Product Description
PRODUCT PICTURES
OUR SERVICES
We can provide manufacturing capabilities and services of regular bearings for you, or customized non-standard bearings as you required.
 BEARING:
 — Dimensions
 — Material
 — Tolerance standard
APPEARANCE:
 — Logo (Laser Marking)
 — Package Design
40+ YEARS EXPERIENCEÂ
CONTINUOUS AND STABLE DELIVERY OF PRODUCTS.
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.
OWN HEAT TREATMENTÂ
CONTROALLABLE COST AND QUALITY.
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.Â
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.
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OUTSTXIHU (WEST LAKE) DIS. QUALITY
LOW NOISE, LOW FRICTION AND LONG LIFE.
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 according to the testing result of roughness, roundness, hardness, vibration noise, vibration velocity.
PACKING
PACKAGING THAT HELPS SELL.
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 palletÂ
MODERN WELL-ORGANIZED WAREHOUSE
  · Constant temperature (20°C) and humidity (RH 52%) warehouse
  · Hundreds of models on hand, short delivery time.
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HONOR & SYSTEM CERTIFICATES
EXHIBITION
SAMPLES POLICYÂ
 FREE SAMPLES AND 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.
TRANSPORTATION
FASTEST DELIVERY TO CUSTOMERS
CUSTOMERS FEEDBACK
PAYMENT TERMSÂ
To facilitate your payment, we offer a variety of options!Â
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FAQ
1, About the lead time.
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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.Â
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Even just ONE piece of bearing is ok for us.
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3, If you don’t know which model is the right choice…
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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.
OPTIONS OF SPECIFICATION AND STHangZhouRD
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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 |
PRODUCT PARAMETERS
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.
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Designation | Boundary Dimension (mm) | Limiting Speed (rpm) | Load Rating (Kn) | Weight | ||||
Designation | Inner Diameter (d) |
Outside Diameter (D) |
Width (B) |
Grease Lubrication | Oil Lubrication | Dynamic Load (cr) |
Static Load (cor) |
Weight (kg) |
61802 | 15 | 24 | 5 | 22000 | 30000 | 2.1 | 1.3 | 0.005 |
61803 | 17 | 25 | 5 | 20000 | 28000 | 2.2 | 1.5 | 0.007 |
61804 | 20 | 32 | 7 | 18000 | 24000 | 3.5 | 2.2 | 0.015 |
61805 | 25 | 37 | 7 | 16000 | 20000 | 4.3 | 2.9 | 0.017 |
61806 | 30 | 42 | 7 | 13000 | 17000 | 4.7 | 3.6 | 0.019 |
61807 | 35 | 47 | 7 | 11000 | 15000 | 4.9 | 4.0 | 0.571 |
61808 | 40 | 52 | 7 | 10000 | 13000 | 5.1 | 4.4 | 0.026 |
61809 | 45 | 58 | 7 | 9000 | 12000 | 6.4 | 5.6 | 0.03 |
61810 | 50 | 65 | 7 | 8500 | 10000 | 6.6 | 6.1 | 0.043 |
61811 | 55 | 72 | 9 | 8000 | 9500 | 9.1 | 8.4 | 0.07 |
61812 | 60 | 78 | 10 | 7000 | 8500 | 9.1 | 8.7 | 0.093 |
61813 | 65 | 85 | 10 | 6700 | 8000 | 11.9 | 11.5 | 0.13 |
61814 | 70 | 90 | 10 | 6300 | 7500 | 12.1 | 11.9 | 0.138 |
61815 | 75 | 95 | 10 | 6000 | 7000 | 12.7 | 14.3 | 0.15 |
61816 | 80 | 100 | 10 | 5600 | 6700 | 13 | 15 | 0.15 |
61817 | 85 | 110 | 13 | 5500 | 6500 | 18.5 | 19.5 | 0.27 |
61818 | 90 | 115 | 13 | 5100 | 6300 | 19 | 20.1 | 0.28 |
61819 | 95 | 120 | 13 | 5000 | 6000 | 19.3 | 20.4 | 0.3 |
61820 | 100 | 125 | 13 | 1679 | 1960 | 45.6 | 62.6 | 0.31 |
61821 | 105 | 130 | 13 | 1650 | 1900 | 49.5 | 65.3 | 0.32 |
61822 | 110 | 140 | 16 | 1596 | 1830 | 50.6 | 73.6 | 0.6 |
61824 | 120 | 150 | 16 | 1560 | 1780 | 58.7 | 76 | 0.65 |
61826 | 130 | 165 | 18 | 1500 | 1720 | 60.3 | 79.2 | 0.93 |
61828 | 140 | 175 | 18 | 1474 | 1688 | 65.5 | 81 | 0.99 |
61830 | 150 | 190 | 20 | 1446 | 1653 | 68.9 | 85 | 1.5 |
61832 | 160 | 200 | 20 | 1410 | 1648 | 70.4 | 88.2 | 1.45 |
61834 | 170 | 215 | 22 | 1395 | 1624 | 74.8 | 90.8 | 1.9 |
61836 | 180 | 225 | 24 | 1364 | 1613 | 78.4 | 99.4 | 2 |
61838 | 190 | 240 | 24 | 1343 | 1598 | 109.5 | 140.1 | 2.6 |
61840 | 200 | 250 | 24 | 1310 | 1590 | 114.4 | 141.1 | 2.38 |
61844 | 220 | 270 | 24 | 1277 | 1568 | 146.7 | 146.5 | 3 |
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Material Option 2: | Stainless Steel |
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MOQ: | One Pallet |
Seals Options: | Z / 2z, Rz / 2rz, RS / 2RS, Rsz / Rzz, Zn / Znr / |
Samples: |
US$ 0/Piece
1 Piece(Min.Order) | Order Sample |
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Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: |
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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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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:
- Correct Lubricant Selection:
- Proper Installation:
- Regular Inspections:
- Effective Sealing:
- Appropriate Handling and Storage:
- Monitoring Operating Conditions:
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.
