Product Description
Product Description
6800 series deep groove ball bearings
product-list-1.html
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Bearing NO | (mm)Boundary Dimensions | (Kn) | (Kn) | (r/min) Limit Rotational Speed |
(Kg) Weight |
|||
d | D | B | Dynamic Load Rating Cr |
Static Load Rating Cor |
Grease Lubrication | Oil Lubrication | ||
6800 | 10 | 19 | 5 | 1.72 | 0.84 | 34000 | 40000 | 0.0053 |
6801 | 12 | 21 | 5 | 1.92 | 1.04 | 32000 | 38000 | 0.0068 |
6802 | 15 | 24 | 5 | 2.07 | 1.26 | 28000 | 34000 | 0.0075 |
6803 | 17 | 26 | 5 | 2.63 | 1.57 | 26000 | 30000 | 0.0083 |
6804 | 20 | 32 | 7 | 4.0 | 2.47 | 22000 | 26000 | 0.02 |
6805 | 25 | 37 | 7 | 4.5 | 3.15 | 18000 | 22000 | 0.571 |
6806 | 30 | 42 | 7 | 4.7 | 3.65 | 15000 | 18000 | 0.026 |
6807 | 35 | 47 | 7 | 4.9 | 4.1 | 14000 | 16000 | 0.571 |
6808 | 40 | 52 | 7 | 6.35 | 5.5 | 12000 | 14000 | 0.033 |
6809 | 45 | 58 | 7 | 6.6 | 6.15 | 11000 | 13000 | 0.041 |
6810 | 50 | 65 | 7 | 6.4 | 6.2 | 9500 | 11000 | 0.054 |
6811 | 55 | 72 | 9 | 8.8 | 8.5 | 8500 | 10000 | 0.081 |
6812 | 60 | 78 | 10 | 11.5 | 10.9 | 8000 | 9500 | 0.101 |
6813 | 65 | 85 | 10 | 11.9 | 12.1 | 7500 | 8500 | 0.12 |
6814 | 70 | 90 | 10 | 12.1 | 12.7 | 6700 | 8000 | 0.13 |
6815 | 75 | 95 | 10 | 12.5 | 13.9 | 6300 | 7500 | 0.14 |
6816 | 80 | 100 | 13 | 12.7 | 14.5 | 6000 | 7100 | 0.15 |
6817 | 85 | 110 | 13 | 18.7 | 20 | 5600 | 6700 | 0.27 |
6818 | 90 | 115 | 13 | 19.0 | 21 | 5300 | 6300 | 0.28 |
6819 | 95 | 120 | 13 | 19.3 | 22 | 5000 | 6000 | 0.29 |
6820 | 100 | 125 | 13 | 19.6 | 23 | 4800 | 5600 | 0.31 |
Note:Above-mentioned products include its modification series,such as Z,2Z,RS,and 2RS etc. |
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Detailed Photos
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Black chamfer with rubber seal
Black chamfer with white dust cover
open UG
white chamfer with yellow dust cover
ceramic ball bearing
THE USE OF THE BEARING
Some tips on use
Rolling bearing is a precise part. Therefore it should be used carefully. No matter how high performance the bearing has, it can be obtained by improper use, the followings are the points for attention to use bearings.
(1) Keep clean the bearing and its surrounding areas
It is harmful to the bearing even by tiny dust which can not be seen by human eyes. Therefore it should always keep clean the surrounding environments in order to prevent the bearing from dust corrosion.
(2) Use bearing carefully
Scar and indentation can essily be produced out of strong impact to the bearing in use and become the cause of accidents. Therefore special caution should be given to its use.
(3) Use the appropriate operating tool
Avoid using a hammer or heavy direct tap on a bearing or sleeve, must use appropriate tools such as press or heating.
