Product Description

DETA

 

ZheJiang Leicester Bearing Technology Co., Ltd. is a specialized manufacturer that produces various types of bearings, including cylindrical roller bearings (7 series, 97 series, 3007 series, 20097 series), British standard tapered roller bearings, deep groove ball bearings, spherical plain bearings, self-aligning roller bearings, rolling mill bearings, and a variety of non-standard bearings.
At our core, we believe in “Quality, Creating Value,” and we have gained the trust and support of customers both domestically and internationally by delivering high-quality products.
In 2002, we received certification from the China Import and Export Product Quality Verification Center and obtained ISO 9001, ISO 2000, and IATF 16949 quality management system certifications. Our successful collaborations with renowned domestic and international enterprises have made us reliable and stable suppliers. Moreover, we have provided bearing components to well-known bearing manufacturers worldwide.

 

PRODUCT OVERVIEW

Baaring No Dimension[mm Bearing Na. Dimension(mm
d D B d D T
N410 NF410 NU410 NJ410 NUP410 50 30 31       NJ2230   50 270 73
N411 NF411 NU411 NJ411 NUP411 55 40 33     NU2232 NJ2232   60 290 80
N412 NF412 NU412 NJ412 NUP412 65 50 35     NU2234 NJ2234   70 310 86
N413 NF413 NU413 NJ413 NUP413 70 160 37           15 35 18
N414 NF414 NU414 NJ414 NUP414 75 80 42 N2302         17 47 21
N415 NF415 NU415 NJ415 NUP415 0 90 45 N2303   NU2305 NJ2305   25 62 24
N416 NF416 NU416 NJ416 NUP416 5 200 48 N2305     NJ2306   30 72 27
N417 NF417 NU417 NJ417 NUP417 90 210 52 N2306     NJ2307 NUP2307 35 80 31
N418 NF418 NU418 NJ418 NUP418 95 225 54     NU2308 NJ2308 NUP2308 40 90 33
    NU419 NJ419   100 240 55 N2309   NU2309 NJ2309 NUP2309 45 00 36
    NU420 NJ420   17 250 58     NU2310 NJ2310 NUP2310 50 110 40
N2203 NF2200 NU2203 NJ2203 NUP2200 20 40 16     NU2311 NJ2311 NUP2311 55 20 43
N2204 NF2204 NU2204 NJ2204 NUP2204 25 47 18 N2312   NU2312 NJ2312   60 130 46
N2205 NF2205 NU2206 NJ2205 NUP2205 30 52 18 N2313   NU2313 NJ2313   65 40 48
N2206 NF2206 NU2206 NJ2206 NUF2206 35 62 20 N2314   NU2314 NJ2314 NUP2314 70 50 51
N2207 NF2207 NU2207 NJ2207 NUP2207 40 72 23 N2315   NU2315 NJ2315   75 160 55
N2208 NF2208 NU2208 NJ2208 NUP2208 45 80 23 N2316   NU2316 NJ2316   80 170 58
N2209 NF2209 NU2209 NJ2209 NUF2209 50 85 23 N2317   NU2317 NJ2317   85 80 60
N2210 NF2210 NU2210 NJ2210 NUP2210 55 90 23 N2318   NU2318 NJ2318   90 90 64
N2211 NF2211 NU2211 NJ2211 NUF2211 60 00 25 N2319   NU2319 NJ2319   95 200 67
N2212 NF2212 NU2212 NJ2212 NUP2212 65 110 28 N2320   NU2320 NJ2320   00 215 73
N2213 NF2213 NU2213 NJ2213 NUP2213 70 20 31 N2322   NU2322 NJ2322   10 240 80
N2214 NF2214 NU2214 NJ2214 NUP2214 75 125 31                
N2215 NF2215 NU2215 NJ2215 NUP2215 0 30 31                
N2216 NF2216 NU2216 NJ2216 NUP2216 85 140 33                
N2217 NF2217 NU2217 NJ2217 NUP2217 90 50 36                
N2218 NF221 NU2218 NJ2218 NUP2218 95 60 40                
N2219 NF2219 NU2219 NJ2219 NUP221 100 70 43                
N2220 NF2220 NU2220 NJ2220 NUF2220 110 80 46                
N2222 NF2222 NU2222 NJ2222 NUP2222 20 200 53                
N2224 NF2224 NU2224 NJ2224 NUP2224 130 215 58                
N2226 NF2226 NU2226 NJ2226 NUP2226 140 230 64                
    NU2228 NJ2228     250 68                

 Cylindrical roller bearings have rollers that provide a modified line contact with the cylindrical inner and outer ring raceways, while the rollers are guided by ground CZPT on either the inner or outer ring. The cylindrical shape allows the inner ring to have axial movement relative to the outer ring. This is especially important when accommodating thermal expansion, where both rings must be press-fitted.

