Product Description

NSK KT192317 Needle Roller Bearing 19mm Inner Diameter Bearings

Product Name 

NSK KT192317 Needle Roller Bearing 19mm Inner Diameter Bearings

Brand

TFN / OEM

Model Number

KT192317

Ring Material

Gcr15/ Carbon Steel/ Stainless Steel

Cage Material 

Steel

Precision

P0, P6, P5, P4,P2 or as requested

Vibration

ZV1, ZV2, ZV3, or as requested

Clearance 

C0,C2,C3, or as requested 

Application

Widely used in various mechanical equipment such as machine tools, metallurgical machinery, textile machinery and printing machinery etc.

Features 

Long life, high temperature resistance, corrosion resistance, ultra high speed.

Quality standard

ISO9001:2000/ SGS

Quality Control Process 

1.Assembly

2.Windage test

3.Cleaning

4.Rotary test

5.Greasing and gland

6.Noise inspection

7.Appearance inspection

8.Rust prevention

9.Product packaging

Needle bearing

Needle roller bearings are roller bearings with cylindrical rollers that are thin and long relative to their diameter. This type of roller is called a needle roller. Despite the small cross-section, the bearing still has a high load bearing capacity, and the needle bearing is equipped with a thin and long roller (roller diameter D≤5mm, L/D≥2.5, L is the roller length), so The radial structure is compact, its inner diameter size and load capacity are the same as other types of bearings, the outer diameter is the smallest, and it is especially suitable for support structures with limited radial mounting dimensions.

Other Needle roller bearing models : 

Bearing Number Boundary dimensions(mm) Moment(Nm) Basic load ratings(N) Mass(g)
  Fw D C Md Cr Cor (Approx.)
HF3530 35 42 30 121 3900 3900 58
HF2520 25 32 20 66 5500 5500 30.9
HF3571 30 37 20 90 4500 4500 36
HF3520 35 42 20 121 3900 3900 40
HF1616 16 22 16 20.5 8500 7500 14
HF1816 18 24 16 24.1 7500 7500 15.5
HF2016 20 26 16 28.5 7000 6500 17
HF1012 10 14 12 5.3 14000 11000 4
HF1216 12 18 16 12.2 10000 7000 10.5
HF1416 14 20 16 17.3 9500 8000 13
HF0409 4 8 6 0.34 34000 14000 1
HF0612 6 10 12 1.76 23000 13000 3
Bearing Number Boundary dimensions(mm) Basic load ratings(N) Limiting speeds(rpm) Mass(g)
  Fw Ew Bc Cr Cor Oil (Approx.)
K5X8X10TN 5 8 10 2800 2450 37000 0.9
K5X8X8TN 5 8 8 2300 1880 37000 0.7
K6X10X13TN 6 10 13 3500 2800 33000 1.3
K6X9X10TN 6 9 10 3300 3100 35000 1
K6X9X8TN 6 9 8 25600 2240 35000 0.8
K7X10X10TN 7 10 10 3350 3400 32000 1.1
K7X10X8TN 7 10 8 2750 2550 32000 0.9
K8X11X10TN 8 11 10 3830 3950 30000 1.7
K8X11X13TN 8 11 13 5000 5700 30000 1.8
K8X11X8TN 8 11 8 3000 2900 30000 1.1
K8X12X10TN 8 12 10 4900 4600 30000 1.3
K9X12X10TN 9 12 10 4200 4700 30000 1.5
K9X12X13TN 9 12 13 5500 6700 30000 1.9
K10X13X10TN 10 13 10 4500 5250 27000 1.6
Bearing Number Boundary dimensions(mm) Basic load ratings(N) Limiting speeds(rpm) Mass(g)
  Fw D C Cr Cor Oil (Approx.)
NK5/10TN 5 10 10 2100 1400 36780 2.9
NK8/12TN 8 15 12 3050 3650 29112 8.3
NK10/12TN 10 17 12 4750 5350 23500 10
NK12/12 12 19 12 6050 6400 21640 11.8
NK12/16 12 19 16 8200 9800 21640 16.8
NK14/16 14 22 16 8260 9600 18322 20.8
NK15/12 15 23 12 8600 10070 21004 18.5
NK16/20 16 24 20 10400 16800 15522 23.9
NK16/16 16 24 16 9030 11900 15522 20.8
NK17/16 17 25 16 9000 13500 14163 21.5
NK18/20 18 26 20 10500 13800 13628 30.5
NK202620 20 26 20 10500 11900 9125 17.2
NK203312SX 20 33 12 13000 17500 11124 29.1
NK20/16 20 28 16 11500 13400 12716 25.7
NK20/20 20 28 20 12400 21800 12716 29.3
Bearing Number Boundary dimensions(mm) Basic load ratings(N) Limiting speeds(rpm) Mass(g)
  Fw D C Cr Cor Oil (Approx.)
RNAV4002 21.87 32 17 10800 29800 4500 45
RNAV4003 24.3 35 18 17900 37900 4300 62
RNAV4004 28.7 42 22 28150 60900 3900 114
RNAV4005 33.5 47 22 33800 70800 3700 129
RNAV4006 40.1 55 25 49900 96500 3500 193
RNAV4007 45.9 62 27 47600 122800 3100 259
RNAV4008 51.6 68 28 49900 137900 2700 304
RNAV4009 57.4 75 30 52500 153500 2600 390
RNAV4571 62.1 80 30 55700 166000 2500 426
RNAV4011 69.8 90 35 68500 225800 2300 645
RNAV4012 74.6 95 35 75400 239000 2100 677
RNAV4013 80.3 100 35 79500 256900 1900 692
RNAV4014 88 110 40 98800 354900 1700 950
RNAV4015 92.7 115 45 101800 372900 1600 1000
RNAV4016 100.3 125 45 157100 373500 1500 1400
RNAV4017 104.8 130 45 103800 374800 1400 1540
Bearing Number Boundary dimensions(mm) Basic load ratings(N) Limiting speeds(rpm) Mass(g)
  Dc1 Dc Dw Cr Cor Oil (Approx.)
AXK571TN  4 14 2 4380 7500 18000 0.7
AXK571TN 5 15 2 4680 9100 17000 0.8
AXK0821TN 8 21 2 7750 19000 15000 2
AXK1571 10 24 2 9150 24500 14000 3
AXK1226 12 26 2 9860 28600 13000 3
AXK1528 15 28 2 11200 35500 11000 4
AXK1730 17 30 2 11800 38600 10000 4
AXK2035 20 35 2 12900 45600 8500 5
AXK2542 25 42 2 13800 57800 7000 7
AXK3047 30 47 2 15600 69500 6000 8
AXK3552 35 52 2 16900 85710 5500 10
AXK4060 40 60 3 27500 113500 4700 16
AXK4565 45 65 3 29050 127600 4200 18

