Product Description

Detailed Photos

Product Parameters

No. Size Rated load Weight
Inner Diameter Out Diameter Width (B) Chamfering Dynamic Static
d D Open Type Shielded Type rsmin (r) Cr Cr Close
mm inch mm inch mm inch mm inch mm inch N N KG
683 3 0.1181  7 0.2756  2 0.0787  3 0.1181  0.1 0.004  420 135 0.571 
684 4 0.1575  9 0.3543  2.5 0.0984  4 0.1575  0.1 0.004  480 170 0.571 
685 5 0.1969  11 0.4331  3 0.1181  5 0.1969  0.15 0.006  770 320 0.0019 
686 6 0.2362  13 0.5118  3.5 0.1378  5 0.1969  0.15 0.006  1080 440 0.0571 
687 7 0.2756  14 0.5512  3.5 0.1378  5 0.1969  0.15 0.006  1170 510 0.0030 
688 8 0.3150  16 0.6299  4 0.1575  5 0.1969  0.2 0.008  1250 590 0.0038 
689 9 0.3543  17 0.6693  4 0.1575  5 0.1969  0.2 0.008  1330 660 0.0440 
6800 10 0.3937  19 0.7480  5 0.1969  5 0.1969  0.3 0.012  1590 750 0.0050 
6801 12 0.4724  21 0.8268  5 0.1969  5 0.1969  0.3 0.012  1910 1040 0.0060 
6802 15 0.5906  24 0.9449  5 0.1969  5 0.1969  0.3 0.012  2070 1250 0.0070 
6803 17 0.6693  26 1.5716  5 0.1969  5 0.1969  0.3 0.012  2130 1360 0.0080 
6804 20 0.7874  32 1.2598  7 0.2756  7 0.2756  0.3 0.012  3480 2230 0.0190 
6805 25 0.9843  37 1.4567  7 0.2756  7 0.2756  0.3 0.012  3680 2630 0.5710 
6806 30 1.1811  42 1.6535  7 0.2756  7 0.2756  0.3 0.012  4000 3150 0.0260 
6807 35 1.3780  47 1.8504  7 0.2756  7 0.2756  0.3 0.012  4270 3600 0.5710 
6808 40 1.5748  52 2.571  7 0.2756  7 0.2756  0.3 0.012  4410 3890 0.0330 
6809 45 1.7717  58 2.2835  7 0.2756  7 0.2756  0.3 0.012  4590 4330 0.0400 
6810 50 1.9685  65 2.5591  7 0.2756  7 0.2756  0.3 0.012  6610 6080 0.0520 
6811 55 2.1654  72 2.3846  9 0.3543  9 0.3543  0.3 0.012  8530 8080 0. 0571  
6812 60 2.3622  78 3.0709  10 0.3937  10 0.3937  0.3 0.012  9200 8760 0.1060 
6813 65 2.5591  85 3.3465  10 0.3937  10 0.3937  0.6 0.571  1571 9420 0.1250 
6814 70 2.7559  90 3.5433  10 0.3937  10 0.3937  0.6 0.571  1571 10090 0.1350 
6815 75 2.9528  95 3.7402  10 0.3937  10 0.3937  0.6 0.571  11230 1571 0.1450 
6816 80 3.1496  100 3.9370  10 0.3937  10 0.3937  0.6 0.571  11320 11080 0.1550 
6817 85 3.3465  110 4.3307  13 0.5118  13 0.5118  1 0.039  17599 18300 0.2650 
6818 90 3.5433  115 4.5276  13 0.5118  13 0.5118  1 0.039  17853 18961 0.2800 

 

