China Good quality Industrial Machine Bearings Suppliers 6206 Bearing Series Csk17 PP Needle Bearing 412-009 double row 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 
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



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?
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: With Cage
Rows Number: Double
Load Direction: Radial Bearing
US$ 10/Piece
1 Piece(Min.Order)


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Customized Request

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

needle bearing

Enhancement of Medical Devices and Instruments through Needle Bearings

Needle bearings play a crucial role in enhancing the functionality and precision of various medical devices and instruments. Their unique design characteristics make them well-suited for applications in the medical field, where accuracy, reliability, and smooth operation are paramount. Here’s how needle bearings improve the functionality of medical devices and instruments:

  • Surgical Instruments:

1. Surgical Drills and Tools:

Needle bearings are used in surgical drills and powered tools to facilitate precise and controlled rotational movement. These bearings provide low friction and maintain consistent performance, allowing surgeons to perform delicate procedures with accuracy.

  • Medical Imaging Equipment:

1. X-Ray Machines and CT Scanners:

Needle bearings are employed in the rotating components of X-ray machines and CT scanners. The smooth rotation enabled by needle bearings ensures accurate positioning and imaging, reducing image artifacts and enhancing diagnostic capabilities.

  • Diagnostic Instruments:

1. Blood Analysis Machines:

Needle bearings contribute to the smooth operation of blood analysis machines, ensuring precise movement of components that handle blood samples. This accuracy is vital for obtaining reliable diagnostic results.

  • Pharmaceutical Devices:

1. Drug Dispensing Systems:

Needle bearings are used in drug dispensing systems to ensure precise and consistent delivery of medications. The smooth movement of these bearings contributes to accurate dosage administration.

  • Patient Beds and Equipment:

1. Adjustable Beds and Chairs:

Needle bearings are utilized in adjustable beds and patient chairs to facilitate smooth and precise adjustments. These bearings enhance patient comfort and allow healthcare professionals to position patients accurately.

  • Microsurgery Devices:

1. Microsurgery Instruments:

Microsurgery requires utmost precision, and needle bearings play a vital role in ensuring the accuracy of microsurgery instruments. These bearings enable controlled movement, allowing surgeons to perform intricate procedures with minimal disruption.

By incorporating needle bearings into medical devices and instruments, manufacturers achieve several benefits:

  • Precision:

Needle bearings enable accurate and controlled movement, critical in medical procedures where precision is essential.

  • Reliability:

The reliable performance of needle bearings ensures consistent operation of medical devices, reducing the risk of malfunctions during critical procedures.

  • Smooth Operation:

The low-friction design of needle bearings contributes to smooth and friction-free movement in medical devices, enhancing overall functionality.

  • Reduced Wear:

Needle bearings’ ability to distribute loads evenly reduces wear and prolongs the lifespan of components, minimizing the need for frequent replacements.

  • Accuracy:

Accurate movement provided by needle bearings enhances the precision of medical imaging and diagnostic equipment, leading to more reliable results.

Needle bearings are an integral part of medical devices and instruments, contributing to improved patient care, accurate diagnostics, and successful medical procedures.

needle bearing

Common Signs of Wear or Damage in Needle Bearings and Replacement Timing

Needle bearings, like any mechanical component, can experience wear or damage over time due to factors such as load, speed, contamination, and improper maintenance. Recognizing the signs of wear or damage in needle bearings is crucial to ensuring the continued efficiency and reliability of machinery. Here are the common signs of wear or damage and when needle bearings should be replaced:

  • Unusual Noise:

Increased noise, grinding, or rattling sounds during operation can indicate internal damage or wear in needle bearings. Unusual noise is often an early warning sign that replacement is needed.

  • Irregular Operation:

Any irregularities in the smoothness of motion, such as sticking, binding, or rough movement, can indicate that the needle bearings are no longer functioning properly.

  • Increased Friction and Heat:

If you notice higher operating temperatures or increased friction, it may suggest that the bearings are experiencing excessive wear. Elevated temperatures can lead to premature failure.

  • Visible Wear or Pitting:

Inspect the needle bearings visually for signs of wear, pitting, or corrosion on the bearing surfaces. These issues can affect the bearing’s ability to operate correctly.

  • Lubrication Issues:

Reduced lubrication can lead to increased wear and damage. If you notice inadequate lubrication or the presence of contaminants in the lubricant, it’s time to address the issue.