Cylindrical roller bearings feature high radial load capacity because the rollers and raceway are in linear contact. These bearings are suitable for applications that involve heavy radial and impact loading. They are also appropriate for high-speed applications inasmuch as they can be machined very accurately due to their structure. Having a separable inner or outer ring, these bearings can be easily mounted and dismounted.

 

Detailed Photos

 

OUR PRODUCTS

 

SCOPE OF APPLICATION

 

PRODUCTION PROCESS

PRODUCT PACKAGING

1.industrial packing+industrial cartons+pallets

2.single brand box+brand cartons+pallets

3.follow customer’s requests

A.Plastic Tubes or Single Boxes ( Usually 10pcs in 1 plastic tube for steel bearings);

B.Cartons ( No more than 30kg for 1 carton );

C. Pallet ( Usually more than 400kg totally will use pallet )

D. Delivery time :7-35 days ( by sea or by air )  

Generally,We will choose the most suitable packing method for products. If you have any special requirements for packing, please contact us in advance.

Company Profile

“Reliable quality, competitive prices, and excellent service” have always been our guiding principles. We have implemented a stringent quality control system, starting from raw material procurement to product manufacturing. Our company boasts a strong technical team, well-equipped testing facilities, and a robust ability to develop new products. With a commitment to delivering high-quality products and maintaining a good reputation, we aim to earn the trust of more customers.
ZheJiang Leicester Bearing Technology Co., Ltd. warmly welcomes both new and existing customers for discussions, guidance, and collaboration. We are eager to establish direct sales partnerships with businesses in various industries, both within the country and internationally.
As we embrace our dreams and uphold our values, honesty remains the foundation of our company. ZheJiang Leicester Bearing Technology Co., Ltd. looks forward to creating a bright future together with you!

OUR STRENGTHS

Q1: Can I get some samples?

A: Yes, sample order is available for quality check and market test. But you have to pay the sample cost and express cost. Q2

: Do you receive customized order?

A: Yes, ODM & OEM are welcomed.

Q3: What’s the lead time?

A: According to the order quantity, small order usually need 3-5 days, big order need negotiation.

Q4: What’s your payment terms?

A: We receive Escrow, T/T, West Union, Cash and etc.

 

 

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Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)
Samples:
US$ 0.1/Piece
1 Piece(Min.Order)

|

Order Sample

Customization:
Available

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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

Are there any Specific Safety Precautions to Take When Working with Slewing Bearings?

Working with slewing bearings involves certain safety considerations to prevent accidents and ensure the well-being of personnel. Here are some specific safety precautions to take:

  • Training and Knowledge:

Ensure that personnel working with slewing bearings are properly trained and have a clear understanding of the equipment, procedures, and safety protocols.

  • Protective Equipment:

Use appropriate personal protective equipment (PPE), including gloves, safety goggles, and hearing protection, to safeguard against potential hazards.

  • Lockout/Tagout:

Follow lockout/tagout procedures when performing maintenance or repairs. Locking out equipment prevents unexpected activation and potential hazards.

  • Machine Shutdown:

Before working on machinery containing slewing bearings, ensure that the equipment is properly shut down, power sources are disconnected, and any stored energy is released.

  • Proper Tools:

Use suitable tools and equipment for maintenance and assembly to prevent accidents and ensure accurate work.

  • Weight Handling:

If handling heavy slewing bearing components, use appropriate lifting equipment and techniques to avoid strain or injury.

  • Secure Work Area:

Ensure that the work area is clean, organized, and free from obstacles. This reduces the risk of tripping hazards and improves overall safety.

  • Work with a Partner:

Whenever possible, perform tasks involving slewing bearings with a partner. Having someone nearby can provide assistance in case of emergencies.

  • Safe Access:

Ensure safe access to the work area, including the use of stable platforms or ladders, to prevent falls or slips.

  • Warning Signs:

Use proper warning signs and labels to alert others about ongoing maintenance or potential hazards related to slewing bearings.

  • Manufacturer Guidelines:

Adhere to the manufacturer’s recommendations for maintenance, lubrication, and safety practices specific to the slewing bearings being worked on.

  • Emergency Procedures:

Have clear emergency procedures in place and communicate them to all personnel. Know the location of emergency equipment and exits.

By following these safety precautions, you can minimize risks associated with working on slewing bearings and create a safer environment for maintenance personnel.

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 Hot selling High_Quality Double Row Ball Slewing Ring Gear Slewing Bearing for Excavator and Crane   ball bearingChina Hot selling High_Quality Double Row Ball Slewing Ring Gear Slewing Bearing for Excavator and Crane   ball bearing
editor by CX 2024-05-14