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China best Hot Sale China Supplier High Speed 17X40X12mm ABEC3 Radial 6003 2RS 6008 2z Deep Groove Ball Bearing for Motorcycle Parts double row ball bearing

Product Description


We can provide manufacturing capabilities and services of regular bearings for you, or customized non-standard bearings as you required.

  — Dimensions
  — Material
  — Tolerance standard

  — Logo (Laser Marking)
  — Package Design

With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.

We use advanced CNC turning, grinding, and superfinishing machines to ensure high, stable, and accurate machining.  All of your goods, from the most economical category, to the highest rated category, will always be manufactured precisely to the standards you require.


Heat treatment is 1 of the crucial processes to ensure high performance of bearing materials. Compared with other manufacturers, we can produce higher quality bearings at smaller cost, with a more flexible and controllable production schedule, and in a shorter time

We have 6 heat treatment production lines.

Bearings are heated uniformly, with small deformation and little/no oxidized decarburization, which can make them have high hardness, high fatigue resistance, good wear resistance, dimensional stability, and excellent mechanical strength.


All our products are characterized by low noise, low friction and long life.  This is due to our attention to the roundness, waviness and surface roughness of bearing raceway.

Our products fully meets the requirements of national and international standards accorind to the testing result of
roughness, roundness, hardness, vibration noise, vibration velocity.

1, Inner package
   Corrosion and Dust Proof PE plastic film  / bag packing + Tube packing, or Wrapping  tape for larger bearings.
2, Corrugated Individual Box
   Our attractive sales-helpful “3-JOYS” package, or as the design of your package.
3, Outer package
  Corrugated carton + Wooden pallet 

  · Constant temperature (20°C) and humidity (RH 52%) warehouse
  · Hundreds of models on hand, short delivery time.



 We are happy to send you free samples of our bearings for field   testing. All transportation costs will be paid by us.

 Please note: Depending on the model and value of samples,   this policy may not apply!

 Please contact our sales staff for details.


To facilitate your payment, we offer a variety of options! 

1, About the lead time.
This depends on several factors, like Is the production schedule tight? Is there a corresponding model in stock, and is there enough of this model in stock? How many pcs of that model would be ordered?
Simply speaking, based on a 20′ GP container load:

If the model your Preferred is Sufficient stock Lead Time
Regular models YES Within 7 days
Regular models NO Within 30 days
Non-regular model NO About 50 days

For accurate estimate, please contact with our sale stuff. Thanks.

2, Minimum order quantity. 

Even just ONE piece of bearing is ok for us.

3, If you don’t know which model is the right choice…

We would like to give you some advise if you like, according to the real situation and demand of your local market. Our purpose is to help you to get proper and right models for your customers, so that you would make a better sales and income finally.

4, Factory Inspection

We surely would welcome you or your representatives to come to our plants or working offices to take a good look and chat with our hardworking CZPT employees. Ask our sales stuff and she/he will arrange that for you.


Subject Symbol Description
Sealing & Sealing type Z Metal shield on 1 side.
ZZ Metal shields on both sides.
RS Rubber seal on 1 side.
2RS Rubber seals on both sides.
ZNR Shield on 1 side, snap ring groove in the outer ring, with snap ring on the opposite side of the shield
2ZNR Shield on both sides, snap ring groove in the outer ring, with snap ring
ZNBR Shield on 1 side, snap ring groove in the outer ring, with snap ring on the same side as the shield
Vibration Velocity V Normal vibration level. Is not indicated as a standard.
V1 Lower vibration level than normal.
V2 Lower vibration level than V1.
V3 Lower vibration level than V2.
V4 Lower vibration level than V3.
Tolerances P0(ABEC1) Bearings in standard tolerance
P6(ABEC3) Tighter tolerance than standard bearings
P5(ABEC5) Tolerance tighter than P6
P4(ABEC7) Tolerance tighter than P5
P2(ABEC9) Tolerance tighter than P4
Radial internal clearance C1 Smaller clearance than C2
C2 Smaller clearance than CN
CN(C0) Clearance than normal
C3 Clearance larger than CN
C4 Clearance larger than C3
C5 Clearance larger than C4
Snap Ring Groove N Snap ring groove in the outer ring
NR Snap ring groove in the outer ring, with snap ring
N1 One locating slot in 1 outer ring side face
R Flanged outer ring
Other technical modifications NR Groove with inserted snap ring in outer ring.
N Snap ring groove in the outer ring.
SS Stainless steel.

