China Best Sales CZPT 3007207 3007208 3007209 3007210 3007211 3007212 3007213 32217 Tapered Roller Bearing supplier

Product Description

 NSK 3 3 3 32217 Tapered Roller Bearing

Product Description

Tapered roller bearings refer to radial thrust rolling bearings whose rolling elements are tapered rollers. There are 2 kinds of small cone angle and large cone angles. The small cone angle mainly bears the combined radial and axial loads dominated by radial loads. It is often used in pairs and installed in reverse. The inner and outer races can be installed separately, and the radial and axial clearances can be adjusted during installation and use; The large cone angle mainly bears the combined axial and radial loads, which are mainly axial loads. Generally, it is not used to bear pure axial loads alone but can be used to bear pure radial loads when arranged in pairs (the ends with the same name are installed opposite to each other).

Tapered roller bearings are separable bearings, and both the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into different structural types such as single-row, double-row, and four-row tapered roller bearings according to the number of rows of rollers installed. Single-row tapered roller bearings can bear radial loads and axial loads in 1 direction. When the bearing is subjected to radial load, an axial component force will be generated, so another bearing that can withstand the axial force in the opposite direction is needed to balance it.

Size range
The basic dimensions of CZPT tapered roller bearings are listed in the dimension data table,

Single-row tapered roller bearings:
Inner diameter size range: 20mm~1270mm
Outer diameter range: 40mm~1465mm
Width size range: 15mm~240mm

Double-row tapered roller bearings:
Inner diameter size range: 38mm~1560mm
Outer diameter range: 70mm~1800mm
Width size range: 50mm~460mm

Four-row tapered roller bearings:
Inner diameter size range: 130mm~1600mm
Outer diameter size range: 200mm~2000mm
Width size range: 150mm~1150mm

Product Parameters

Product Name 

Tapered Roller Bearing


Tapered Roller Bearing


Tapered roller, retainer, inner and outer ring tapered

Applicable Industries

Building materials workshop, construction engineering, machinery maintenance workshop, retail, manufacturing plant, motor,
automobile hub, agricultural machinery

Brand Name




Accuracy Class


Seal Number of Rows

Single row / Double row / Four-row


ZheJiang , China






Long-life High Speed

      Bearing No.                Dimension (mm)               Basic Load     Weight
           Model No. d D T B C r(min) r1(min)
35712 15 35 11.75 11 10 0.6 0.6 0.053
35713 17 40 13.25 12 11 1 1 0.081
32303 17 47 15.25 14 12 1 1 0.133
30303 17 47 20.25 19 16 1 1 0.176
32004X 20 42 15 15 12 10.6 0.6 0.102
35714 20 47 15.25 14 12 1 1 0.127
30304 20 52 16.25 16 13 1.5 1.5 0.179
32304 20 52 22.25 21 18 1.5 1.5 244
32005X 25 47 15 15 11.5 0.6 0.6 0.118
35715 25 52 16.25 15 13 1 1 0.155
32205 25 52 19.25 18 16 1 1 0.188
33205 25 52 22 22 18 1 1 0.225
32305 25 62 25.25 24 20 1.5 1.5 0.386
30305 25 62 18.25 17 15 1.5 1.5 0.273
32305 25 62 25.25 24 20 1.5 1.5 0.386
32006X 30 55 17 17 13 1 1 0.177
35716 30 62 17.25 16 14 1 1 0.236
32206 30 62 21.25 20 17 1 1 0.292
33206 30 62 25 25 19.5 1 1 0.359
30306 30 72 20.75 19 16 1.5 1.5 0.411
32306 30 72 28.75 27 23 1.5 1.5 0.588
320/28X 32 52 16 16 12 1 1 0.15
320/32AX 32 58 17 17 13 3.6 1 0.19
320/32X 35 58 17 17 13 1 1 0.19
32007X 35 62 18 18 14 1 1 0.231
35717 35 72 18.25 17 15 1.5 1.5 0.344
32207 35 72 24.25 23 19 1.5 1.5 0.551
33207 35 72 28 28 22 1.5 1.5 0.551
30307 35 80 22.75 21 18 2 1.5 0.527
32307 35 80 32.75 31 25 2 1.5 0.776
31307 35 80 22.75 21 15 2 1.5 0.518
32008X 40 68 19 19 14.5 1 1 0.282
35718 40 80 19.75 18 16 1.5 1.5 0.434
32208 40 80 24.75 23 19 1.5 1.5 0.554
33208 40 80 32 32 25 1.5 1.5 0.758
30308 40 90 25.25 23 20 2 1.5 0.757
32308 40 90 35.25 33 27 2 1.5 1.06
32009X 45 75 20 20 15.5 1 1 0.354
33109 45 80 36 26 20.5 1.5 1.5 0.563
35719 45 85 20.75 19 16 1.5 1.5 0.502
32209 45 85 24.75 23 19 1.5 1.5 0.597
33209 45 85 32 32 25 1.5 1.5 0.818
30309 45 100 27.25 25 22 2 1.5 1.01
32209 45 100 38.25 39 30 2 1.5 1.43