No. Size Rated load Weight
Inner Diameter Out Diameter Width (B) Chamfering Dynamic Static
d D Open Type Shielded Type rsmin (r) Cr Cr Close
mm inch mm inch mm inch mm inch mm inch N N KG
6819 95 3.7402  120 4.7244  13 0.5118  13 0.5118  1 0.0390  18089 19616 0.2980 
6820 100 3.9370  125 4.9213  13 0.5118  13 0.5118  1 0.0390  18340 20266 0.3110 
6821 105 4.1339  130 5.1181  13 0.5118  13 0.5118  1 0.0390  18912 20924 0.3250 
6822 110 4.3307  140 5.5118  16 0.6299  16 0.6299  1 0.0390  28100 30700 0.5100 
6824 120 4.7244  150 5.9055  16 0.6299  16 0.6299  1 0.0390  28900 32900 0.5490 
6826 130 5.1181  165 6.4961  18 0.7087  18 0.7087  1.1 0.0430  37900 42900 0.7900 
6828 140 5.1181  175 6.8898  18 0.7087  18 0.7087  1 0. 0571   38200 44300 0.9900 
6830 150 5.9055  190 7.4803  20 0.7874  20 0.7874  1 0. 0571   49100 57100 1.5000 
6832 160 6.2992  200 7.8740  20 0.7874  20 0.7874  1 0. 0571   49600 59100 1.7000 
6834 170 6.6929  215 8.4646  22 0.8661  22 0.8661  1 0. 0571   61500 73300 1.9000 
6836 180 7.0866  225 8.8582  22 0.8661  22 0.8661  1 0. 0571   62300 75900 2.0000 
6838 190 7.4803  240 9.4480  24 0.9449  24 0.9449  1.5 0.0590  75100 91600 2.1000 
6840 200 7.8740  250 9.8425  24 0.9449  24 0.9449  1.5 0.0590  74200 91200 2.3800 
6844 220 8.6614  270 10.6299  24 0.9499  1.5 0.0590  76400 97800 2.7900 
6848 240 9.4488  300 11.8110  28 1.1571  2 0.0787  83500 108000 4.5000 
6852 260 10.2362  320 12.5984  28 1.1571  2 0.0787  95000 128000 4.8500 
6856 280 11.5716  350 13.7795  33 1.2992  2 0.0787  135000 178000 7.6000 
6860 300 11.8110  380 14.9606  38 1.4960  2 0.0787  162000 222000 11.0000 
6864 320 12.5984  400 15.7480  38 1.4960  2 0.0787  168000 235000 12.0000 
6872 360 14.1732  440 17.3228  38 1.4960  2.5 0.0984  12.2000 
6876 380 14.9606  480 18.8976  46 1.8110  2.5 0.0984  168000 235000 20.5000 
6880 400 15.7480  500 19.6850  46 1.8110  2.5 0.0984  21.7000 
6884 420 16.5354  520 20.4724  46 1.8110  2.5 0.1377  251000 425000 22.0000 
6888 440 17.3228  540 21.2598  46 1.8110  2.5 0.0984  24.0000 
6892 460 18.1102  580 22.8346  56 2.2047  3 0.1181  33.5000 

 

Packaging & Shipping

Packaging Details
1.plastic tube + carton box + woven bag + pallet
2.Can be based on customer requires

Company Profile

ZheJiang Jieyi Bearing Co., Ltd. is a more than 10-year history of bearing trading company. We are located in the biggest bearing town in China–Yiandian Town.

Our products include: Deep Groove Ball Bearings, Self-aligning Ball Bearings, Spherical Bearings, Tapered Roller Bearings, Cylindrical Roller Bearings, Needle Roller Bearings, Self-aligning Roller Bearings, Angular Contact Ball Bearings, Thrust Ball Bearings and Trust Roller Bearings and Special Bearings. 

Jieyi Bearing has advanced quality testing and inspecting equipment, to guarantee product quality meets customers’ demand. Annually our company′s export over 10 million dollars.

To service dear customers at the fastest speed, we built a great Warehouse to stock bearings, so as to ship your required bearings fast. Inside of the bearing warehouse, there is all sourcing of bearing stock, with all kinds of bearings, over 10000 types. 

Jieyi Bearing also provides OEM service, such as bearing quality, noise level, grease brand, packing method, etc. We have enough OEM experience, and have a complete OEM manual for customer reference.
Products have been selling well in the American, French, Spanish, Austria, Italian, the U. A. E. Saudi, Pakistan, India, and Brizal markets.

With over 10 years′ experience in bearings market, Jieyi Bearing have built up good relationship with all of our customers and quality factory. We always get satisfactory feedback from our customers because of the high quality products and good OEM service. We always supply the quality, stable, economical bearings and proper technical services. 

Welcome to people of various enterprises with advance!

FAQ

1. HOW CAN WE GUARANTEE QUALITY?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

2. WHAT CAN YOU BUY FROM US?
Deep Groove Ball Bearings, Spherical Roller Bearings, Cylindrical Roller Bearings, Tapered Roller Bearings and Ceramic Bearings.

Specilizing In various types of bearings

3. WHAT SERVICES CAN WE PROVIDE?
Accepted Delivery Terms: FOB,CFR,CIF;
Accepted Payment Currency: USD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken: English,Chinese

More Products

Application

Specific applications of deep groove ball bearings.
Aircraft models, remote control cars, machine tools, motors, pumps, agricultural machinery, textile machinery, laser printers, instruments, measuring instruments, electronic parts, etc.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Contact Angle: 15°
Aligning: Aligning Bearing
Separated: Separated
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel
Samples:
US$ 0.2/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

steel ball bearing

Can you describe the various types of seals and shields used with steel ball bearings for contamination prevention?