(4) Be careful to the rust corrosion of the bearings
The sweat in the hands will cause rust in operating the bearings. Therefore your hands should be cleanly washed and dried before operation. You’d better wear gloves in doing the work.Â
(5) Handler should familiar with bearing
(6) Establish bearing handling criteri
·Bearing storage
.Bearing and surrounding cleaning
.Dimension of mounting parts and inspection
.Machining quality
.Mounting handing
.After mounting inspection
·Disassembly handing
·Keep maintain
·Adding lubricant
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Installation Instructions
 Bearing mounting
 Precautions for proper mounting of bearing
1) Bearing preparation
Bearing should not be unpacked until before mounting due to spray anti-corrosion oil and pack anti-corrosion paper. In addition, spray anti-corrosion oil on bearing have good lubricate function. For general purpose, just directly using bearing fill-in grease bearings, without cleaning. However, bearing for instrument or high speed rotating must be cleaned with clean filtered oil in order to remove the anti-corrosion oil. At that time, the bearings are easy to corrosion could not storage long term.
2) Inspection of shafts and housings
Cleaning shaft and housing, confirming no scratched or machine burrs, no CZPT and cutting piece in housing. Secondly comppare with drawing, the shaft and housing of dimension, form and machining quality should be inspected.
chart 1 Measure location for shaft diameter                                     chart 2 Measure location for housing bore diameter           Â
As chart 1 and chart 2 showing, divided several locations to be measure on shaft and housing bore diameters, It should be careful inspected perpendicular between shaft, housing fillet dimension and shoulder.
Before mounting bearing, it should be sprayed mechanical oil on fitting surface after check out the shaft and housing.
Bearing storage
Before leaving the factory, the bearing is sprayed proper rust-inhibiting oil and packed rust-inhibiting paper. The quality of bearing is guaranteed, if the packing is not broken.
For long-term storage, if the humidity less than 65% and the temperature about 20, it should storage on shelf which is higher 30cm than ground.
In addition, storage occasion should avoid sunshine and contact with cold wall.
Pictures about packaging
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Company Profile
Our Advantages
1. World-Class Bearing: We provide our customers with all types of indigenous bearing with world-class quality.
2. OEM or Non-Stand Bearings: Any requirement for Nonstandard bearings is Easily Fulfilled by us due to its vast knowledge and links in the industry.
3. Genuine products With Excellent Quality: The company has always proved the 100% quality products it provides with genuine intent.
4. After Sales Service and Technical Assistance: The company provides after-sales service and technical assistance as per the customer’s requirements and needs.
5. Quick Delivery: The company provides just-in-time delivery with its streamlined supply chain.Â
SAMPLES
1. Samples quantity: 1-10 PCS are available.Â
2. Free samples:Â It depends on the Model No., material and quantity. Some of the bearings samples need client to
   pay samples charge and shipping cost.Â
3. It’s better to start your order with Trade Assurance to get full protection for your samples order.Â
CUSTOMIZED
The customized LOGO or drawing is acceptable for us.Â
MOQ
1. MOQ:Â 10 PCS standard bearings.Â
2. MOQ: 1000 PCS customized your brand bearings.Â
OEM POLICY
1. We can printing your brand (logo, artwork)on the shield or laser engraving your brand on the shield.Â
2. We can custom your packaging according to your design
3. All copyright own by clients and we promised don’t disclose any info.
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Motor Parts: | Motor Bearing |
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Water Pump Parts: | Water Pump Bearing |
Air Compressor Parts: | Air Compressor Bearing |
Samples: |
US$ 50/Piece
1 Piece(Min.Order) | Order Sample black or white or as required
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Customization: |
Available
| Customized Request |
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Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What are the challenges and solutions for managing radial loads and axial loads in deep groove ball bearings?
Managing both radial loads and axial loads in deep groove ball bearings can present certain challenges. However, there are solutions available to address these challenges effectively. Here’s a detailed explanation of the challenges and solutions for managing radial loads and axial loads in deep groove ball bearings:
- Challenges:
- Increased contact pressure and localized stress on the raceways due to axial loads
- Potential ball skidding or sliding under high axial loads, leading to uneven wear
- Risk of ball and raceway deformation or brinelling under excessive axial loads
- Solutions:
- Proper Bearing Selection: Selecting deep groove ball bearings that are designed to handle both radial and axial loads is crucial. Bearings with higher axial load capacities, such as deep groove ball bearings with filling slots or angular contact ball bearings, may be suitable for applications with significant axial loads.