  • Abnormal Vibration:

If you experience unusual vibrations during operation, it could be a sign that the needle bearings are no longer providing proper support and load distribution.

  • Excessive Play or Clearance:

Excessive play or looseness in the bearing assembly can indicate that the internal components are worn out, affecting the bearing’s performance.

  • Reduced Performance:

If your machinery or equipment is not performing as expected, it could be due to deteriorating needle bearings that are no longer able to handle the required loads and speeds.

The timing for replacing needle bearings depends on factors such as the severity of wear, the application’s demands, and the manufacturer’s recommendations. In general, needle bearings should be replaced if any of the above signs are observed, as continuing to operate with damaged bearings can lead to further equipment damage, reduced efficiency, and even safety risks.

Regular maintenance, including visual inspections, proper lubrication, and adherence to manufacturer guidelines, can help extend the lifespan of needle bearings and ensure their optimal performance. When in doubt, consulting with bearing experts or manufacturers can provide guidance on when to replace needle bearings for the best results.

needle bearing

Examples of High-Load Applications Where Needle Bearings Excel

Needle bearings are well-suited for high-load applications due to their unique design and ability to handle substantial radial and axial loads. These bearings excel in scenarios where traditional bearings may not provide the required load capacity or compactness. Here are some examples of high-load applications where needle bearings excel:

  • Heavy Construction Equipment:

Construction machinery such as excavators, loaders, and bulldozers require components that can withstand heavy loads while maintaining efficient motion. Needle bearings are used in pivot points, joints, and articulating components to ensure smooth operation even under extreme loads.

  • Agricultural Machinery:

In agricultural equipment like tractors and combines, needle bearings are used in components such as gearboxes, transmission systems, and pivot points. These bearings contribute to the durability and reliability of machinery that operates in demanding field conditions.

  • Material Handling Systems:

Conveyor systems, forklifts, and warehouse automation equipment handle significant loads during the movement of materials and goods. Needle bearings provide smooth and efficient motion, allowing these systems to operate reliably while carrying heavy loads.

  • Mining Machinery:

Mining equipment, including crushers, screens, and conveyors, operates in harsh environments with substantial loads. Needle bearings are utilized in critical components to handle the extreme forces and provide reliable performance under challenging conditions.

  • Off-Road Vehicles:

Off-road vehicles like all-terrain vehicles (ATVs) and utility terrain vehicles (UTVs) encounter rough terrains and heavy loads. Needle bearings are used in suspension systems, steering linkages, and drivetrain components to ensure stability and durability.

  • Wind Turbines:

Wind turbine applications involve dynamic loads and the need for efficient motion in various components. Needle bearings are used in blade pitch systems, gearbox assemblies, and yaw mechanisms to handle both radial and axial loads while minimizing space requirements.

  • Hydraulic Cylinders:

Hydraulic systems in industries such as construction, manufacturing, and aerospace require precise control and efficient movement under high pressures. Needle bearings are used in hydraulic cylinder assemblies to support piston rods and provide smooth motion.

  • Railway and Transit Systems:

In rail transportation, needle bearings are used in wheelset bearings, suspension systems, and coupler assemblies. These bearings contribute to the reliable operation of trains and transit systems while handling the loads imposed by heavy vehicles and passengers.

  • Oil and Gas Industry:

In oil rigs and drilling equipment, needle bearings are used in components that experience high axial and radial loads, such as rotary tables, swivels, and mud pumps. These bearings withstand the demanding conditions of oil and gas exploration.

  • Bridge and Infrastructure Engineering:

Bridge bearings, expansion joints, and other structural components in civil engineering projects require bearings that can handle heavy loads and movements. Needle bearings are used to accommodate both vertical and horizontal loads while maintaining structural integrity.

In these high-load applications, needle bearings play a crucial role in providing efficient load handling, precise motion, and durability. Their ability to withstand substantial forces while maintaining a compact design makes them a preferred choice in scenarios where traditional bearings may be less suitable.

China Good quality Industrial Machine Bearings Suppliers 6206 Bearing Series Csk17 PP Needle Bearing 412-009   double row ball bearingChina Good quality Industrial Machine Bearings Suppliers 6206 Bearing Series Csk17 PP Needle Bearing 412-009   double row ball bearing
editor by CX 2024-04-15

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