E NU2316E
NJ1019M NU209E N311E NJ2316E
NU1571M NJ209E NU311E NU2317E
NJ1571M N210E NJ311E NJ2317E
NJ1571M NF210E NJ311E N2318EM
NU1571M NU210E N312E NU2318E
NJ1571M N211E NF312E NJ2318E
NU1026M NF211E NU312E NU2319E
NJ1026M NU211E NJ312E NJ2319E
NU1571M NJ211E N313E N2320EM
NJ1571M N212 NF313E N2322EM
NU1030M NU212 NU313E NU2322EM
NJ1030M NJ212E NJ313E NJ2322EM
NU1032M N213E NUP313ENV  
NJ1032M NU213E N314E  
NU1034M NJ213E NF314E  
NU10136EM N214E NU314EM  
NJ1036EM NF214E NJ314E  
NJ1038M NU214E N315E  
NJ1038M NJ214E NU315E  
NU1040M N215E NJ315E  
NJ1040M NF215E N316E  
NU1052M NU215E NU316E  
NJ1052M NJ215E NJ316E  
  N216 N317E  
  NU216 NU317E  
  NJ216 NJ317E  
  N217E N318E  
  NU217E NU318E  
  NJ217E NJ318E  
  N218E N319E319EM  
  NU218E NU319EM  
  NJ218E NJ319EM  
  N219 N320EM  
  NU219 NU320EM  
  NJ219 NJ320EM  
  N220E NU321EM  
  NU222E NJ321EM  
  NJ220E NJ321E  
  N222EMK N322E  
  NJ222E NU322EM  
  N224E NJ322E  
  NJ224E N324E  
  N226E NU324E  
  NF226EM NJ324E  
  NU226E N326EM  
  NJ226E NU326EM  
  NU228E NJ326EM  
  NU228E N328EM  
  NJ228E NU328EM  
  N230EM NJ328EM  
  NU230E N332EM  
  NJ230E NU332EM  
  N232E NJ332EM  
  NU232E N334EM  
  NJ232E NU334EM  
  N234E NJ334EM  
  NU234E N336EM  
  NJ234E NU336EM  
  N236E NJ336EM  
  NU236E N344EM  
  NJ236E NU344EM  
  N238E NJ344EM  
  NU238E    
  NJ238E    
  N240EM    
  NJ240EM    
  N244EM    
  NU244EM    
  NJ244EM    

Company Profile

HangZhou Active-Power Industrial. is located in HangZhou, ZheJiang , China. The factory has been committed to the production research and development of bearings for more than 20 years. We support OEM and ODM bearing customization.

The main products are: Deep Groove Ball Bearing Taper Roller Bearing Tapered Roller Bearing Auto Wheel Hub Bearing Cylindrical Roller Bearing Spherical Roller Bearing Motor Bearing Needle Roller Bearing Angular Contact Ball Bearing.

FAQ

Q1:What is your Before-sales Service?
1>. Offer to bear related consultation about technology and application;

2>.Help customers with bearing choice, clearance configuration, product” life, and reliability analysis;

3>. Offer highly cost-effective and complete solution program according to site conditions;

4>. Offer localized program on introduced equipment to save running cost

Q2: What is your After-sales Service?
1>. Offer training about bearing installation and maintenance;

2>.Help customers with trouble diagnosis and failure analysis;

3>. Visit customers regularly and feedback on their rational suggestions and requirements to the company.

Q3: How about your company’s strength?
1>.FREE SAMPLES:
contact us by email or trade manager, we will send the free samples according to your request. 

2>. World-Class Bearing:
We provide our customers with all types of indigenous roller bearings of world-class quality.

3>.OEM or Non-Stand Bearings: 
Any requirement for Non-standard roller bearings is Easily Fulfilled by us due to our vast knowledge and links in the industry. 

4>.Genuine products With Excellent Quality: 
The company has always proved the 100% quality products it provides with genuine intent.

5>. After-Sales Service and Technical Assistance: 
The company provides after-sales service and technical assistance as per the customer’s requirements and needs.

6>.Quick Delivery: 
The company provides just-in-time delivery with its streamlined supply chain.

7>.Cost Saving: 
We provide long-life, shock-resistant, and high-reliability roller bearings with excellent quality and better performance.
Resulting in increased cost savings.