Detailed Photos



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?
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: Multi-column
Outer Dimension: Micro(≤26mm)
US$ 10/Piece
1 Piece(Min.Order)


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

tapered roller bearing

Can you Explain the Design and Construction of Tapered Roller Bearings?

The design and construction of tapered roller bearings are characterized by their conical geometry and specific components that enable them to handle radial and axial loads simultaneously. Here’s an overview of their design and construction:

  • Components:

Tapered roller bearings consist of the following components:

  • Inner Ring:

The inner ring has a conical raceway on its inner surface, which matches the conical shape of the rollers. It serves as the raceway for the rollers and provides support to the rotating assembly.

  • Outer Ring:

The outer ring also features a conical raceway on its inner surface that complements the shape of the rollers. The outer ring provides a rigid structure to house the entire bearing assembly.

  • Tapered Rollers:

The rollers have a conical shape with varying diameters along their length. This design allows the rollers to make point contact with the inner and outer raceways, distributing loads efficiently.

  • Cage:

The cage or retainer holds the rollers in position, maintaining proper spacing and preventing them from coming into contact with each other. The cage material can vary, and its design may affect factors like friction and heat generation.

  • Conical Geometry:

The distinguishing feature of tapered roller bearings is their conical geometry. The conical angle is defined by the contact angle between the roller axis and the bearing axis. This angle facilitates effective load distribution and axial load support.

  • Load Distribution:

The conical shape of the rollers and raceways allows tapered roller bearings to handle both radial and axial loads. Radial loads are primarily supported by the larger diameter of the rollers at the large end of the cone, while axial loads are absorbed by the smaller diameter near the small end of the cone.

  • Adjustable Clearance and Preload:

Many tapered roller bearings allow for adjustable internal clearance or preload. This feature enables fine-tuning of the bearing’s internal play, optimizing performance and minimizing friction.

  • Thrust Capability:

Tapered roller bearings can handle thrust (axial) loads in one direction, making them suitable for applications where axial loads need to be managed along with radial loads.

  • Applications:

Tapered roller bearings find applications in various industries, including automotive, heavy machinery, aerospace, and more. They are used in scenarios that require efficient load distribution and handling of combined loads.

In summary, tapered roller bearings are designed with conical geometry to accommodate both radial and axial loads. Their specific components, such as tapered rollers and a cage, work together to ensure effective load distribution, making them suitable for a wide range of industrial applications.

tapered roller bearing

How does Proper Lubrication Impact the Performance and Longevity of Tapered Roller Bearings?

Proper lubrication is essential for ensuring optimal performance and longevity of tapered roller bearings. Lubrication plays a critical role in reducing friction, preventing wear, and managing heat generated during operation. Here’s how proper lubrication impacts tapered roller bearings:

  • Reduced Friction:

Lubrication forms a thin film between the rolling elements and raceways, reducing direct metal-to-metal contact. This minimizes friction and the associated heat generation, allowing the bearing to operate smoothly and efficiently.

  • Wear Prevention:

Lubrication forms a protective barrier that prevents wear and surface damage. Without proper lubrication, friction can lead to accelerated wear, pitting, and even surface scoring, shortening the bearing’s lifespan.

  • Heat Dissipation:

Effective lubrication helps dissipate heat generated during operation. This is especially crucial in high-speed applications where excessive heat can lead to premature bearing failure or degradation of lubricant properties.

  • Corrosion Protection:

Lubrication helps create a barrier that protects bearing surfaces from environmental factors that could lead to corrosion. This is particularly important in applications exposed to moisture, chemicals, or other corrosive agents.

  • Noise and Vibration Reduction:

Proper lubrication can dampen vibrations and reduce noise by providing a cushioning effect between the rolling elements and raceways. This contributes to smoother and quieter operation.

