Product Description

Welcome to choose KORTON INDUSTRIAL LIMITED
Cylindrical roller bearings Rolling mill bearing gear box bearing FC257170

NO 1. Our Adwantages:
1. 14 years bearing products manufacturing and 4 years exporting experiences.
2. OEM order and non-standard bearing order can be accepted.
3. Our main bearing products include Deep groove ball bearings, tapered roller bearings, cylindrical roller bearings, angular contact bearings, double row angular contact bearings, needle roller bearings, thrust ball bearings, spherical bearings, automotive bearings pump bearings, and many nonstandard bearings are also in our product range.
4. Sample available
 
NO 2. Types of Cylindrical roller bearing
 N series cylindrical roller bearing design The inner ring has 2 integral flanges and the outer ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself. The bearings are therefore used as non-locating bearings.
 NU series cylindrical roller bearing design The outer ring of bearings of the NU design has 2 integral flanges and the inner ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself.
 NJ series cylindrical roller bearing design The outer ring has 2 integral flanges and the inner ring 1 integral flange. The bearings are therefore suitable for the axial location of a shaft in 1 direction.
 NF series cylindrical roller bearing design The outer ring has 1 integral flange and the inner ring 2 integral flanges.
 NP series cylindrical roller bearing design  The outer ring has 1 integral flange and 1 non-integral flange in the form of a loose flange ring and the inner ring 2 integral flanges.
 NUP series cylindrical roller bearing design The outer ring has 2 integral flanges and the inner ring 1 integral flange and 1 non-integral flange in the form of a loose flange ring. The bearings can be used as locating bearings, i.e. they can provide axial location for a shaft in both directions.
 RN series cylindrical roller bearing design No outer ring and the inner ring 2 integral flanges.
 
 NO 3. Cylindrical roller bearing Specification: 
 

Seals Types OPEN
Vibration Level Z1V1,Z2V2,Z3V3
Clearance C2,C0,C3,C4,C5
Tolerance Codes ABEC-1,ABEC-3,ABEC-5
Materral GCr15-China/AISI52100-USA/Din100Cr6-Germany
MOQ 1Set at least
Delivery Time 5-10 days after contract
Payment Terms TT/PAPAL/WESTERN UNION
PaCkage Tube package+outer carton+pallets;Single box+outer carton+pallets;
Tube pavkge+middle box+outer carton+pallets;According to your requirement

NO 4.Needle Roller / Cylindrical Roller Bearings Models And Size:

Model Size Weight Model Size Weight
ZARN2062TN 20*62*12.5 0.87kg ZARN2062LTN 20*62*12.5 0.99kg
ZARN2572TN 25*72*12.5 1.17kg ZARN2572LTN 25*72*12.5 1.32kg
ZARN3080TN 30*80*14 1.5kg ZARN3080LTN 30*80*14 1.7kg
ZARN3585TN 35*85*14 1.65kg ZARN3585LTN 35*85*14 1.8kg
ZARN4090TN 40*90*16 2.09kg ZARN4090LTN 40*90*16 2.39kg
ZARN45105TN 45*105*17.5 3.02kg ZARN45105LTN 45*105*17.5 3.42kg
ZARN50110TN 50*110*17.5 3.3kg ZARN50110LTN 50*110*17.5 3.75kg
ZARN55115TN 55*115*17.5 3.5kg ZARN55115LTN 55*115*17.5 4kg
ZARN60120TN 60*120*17.5 3.7kg ZARN60120LTN 60*120*17.5 4.85kg
ZARN65125TN 65*125*17.5 4kg ZARN65125TN 65*125*17.5 4.6kg
ZARN70130TN 70*130*17.5 4.1kg ZARN70130LTN 70*130*17.5 4.85kg
ZARN75155TN 75*155*21 7.9kg ZARN75155LTN 75*155*21 9.1kg
ZARN90180TN 90*180*22.5 11.8kg ZARN90180LTN 90*180*22.5 13.2kg

NO 5. Cylidrical Roller Bearing Models and Size:                