Cage Materials J Pressed steel cages
M Solid brass cage
F Solid cage made from steel or iron
Y Pressed brass cages.
T Laminated phenolic cages.
TN Polyamide cages
TH Glass-fiber reinforced phenolic resin cages.
TV Polyamide cage
Cage Designs P Window-type cage
H Claw-type cage
A Cage guided on the bearing outer ring
B Cage-guided on the bearing inner ring
S Cage with lubricating slots in the guiding surfaces
D Carbonitriding cage
W Welded cage
R Riveted Cage
Cage Types N/A Claw-type cage
Ribbon cage
Crown cage
Sunflower cage
Tapered cage


This tech sheet may not contain all or every piece of information you want to know. Please contact our sales staff to obtain or compare the information.

Designation Boundary Dimension (mm) Limiting Speed (rpm) Load Rating (Kn) Weight
Designation Inner Diameter
Outside Diameter
Grease Lubrication Oil Lubrication Dynamic Load
Static Load
16002 15 32 8 19000 24000 5.6 2.8 0.571
16003 17 35 8 18000 22000 6 3.3 0.032
16004 20 42 8 18000 19000 7.9 4.5 0.05
16005 25 47 8 15000 18000 8.85 5.6 0.06
16006 30 55 9 13000 15000 11.2 7.35 0.085
16007 35 62 9 11000 13000 12.2 8.85 0.11
16008 40 68 9 9000 11000 12.6 9.6 0.125
16009 45 75 10 8000 10000 15.6 12.2 0.155
16571 50 80 10 8000 9500 16.1 13.1 0.166
16011 55 90 11 7000 8500 19.4 16.2 0.207
16012 60 95 11 6300 7500 19.9 17.5 0.224
16013 65 100 11 6000 7000 20.5 18.6 0.241
16014 70 110 13 5600 6700 27.9 25.0 0.386
16015 75 115 13 5300 6300 28.7 26.8 0.411
16016 80 125 14 5000 6000 33.1 31.4 0.539
16017 85 130 14 4500 5600 34 33.3 0.968
16018 90 140 16 4300 5300 41.5 39.3 0.671
16019 95 145 16 4000 5000 42.7 41.9 0.71
16571 100 150 16 3800 4800 43.8 44.3 0.74
16571 105 160 18 3600 4500 51.8 50.6 1
16571 110 170 19 3400 4300 57.4 56.7 1.27
16571 120 180 19 3000 3800 58.8 60.4 1.374
16026 130 200 22 2800 3600 79.7 79.2 1.868
16571 140 210 22 2400 3200 82.1 85 2
16030 150 225 24 2200 3000 91.9 98.5 2.638
16032 160 240 25 2000 2800 98.7 107 2.835
16034 170 260 28 1900 2600 118 130 4.157
16036 180 280 31 1800 2400 144 157 5.135
16038 190 290 31 1700 2200 149 168 5.429
16040 200 310 34 1800 2000 167 191 6.624
16044 220 340 37 1400 1800 181 216 9.285


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Type: Wheel Hub Bearing
Material: Bearing Steel
Tolerance: P0 P5 P6
Clearance: C0 C1 C2 C3 C4 C5
Material Option 2: Stainless Steel
MOQ: One Pallet
US$ 0/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

radial bearing

How do radial bearings differ from other types of bearings, such as thrust bearings?

Radial bearings and thrust bearings are two distinct types of bearings, each designed to handle different types of loads and forces. Here is a detailed explanation of how radial bearings differ from other types of bearings, particularly thrust bearings:

1. Load Orientation:

The primary difference between radial bearings and thrust bearings lies in the orientation of the loads they can handle. Radial bearings are primarily designed to support radial loads, which are forces that act perpendicular to the shaft’s axis. They are specifically optimized to distribute and support these radial loads, such as the weight of rotating shafts or components, belt tension, or pulley forces.

On the other hand, thrust bearings are designed to handle axial (thrust) loads, which are forces that act parallel to the shaft’s axis. These loads can include pushing or pulling forces, as well as the weight of components or structures that exert an axial force. Thrust bearings are specifically engineered to accommodate and transmit these axial loads while minimizing friction and ensuring smooth operation.

2. Bearing Design:

Radial bearings and thrust bearings have different design features to suit their respective load orientations. Radial bearings typically have an inner ring mounted on the rotating shaft and an outer ring that remains stationary. The rolling elements, such as balls or rollers, are positioned between the inner and outer rings and distribute the radial load. The design of radial bearings focuses on providing optimal support and distributing the load evenly across the rolling elements.

Thrust bearings, on the other hand, have different design configurations to handle axial loads. They can be categorized into several types, including ball thrust bearings, roller thrust bearings, tapered roller thrust bearings, and spherical roller thrust bearings. These designs often incorporate specialized features such as raceway profiles, cage structures, and rolling element arrangements to handle axial loads while minimizing friction and accommodating misalignments.

3. Load Capacity and Direction:

Radial bearings and thrust bearings have different load capacities and capabilities in terms of load direction. Radial bearings are optimized to handle primarily radial loads, and their load capacity is typically specified for radial forces. While they can withstand limited axial loads, their axial load capacity is lower compared to dedicated thrust bearings. Radial bearings are not designed to handle significant axial forces and may experience premature wear or failure if subjected to excessive axial loads.