                                                                                   

Certificate

Packing

FAQ

Q:Why choose us?                                                        

A:1. We are professional,have factory in ZheJiang for many years.

   2. We are experienced for 10 years.

   3. We can offer a various kind of bearing with high quality:Z1V1,Z2V2,Z3V3 and best price

 

Q:How is the quality of your products?                             

A:The same quality, we have lower price.The same price,we have better quality.

 

Q:Except Needle roller bearing,what other main bearing do you have?

A:Self-alaigning ball bearing,Cylindrical roller bearing,Taper Roller Bearing,Thrust roller bearing,Spherical roller bearing,Deep groove ball bearing,Angular contact ball bearing etc.

 

Q:Can I get Needle roller bearing free samples?                                                 

A:We will charge a little sample fee for our regular designs or customized ones, These charges will be refunded to you when your mass production order is confirmed.

 

Q:Can you make the products as our requirement?     

A:We have more than 10years’ OEM experience. We supply products fo more than 300 automobile parts factories.

 

 

 

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Product Name: Kt192317 Needle Roller Bearing
Width: 19mm
Bore Diameter: 23mm
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tapered roller bearing

What are the Steps for Proper Installation and Alignment of Tapered Roller Bearings?

Proper installation and alignment of tapered roller bearings are essential to ensure optimal performance, reliability, and longevity. Incorrect installation can lead to premature wear, reduced efficiency, and even catastrophic failure. Here are the steps to follow for the correct installation and alignment of tapered roller bearings:

  • 1. Clean and Prepare the Components:

Thoroughly clean the bearing components, including the bearing housing, shaft, and associated parts. Remove any dirt, debris, or old lubricant that could impact the bearing’s operation.

  • 2. Choose the Correct Tools:

Use appropriate tools and equipment for the installation, such as bearing heaters for controlled heating and proper fit. Avoid using excessive force or striking the bearing directly, as this can damage the components.

  • 3. Inspect the Bearings:

Before installation, visually inspect the tapered roller bearings for any signs of damage or defects. Ensure that the rollers and raceways are clean and free from contaminants.

  • 4. Apply Lubrication:

Apply the recommended lubricant to the rollers, raceways, and other bearing components. Proper lubrication is crucial for reducing friction, dissipating heat, and preventing premature wear.

