China supplier Rowing-Machine Plastic Coated Bearing China Csk25 Linear Flat Needle Roller Bearings deep groove ball bearing

Product Description

China Machine Bearings Sch87 CSK12P-2RS Open Type Drawn Cup Needle Roller Bearings

Product Description

Needle bearings are roller bearings with cylindrical rollers that are thin and long relative to their diameter. Such rollers are called needle rollers. Despite having a small cross-section, the bearing still has a high load-bearing capacity. Needle roller bearings are equipped with thin and long rollers (roller diameter D≤5mm, L/D≥2.5, L is the length of the roller), so The radial structure is compact, and its inner diameter size and load capacity are the same as other types of bearings, and its outer diameter is the smallest, especially suitable for support structures with limited radial installation dimensions.

Depending on the application occasion, a bearing without an inner ring or a needle roller and cage assembly can be selected. At this time, the journal surface and the housing hole surface matched with the bearing are directly used as the inner and outer rolling surfaces of the bearing. In order to ensure the load capacity and running performance As with bearings with rings, the hardness, machining accuracy, and surface quality of the raceway surface of the shaft or housing hole should be similar to the raceway of the bearing ring. This kind of bearing can only bear radial load

In addition to those listed in the catalog, bearings that can be used for general engineering, such as open-type drawn cup needle roller bearings (1), closed-type drawn cup needle roller bearings
(2), needle roller bearing with inner ring
(3) and needle roller bearings without inner ring/needle roller bearings without inner ring and without a cage
(4), with cage and without cage filled with needle roller bearings

A combined needle roller bearing is a bearing unit composed of radial needle roller bearing and thrust bearing components. It has a compact structure, small size, high rotation accuracy, and can withstand a certain axial load while bearing a high radial load. And the product structure is diverse, widely adaptable, and easy to install. Combined needle roller bearings are widely used in various mechanical equipment such as machine tools, metallurgical machinery, textile machinery, and printing machinery, and can make the mechanical system design very compact and smart

Thrust bearings consist of thrust cage assemblies with needle rollers or cylindrical rollers or balls and thrust washers. Needle rollers and cylindrical rollers are held and guided by thrust cages. When used with different series of DF thrust bearing washers, many different combinations are available for bearing configurations. Due to the selection of high-precision cylindrical rollers (needle rollers) to increase the contact length, this bearing can obtain high load capacity and high rigidity in a small space. Another advantage is that if the surface of the adjacent part is suitable for the raceway surface, the gasket can be omitted, which can make the design compact. The cylindrical surfaces of the needle rollers and cylindrical rollers used in DF thrust needle roller bearings and thrust cylindrical roller bearings are Modified face to reduce edge stress and increase service life

Product Parameters

Product Name Needle Bearing 
Brand Name HOTE BEARING
Type Inch Tapered Roller Bearing/Taper Roller Bearing
Weight Standard weight
Specifications Standard size 
Material Chrome steel GCR-15
CAGE Steel Cage and Nylon Cage
Rolling body Roller

 

 

Designation Bearing Series   Dimensions Mass Load Rating Torque Rating  Limiting Speed
d (mm) D (mm) L (mm) (kg) Dynamic(kN) Static(kN) (N·m) (RPM)
CSK8        8 22 9 0.015 3.28 0.86 5 15000
CSK12   CSK12 P   6201 12 32 10 0.04 6.1 2.77 18.6 10000
CSK15   CSK15 P CSK15 PP  6202 15 35 11 0.06 7.4 3.42 34 8400
CSK17  CSK17 P CSK17 PP  6203 17 40 12 0.07 7.9 3.8 60 7350
CSK20 CSK20 P CSK20 PP  6204 20 47 14 0.11 9.4 4.46 100 6000
CSK25   CSK25 P CSK25 PP  6205 25 52 15 0.14 10.7 5.46 170 5200
CSK30   CSK30 P CSK30 PP  6206 30 62 16 0.21 11.7 6.45 276 4200
CSK35   CSK35 P CSK35 PP  6207 35 72 17 0.3 12.6 7.28 350 3600
CSK40  CSK40 P CSK40 PP   –   40 80 22 0.5 15.54 12.25 650 3000
CSK8 2RS        –   8 22 9 0.015 3.28 0.86 5 15000
CSK12 2RS CSK12P-2RS    –   12 32 14 0.05 6.1 2.77 18.6 10000
CSK15 2RS  CSK15P-2RS    –   15 35 16 0.07 7.4 3.42 34 8400
CSK17 2RS  CSK17P-2RS    –   17 40 17 0.09 7.9 3.8 60 7350
CSK20 2RS CSK20P-2RS    –   20 47 19 0.145 9.4 4.46 100 6000
CSK25 2RS CSK25P-2RS    –   25 52 20 0.175 10.7 5.46 170 5200
CSK30 2RS  CSK30P-2RS    –   30 62 21 0.27 11.7 6.45 276 4200
CSK35 2RS  CSK35P-2RS    –   35 72 22 0.4 12.6 7.28 350 3600
CSK40 2RS CSK40P-2RS    –   40 80 27 0.6 15.54 12.25 650 3000