 MODEL   SIZE(mm) MODEL  SIZE(mm)
NEW OLD d D B     NEW     OLD d D B
N202 2202 15 35 11 NUP205 92205 25 52 15
NF202 12202 15 35 11 RN205 557105 25 15
NU202 32202 15 35 11 RNU205 292205 52 15
NJ202 42202 15 35 11 N2205 2505 25 52 18
RN202 557102 15 11 N2205 2505 25 52 18
RNU202 292202 35 11 NUP2205NV E192505K 25 52 18
N203 2203 17 40 12 LRN605/YA 922205 52 15
NF203 12203 17 40 12          
NU203 32203 17 40 12 N305 2305 25 62 17
NJ203 42203 17 40 12 NU305 32305 25 62 17
RN203 557103 17 12 NJ305 42305 25 62 17
RNU203 292203 40 12 NUP305 92305 25 62 17
N204 2204 20 47 14 RN305 557105 25 17
NF204 12204 20 47 14 NF305 12305 25 62 17
NU204 32204 20 47 14 RNU305 292305 62 17
NJ204 42204 20 47 14 NCL2305 102605 25 62 24
NUP204 92204 20 47 14          
RN204 557104 20 14 N206 2206 30 62 16
RNU204 292204 47 14 NF206 12206 30 62 16
RN-V604ENV/P6 E392704K 55 20 NU206 32206 30 62 16
          NJ206 42206 30 62 16
N304 2304 20 52 15 NUP206 92206 30 62 16
NF304 12304 20 52 15 RN206 557106 30 16
NU304 32304 20 52 15 RUN206 292206 62 16
NJ304 42304 20 52 15 NCL206 157106 30 62 16
NUP304 92304 20 52 15          
RN304 557104 20 15 N306 2306 30 72 19
RNU304 292304 52 15 NF306 12306 30 72 19
          NU306 32306 30 72 19
N205 2205 25 52 15 NJ306 42306 30 72 19
NF205 12205 25 52 15 NUP306 92306 30 72 19
NU205 32205 25 52 15 RN306 557106 30 19
NJ205 42205 25 52 15          

 

  MODLE    SIZE(mm)  MODLE    SIZE(mm)
NEW OLD d D B NEW OLD d D B
RNU306 292306 72 19 NU208 32208 40 80 18
NCL306 157106 30 72 19 NJ208 42208 40 80 18
NCL2206*2 157106 30 62 19 NUP208 92208 40 80 18
          RN208 557108 40 -18  
N406 2406 30 90 23 RNU208 292208 80 18
NJ406 42406 30 90 23 N2208 2508 40 80 23
          NF2208 12508 40 80 23
NU1007 32107 35 62 14 N2208 2508 40 80 23
N207 2207 35 72 17          
NF207 12207 35 72 17 N308 2308 40 90 23
NU207 32207 35 72 17 NF308 12308 40 90 23
NJ207 42207 35 72 17 NU308 32308 40 90 23
NUP207 92207 35 72 17 NJ308 42308 40 90 23
RN207 557107 35   NUP308 92308 40 90 23
RNU207 292207 72 17 RN308 557108 40 -23  
          RNU308 292308 90 23
N307 2307 35 80 21 NJ2308 42608 40 90 33
NF307 12307 35 80 21          
NU307 32307 35 80 21 N408 2408 40 110 27
NJ307 42307 35 80 21 NJ408 42408 40 110 27
NUP307 92307 35 80 21          
RN307 557107 35 21 N209 2209 45 85 19
RNU307 292307 80 21 NF209 12209 45 85 19
NCL307 157107 35 80 21 NU209 32209 45 85 19
NU2307 32607 35 80 31 NJ209 42209 45 85 19
NJ2307 42607 35 80 31 NUP209 92209 45 85 19
NUP2307 92607 35 80 31 RN209 557109 45 -19  
          RUN209 292209 85 19
N407 2407 35 100 25 NU2209 32509 45 85 23
NJ407 42407 35 100 25          
          N309 2309 45 100 25
N208 2208 40 80 18 NF309 12309 45 100 25
NF208 12208 40 80 18          

Why Choose Us:

1,HangZhou TIXIHU (WEST LAKE) DIS. bearing company has 14 years manufacture experience and is one of the biggest adjustment center in north of China.
2,We have large stock of original brand and our own brand bearing.
3,Sample is available.
4,We can accept OEM service.

