Comprehensive analysis of magnetic coupling

Magnetic coupling is a transmission device that uses the magnetic force of permanent magnets or electromagnets to achieve non-contact torque transmission, and can complete power transmission without mechanical connection. The following is a comprehensive analysis of it:

 

1. Core Principle

  • Magnetic coupling

The torque transmission between the active end and the driven end is achieved through the interaction of the magnetic field generated by permanent magnets (such as NdFeB, SmCo) or electromagnets.

  • Non-contact transmission

There is a physical gap (air gap) between the two components to avoid mechanical friction. The typical gap is 0.1~10mm, depending on the design.

 

2. Main Types

  • Synchronous magnetic coupling

Structure: The inner and outer rotors are inlaid with permanent magnets, and the N-S poles are arranged alternately.

Features: Torque is synchronized with speed, but may lose step (slip) when overloaded.

Application: Scenarios that require precise transmission such as pumps and fans.

  • Eddy current magnetic coupling (asynchronous type)

Structure: The conductor disk (copper/aluminum) rotates in the magnetic field to generate eddy currents and form torque.

Features: With soft start and overload protection capabilities, but there is slip (speed difference).

Application: High-power speed regulation or buffer start equipment.

  • Axial and radial magnetic circuit design

Axial: The magnets are arranged along the axial direction, suitable for small torque and high speed.

Radial: The magnets are arranged along the radial direction, with greater torque but complex structure.

 

3. Key Advantages

Zero leakage: The sealing field (such as chemical pumps) eliminates medium leakage.

Maintenance-free: No wear parts, long life.

Vibration reduction and noise reduction: Isolate vibration and reduce system noise.

Overload protection: Automatically slip when the torque exceeds the limit to protect the equipment.

Adapt to harsh environments: Corrosion resistance, high temperature (Samarium Cobalt magnets can reach 350℃).

 

4. Performance Parameters

Parameter Typical Range / Description
Torque 0.1 Nm ~ 50 kNm (Customizable for high torque)
Efficiency Synchronous type > 95%, Eddy-current type 80%~90%
Maximum Speed Up to 50,000 rpm (Requires high-precision balancing)
Temperature Limit -50°C ~ +300°C (Depends on magnet material)

 

5. Selection Points

Torque requirements: Start torque, working torque and peak torque need to be calculated.

Air gap requirements: The larger the air gap, the more significant the decrease in torque transmission capacity (inversely proportional to the square of the distance).

Environmental factors: Corrosive media need to be encapsulated in stainless steel; samarium cobalt magnets are used in high temperature environments.

Out-of-step torque: Select a rated value 20%~30% higher than the working torque to prevent slippage.

 

6. Typical Application Scenarios

Chemical/pharmaceutical: magnetic pump, reactor stirring (leakage prevention).

Vacuum system: semiconductor equipment transmission (pollution-free).

Food machinery: avoid lubricant contamination.

New energy: fuel cell circulation pump, wind power generation variable pitch system.

 

7. Limitations

High cost: Permanent magnetic materials (especially rare earth magnets) are expensive.

Axial force problem: The influence of axial attraction between magnets on bearings needs to be considered at high power.

Torque limitation: Super large equipment requires multi-magnetic circuit parallel design.

 

8. Future Trends

High temperature superconducting magnets: Improve torque density and reduce magnet volume.

Intelligent control: Combine sensors to achieve real-time torque monitoring and adjustment.

Composite materials: Lightweight and corrosion resistance optimization.

 

Siemens 6DP1900-8AA SYS900 Monitoring Module Advanced Diagnostics for Industrial Automation

In today’s demanding industrial environments, proactive system monitoring is critical to maximizing uptime and operational safety. The Siemens 6DP1900-8AA SYS900 Monitoring Module delivers robust real-time diagnostics and fault prevention for automation systems. Designed for seamless integration with SIMATIC PCS 7 and other Siemens platforms, this module ensures continuous system health assessment, early fault detection, and enhanced process reliability across industries like manufacturing, energy, and pharmaceuticals.