Detailed Photos

 

FAQ

Q1:What is your Before-sales Service?
1>. Offer to bear related consultation about technology and application;

2>.Help customers with bearing choice, clearance configuration, product” life, and reliability analysis;

3>. Offer highly cost-effective and complete solution program according to site conditions;

4>. Offer localized program on introduced equipment to save running cost

Q2: What is your After-sales Service?
1>. Offer training about bearing installation and maintenance;

2>.Help customers with trouble diagnosis and failure analysis;

3>. Visit customers regularly and feedback on their rational suggestions and requirements to the company.

Q3: How about your company’s strength?
1>.FREE SAMPLES:
contact us by email or trade manager, we will send the free samples according to your request. 

2>. World-Class Bearing:
We provide our customers with all types of indigenous roller bearings of world-class quality.

3>.OEM or Non-Stand Bearings: 
Any requirement for Non-standard roller bearings is Easily Fulfilled by us due to our vast knowledge and links in the industry. 

4>.Genuine products With Excellent Quality: 
The company has always proved the 100% quality products it provides with genuine intent.

5>. After-Sales Service and Technical Assistance: 
The company provides after-sales service and technical assistance as per the customer’s requirements and needs.

6>.Quick Delivery: 
The company provides just-in-time delivery with its streamlined supply chain.

7>.Cost Saving: 
We provide long-life, shock-resistant, and high-reliability roller bearings with excellent quality and better performance.
Resulting in increased cost savings.

Q4: What will we do if you are not satisfied with the product?
A: If have any abnormal, Please contact us at first time, and we will immediately process

Q5: How long will you respond to our problems?
A: We will respond within 1 hour. 24 hours to solve your problem

Q6: Is optional lubrication provided?
A: We can offer a wide range of oils and greases for a variety of applications. Please contact our engineer for technical
assistance with any special requirements

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Cage: Without Cage
Rows Number: Multiple
Load Direction: Thrust Bearing
Samples:
US$ 10/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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Customized Request

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

linear bearing

Differences between Open-Type and Closed-Type Linear Bearings

Open-type and closed-type linear bearings are two common variations used in linear motion systems, each with its own advantages and considerations:

  • 1. Open-Type Linear Bearings:

Open-type linear bearings, as the name suggests, have an open design that allows easy access to the bearing’s rolling elements and raceways. These bearings are characterized by:

  • Quick Maintenance: Open-type bearings are easier to clean, lubricate, and inspect due to their open structure, making maintenance more convenient.
  • Increased Contamination Risk: Because they are exposed, open-type bearings are more susceptible to dust, debris, and contamination, which can affect their performance and lifespan.
  • 2. Closed-Type Linear Bearings:

Closed-type linear bearings are enclosed within a housing or carriage that provides protection from external elements. These bearings offer the following features:

  • Enhanced Contamination Protection: Closed-type bearings are less vulnerable to contaminants and offer improved protection against dust, dirt, and debris, leading to longer service life.
  • Reduced Accessibility: Maintenance and inspection of closed-type bearings might be more complex due to the need to disassemble the housing or carriage for access.
  • Reduced Noise: The enclosed design of closed-type bearings can contribute to reduced noise levels, which is advantageous in noise-sensitive applications.