- Optimized Internal Clearance: The internal clearance of the bearing can be adjusted to accommodate the expected radial and axial loads. This ensures optimal load distribution and minimizes the risk of excessive stress concentrations. Manufacturers provide guidelines on the appropriate internal clearance for different load conditions.
- Bearing Preload: Preloading the bearings can help manage axial loads by applying a controlled amount of internal axial force. This ensures that the bearings maintain contact with the raceways and minimizes the risk of ball skidding or sliding. Preloading is commonly used in applications such as machine tools.
- Use of Thrust Bearings: In applications with high axial loads, incorporating thrust bearings in conjunction with deep groove ball bearings can help manage the axial component effectively. Thrust bearings are designed specifically to handle axial loads and can be used in combination with deep groove ball bearings to support both radial and axial loads.
- Design Considerations: Careful consideration of the application’s operating conditions, load magnitudes, and directions is essential. This includes analyzing the ratio of radial to axial loads, the presence of shock or impact loads, and any misalignment or angular loads that may affect bearing performance. By understanding the specific requirements, the bearing arrangement and selection can be optimized for improved load management.
Deep groove ball bearings are primarily designed to handle radial loads. When subjected to significant axial loads, they may experience increased stress and premature wear, potentially leading to bearing failure. The challenges in managing radial loads and axial loads include:
To effectively manage radial loads and axial loads in deep groove ball bearings, the following solutions can be implemented:
In summary, managing radial loads and axial loads in deep groove ball bearings requires careful consideration and appropriate solutions. Proper bearing selection, optimized internal clearance, bearing preload, the use of thrust bearings, and design considerations tailored to the application’s requirements are key steps in effectively managing both radial and axial loads. By implementing these solutions, the performance and longevity of deep groove ball bearings can be maximized, ensuring reliable operation under varying load conditions.
Can you explain the design principles of deep groove ball bearings and their functions?
Deep groove ball bearings are designed based on specific principles to ensure their optimal performance and functionality. Here’s a detailed explanation of the design principles of deep groove ball bearings and their functions:
- Internal Geometry:
- Rolling Elements:
- Cage:
- Sealing and Shielding:
- Lubrication:
- Mounting and Fitting:
The internal geometry of deep groove ball bearings is characterized by the presence of deep raceway grooves in both the inner and outer rings. These grooves enable the bearings to accommodate radial loads, axial loads, or a combination of both. The geometry of the raceway grooves is designed to distribute the load evenly along the rolling elements, minimizing stress concentrations and maximizing load-carrying capacity.
Deep groove ball bearings utilize steel balls as rolling elements. The balls are typically made of high-quality bearing steel and are precision-ground to ensure smooth and consistent rolling. The number, size, and arrangement of the balls in the bearing determine its load-carrying capacity and rotational characteristics. The rolling elements reduce friction and enable the efficient transfer of loads, allowing the bearing to operate with minimal energy losses.
A cage, also known as a retainer, is used in deep groove ball bearings to separate and guide the rolling elements. The cage holds the balls in position, ensuring proper spacing and alignment, and preventing contact between them. The main function of the cage is to maintain ball separation, reduce friction, and enable smooth rotation. Common cage materials include steel, brass, or synthetic polymers.
Deep groove ball bearings may incorporate sealing or shielding mechanisms to protect the internal components from contaminants and retain lubrication. Seals are designed to provide a barrier against dust, dirt, and moisture, while shields offer protection from larger particles. These protective features help extend the bearing’s service life, improve reliability, and maintain proper lubrication conditions.