Thrust bearings, on the other hand, are specifically engineered to handle axial loads. They have higher axial load capacities compared to radial bearings and are designed to transmit and support forces acting parallel to the shaft’s axis. Thrust bearings are capable of withstanding substantial axial loads without sacrificing their performance or longevity.

4. Application and Usage:

Due to their load orientation and design characteristics, radial bearings and thrust bearings are used in different applications. Radial bearings are commonly employed in machinery and equipment where supporting radial loads is the primary requirement. They are widely used in applications such as electric motors, pumps, fans, conveyors, automotive components, and industrial machinery. Radial bearings are versatile and can handle various operating conditions, speeds, and loads, making them suitable for a wide range of mechanical systems.

Thrust bearings, on the other hand, are specifically used in applications where axial loads need to be supported and transmitted. They find application in machinery and equipment such as thrust ball screws, automotive transmissions, steering systems, and heavy machinery that requires precise axial positioning. Thrust bearings are crucial for maintaining the axial integrity and stability of components or structures subjected to thrust forces.

5. Combination Bearings:

In some cases, there are bearings that can handle both radial and axial loads, commonly known as combination bearings or angular contact bearings. These bearings are designed with a specific contact angle between the rolling elements and raceways, allowing them to simultaneously support radial and axial loads. Combination bearings are often used in applications where both types of loads are present, such as machine tool spindles or certain types of gearboxes. However, it’s important to note that combination bearings may have limitations in terms of load capacities and the ratio of radial to axial loads they can handle.

In summary, the primary differences between radial bearings and other types of bearings, such as thrust bearings, lie in their load orientations, design features, load capacities, and applications. Radial bearings are optimized for supporting radial loads, while thrust bearings are specifically designed to handle axial loads. Understanding these differences is crucial for selecting the appropriate bearing type for a specific mechanical application.

radial bearing

Can radial bearings be customized or modified for unique industrial needs?

Radial bearings can indeed be customized or modified to meet unique industrial needs. Manufacturers often offer customization options to provide bearings that are tailored to specific application requirements. Customization allows for the optimization of various aspects of the bearing, such as size, design, materials, lubrication, and sealing, among others. Here’s a detailed explanation of the customization and modification possibilities for radial bearings:

1. Size and Design:

Radial bearings can be customized in terms of size and design to fit specific space constraints or load requirements. Manufacturers can adjust the dimensions of the bearing, such as the bore diameter, outer diameter, or width, to match the application’s unique specifications. Additionally, the bearing design can be modified to accommodate specific performance needs, such as increased load capacity, enhanced stiffness, or improved rotational speed capabilities.

2. Materials:

The choice of materials used in radial bearings can be customized based on the application’s needs. Different materials offer varying levels of strength, corrosion resistance, temperature resistance, and other properties. For example, in high-temperature environments, bearings can be customized with heat-resistant materials, such as ceramic or high-temperature alloys, to ensure reliable operation. Similarly, for applications where corrosion is a concern, bearings can be customized with corrosion-resistant coatings or materials.

3. Lubrication:

Radial bearings can be customized in terms of lubrication requirements. The lubrication type and quantity can be modified to suit specific operating conditions. For instance, bearings operating in high-speed applications may require specialized lubricants that can withstand high temperatures and provide sufficient lubrication film thickness. Customized lubrication solutions can help optimize bearing performance, reduce friction, and extend the bearing’s service life.

4. Sealing and Protection:

Bearing customization can include modifications to the sealing and protection features. Seals or shields can be customized to provide enhanced protection against contaminants, moisture, or other environmental factors. By choosing the appropriate sealing solution, the ingress of dust, dirt, or liquids can be minimized, improving the bearing’s reliability and longevity. Customized sealing options can also help reduce maintenance requirements and prevent premature failure.

5. Specialized Coatings:

In certain industrial applications, specialized coatings can be applied to radial bearings to enhance their performance. These coatings can provide benefits such as increased wear resistance, reduced friction, improved corrosion resistance, or enhanced operating characteristics under specific conditions. Customized coatings can be designed based on the specific application needs, ensuring optimal performance and longevity of the bearings in demanding environments.

6. Mounting and Fit:

Customization of radial bearings can include modifications to the mounting and fit requirements. For unique applications where standard mounting methods are not suitable, manufacturers can customize the bearing’s mounting features to ensure proper fit and alignment within the system. This may involve modifications to the bearing’s outer ring, inner ring, or flange design to accommodate specific mounting arrangements or requirements.