 

 

Key Features & Benefits

 

1. SYS900 Monitoring Module Core Capabilities
Real-Time System Diagnostics: Continuously tracks critical parameters (voltage, temperature, signal integrity) with instant fault alerts.
Predictive Maintenance: Identifies performance degradation trends to prevent unplanned downtime.
Industrial Resilience: Engineered for harsh environments (vibration, EMI, wide temperature ranges).
Seamless Integration: Native compatibility with SIMATIC PLCs/PCS 7, supporting PROFIBUS/PROFINET protocols.
2. 6DP1900-8AA Model-Specific Advantages
Modular Design: Slot-mounted form factor for easy installation/hot-swapping in control racks.
Multi-Layer Protection: Monitors power supplies, communication buses, and I/O statuses.
Visual Indicators: LED status displays for quick troubleshooting (power, comms, faults).
Scalability: Supports centralized or distributed monitoring architectures.

Applications

 

Manufacturing: Production line health monitoring to prevent stoppages.
Energy/Power Plants: Critical infrastructure protection for turbines, grids.
Chemical/Pharma: Safety-critical system oversight to mitigate hazardous failures.
Water/Wastewater: Pump and valve network diagnostics.

Why Choose the 6DP1900-8AA?

 

✔ Downtime Reduction: Early fault detection cuts maintenance windows by up to 40%.
✔ Safety Compliance: Meets IEC 61508 SIL2 for functional safety applications.
✔ Cost Efficiency: Lowers TCO via predictive maintenance vs. reactive repairs.
✔ Future-Proof: Upgradable firmware for evolving automation needs.

Frequently Asked Questions (FAQs)

 

Q: Is the 6DP1900-8AA compatible with non-Siemens PLCs?
A: While optimized for SIMATIC systems, it can interface with third-party devices via gateways (consult Siemens documentation).

Q: Can modules be replaced without system shutdown?
A: Yes, hot-swappable design minimizes operational disruption.

Q: How are alerts transmitted?
A: Via integrated HMI displays, SCADA systems, or SMS/email through connected middleware.

Q: What’s the typical lifespan?
A: 10+ years with proper environmental controls (dust/temperature management).

Conclusion

 

The 6DP1900-8AA SYS900 Module is a mission-critical component for industries prioritizing system reliability. By combining Siemens’ engineering rigor with advanced diagnostics, it empowers operators to transition from reactive fixes to proactive optimization—ensuring smoother, safer, and more profitable operations.

 

Embrace Sustainability with Xinfei's Revolutionary Plastic Free Paper Bag Solutions

In today's rapidly evolving world, the importance of sustainable living cannot be overstated. One vital step towards preserving our environment is reducing the use of plastic and embracing eco-friendly alternatives. In this regard, Xinfei presents an innovative range of products that replace plastic with paper, providing a greener choice for consumers. Let's explore Xinfei's groundbreaking solutions and discover how they contribute to a cleaner and more sustainable future.

 

Plastic Free Paper Bags: The Journey Towards Sustainability

Xinfei introduces plastic free paper bags as an effective alternative to plastic bags. These bags are crafted using recycled materials and sustainably sourced paper. By opting for plastic free paper bags, individuals can significantly reduce their ecological footprint. Xinfei's paper bags are not only durable and versatile, but also fully recyclable, ensuring reduced waste and environmental impact.

 

Plastic-free Paper Pouch

 

Degradable Heat Sealing Paper: Innovating for a Sustainable Tomorrow

Xinfei's degradable heat sealing paper is an ideal solution for packaging needs. This unique paper is designed to decompose naturally, minimizing its impact on landfills. By utilizing this innovative product, businesses can reduce their carbon footprint while maintaining the integrity and freshness of their packaged goods.

 

Recycle Paper Bags: A Circular Approach to Packaging

Xinfei's recycle paper bags are a testament to the brand's commitment to sustainability. These bags are created from post-consumer recycled paper, providing a closed-loop solution for packaging needs. By opting for recycle paper bags, individuals and businesses contribute to the circular economy, where resources are conserved and utilized efficiently.

 

Recycle Paper Bags

 

Xinfei+ Environmental Commitment: Adding Value to Your Brand

Apart from its exceptional products, Xinfei excels in delivering top-notch services that strengthen your brand's environmental commitment. By partnering with Xinfei, your company can showcase its dedication to sustainability, attracting environmentally conscious consumers and enhancing brand loyalty. Xinfei's reliable customer support ensures a seamless experience, allowing you to focus on your core business while making a positive environmental impact.