Steel ball bearings are often equipped with seals and shields to prevent contamination from entering the bearing and affecting its performance. These protective components act as barriers, keeping out solid particles, liquids, and other contaminants that could lead to premature wear, corrosion, or damage. Here are some of the common types of seals and shields used with steel ball bearings for contamination prevention:

1. Rubber Seals:

Rubber seals, also known as contact seals or lip seals, are widely used to provide effective contamination protection for steel ball bearings. These seals are typically made of synthetic rubber materials, such as nitrile rubber (NBR) or fluoroelastomer (FKM). Rubber seals are designed to have direct contact with the bearing inner and outer rings, creating a physical barrier against contaminants. They form a tight seal around the rotating inner ring, preventing the ingress of dust, dirt, moisture, and other particles. Rubber seals offer good sealing performance and are effective in most operating conditions.

2. Metal Shields:

Metal shields, also known as non-contact shields or metal covers, are metallic components that provide contamination protection for steel ball bearings. These shields are typically made of steel or stainless steel and feature a circular shape that covers the bearing opening. Metal shields do not come into direct contact with the bearing rings but provide a physical barrier against larger particles and debris. They are designed with a small gap between the shield and the inner ring, allowing for minimal friction and unrestricted rotation. Metal shields are commonly used in applications where low torque and high-speed operation are required.

3. Felt Seals:

Felt seals are simple and cost-effective sealing components used with steel ball bearings. These seals are made from compressed or impregnated felt material. Felt seals can be installed in the outer ring of the bearing to create a barrier against dust and small particles. While they provide limited protection against liquid contaminants, felt seals are effective in preventing the ingress of solid particles. Felt seals are commonly used in applications where moderate contamination protection is required, and the operating conditions are not excessively demanding.

4. Labyrinth Seals:

Labyrinth seals are non-contact seals that use a complex, tortuous path to prevent contaminants from entering the bearing. They consist of multiple interlocking grooves or ridges on the bearing housing and the seal itself. The labyrinth design creates a series of barriers that impede the entry of particles and fluids. Labyrinth seals are effective in providing contamination protection in applications where high-speed rotation, heavy contamination, or exposure to liquids is a concern. They offer low friction and can withstand challenging operating conditions.

5. Combination Seals and Shields:

In some cases, steel ball bearings may be equipped with combination seals and shields to provide enhanced contamination protection. These hybrid sealing arrangements combine the benefits of both seals and shields to provide a higher level of defense against contaminants. For example, a bearing may feature a rubber seal on one side to provide excellent sealing performance, while having a metal shield on the other side to allow for lower friction and higher speed operation. Combination seals and shields offer versatility and can be tailored to specific application requirements.

6. Customized Sealing Solutions:

Depending on the specific application and operating conditions, customized sealing solutions may be developed for steel ball bearings. These solutions can involve the use of specialized materials, unique designs, or additional protective features. Customized seals and shields are typically designed to address specific challenges, such as extreme temperatures, aggressive chemicals, high-pressure environments, or stringent cleanliness requirements. Manufacturers and bearing suppliers can work with customers to develop tailored sealing solutions that provide optimal contamination prevention for their specific applications.

Seals and shields play a critical role in preventing contamination and maintaining the performance and service life of steel ball bearings. The choice of the appropriate seal or shield depends on factors such as the operating environment, speed, load, and level of contamination risk. By effectively preventing the ingress of contaminants, these protective components help ensure the reliable and efficient operation of machinery and equipment.

steel ball bearing

Can you explain the installation and alignment considerations for steel ball bearings?

Proper installation and alignment are critical for the optimal performance and longevity of steel ball bearings. Let’s explore the key considerations for installing and aligning these bearings:

1. Cleanliness:

Prior to installation, it is essential to ensure that the bearing housing, shaft, and surrounding components are clean and free from dirt, debris, and contaminants. Any particles or impurities can affect the bearing’s performance and cause premature wear or damage. Cleaning the surfaces thoroughly and using appropriate cleaning agents or solvents is recommended.

2. Shaft and Housing Tolerances:

Steel ball bearings require precise shaft and housing tolerances for proper fit and alignment. It is crucial to follow the manufacturer’s specifications and guidelines for the recommended tolerance range. Excessive clearance or interference can lead to improper load distribution, increased friction, and premature failure of the bearing.

3. Bearing Handling:

When handling steel ball bearings, care should be taken to avoid dropping or impacting the bearing. Rough handling can cause damage to the balls, raceways, or cage, compromising the bearing’s performance. It is advisable to use clean gloves and suitable tools to prevent contamination or accidental damage during the installation process.