7. Application-Specific Considerations:

Manufacturers of radial bearings are often willing to work closely with customers to understand their unique industrial needs and develop customized solutions. By considering application-specific factors such as load conditions, operating environment, speed requirements, and space limitations, manufacturers can tailor the design and specifications of radial bearings to provide optimal performance and reliability.

It is important to note that customization of radial bearings may involve additional costs and lead time compared to off-the-shelf bearings. However, the benefits of having bearings specifically tailored to the application’s requirements often outweigh these considerations, as they can result in improved performance, increased service life, and reduced downtime.

Overall, radial bearings can be customized or modified to meet unique industrial needs, allowing for the optimization of various parameters to ensure optimal performance, reliability, and longevity in specific applications. Collaborating with bearing manufacturers or industry experts can help identify the customization possibilities and develop tailored solutions that address the specific requirements of the industrial application.

radial bearing

What is the role of cage design and materials in radial bearing performance and durability?

The cage design and materials used in radial bearings play a crucial role in their performance and durability. The cage, also known as the bearing retainer or separator, holds the rolling elements (such as balls or rollers) in position relative to each other. It serves multiple functions that directly impact the overall performance and longevity of the bearing. Here’s a detailed explanation of the role of cage design and materials in radial bearing performance and durability:

1. Positioning and Guidance:

The primary function of the cage is to position and guide the rolling elements within the bearing. It ensures proper spacing and alignment between the rolling elements, preventing them from coming into contact with each other. The cage helps maintain a uniform load distribution and prevents excessive friction or wear that can occur when the rolling elements are allowed to move freely. An effective cage design and material selection are essential for maintaining accurate positioning and guidance of the rolling elements, resulting in improved performance and durability of the bearing.

2. Friction and Heat Generation:

The cage design and materials significantly influence the friction and heat generation within the bearing. The cage should have low friction characteristics to minimize energy losses and prevent excessive heat buildup. A well-designed cage with appropriate materials can reduce contact friction between the rolling elements and the cage itself, resulting in lower operating temperatures and improved efficiency. Additionally, the cage should have good thermal conductivity to dissipate heat effectively, preventing thermal damage to the bearing components.

3. Lubricant Distribution:

The cage design plays a role in facilitating the distribution of lubricant within the bearing. It should allow for proper lubricant flow and distribution to ensure all bearing surfaces are adequately lubricated. Effective lubrication helps reduce friction, minimize wear, and prevent premature failure. The cage should have features or cutouts that allow lubricant to reach all contact points between the rolling elements and the raceways, ensuring optimal lubrication throughout the bearing’s service life.

4. Load Handling Capacity:

The cage design and materials contribute to the load handling capacity of the bearing. The cage should be rigid and strong enough to withstand the applied loads without deformation or failure. It should effectively distribute the load between the rolling elements, preventing excessive stress on individual components. The choice of cage material is crucial in determining its strength and load-carrying capability. Different materials, such as steel, brass, or synthetic polymers, offer varying levels of strength, rigidity, and resistance to wear and fatigue, allowing for optimal load handling capacity.

5. Noise and Vibration:

The cage design and materials can influence the generation of noise and vibration in the bearing. A well-designed cage with appropriate materials can help dampen vibrations and reduce noise levels during operation. The cage should have sufficient stiffness and damping properties to absorb and dissipate vibrations, minimizing their transmission to other parts of the machinery or equipment. This not only improves the overall performance and efficiency of the bearing but also enhances the comfort of operators and reduces the risk of damage caused by excessive vibrations.

6. Corrosion and Contamination Resistance:

The choice of cage material is crucial in determining its resistance to corrosion and contamination. Bearings operating in harsh environments or exposed to moisture, chemicals, or abrasive particles require cages made from corrosion-resistant materials. Common materials used for cage construction, such as stainless steel or synthetic polymers, offer excellent resistance to corrosion and contamination, enhancing the durability and reliability of the bearing in challenging operating conditions.

7. Maintenance and Service Life:

The cage design and materials can affect the maintenance requirements and service life of the bearing. A well-designed cage with high-quality materials can contribute to extended bearing life by reducing wear, preventing premature failure, and minimizing the need for frequent maintenance. Bearings with superior cage materials and designs often exhibit improved durability and longer service intervals, resulting in reduced downtime and lower maintenance costs.

When selecting a radial bearing, it is essential to consider the specific application requirements, operating conditions, and the type of loads it will be subjected to. The cage design and materials should be chosen based on these factors to ensure optimal performance, durability, and reliability of the bearing.

China best Hot Sale China Supplier High Speed 17X40X12mm ABEC3 Radial 6003 2RS 6008 2z Deep Groove Ball Bearing for Motorcycle Parts   double row ball bearingChina best Hot Sale China Supplier High Speed 17X40X12mm ABEC3 Radial 6003 2RS 6008 2z Deep Groove Ball Bearing for Motorcycle Parts   double row ball bearing
editor by CX 2024-04-17