  • Longevity:

Well-lubricated bearings experience less wear and stress, leading to extended service life. Bearings that are inadequately lubricated or run dry are prone to premature failure due to excessive wear, heat buildup, and damage to bearing surfaces.

  • Efficiency:

Adequate lubrication maintains the bearing’s efficiency by minimizing energy losses due to friction. Bearings that lack proper lubrication require more energy to overcome higher friction levels, resulting in reduced efficiency.

  • Lubrication Methods:

Various lubrication methods are available, including grease lubrication and oil lubrication. The choice depends on factors such as speed, load, temperature, and application requirements.

To ensure proper lubrication:

  • Follow Manufacturer Recommendations:

Consult the bearing manufacturer’s recommendations for lubricant type, viscosity, and replenishment intervals.

  • Monitor and Maintain:

Regularly monitor the condition of the lubricant and the bearing’s performance. Implement a maintenance schedule for lubricant replacement or replenishment.

  • Environmental Considerations:

Consider the operating environment’s temperature, contamination levels, and exposure to external elements. Some applications may require special lubricants for extreme conditions.

In summary, proper lubrication is crucial for maintaining tapered roller bearings’ performance, preventing wear, reducing friction and heat, and extending their lifespan. A well-lubricated bearing contributes to smoother operation, lower maintenance costs, and improved efficiency.

tapered roller bearing

What Factors should be Considered when Selecting a Tapered Roller Bearing for a Specific Application?

Choosing the right tapered roller bearing for a specific application involves considering various factors to ensure optimal performance and reliability. Here are the key factors to consider:

  • Load Requirements:

Assess the types and magnitudes of both radial and axial loads the bearing will experience. Choose a tapered roller bearing with a load capacity that comfortably exceeds the expected loads to prevent premature wear or failure.

  • Speed:

Determine the required rotational speed of the bearing. High-speed applications may require bearings designed for reduced friction and heat generation to maintain efficiency and avoid overheating.

  • Precision and Tolerance:

Consider the level of precision required for the application. Tapered roller bearings are available in different precision classes, such as ABEC (Annular Bearing Engineering Committee) grades, which impact factors like smoothness and accuracy of rotation.

  • Mounting and Installation:

Assess the available space for mounting the bearing and consider the ease of installation. Bearings with adjustable clearance or preload might be advantageous for fine-tuning the bearing’s internal play.

  • Temperature and Environment:

Take into account the operating temperature range and environmental conditions of the application. Extreme temperatures or corrosive environments may require specific bearing materials or coatings.

  • Lubrication:

Choose an appropriate lubricant based on the application’s speed, temperature, and load conditions. Proper lubrication ensures smooth operation, reduces friction, and prolongs the bearing’s lifespan.

  • Cost and Budget:

Consider the budget allocated for bearings. High-precision or specialized bearings may come at a higher cost, but their performance benefits can outweigh the initial investment over the bearing’s service life.

  • Application Type:

Identify the specific industry and application in which the bearing will be used. Tapered roller bearings are employed in various sectors, including automotive, heavy machinery, aerospace, and more.

  • Expected Lifespan:

Estimate the required bearing lifespan for the application. Factors such as load, speed, and maintenance practices can impact the bearing’s longevity.

  • Bearing Size and Design:

Choose a bearing size that fits within the application’s space constraints while providing the necessary load capacity. The design, including the number and arrangement of rollers, can influence load distribution and performance.

  • Maintenance Requirements:

Consider the maintenance schedule and accessibility for bearing inspection and replacement. Bearings in applications with limited maintenance intervals may require enhanced durability.

In conclusion, selecting a tapered roller bearing for a specific application involves assessing load requirements, speed, precision, mounting, temperature, lubrication, cost, application type, expected lifespan, bearing size, and maintenance considerations. Careful evaluation of these factors ensures that the chosen bearing meets the demands of the application while providing reliable performance and longevity.

China Best Sales CZPT 3007207 3007208 3007209 3007210 3007211 3007212 3007213 32217 Tapered Roller Bearing   supplierChina Best Sales CZPT 3007207 3007208 3007209 3007210 3007211 3007212 3007213 32217 Tapered Roller Bearing   supplier
editor by CX 2024-03-27

Tapered Roller Bearing

As one of the leading tapered roller bearing manufacturers, suppliers, and exporters of mechanical products, We offer tapered roller bearing and many other products.

Please get in touch with us for details.

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Manufacturer supplier exporter of tapered roller bearing.

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