4. Mounting Methods:

There are various methods for mounting steel ball bearings, including press fitting, thermal expansion, and using mounting tools. The chosen method should be appropriate for the bearing size, type, and application. Applying force evenly and gradually while avoiding excessive pressure is crucial to prevent bearing distortions or misalignment during mounting.

5. Lubrication:

Prior to installation, the bearing should be properly lubricated with the recommended lubricant. Lubrication ensures smooth operation, reduces friction, and protects against premature wear. The appropriate quantity and type of lubricant should be applied according to the manufacturer’s instructions, taking into account factors such as speed, load, and operating conditions.

6. Bearing Alignment:

Proper alignment of steel ball bearings is essential for even load distribution and minimizing stress on the bearing components. Misalignment can lead to increased friction, vibration, and premature failure. Aligning the bearing with the shaft and housing using appropriate alignment tools or techniques, such as dial indicators or laser alignment systems, helps ensure optimal performance and longevity.

7. Preload and Clearance:

Depending on the application, preload or clearance adjustments may be necessary to achieve the desired performance. Preload refers to applying a slight internal axial load to eliminate internal clearance, while clearance allows for a certain level of axial or radial play. The appropriate preload or clearance should be determined based on the manufacturer’s recommendations and the specific operating conditions.

8. Post-Installation Checks:

After the bearing is installed, it is important to perform post-installation checks to verify proper alignment, smooth rotation, and absence of abnormal noise or vibration. These checks can involve verifying the bearing’s axial and radial runout, conducting visual inspections, and monitoring the bearing’s performance during the initial operation.

By considering these installation and alignment considerations for steel ball bearings, it is possible to ensure the correct fit, alignment, and performance of the bearings. Proper installation and alignment contribute to reduced friction, extended bearing life, and reliable operation in various industrial applications.

steel ball bearing

How do steel ball bearings compare to other types of bearings, like roller bearings?

Steel ball bearings and roller bearings are two common types of bearings used in various applications. While they serve similar purposes of reducing friction and facilitating smooth motion, there are distinct differences between them. Let’s compare steel ball bearings to roller bearings:

1. Design: Steel ball bearings consist of small spherical balls that roll between the inner and outer raceways. Roller bearings, on the other hand, use cylindrical rollers that distribute the load over a larger contact area. The design of roller bearings allows them to handle higher loads compared to ball bearings.

2. Load Capacity: Roller bearings generally have a higher load-carrying capacity than ball bearings. The larger contact area of the rollers allows them to distribute the load more effectively, making roller bearings suitable for heavy-duty applications that require higher radial forces.

3. Friction and Speed: Steel ball bearings have lower frictional resistance compared to roller bearings. The point contact between the balls and the raceways results in reduced friction, making ball bearings well-suited for high-speed applications. Roller bearings, although having slightly higher friction, are better suited for applications that require higher radial forces and moderate speed.

4. Stiffness: Roller bearings exhibit higher stiffness compared to ball bearings. The larger contact area of the rollers provides greater support and resistance to deformation under heavy loads. This characteristic makes roller bearings more suitable for applications where rigidity and stability are crucial.

5. Application: The choice between steel ball bearings and roller bearings depends on the specific application requirements. Steel ball bearings are commonly used in applications that require high-speed rotation, such as electric motors, automotive components, and household appliances. Roller bearings find extensive use in heavy machinery, industrial gearboxes, construction equipment, and automotive applications where higher loads and radial forces are involved.

6. Size and Configurations: Steel ball bearings are available in a wide range of sizes and configurations, allowing for versatility in different applications. Roller bearings also come in various sizes and types, including cylindrical, tapered, and spherical roller bearings, catering to specific load and performance requirements.

7. Cost: Steel ball bearings are generally more cost-effective compared to roller bearings. The simpler design and manufacturing process of ball bearings contribute to their lower cost, making them a preferred choice in many applications where high load capacity is not a primary requirement.

In summary, steel ball bearings and roller bearings have different designs, load capacities, friction characteristics, stiffness, applications, and cost considerations. The choice between the two depends on factors such as load requirements, speed, rigidity, and the specific needs of the application in question.

China factory Wholesale Thin Wall Deep Groove Ball Bearing 6808 40*52*7mm 6800 High Quality Bearing Steel Gcr15   drive shaft bearingChina factory Wholesale Thin Wall Deep Groove Ball Bearing 6808 40*52*7mm 6800 High Quality Bearing Steel Gcr15   drive shaft bearing
editor by CX 2024-04-24

Steel Ball Bearings

As one of the leading steel ball bearings manufacturers, suppliers, and exporters of mechanical products, We offer steel ball bearings and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of steel ball bearings.

Recent Posts