Product Description

Item Value
Type roller bearing 
Structure cage 
Applicable Industries Energy & Mining
Brand Name TIMKEN/KOYO/NTN/NSK
Model Number NU1060EM
Precision Rating P0 P4 P5 P6
Seals Type OPEN
Number of Row Single Row/Double Rows/Four Rows 
Place of Origin China

The rolling body is the centripetal rolling bearing of cylindrical roller. The inner structure of cylindrical roller bearing adopts rollers to be arranged in parallel, and there is a spacer or isolation block between rollers, which can prevent the tilt of rollers or friction between rollers, and effectively prevent the increase of rotating torque.

Cylindrical roller and raceway line contact, radial load capacity. Suitable for bearing heavy load and impact load as well as high speed rotation.

Characteristics :

1. Roller and raceway are in line contact or downline contact, radial bearing capacity is large, suitable for bearing heavy load and impact load.
2. Small friction coefficient, suitable for high speed, limit speed close to deep groove ball
bearings.
3. The processing requirements for shafts or seat holes are high. After bearing installation, the relative deviation of the outer ring axis should be strictly controlled to avoid contact stress concentration.
4. The inner ring or outer ring can be separated, easy to install and disassemble.
 

Model d mm D mm H mm W kg
NJ 220 EM 100 180 34 3.81
NJ 222 EM 110 220 38 5.11
NJ 224 EM 120 215 40 6.48
NJ 226 EM 130 230 40 7.46
NJ 228 EM 140 250 42 9.62
NJ 230 EM 150 270 45 12.1
NJ 232 EM 160 290 48 14.5
NJ 234 EM 170 310 52 19.3
NJ 236 EM 180 320 52 19.8
NJ 238 EM 190 340 55 22.9
NJ 240 EM 200 360 58 27.7
NU 220 EM 100 180 34 102
NU 222 EM 110 220 38 4.8
NU 224 EM 120 215 40 6.47
NU 226 EM 130 230 40 7.34
NU 228 EM 140 250 42 9.1
NU 230 EM 150 270 45 11.7
NU 232 EM 160 290 48 14.2
NU 234 EM 170 310 52 18
NU 236 EM 180 320 52 19.6
NU 238 EM 190 340 55 22.6
NU 240 EM 200 360 58 27

 

 

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”.

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

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)
Samples:
US$ 10/Piece
1 Piece(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

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Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

slewing bearing

How do Environmental Factors such as Temperature and Exposure to Corrosive Substances Impact Slewing Bearings?

Environmental factors, including temperature variations and exposure to corrosive substances, have a significant impact on the performance and longevity of slewing bearings. Here’s how these factors affect slewing bearings:

  • Temperature Extremes:

High Temperatures: Excessive heat can lead to premature bearing failure by affecting the lubrication properties, causing thermal expansion, and accelerating wear. Bearings operating at high temperatures require special lubricants and materials that can withstand thermal stresses.

Low Temperatures: Extremely low temperatures can lead to reduced lubricant viscosity, increasing friction and wear. Bearings operating in cold environments might require low-temperature lubricants and materials that maintain their properties in freezing conditions.

  • Corrosive Substances:

Moisture and Water: Exposure to moisture and water can lead to rust, corrosion, and erosion of bearing components. This is particularly relevant in marine environments or applications exposed to frequent wet conditions.

Chemical Exposure: Corrosive chemicals and aggressive substances can deteriorate bearing materials and lubricants, leading to accelerated wear and potential structural damage.

Dust and Particles: Dust, dirt, and particles can infiltrate the bearing, causing abrasive wear and increasing the risk of damage to the rolling elements and raceways.

  • Effects on Lubrication:

Temperature extremes and exposure to corrosive substances can compromise the effectiveness of lubrication. High temperatures can degrade lubricants, while corrosive environments can contaminate or dilute lubricants, reducing their protective qualities.

  • Material Selection:

When designing slewing bearings for specific environments, choosing appropriate materials is crucial. Stainless steels, specialized coatings, and corrosion-resistant materials are often preferred for applications where corrosion is a concern.

  • Sealing Solutions:

Effective sealing solutions are essential to protect slewing bearings from moisture, chemicals, and contaminants. Proper sealing helps maintain lubrication integrity and prevents external substances from entering the bearing.

  • Maintenance and Inspection:

Regular maintenance and inspections are critical in environments with temperature fluctuations and corrosive exposure. Prompt removal of contaminants, re-lubrication, and replacement of damaged parts can mitigate the effects of these factors.

  • Application-Specific Considerations:

Understanding the environmental conditions of the application is essential for selecting the appropriate slewing bearing type, materials, and maintenance practices. Customized solutions might be necessary for extreme environments.