Lubrication is essential for the smooth operation and longevity of deep groove ball bearings. Proper lubrication reduces friction, heat generation, and wear of the bearing components. The choice of lubricant and the method of lubrication depend on the application requirements and operating conditions. Common lubrication methods include grease packing, oil bath, oil mist, or centralized lubrication systems. Adequate lubrication ensures optimal performance, reduces maintenance needs, and extends the bearing’s lifespan.
Deep groove ball bearings are designed for easy mounting and fitting onto shafts or in housings. They typically have standardized dimensions and tolerances to facilitate interchangeability. Proper mounting techniques, such as using the correct fitting tools and applying appropriate axial and radial clearance, are crucial for achieving optimal bearing performance, reducing stress, and preventing premature failure.
In summary, the design principles of deep groove ball bearings encompass internal geometry with deep raceway grooves, rolling elements in the form of steel balls, cages for ball separation, sealing or shielding mechanisms for protection, lubrication systems for friction reduction, and easy mounting and fitting. These design elements work together to ensure the smooth operation, load-carrying capacity, durability, and reliability of deep groove ball bearings.
What challenges are associated with minimizing noise and vibration in deep groove ball bearings?
Minimizing noise and vibration in deep groove ball bearings can be challenging due to several factors that can contribute to these unwanted effects. While deep groove ball bearings are designed to provide smooth and quiet operation, certain challenges need to be addressed to achieve optimal noise and vibration levels. Here’s a detailed explanation of the challenges associated with minimizing noise and vibration in deep groove ball bearings:
- Internal Clearance and Preload:
- Manufacturing and Assembly Variations:
- Lubrication:
- Operating Conditions:
- Application-Specific Challenges:
The internal clearance and preload of deep groove ball bearings can significantly impact noise and vibration levels. Insufficient preload or excessive internal clearance can result in excessive ball movement, leading to increased vibration and noise generation during operation. On the other hand, excessive preload can cause additional bearing stress and potential noise issues. Achieving the proper balance between preload and internal clearance is crucial to minimize noise and vibration in deep groove ball bearings.
Manufacturing and assembly variations can introduce irregularities or imperfections in deep groove ball bearings, leading to increased noise and vibration. Variations in ball size, shape, or surface finish, as well as irregularities in raceway profiles or cage design, can contribute to uneven loading, increased friction, and vibration. Strict quality control measures and precision manufacturing techniques are essential to minimize these variations and ensure consistent performance and reduced noise levels across deep groove ball bearings.
Lubrication plays a critical role in minimizing noise and vibration in deep groove ball bearings. Insufficient or improper lubrication can result in increased friction, wear, and noise generation. Inadequate lubrication film thickness can also lead to metal-to-metal contact and increased vibration levels. Proper selection and application of suitable lubricants, taking into account factors such as speed, temperature, and load conditions, are essential to maintain optimal lubrication and mitigate noise and vibration issues.
The operating conditions in which deep groove ball bearings are used can pose challenges in minimizing noise and vibration. Factors such as high speeds, heavy loads, misalignment, or temperature variations can induce vibrations and increase noise levels. In some cases, external factors such as electrical or magnetic fields can also impact the performance of deep groove ball bearings. Understanding the specific operating conditions and selecting bearings with appropriate load and speed ratings, as well as implementing proper alignment and environmental controls, are crucial to minimizing noise and vibration.
Each application may have its unique challenges in minimizing noise and vibration in deep groove ball bearings. For example, in electric motors, the electromagnetic forces can introduce additional vibrations and noise. In such cases, careful design considerations, such as optimizing bearing selection, mounting techniques, and implementing vibration dampening measures, may be necessary to address these application-specific challenges.
In summary, minimizing noise and vibration in deep groove ball bearings requires addressing challenges related to internal clearance and preload, manufacturing and assembly variations, lubrication, operating conditions, and application-specific factors. By understanding these challenges and implementing appropriate measures such as precise manufacturing techniques, proper lubrication practices, suitable bearing selection, and application-specific considerations, it is possible to achieve reduced noise and vibration levels, resulting in smoother and quieter operation of deep groove ball bearings.
editor by CX 2024-04-25