Product Description



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
6201 12 32 10 19000 24000 6.82 3.05 0.037
6202 15 35 11 18000 22000 7.65 3.72 0.045
6203 17 40 12 16000 20000 9.58 4.78 0.065
6204 20 47 14 14000 18000 12.8 6.65 0.106
6205 25 52 15 13000 15000 14 7.85 0.128
6206 30 62 16 11000 13000 19.5 11.3 0.199
6207 35 72 17 9200 11000 25.7 15.4 0.288
6208 40 80 18 8000 10000 29.5 18 0.368
6209 45 85 19 7000 9000 31.5 20.5 0.416
6210 50 90 20 6700 8500 35 23.2 0.463
6211 55 100 21 6000 7500 43.2 29.2 0.603
6212 60 110 22 5600 7000 47.8 32.8 0.789
6213 65 120 23 5000 6300 57.2 40 0.99
6214 70 125 24 4800 6000 60.8 45 1.084
6215 75 130 25 4500 5600 66 49.5 1.171
6216 80 140 26 4300 5300 71.5 54.2 1.448
6217 85 150 28 4000 5000 83.2 63.8 1.803
6218 90 160 30 3800 4800 95.8 71.5 2.17
6219 95 170 32 3600 4500 110 82.8 2.62
6220 100 180 34 3400 4300 122 92.8 3.19
6221 105 190 36 3200 4000 133 105 3.78
6222 110 200 38 3000 3800 144 117 4.42
6224 120 215 40 2600 3400 155 131 5.3
6226 130 230 40 2400 3200 165 148 6.12
6228 140 250 42 2000 2800 179 167 7.77
6230 150 270 45 1900 2600 203 199 9.78
6232 160 290 48 1800 2400 215 218 12.22
6234 170 310 52 1700 2200 245 260 15.241
6236 180 320 52 1600 2000 262 285 15.518
6238 190 340 55 1500 1900 285 322 18.691
6240 200 360 58 1400 1800 288 332 22.577

For more specifications, please click here!  


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



With several heat treatment lines of our own, we have the following advantages over other suppliers:

— We can flexibly adjust our production schedule, which is very advantageous in times of capacity constraints;
— We can control the process more strictly to ensure the quality of our products;
— And this also brings some advantages in terms of product cost. 



  · Constant temperature (20°C) and humidity (RH 52%) warehouse
  · Hundreds of models on hand
  · Valued at CNY 30-50 million
  · Available for fast shipping



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.


1, Inner package
   Corrosion and Dust Proof PE plastic film  / bag packing + Tube packing, or Wrapping  tape for larger bearings

2, Outer package
    Corrugated carton + Wooden pallet 


1, About the lead time.
Though we have a very large standing inventory, but this actually still depends on several factors, such as 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.

Our target customer is a regional or national distributor, or brand owner, with a significant volume of moving sales. Therefore, our minimum order quantity is one pallet,
regardless of whether the order is for 1 model or several.
However, you can try asking our salesmen if we accept orders smaller than 1 pallet.
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.

Material Option 2: Stainless Steel
MOQ: One Pallet
Seals Options: Z / 2z, Rz / 2rz, RS / 2RS, Rsz / Rzz, Zn / Znr
Lubrication: Grease or Oil
Tolerance: P0 P6 P5
Vibration: V V1 V2 V3 V4
US$ 0/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

deep groove ball bearing

Are there specific maintenance practices that can extend the life of deep groove ball bearings?

Proper maintenance practices are essential for maximizing the lifespan and performance of deep groove ball bearings. By following specific maintenance procedures, it is possible to extend the life of these bearings and ensure their smooth operation. Here’s a detailed explanation of specific maintenance practices that can help extend the life of deep groove ball bearings:

  • Regular Lubrication:
  • Proper lubrication is vital for reducing friction and preventing premature wear in deep groove ball bearings. Regularly lubricating the bearings with the appropriate lubricant helps maintain a protective film between the rolling elements and raceways, reducing friction and minimizing the risk of metal-to-metal contact. Lubrication intervals should be based on the manufacturer’s recommendations and operating conditions.