HangZhou Xihu (West Lake) Dis. Bearing Co., Ltd. Was founded in March 2008. We were principally engaged in the research, development and manufacture of bearings in the early stage. Now we are mainly engaged in the sales of internationally-famous brand bearings. Our products are sold in Britain, America, Japan, Italy and Southeast Asia, well appreciated by their purchasers.

Our transportation
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Rolling Body: Roller Bearings
The Number of Rows: Double
Outer Dimension: Large (200-430mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing
Customization:
Available

|

Customized Request

tapered roller bearing

Can you Explain the Concept of Bearing Clearance in Tapered Roller Bearings?

Bearing clearance, also known as internal clearance, refers to the space or gap between the various components of a tapered roller bearing when it is not under load. This clearance exists to accommodate the thermal expansion of the bearing components, ensure proper lubrication, and prevent excessive interference during operation. Here’s how bearing clearance works in tapered roller bearings:

  • Thermal Expansion:

As tapered roller bearings operate, they generate heat due to friction and loading. This heat causes the bearing components, including the inner and outer rings, rollers, and cage, to expand. Bearing clearance provides the necessary space for these components to expand without causing binding or excessive load on the rolling elements.

  • Lubrication Film:

The lubricant within the bearing forms a thin film between the rolling elements and raceways. Bearing clearance ensures that the rolling elements can move smoothly within this lubrication film, reducing friction and wear.

  • Operating Conditions:

Bearing clearance affects the behavior of the bearing under different operating conditions. Excessive clearance can lead to vibration, noise, and reduced load-carrying capacity, while insufficient clearance may result in increased friction, heat generation, and premature failure.

  • Types of Clearance:

Tapered roller bearings can have various types of clearance, including radial clearance (between the rollers and raceways) and axial clearance (along the bearing axis). The choice of clearance depends on the application’s requirements and the desired balance between load capacity and internal stress.

  • Preload vs. Clearance:

Preload, which is the application of a controlled axial force, eliminates internal clearance and optimizes the distribution of load between rolling elements. In contrast, bearing clearance provides the necessary space for thermal expansion and lubrication, albeit at the cost of increased play.

  • Application-Specific Considerations:

The optimal bearing clearance varies depending on factors such as the application’s operating temperature, speed, and load magnitude. Engineers carefully select the appropriate clearance to ensure optimal bearing performance.

  • Measuring Clearance:

Bearing clearance can be measured using specialized instruments or techniques that assess the gap between components when the bearing is not under load.

Proper bearing clearance is crucial to maintaining optimal performance, minimizing wear, and preventing premature failure in tapered roller bearings. It is a critical factor that engineers consider when selecting and designing bearings for specific applications.

cylindrical roller bearing

Can cylindrical roller bearings be used in both radial and axial load applications?

Yes, cylindrical roller bearings are capable of supporting both radial and axial loads. They are designed to handle primarily radial loads but can also withstand certain axial loads depending on the bearing’s configuration and design features. Let’s delve into the details:

  • Radial Load Capacity:

Cylindrical roller bearings are primarily designed to carry radial loads, which are perpendicular to the shaft’s axis. The cylindrical rollers distribute the load evenly along their length and transmit it to the raceways. The rings of the bearing, both the inner and outer rings, provide structural support and maintain the position of the rollers. The cylindrical shape of the rollers enables efficient load distribution, making cylindrical roller bearings suitable for applications with significant radial loads.

  • Axial Load Capacity:

While cylindrical roller bearings are primarily designed for radial loads, they can also accommodate certain axial loads depending on their specific design features. There are different types of cylindrical roller bearings that offer varying degrees of axial load capacity:

  • Single-row cylindrical roller bearings:

These bearings can accommodate limited axial loads in one direction. The axial load-carrying capacity is determined by the bearing’s internal design, including the shoulder and rib configurations on the inner and outer rings. Single-row cylindrical roller bearings with a full complement of rollers, where the cage is removed, can provide higher axial load capacity at the expense of reduced speed capability.