  • 5. Mount the Bearings:

Mount the bearings onto the shaft or into the housing using appropriate methods. Avoid applying excessive force directly to the bearing components, as this can lead to damage. Utilize specialized tools like bearing pullers and press tools if necessary.

  • 6. Ensure Proper Alignment:

Proper alignment is critical to prevent excessive loads, misalignment, and premature wear. Use precision measurement tools to ensure the bearing is aligned with the shaft and housing within specified tolerances.

  • 7. Apply Controlled Heat:

If necessary, apply controlled heat to the bearing components to aid in expansion and facilitate proper fit. Ensure that the heat is applied uniformly to avoid distortion or damage.

  • 8. Use Adequate Preload:

If specified for your application, apply the appropriate axial preload to eliminate internal clearance and optimize load distribution among the rollers.

  • 9. Secure Bearings:

Secure the bearings in place using locking mechanisms, such as locknuts, to prevent unintended movement and ensure proper retention.

  • 10. Verify Fit and Function:

After installation, verify that the bearings are properly seated, aligned, and functioning as intended. Rotate the shaft to ensure smooth operation and absence of unusual noise or vibration.

  • 11. Document the Installation:

Keep a record of the installation process, including alignment measurements, preload values, and any relevant notes. This documentation can aid in future maintenance and troubleshooting.

Proper installation and alignment are essential to achieving optimal performance and longevity from tapered roller bearings. Following these steps ensures that the bearings operate smoothly and reliably within their intended applications.

cylindrical roller bearing

What are the potential challenges or limitations of using cylindrical roller bearings in specific industries?

While cylindrical roller bearings offer numerous advantages, there are also certain challenges and limitations associated with their use in specific industries. Let’s explore some of these potential challenges:

  • High-Speed Applications:

In industries that require high-speed rotating machinery, such as machine tools or centrifugal compressors, the limitations of cylindrical roller bearings become more pronounced. At high speeds, factors like centrifugal forces, increased operating temperatures, and the potential for roller skidding can impact the bearing’s performance. Special design considerations, such as optimized cage designs, precision manufacturing, and proper lubrication, are necessary to overcome these challenges and ensure reliable operation at high speeds.

  • High-Temperature Environments:

In industries like steel production, glass manufacturing, or certain types of furnaces, the operating temperatures can exceed the limits of standard cylindrical roller bearings. High temperatures can cause dimensional changes, affect the lubricant properties, and lead to accelerated wear or premature failure of the bearing components. To address this limitation, specialized high-temperature bearings with heat-resistant materials, advanced lubrication systems, and appropriate sealing mechanisms are required.

  • Heavy Load and Shock Loads:

Industries involving heavy machinery, such as construction, mining, or material handling, often subject cylindrical roller bearings to extremely heavy loads or sudden shock loads. These conditions can lead to increased stress, fatigue, or even permanent deformation of the bearing components. To overcome these challenges, bearings with higher load-carrying capacities, robust designs, and enhanced fatigue resistance are necessary. Additionally, proper maintenance practices and regular monitoring are crucial to detect any signs of excessive load or potential failure.

  • Contamination and Harsh Environments:

In industries characterized by harsh operating environments, such as agriculture, forestry, or automotive manufacturing, cylindrical roller bearings can face challenges related to contamination, moisture, or exposure to abrasive particles. Contaminants can accelerate wear, cause damage to the bearing surfaces, or impair the lubrication effectiveness. Sealing solutions, effective maintenance practices, and the selection of appropriate bearing materials are essential to mitigate these challenges and ensure reliable performance in such environments.

  • Space Limitations:

In certain industries like aerospace or robotics, where space is limited and compact designs are required, the size and dimensions of cylindrical roller bearings can pose challenges. Finding suitable bearing sizes that meet the specific space constraints while still fulfilling the load and performance requirements can be a limitation. In such cases, alternative bearing types or customized bearing solutions may be explored to overcome the space limitations.

It’s important to note that while there may be challenges or limitations associated with using cylindrical roller bearings in specific industries, advancements in bearing technology, materials, and design continue to address and overcome many of these limitations. Consulting with bearing manufacturers, considering application-specific requirements, and implementing appropriate maintenance practices can help mitigate these challenges and ensure the successful use of cylindrical roller bearings in a wide range of industries.

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 Custom 1688 Kt192317 Nk40/30 Na4834 Na4907 Needle/Tapered/Cylindrical Roller/Thrust Ball/Needle/Stainless Steel Bearing with High Performance   manufacturerChina Custom 1688 Kt192317 Nk40/30 Na4834 Na4907 Needle/Tapered/Cylindrical Roller/Thrust Ball/Needle/Stainless Steel Bearing with High Performance   manufacturer
editor by CX 2024-02-20