  • Correct Lubricant Selection:
  • Choosing the right lubricant is crucial for the optimal performance and longevity of deep groove ball bearings. Factors such as operating temperature, speed, load, and environmental conditions should be considered when selecting a lubricant. Consulting the bearing manufacturer’s recommendations or seeking expert advice can help ensure the correct lubricant is chosen for the specific application.

  • Proper Installation:
  • Correct installation techniques are essential to prevent damage to deep groove ball bearings. This includes ensuring proper alignment, applying appropriate mounting force, and using suitable tools and methods during installation. Improper installation can lead to misalignment, increased stress on the bearings, and premature failure. Following the manufacturer’s installation instructions or seeking professional assistance is recommended.

  • Regular Inspections:
  • Regular inspections allow for the early detection of any potential issues with deep groove ball bearings. Inspections can involve checking for signs of wear, damage, or contamination, as well as assessing the condition of seals or shields. Inspecting bearings at predetermined intervals and addressing any identified issues promptly can help prevent further damage and extend the bearing’s service life.

  • Effective Sealing:
  • Properly functioning seals or shields help protect deep groove ball bearings from contamination, moisture, and other harmful substances. Regularly inspecting and maintaining the seals or shields ensures their effectiveness in preventing the ingress of contaminants and preserving the lubricant’s integrity. If seals or shields are damaged or worn, they should be replaced promptly.

  • Appropriate Handling and Storage:
  • Proper handling and storage practices are crucial to prevent damage to deep groove ball bearings before installation. Bearings should be handled with clean hands or suitable gloves to avoid introducing contaminants. They should be stored in a clean, dry, and vibration-free environment, ideally in their original packaging or protective covers, until they are ready for use.

  • Monitoring Operating Conditions:
  • Regularly monitoring the operating conditions of machinery or equipment can help identify potential issues that may affect the performance of deep groove ball bearings. Factors such as load variations, temperature fluctuations, excessive vibration, or abnormal noise should be monitored and addressed promptly. Taking corrective actions to optimize operating conditions can help prolong the life of the bearings.

By implementing these specific maintenance practices, it is possible to extend the life of deep groove ball bearings and ensure their reliable and efficient operation. Following manufacturer recommendations, consulting with experts, and adhering to proper maintenance procedures are key to achieving optimal performance and longevity of deep groove ball bearings.

deep groove ball bearing

What advantages do deep groove ball bearings offer compared to other types of bearings?

Deep groove ball bearings offer several advantages compared to other types of bearings, making them a popular choice for many applications. Here’s a detailed explanation of the advantages of deep groove ball bearings:

  • Versatility:
  • Deep groove ball bearings are highly versatile and can accommodate both radial and axial loads. This versatility allows them to be used in a wide range of applications, eliminating the need for multiple specialized bearings. Their ability to handle different load types simplifies inventory management and reduces the complexity of bearing selection.

  • High-Speed Performance:
  • Deep groove ball bearings are designed for high-speed operation. The smooth, low-friction rolling contact between the steel balls and the raceway grooves enables them to rotate at high speeds with minimal heat generation. This makes them suitable for applications that require fast rotational speeds, such as electric motors, turbines, and machine tool spindles.

  • Low Friction and Energy Efficiency:
  • Deep groove ball bearings offer low-friction operation due to the rolling contact between the balls and the raceway grooves. This results in reduced energy losses due to friction, making the bearings more energy-efficient. The low-friction characteristics contribute to improved system efficiency, reduced power consumption, and longer operating life.

  • Quiet and Smooth Operation:
  • Deep groove ball bearings provide quiet and smooth operation. The rolling contact between the balls and the raceway grooves produces less noise and vibration compared to other types of bearings. This makes deep groove ball bearings suitable for applications that require low-noise operation, such as household appliances, office equipment, and precision machinery.