Q4: What will we do if you are not satisfied with the product?
A: If have any abnormal, Please contact us at the first time, and we will immediately process

Q5: How long will you respond to our problems?
A: We will respond within 1 hour. 24 hours to solve your problem

Q6: Is optional lubrication provided?
A: We can offer a wide range of oils and greases for a variety of applications. Please contact our engineer for technical
assistance with any special requirements

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Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Extra Large (440mm)
Material: Plastic
Spherical: Non-Aligning Bearings
Load Direction: Axial Bearing
Samples:
US$ 0/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

tapered roller bearing

How do Tapered Roller Bearings Contribute to the Operation of Heavy Machinery like Construction Equipment?

Tapered roller bearings play a vital role in ensuring the efficient and reliable operation of heavy machinery, including construction equipment. These bearings are designed to handle heavy loads, shock, and impact forces commonly encountered in construction and industrial applications. Here’s how tapered roller bearings contribute to the operation of heavy machinery like construction equipment:

  • Load Handling Capacity:

Construction equipment experiences substantial static and dynamic loads due to the weight of materials, lifting operations, and ground engagement. Tapered roller bearings are engineered to withstand high loads and distribute them evenly across the bearing components.

  • Shock and Impact Resistance:

Construction sites are filled with uneven terrain and obstacles, subjecting machinery to sudden shocks and impacts. Tapered roller bearings’ robust design and geometry enable them to absorb and manage these forces, reducing the risk of premature failure.

  • Rotational Smoothness:

Heavy machinery requires smooth and precise movement for accurate positioning and operation. Tapered roller bearings facilitate low-friction rotation, reducing resistance and ensuring smooth motion even under heavy loads.

  • Axial Load Capability:

Construction equipment often experiences axial loads caused by uneven terrain, steering, or lifting operations. Tapered roller bearings are well-suited to handle both radial and axial loads, ensuring stability and optimal performance.

  • Durability in Harsh Environments:

Construction sites expose equipment to dust, debris, moisture, and extreme temperatures. Tapered roller bearings are designed with seals and protective features that keep contaminants out and maintain lubrication integrity, enhancing bearing longevity.

  • Long Service Life:

The robust construction and high-quality materials used in tapered roller bearings contribute to their extended service life in demanding environments. This reduces the frequency of maintenance and replacement, minimizing downtime.

  • Consistent Performance:

Tapered roller bearings provide consistent and reliable performance over their operational life, ensuring predictable machinery behavior and precise control.

  • Enhanced Safety:

Reliable bearing performance is crucial for the safety of operators and bystanders. Properly functioning tapered roller bearings prevent unexpected failures that could lead to accidents or equipment damage.

  • Compatibility with Heavy Loads:

Construction machinery often involves complex multi-axis loading scenarios. Tapered roller bearings’ ability to accommodate axial and radial loads makes them suitable for these demanding applications.

  • Versatility in Equipment Types:

Tapered roller bearings are used in a wide range of construction equipment, including excavators, bulldozers, loaders, cranes, and more, contributing to the reliable operation of various machinery types.

Overall, tapered roller bearings enhance the performance, durability, and safety of heavy machinery used in construction applications, making them an indispensable component for the industry.

cylindrical roller bearing

Are there different cage materials commonly used in cylindrical roller bearings?

Yes, there are different cage materials commonly used in cylindrical roller bearings. The cage, also known as a retainer or separator, is a critical component that holds the cylindrical rollers in position and maintains their proper spacing. The choice of cage material depends on various factors such as application requirements, operating conditions, and the desired balance between strength, durability, and cost. Let’s explore some of the commonly used cage materials in cylindrical roller bearings:

  • Steel:

Steel cages are widely used in cylindrical roller bearings due to their excellent strength, durability, and wear resistance. Steel cages can withstand high operating temperatures and are suitable for applications with heavy loads and high-speed operation. The steel cages are typically made from low carbon steel, and in some cases, high-strength brass-coated steel or other alloyed steels are used for enhanced performance in demanding environments.

  • Brass:

Brass cages offer good strength, high corrosion resistance, and excellent heat dissipation properties. They are commonly used in cylindrical roller bearings for applications that require resistance to harsh operating conditions, such as high temperatures or corrosive environments. Brass cages are particularly suitable for slow to moderate speed applications where their excellent thermal conductivity can help dissipate heat effectively.

  • Polyamide (Nylon):

Polyamide cages, often referred to as nylon cages, are lightweight, corrosion-resistant, and have good wear properties. They offer low friction and allow for smooth rolling motion of the cylindrical rollers. Polyamide cages are commonly used in applications where reducing weight and inertia are important considerations, such as automotive and aerospace industries. They are also suitable for applications with moderate speeds and operating temperatures.