  • Double-row cylindrical roller bearings:

Double-row cylindrical roller bearings have increased axial load-carrying capacity compared to single-row bearings. They can support axial loads in both directions and are often used in applications where combined radial and axial loads are present. Double-row cylindrical roller bearings have additional features such as increased rib height, modified internal clearance, or a different cage design to enhance their axial load-carrying capability.

  • Multi-row cylindrical roller bearings:

Multi-row cylindrical roller bearings, such as four-row or six-row designs, offer even higher axial load capacity. These bearings are commonly used in heavy-duty applications where extremely high radial and axial loads need to be accommodated, such as rolling mills, crushers, or gearboxes.

It’s important to consider the specific load requirements of the application when selecting cylindrical roller bearings. Factors such as the magnitude and direction of the loads, the bearing’s speed capability, and any potential misalignment should be taken into account to ensure the bearing is properly sized and can handle the anticipated loads.

In summary, while cylindrical roller bearings are primarily designed to carry radial loads, they can also support certain axial loads depending on their design. Single-row, double-row, and multi-row cylindrical roller bearings offer varying degrees of axial load capacity, allowing them to be utilized in applications with combined radial and axial loads.

cylindrical roller bearing

How do cylindrical roller bearings differ from other types of roller bearings?

Cylindrical roller bearings possess distinct characteristics that set them apart from other types of roller bearings. Let’s examine the key differences between cylindrical roller bearings and other common roller bearing types:

  • Design and Structure:

Cylindrical roller bearings feature cylindrical rollers that have a high length-to-diameter ratio. This design allows them to accommodate high radial loads and moderate thrust loads. In contrast, other types of roller bearings, such as spherical roller bearings or tapered roller bearings, have different roller shapes and configurations tailored for specific load and application requirements.

  • Load Capacity:

Cylindrical roller bearings excel in handling radial loads. Their cylindrical roller arrangement and large contact area with the raceways enable them to distribute loads evenly along the rollers’ length. This characteristic makes cylindrical roller bearings suitable for applications where the primary load is radial. In comparison, other roller bearing types may be better suited for applications with different load orientations or combinations of radial and axial loads.

  • Thrust Load Capability:

While cylindrical roller bearings can accommodate moderate axial loads, they are primarily designed for radial load-carrying capacity. On the other hand, thrust roller bearings, such as spherical roller thrust bearings or tapered roller thrust bearings, are specifically designed to handle predominantly axial loads. These thrust bearings have different roller arrangements and structures optimized for axial load resistance.

  • Internal Clearance:

Cylindrical roller bearings offer a range of internal clearances, which is the space between the rolling elements and raceways when no external load is applied. The internal clearance affects factors such as running accuracy, thermal expansion, and the ability to accommodate misalignment or axial displacement. In contrast, other roller bearing types may have different clearance options or incorporate specific features, such as preloading, to optimize performance in their respective applications.

  • Application Diversity:

Cylindrical roller bearings find extensive use in various machinery applications, including electric motors, gearboxes, pumps, and compressors. However, other roller bearing types have their own advantages and are commonly employed in specific industries or applications. For instance, needle roller bearings are suitable for applications with limited radial space, while crossed roller bearings are commonly used in precision machinery that requires high positioning accuracy.

  • Operating Speed:

Cylindrical roller bearings can operate at high speeds, depending on their design and internal clearance. Manufacturers provide speed ratings and guidelines to ensure proper selection and operation within the bearing’s speed limits. Other roller bearing types may have different speed capabilities based on their specific design features, such as the shape of the rollers, cage design, or lubrication requirements.

Understanding the differences between cylindrical roller bearings and other types of roller bearings is crucial for selecting the appropriate bearing for a given application. Factors such as load requirements, load orientation, speed, space limitations, and environmental conditions should be carefully considered to ensure optimal bearing performance and longevity.

China wholesaler CZPT Cylindrical Roller Bearings Rolling Mill Bearing Gear Box Bearing FC202870   bearing blockChina wholesaler CZPT Cylindrical Roller Bearings Rolling Mill Bearing Gear Box Bearing FC202870   bearing block
editor by CX 2024-04-04