Product Description
Product Description
Wheel hub bearings
The DAC type auto front wheel bearing is a double row angular contact ball bearing incorporating an integral outer ring and two separable inner rings; which is available either with seals or without seals. The auto wheel hub bearings can bear beavier axial and radial load.it is no need to adjust the inner clearance because it is already preserved in making.It was filled with Iubricating grease in high quality in the inner bearing,which could make the assemblage and usage easily.The range of the diameter of the inner ring is from 20 to 80mm and that of the outer ring is from 40 to 120mm.Now there are more than 300 kinds of this bearings.
Features and Benefits:
1. Low friction and running temperatures, low noise, and vibration
2. High running speeds
3. High quality and performance capabilities for your application
4. Accommodate radial loads and axial loads in both directions
5. Available with a variety of greases for most conditions, including food quality grease, high-temperature grease, and Solid Oil
6. Increased reliability and provide long bearing and lubricant service life
| Item No. | Dimensions | |||
| d | D | B | C | |
| DAC25525716 | 25 | 52 | 20.6 | 20.6 |
| DAC25520037 | 25 | 52 | 37 | 37 |
| DAC25550043 | 25 | 55 | 43 | 43 |
| DAC25560032 | 25 | 56 | 32 | 32 |
| DAC27600050 | 27 | 60 | 50 | 50 |
| DAC28610042 | 28 | 61 | 42 | 42 |
| DAC30600037 | 30 | 60 | 37 | 37 |
| DAC306500264 | 30 | 65 | 26.4 | 26.4 |
| DAC30650571 | 30 | 65 | 21 | 21 |
| DAC34620037 | 34 | 62 | 37 | 37 |
| DAC34640037 | 34 | 64 | 37 | 37 |
| DAC34660037 | 34 | 66 | 37 | 37 |
| DAC35640037 | 35 | 64 | 37 | 37 |
| DAC35650035 | 35 | 65 | 35 | 35 |
| DAC35660032 | 35 | 66 | 32 | 32 |
| DAC35660037 | 35 | 66 | 37 | 37 |
| DAC35680037 | 35 | 68 | 37 | 37 |
| DAC35725718 | 35 | 72.02 | 28 | 28 |
| DAC3572571 | 35 | 72.04 | 33 | 33 |
| DAC36680033 | 36 | 68 | 33 | 33 |
| DAC3672571 | 36 | 72.05 | 34 | 34 |
| DAC37720037 | 37 | 72 | 37 | 37 |
| DAC3772571 | 37 | 72.04 | 37 | 37 |
| DAC37740045 | 37 | 74 | 45 | 45 |
| DAC38720040 | 38 | 72 | 40 | 40 |
| DAC38725716/33 | 37.99 | 72.02 | 36 | 33 |
| DAC38745716/33 | 37.99 | 74.02 | 36 | 33 |
| DAC39680637 | 39 | 68.06 | 37 | 37 |
| DAC39720037 | 39 | 72 | 37 | 37 |
| DAC39720637 | 39 | 72.06 | 37 | 37 |
| DAC39740039 | 39 | 74 | 39 | 39 |
| Bearing Model | dXDXB ( mm ) | Weight /KG |
| DAC27600050 | 27*60*50 | 0.56 |
| DAC28580042 | 28*58*42 | 0.45 |
| DAC28610042 | 28*61*42 | 0.53 |
| DAC29530037 | 29*53*37 | 0.34 |
| DAC3050571 | 30*50*20 | 0.13 |
| DAC30540571 | 30*54*24 | 0.36 |
| DAC3 0571 030/25 | 30*55*30 | 0.39 |
| DAC3 0571 032 | 30*55*32 | 0.27 |
| DAC3 0571 042 | 30*58*42 | 0.48 |
| DAC30600037 | 30*60*37 | 0.42 |
| DAC30600337 | 30*60.3*37 | 0.42 |
| DAC3060037/34 | 30*60*37 | 0.36 |
| DAC30620032 | 30*62*32 | 0.36 |
| DAC30620037 | 30*62*37 | 0.42 |
| DAC30620038 | 30*62*38 | 0.43 |
| DAC30620044 | 30*62*44 | 0.44 |
| DAC30630042 | 30*63*42 | 0.47 |
| DAC30640037 | 30*64*37 | 0.47 |
| DAC30640042 | 30*64*42 | 0.49 |
| DAC30650571 | 30*65*21 | 0.27 |
| DAC306500264 | 30*65*26.4 | 0.36 |
| DAC30680045 | 30*68*45 | 0.52 |
| DAC307200302 | 30*72*30.2 | 0.31 |
| DAC30720037 | 30*72*37 | 0.8 |
| DAC32720045 | 32*72*45 | 0.6 |
| DAC32720034 | 32*72*34 | 0.6 |
| DAC34620037 | 34*62*37 | 0.41 |
| DAC34640037 | 34*64*37 | 0.43 |
| DAC34660037 | 34*66*37 | 0.41 |
| DAC34670037 | 34*67*37 | 0.44 |
| DAC35640037 | 35*64*37 | 0.41 |
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.