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.
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 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.
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.
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.
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.
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.
How do temperature variations and environmental conditions impact the performance of deep groove ball bearings?
Temperature variations and environmental conditions can have a significant impact on the performance of deep groove ball bearings. These factors can affect the bearing’s lubrication, material properties, dimensional stability, and overall operating characteristics. Here’s a detailed explanation of how temperature variations and environmental conditions impact the performance of deep groove ball bearings:
- Lubrication:
- Material Properties:
- Dimensional Stability:
- Operating Characteristics:
- Environmental Effects:
Temperature variations can influence the viscosity and lubricating properties of the bearing grease or oil. High temperatures can cause lubricants to thin out, reducing their ability to form a protective film between the rolling elements and raceways. This can lead to increased friction, wear, and heat generation, potentially resulting in premature bearing failure. Conversely, extremely low temperatures can cause lubricants to thicken, impeding their flow and impairing the bearing’s ability to maintain proper lubrication. It is crucial to select lubricants suitable for the expected temperature range to ensure optimal lubrication and minimize the negative effects of temperature variations on bearing performance.
Temperature variations can affect the material properties of the bearing components. High temperatures can cause thermal expansion, leading to dimensional changes in the bearing’s inner and outer rings, as well as the rolling elements. This can result in increased radial internal clearance and potential misalignment, affecting the bearing’s running accuracy and performance. Additionally, high temperatures can accelerate the aging or degradation of bearing materials, reducing their strength and fatigue resistance. Extreme cold temperatures, on the other hand, can make materials more brittle, increasing the risk of fracture or damage under load. It is important to consider the expected temperature range and select bearing materials that can withstand the anticipated thermal conditions to ensure reliable and long-lasting performance.
Temperature variations can impact the dimensional stability of deep groove ball bearings. As temperatures change, the bearing components can expand or contract, affecting the internal clearance and fit of the bearing. This can lead to changes in running accuracy, noise levels, and the ability to maintain proper alignment within the application. In applications where precise positioning or running accuracy is critical, temperature variations must be taken into account to ensure the bearing maintains the required dimensional stability and performance under varying thermal conditions.
Temperature variations can affect the overall operating characteristics of deep groove ball bearings. High temperatures can increase the operating noise and vibration levels of the bearing, potentially impacting the comfort and performance of the machinery or equipment in which the bearing is installed. Temperature-induced expansion or contraction can also affect the bearing’s ability to handle axial or radial loads, potentially altering the load distribution and causing uneven wear or excessive loading on certain areas of the bearing. Understanding the operating characteristics of the bearing in relation to temperature variations is crucial for selecting the appropriate bearing type and size for the specific application.
Environmental conditions, such as dust, moisture, chemicals, or corrosive substances, can also impact the performance of deep groove ball bearings. Dust and dirt particles can infiltrate the bearing, leading to increased friction, wear, and potential damage to the rolling elements and raceways. Moisture or corrosive substances can cause rust or corrosion, compromising the bearing’s structural integrity and lubrication properties. It is important to consider the environmental conditions in which the bearing will operate and select appropriate sealing solutions or protective coatings to mitigate the effects of contaminants or corrosive elements.
In summary, temperature variations and environmental conditions can significantly impact the performance of deep groove ball bearings. By understanding the effects of temperature on lubrication, material properties, dimensional stability, and operating characteristics, appropriate measures can be taken to ensure optimal bearing performance and longevity. Considering the expected temperature range, selecting suitable materials, providing proper lubrication, addressing dimensional changes, and protecting against environmental factors are all important considerations when using deep groove ball bearings in different operating conditions.
editor by CX 2024-04-04