In summary, temperature variations and exposure to corrosive substances can degrade the performance and durability of slewing bearings. Proper material selection, sealing, lubrication, and maintenance practices are vital for ensuring the bearings’ reliability in challenging environmental conditions.

slewing bearing

Can you Provide Examples of Industries where Slewing Bearings are Crucial Components?

Slewing bearings play a vital role in various industries due to their ability to handle complex loads and rotational movements. Here are some examples of industries where slewing bearings are crucial components:

  • Construction Industry:

Slewing bearings are used in construction machinery such as cranes, excavators, and concrete pumps. They enable the movement of heavy loads, contributing to efficient construction operations.

  • Wind Energy Industry:

In wind turbines, slewing bearings allow the rotor blades and nacelle to rotate for optimal wind capture. Their durability and load-bearing capacity are essential for reliable wind turbine operation.

  • Mining Industry:

Slewing bearings are employed in mining equipment like stacker-reclaimers and conveyor systems. They facilitate the movement of large quantities of materials, contributing to efficient mining operations.

  • Marine Industry:

Slewing bearings are used in ship cranes, davits, and other marine equipment for cargo handling and maintenance tasks. They play a crucial role in maritime operations.

  • Aerospace Industry:

Slewing bearings find applications in aerospace equipment like aircraft landing gear systems, satellite antenna deployment mechanisms, and more.

  • Manufacturing Industry:

Industrial robots and automation systems utilize slewing bearings for precise rotational movement, enhancing manufacturing processes.

  • Material Handling Industry:

Slewing bearings are crucial in material handling equipment such as conveyor systems, container cranes, and automated storage and retrieval systems.

  • Energy Industry:

In the energy sector, slewing bearings are used in equipment such as solar trackers, tidal energy platforms, and hydroelectric power plants.

  • Medical Industry:

Some medical imaging equipment like CT scanners and MRI machines use slewing bearings for rotational movement, contributing to accurate diagnostics.

  • Entertainment Industry:

In theme parks and entertainment venues, slewing bearings are used in amusement rides that require controlled rotational movement.

  • Automotive Industry:

Slewing bearings can be found in various automotive applications, such as car turntables and components in heavy-duty vehicles.

These are just a few examples of the diverse industries where slewing bearings are crucial components, contributing to the efficient operation of machinery and equipment.

slewing bearing

What are the Materials Commonly Used in Manufacturing Slewing Bearings and Their Respective Benefits?

Slewing bearings are manufactured using a variety of materials, each offering specific benefits that suit different industrial applications. Some common materials and their advantages include:

  • Steel:

High-quality steel, such as chrome or stainless steel, is widely used due to its durability, strength, and resistance to corrosion. Steel bearings can handle heavy loads and offer excellent wear resistance, making them suitable for heavy-duty applications.

  • Forged Steel:

Forged steel is even more robust than standard steel due to the manufacturing process that aligns the grain structure. This material is suitable for applications with extreme loads, harsh environments, and high impact forces.

  • Bearing Steel:

Bearing steel, designed specifically for rolling-element bearings, provides superior hardness and wear resistance. It’s commonly used in slewing bearings to extend their service life and minimize wear.

  • Alloy Steel:

Alloy steels offer a combination of strength, toughness, and corrosion resistance. They are suitable for applications that require both load-bearing capacity and resistance to challenging conditions.

  • Cast Iron:

Cast iron is often used in smaller, low-load slewing bearings. It provides good damping properties and is cost-effective for less demanding applications.

  • Bronze:

Bronze bearings are known for their self-lubricating properties and resistance to corrosion. They are commonly used in applications where maintenance-free operation and low friction are important.

  • Plastics and Polymers:

Various plastics and polymers are employed for their lightweight, corrosion resistance, and low friction characteristics. These materials are suitable for applications that require chemical resistance and reduced noise levels.

  • Ceramics:

Ceramic materials offer excellent corrosion resistance, high temperature resistance, and electrical insulation properties. While less common, they are used in specialized applications like semiconductor manufacturing and certain medical equipment.

  • Coatings:

Special coatings like zinc, nickel, or chrome plating can be applied to enhance corrosion resistance and reduce friction. These coatings are often used in combination with other base materials to improve performance.

Choosing the appropriate material depends on factors like load, environment, operating conditions, and maintenance requirements. Engineers carefully consider these factors to ensure that the selected material aligns with the specific needs of the application.

China Custom CZPT Nu1060em Construction Excavator Crane Roller Swing Gear Slew Drive Slewing Ring Bearing for Mining Metalworking Industry   bearing exampleChina Custom CZPT Nu1060em Construction Excavator Crane Roller Swing Gear Slew Drive Slewing Ring Bearing for Mining Metalworking Industry   bearing example
editor by CX 2024-05-15