SAMPLES
1. Samples quantity: 1-10 PCS are available.
2. Free samples: It depends on the Model No., material and quantity. Some of the bearings samples need client to pay samples charge and shipping cost.
3. It’s better to start your order with Trade Assurance to get full protection for your samples order.
CUSTOMIZED
The customized LOGO or drawing is acceptable for us.
MOQ
1. MOQ: 10 PCS standard bearings.
2. MOQ: 1000 PCS customized your brand bearings.
OEM POLICY
1. We can printing your brand (logo, artwork)on the shield or laser engraving your brand on the shield.
2. We can custom your packaging according to your design
3. All copyright own by clients and we promised don’t disclose any info.
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.
FAQ
SAMPLES
1. Samples quantity: 1-10 PCS are available.
2. Free samples: It depends on the Model No., material and quantity. Some of the bearings samples need client to pay samples charge and shipping cost.
3. It’s better to start your order with Trade Assurance to get full protection for your samples order.
CUSTOMIZED
The customized LOGO or drawing is acceptable for us.
MOQ
1. MOQ: 10 PCS standard bearings.
2. MOQ: 1000 PCS customized your brand bearings.
OEM POLICY
1. We can printing your brand (logo, artwork)on the shield or laser engraving your brand on the shield.
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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| Customized: | Customized |
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| Certification: | ISO |
| Standard Parts: | Yes |
| Customization: |
Available
| Customized Request |
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.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
| 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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Signs of Wear or Damage in Linear Bearings and Maintenance
Identifying signs of wear or damage in linear bearings is essential for maintaining their performance and preventing costly failures. Here are common signs of wear and damage and how to address them:
- 1. Increased Friction:
If you notice increased resistance during linear motion, it could indicate that the bearing components are wearing out. This can lead to reduced efficiency and accuracy.
- Solution: Regular Lubrication:
Ensure proper lubrication of the bearings to minimize friction and prevent premature wear. Follow manufacturer recommendations for lubrication intervals and types.
- 2. Uneven Movement:
If the linear motion becomes uneven, jerky, or experiences sudden stops, it may be due to damaged bearing components.
- Solution: Inspection and Replacement:
Inspect the bearings and associated components for any signs of damage, such as dents or cracks. Replace any damaged parts to restore smooth motion.
- 3. Abnormal Noise:
Unusual noises during linear motion, such as grinding or clicking sounds, can indicate friction and wear within the bearings.
- Solution: Lubrication and Inspection:
Lubricate the bearings as recommended and inspect for any foreign particles or debris that might be causing the noise. Clean and replace components if necessary.
- 4. Increased Play or Clearance:
If there is noticeable play or excessive clearance in the linear system, it can affect precision and lead to inaccuracies.
- Solution: Adjustment or Replacement:
Check for loose bolts, misalignment, or worn components causing the play. Make necessary adjustments or replace worn parts to restore proper fit and function.
- 5. Reduced Performance:
If your linear system is no longer achieving the desired accuracy or performance, it could be due to worn bearings.
- Solution: Maintenance and Replacement:
Regularly perform maintenance tasks, such as cleaning, lubrication, and inspection. If performance does not improve, consider replacing the bearings with new ones.
- 6. Visible Damage:
Any visible signs of physical damage, such as deformation, corrosion, or cracks, require immediate attention.
- Solution: Replacement:
If the damage is severe, replace the damaged bearings promptly to avoid further issues.