Choosing between open-type and closed-type linear bearings depends on the specific requirements of the application. If easy maintenance and accessibility are crucial, open-type bearings might be preferred. On the other hand, closed-type bearings offer better protection against contaminants and reduced noise, making them suitable for environments where cleanliness and quiet operation are essential.

linear bearing

Recent Advancements in Linear Bearing Technology

Recent years have seen significant advancements in linear bearing technology, leading to improved performance, reliability, and versatility. Some notable developments include:

  • Nanotechnology: The integration of nanotechnology has allowed for the development of ultra-precision linear bearings with nanometer-scale accuracy. These bearings are ideal for applications requiring extremely fine movement and positioning.
  • Smart Bearings: Advances in sensor technology have enabled the creation of smart linear bearings that can monitor parameters like temperature, load, and vibration in real time. This data helps in predictive maintenance and optimizing operational efficiency.
  • Materials Innovation: New materials with enhanced properties, such as self-lubricating and corrosion-resistant coatings, have extended the lifespan of linear bearings and reduced the need for frequent lubrication and maintenance.
  • Compact Designs: Manufacturers are designing more compact linear bearings to suit space-constrained applications while maintaining high load capacity and precision.
  • Environmental Sustainability: There’s a growing emphasis on developing linear bearings with reduced environmental impact, including using eco-friendly materials and designs that require less energy to operate.
  • Integration of IoT: Linear bearings are being integrated into the Internet of Things (IoT) networks, allowing them to communicate with other equipment and systems for seamless automation and optimization.
  • Magnetic Levitation Bearings: Magnetic levitation (maglev) technology is being applied to linear bearings to create frictionless movement, reducing wear and enabling smoother and more precise motion.
  • Advanced Coatings: Coatings with enhanced wear resistance, low friction, and improved thermal properties are being applied to linear bearings, extending their service life in challenging environments.

These advancements have contributed to the expanding range of applications where linear bearings can be used, from aerospace and automotive industries to medical devices and consumer electronics. As technology continues to evolve, linear bearings will play a crucial role in enabling more efficient and precise motion control across various sectors.

linear bearing

Examples of Crucial Motion Control Scenarios Using Linear Bearings

Linear bearings are crucial for achieving precise motion control in various scenarios where accuracy, repeatability, and smooth movement are essential. Here are some examples:

  • 1. CNC Machining:

In computer numerical control (CNC) machines, linear bearings enable precise movement of the cutting tool or workpiece along multiple axes. This accuracy is necessary to produce complex and intricate parts with tight tolerances.

  • 2. Semiconductor Manufacturing:

In semiconductor fabrication equipment, linear bearings control the movement of wafers, masks, and other components with micron-level precision. This precision is vital for creating tiny circuits and microchips.

  • 3. 3D Printing:

In 3D printers, linear bearings ensure accurate positioning of the print head and build platform. This accuracy is crucial for creating intricate and detailed 3D-printed objects.

  • 4. Laser Cutting and Engraving:

Linear bearings are used in laser cutting and engraving machines to control the movement of the laser head. Precise motion ensures accurate cutting and engraving on various materials.

  • 5. Microscopy:

In microscopy applications, linear bearings enable precise positioning of microscope stages and objectives. This accuracy is essential for capturing detailed images and conducting precise measurements.

  • 6. Metrology and Inspection:

Linear bearings are crucial in metrology and inspection equipment for accurately measuring and inspecting parts. This ensures compliance with quality standards and specifications.

  • 7. Optical Systems:

In optical systems, linear bearings control the movement of lenses, mirrors, and other optical components. Precise motion is essential for maintaining accurate focus and alignment.

  • 8. Coordinate Measuring Machines (CMMs):

Linear bearings in CMMs allow accurate measurement of parts’ dimensions and geometries. Precise motion ensures reliable measurement results.

  • 9. Aerospace and Defense Testing:

In aerospace and defense industries, linear bearings are used in testing equipment to simulate various conditions. Accurate motion control is crucial for testing components’ performance and durability.

These examples highlight the critical role of linear bearings in achieving precise motion control across industries. Whether in manufacturing, research, or testing, linear bearings ensure accurate and repeatable movement for optimal results.

China supplier Rowing-Machine Plastic Coated Bearing China Csk25 Linear Flat Needle Roller Bearings   deep groove ball bearingChina supplier Rowing-Machine Plastic Coated Bearing China Csk25 Linear Flat Needle Roller Bearings   deep groove ball bearing
editor by CX 2024-05-13