  • Phenolic Resin:

Phenolic resin cages are known for their high strength, low friction, and excellent dimensional stability. These cages provide good resistance to wear, chemicals, and heat. Phenolic resin cages are commonly used in high-speed cylindrical roller bearings where low cage weight and inertia are crucial for reducing friction and maintaining stable operation at high rotational speeds.

  • Other Materials:

In addition to the above-mentioned materials, other cage materials such as aluminum alloys, stainless steel, and engineered plastics may be used in specific applications. Aluminum alloy cages offer lightweight properties and good corrosion resistance, making them suitable for certain industries. Stainless steel cages provide high corrosion resistance and are used when the bearing operates in aggressive environments. Engineered plastics, such as PEEK (polyether ether ketone) or PTFE (polytetrafluoroethylene), are used for their self-lubricating properties, chemical resistance, and low friction characteristics.

The choice of cage material depends on factors such as load, speed, temperature, lubrication, and environmental conditions. Bearing manufacturers carefully select the appropriate cage material to ensure optimal performance, longevity, and reliability of the cylindrical roller bearing in a specific application.

cylindrical roller bearing

How do cylindrical roller bearings contribute to reduced friction and heat generation?

Cylindrical roller bearings play a crucial role in reducing friction and minimizing heat generation in various applications. Let’s explore how these bearings contribute to these important factors:

  • Rolling Motion:

Cylindrical roller bearings facilitate rolling motion between the inner and outer rings, as well as the cylindrical rollers. This rolling motion significantly reduces friction compared to sliding or rubbing contact. Instead of sliding against each other, the rolling elements roll smoothly over the raceways, resulting in lower frictional forces. The reduced friction helps to minimize energy loss and heat generation within the bearing.

  • Precision Manufacturing:

Cylindrical roller bearings are precision-engineered components manufactured to tight tolerances. The surfaces of the rollers and raceways are carefully finished to ensure smooth and precise contact. The high precision in the bearing’s construction minimizes irregularities and imperfections that could cause increased friction and heat generation. By maintaining close tolerances, cylindrical roller bearings optimize performance and reduce frictional losses.

  • Lubrication:

Proper lubrication is essential for reducing friction and heat in cylindrical roller bearings. Lubricants create a thin film between the rolling elements and raceways, separating them and minimizing direct metal-to-metal contact. This lubricant film acts as a protective barrier, reducing friction and dissipating heat generated during operation. Adequate lubrication also helps to prevent wear, corrosion, and premature failure of the bearing.

  • Cage Design:

Cylindrical roller bearings often incorporate a cage or separator that spaces and guides the rollers. The cage retains the individual rollers in their proper positions, preventing them from contacting and rubbing against each other. This design feature not only maintains the integrity of the rolling elements but also reduces friction and heat generation by minimizing contact between adjacent rollers. The cage also helps to maintain proper lubricant distribution throughout the bearing.

  • Efficient Load Distribution:

Cylindrical roller bearings have a line contact between the rollers and raceways, which enables efficient load distribution. The cylindrical shape of the rollers allows them to bear loads along their length, spreading the load over a larger surface area compared to other bearing types. This even distribution of the load reduces localized stresses and friction at specific contact points, resulting in reduced heat generation.

  • Heat Dissipation:

Cylindrical roller bearings are typically designed with features that facilitate heat dissipation. They may incorporate special heat-treated components, such as rings and rollers, that have enhanced heat resistance properties. Additionally, the bearing design may include features such as grooves, holes, or special surface coatings to improve heat dissipation and prevent the buildup of excessive temperatures within the bearing assembly.

By minimizing friction and heat generation, cylindrical roller bearings contribute to improved efficiency, reduced energy consumption, and extended bearing life. These factors are crucial in various applications where the performance, reliability, and longevity of rotating machinery are critical considerations.

China Standard Active-Power Industries Cylindrical Roller Bearings D060014939 222 China Suppliers Nu202m Roller Bearing 15X31X11 Cylindrical Roller Bearing   with Hot sellingChina Standard Active-Power Industries Cylindrical Roller Bearings D060014939 222 China Suppliers Nu202m Roller Bearing 15X31X11 Cylindrical Roller Bearing   with Hot selling
editor by CX 2024-05-14