Regular maintenance practices, including proper lubrication, cleaning, and inspection, are crucial for preventing wear and damage in linear bearings. Addressing any signs of wear early can extend the lifespan of the bearings and ensure consistent performance in various applications.
Advancements in Linear Bearing Technology
Recent years have witnessed significant advancements in linear bearing technology, leading to improved performance and expanded applications. Some notable advancements include:
- Rolling Element Innovations:
Manufacturers are introducing new types of rolling elements, such as ceramic balls and specialized coatings, to enhance load capacity, reduce friction, and extend the lifespan of linear bearings.
- Lubrication Solutions:
Advanced lubrication techniques, including self-lubricating materials and greases with extended lifetimes, are being developed to optimize the performance of linear bearings while reducing maintenance needs.
- Smart and Sensor-Integrated Bearings:
Linear bearings with built-in sensors provide real-time data on temperature, vibration, and wear. This enables predictive maintenance, early fault detection, and optimization of bearing performance.
- Improved Corrosion Resistance:
New materials and coatings are being employed to enhance the corrosion resistance of linear bearings. This is particularly beneficial in environments where exposure to moisture and corrosive substances is a concern.
- Reduced Friction and Energy Consumption:
Advanced engineering and design techniques are leading to lower friction coefficients and reduced energy consumption in linear bearings. This not only improves efficiency but also contributes to sustainability efforts.
- High-Speed Capabilities:
Linear bearings capable of operating at higher speeds are being developed to meet the demands of applications requiring rapid and precise movements, such as in the semiconductor and electronics industries.
- Enhanced Sealing and Contaminant Management:
New sealing technologies are being employed to provide better protection against contaminants and debris. This is critical for applications where cleanliness is paramount.
- Integration with Industry 4.0:
Linear bearings are increasingly designed to be compatible with Industry 4.0 principles, allowing them to be integrated into digital manufacturing and automation systems for improved overall efficiency.
- Material Advancements:
Novel materials with improved mechanical properties, wear resistance, and temperature tolerance are being used in the production of linear bearings, expanding their operating capabilities.
These recent advancements in linear bearing technology are enabling industries to achieve higher levels of precision, efficiency, reliability, and predictive maintenance, making linear bearings an essential component of modern machinery and systems.
Common Applications and Industries for Linear Bearings
Linear bearings find widespread use in a variety of applications and industries due to their ability to provide controlled linear motion. Some common applications and industries where linear bearings are essential components include:
- Industrial Automation:
Linear bearings are used in automated machinery and equipment to enable precise and repeatable movement of components. They play a critical role in assembly lines, material handling systems, and robotics.
- CNC Machinery:
In computer numerical control (CNC) machines, linear bearings facilitate accurate movement of the cutting tool or workpiece. They contribute to the precision and quality of machining operations.
- Medical Devices:
Linear bearings are crucial in medical equipment such as MRI machines, CT scanners, and robotic surgical systems. Their precision and smooth motion are vital for accurate medical procedures.
- Packaging Machinery:
In packaging and labeling machines, linear bearings ensure precise movement of containers, products, and labeling mechanisms. This results in consistent and reliable packaging processes.
- Printing Industry:
Linear bearings are used in printing presses to ensure precise movement of print heads, paper feed mechanisms, and other critical components. This helps achieve accurate printing results.
- Textile Machinery:
In textile manufacturing, linear bearings contribute to the smooth operation of spinning machines, looms, and fabric handling systems. They help maintain proper tension and alignment of materials.
- Aerospace and Defense:
Linear bearings are utilized in aerospace applications such as aircraft actuators, landing gear systems, and satellite mechanisms. They withstand harsh conditions and provide reliable motion control.
- Material Handling:
In conveyor systems and material handling equipment, linear bearings facilitate the movement of goods along production lines, warehouses, and distribution centers.
- Automotive Industry:
Linear bearings are used in automotive manufacturing for tasks like seat adjustments, sunroof operation, and door mechanisms. Their precision enhances passenger comfort.
- Scientific Research:
In laboratory equipment and scientific instruments, linear bearings contribute to accurate positioning of samples, sensors, and analytical components.
These are just a few examples of the diverse applications and industries where linear bearings are essential. Their ability to provide controlled and reliable linear motion makes them indispensable in achieving precision, efficiency, and performance across various sectors.
editor by CX 2024-04-25