  • Simple and Cost-Effective Installation:
  • Deep groove ball bearings are relatively easy to install and require minimal additional components. They can be easily mounted on shafts or in housing units using standard bearing mounting methods. This simplicity and ease of installation contribute to cost savings in terms of labor and equipment required for installation.

  • Wide Availability and Standardization:
  • Deep groove ball bearings are widely available and come in standardized sizes and configurations. This standardization simplifies the replacement process, as bearings with the same specifications can be easily sourced from various manufacturers. The wide availability and standardization of deep groove ball bearings contribute to shorter lead times, reduced downtime, and increased equipment availability.

In summary, deep groove ball bearings offer advantages such as versatility, high-speed performance, low friction, energy efficiency, quiet operation, simplicity of installation, and wide availability. These advantages make deep groove ball bearings a preferred choice in various applications across industries.

deep groove ball bearing

How do deep groove ball bearings enhance the performance of automotive components like alternators?

Deep groove ball bearings play a crucial role in enhancing the performance of automotive components, including alternators. These bearings provide several benefits that contribute to the efficient and reliable operation of alternators. Here’s a detailed explanation of how deep groove ball bearings enhance the performance of automotive components like alternators:

  • Reduced Friction:
  • Deep groove ball bearings are designed to minimize friction between the rotating components of an alternator. The smooth and precise rolling action of the bearings reduces friction losses, allowing the alternator to operate more efficiently. This leads to improved energy conversion and reduced power consumption, resulting in enhanced overall performance.

  • High Load Capacity:
  • Automotive alternators often experience varying loads during operation. Deep groove ball bearings are engineered to handle both radial and axial loads effectively. They have a high load capacity, enabling them to withstand the demanding conditions and loads encountered in alternators. This ensures the bearings can support the rotating components of the alternator without premature wear or failure.

  • Enhanced Durability:
  • Deep groove ball bearings are manufactured using high-quality materials and advanced manufacturing processes. This results in bearings that are highly durable and resistant to wear, even under demanding operating conditions. The robust construction and materials used in deep groove ball bearings contribute to their longevity and ability to withstand the rigors of automotive applications, including alternators.

  • Smooth Operation:
  • Deep groove ball bearings provide smooth and precise rolling motion, which is essential for the optimal performance of alternators. The low friction and high rotational accuracy of these bearings ensure that the alternator operates smoothly and without excessive vibration or noise. This smooth operation enhances the efficiency and reliability of the alternator, leading to improved overall performance.

  • Reduced Maintenance:
  • The use of deep groove ball bearings in automotive alternators helps reduce the maintenance requirements. These bearings are designed for long service life and require minimal maintenance when properly lubricated and installed. Their durability and resistance to wear mean that they can operate reliably for extended periods without the need for frequent inspections or replacements, reducing downtime and maintenance costs.

  • Compact Design:
  • Deep groove ball bearings have a compact design, which is advantageous for automotive applications where space is often limited. The compact size of these bearings allows for more efficient packaging and integration within the alternator assembly. This compact design contributes to the overall efficiency and performance of the alternator while optimizing the use of available space.

Overall, deep groove ball bearings enhance the performance of automotive components like alternators by reducing friction, providing high load capacity, enhancing durability, ensuring smooth operation, reducing maintenance requirements, and offering a compact design. These benefits collectively result in improved energy efficiency, reliability, and longevity of the alternator, ultimately enhancing the performance of the automotive system as a whole.

China OEM Motor Parts Timken,NSK,NTN,Koyo,NACHI Affordable Alternatives 6201z 6202 6203 6204 6003 2RS 6208 608 2z 6309 6305 6307 Deep Groove Ball Bearings for Skateboard.   bearing and raceChina OEM Motor Parts Timken,NSK,NTN,Koyo,NACHI Affordable Alternatives 6201z 6202 6203 6204 6003 2RS 6208 608 2z 6309 6305 6307 Deep Groove Ball Bearings for Skateboard.   bearing and race
editor by CX 2023-11-13