 

 

Maybe you are curious why this paper package is belong to paper material, why can be heat seal without PE laminated or PE composite? Because we coat some biodegradable water-soluble heat-sealing material on the paper surface, this biodegradable food-grade plastic-free coating has passed the SVHC test and bio degradation test of SGS, and it has excellent physical properties, such as heat sealing, barrier property, wear resistance, high and low temperature resistance, oil resistance, etc. So the paper can be heat seal with the temperature and force.

The Difference Between Xinfei Release Paper and CCK,MGK,SCK release paper ?

MGK, CCK, and SCK are all types of release papers used in various industries. Here are the differences between them:

 

MGK (Machine-Glazed Kraft): MGK release paper is made from machine-glazed Kraft paper. It has a smooth and glossy surface on one side, which provides good release properties. It is commonly used in applications such as adhesive tapes, labels, and decals.

 

CCK (Clay-Coated Kraft): CCK release paper is made from Kraft paper coated with a layer of clay on one side. The clay coating provides enhanced smoothness and improved release properties. CCK release paper is often used in applications that require high-quality printing, such as pressure-sensitive labels, graphic arts, and packaging.

 

SCK (Super-Calendered Kraft): SCK release paper is made from Kraft paper that has been super-calendered to achieve a very smooth surface. This type of release paper offers excellent release properties and is commonly used in applications such as silicone release liners, composites, and synthetic leather.

 

In summary, the main differences between MGk, ccK, and sck release papers lie in their manufacturing processes, surface characteristics, and specific applications. MGk paper is machine-glazed kraft paper, ccK paper is clay-coated kraft paper, and sck paper is super-calendered kraft paper. 

 

 

 

While Xinfei Release paper is not belong to CCK release paper ,MGK release paper or SCK release paper. The base paper we use is similar to Glassine's base paper, two coatings on paper surface. First primar PVA coating, then solvent free silicone oil coating. Safe and no chemical residues. Widely used in hygiene industry, like sanitary napkin or sanitary pads.

 

 

Custom EVA vs. Cut and Sew vs. Lamination Cases Which Case Style is Right for You?

When it comes to choosing the perfect protective case for your product, the options can be hard to choose from.  At Yisi Packing, we specialize in manufacturing custom EVA cases, cut and sew cases, and lamination cases.  Each style has its unique strengths, and selecting the right one depends on your product, budget, industry, and brand goals.

 

In this comprehensive guide, we’ll explore the differences between EVA, cut and sew, and lamination cases.  Whether you're a startup launching a new device, a cosmetics brand looking for stylish packaging, or a medical company that needs robust protection, this blog will help you make an informed decision.

 

1. What Are EVA Cases?

 

EVA (Ethylene Vinyl Acetate) is a high density foam material widely used for semi rigid protective cases.  These cases are made by thermoforming EVA sheets, which are then laminated with fabrics like PU, nylon, or polyester and finished with a zipper and handle.

 

Key Features:

  • Lightweight yet durable

  • Water resistant and shock absorbent

  • Customizable shapes and colors

  • Ideal for electronics, tools, cosmetics, and medical kits

 

Manufacturing Process:

  • Mold design based on your product
  • Thermoforming EVA shell
  • Fabrc lamination
  • Assembly with zippers, handles, and internal trays

 

Use Cases:

 

2. What Are Cut and Sew Cases?

 

Cut and sew cases are made by stitching multiple pieces of fabric together over soft padding or foam.  Unlike molded EVA cases, these are soft sided and more flexible, offering a unique feel and design.

 

Key Features:

  • More fabric variety (canvas, denim, mesh)

  • Greater design freedom for shapes and pockets

  • Softer, more textured finish

  • Often includes extra compartments and internal dividers

 

Manufacturing Process:

  • Fabric and padding selection

  • Pattern cutting

  • Sewing and stitching of panels

  • Zipper and accessory attachment

 

Use Cases:

  • Cosmetic and toiletry bags

  • Travel pouches and organizers

  • Wearable tech cases

  • Children’s products

 

3. What Are Lamination Cases?

 

Lamination cases combine thermoforming and layering technologies, creating a case with a laminated surface over a structured paper or plastic base.  This approach allows for sleek finishes and eye catching branding, making them a popular option for premium packaging.

 

Key Features:

  • Glossy or matte surface textures

  • More premium and high end look

  • Great for printing graphics and logos

  • Semi rigid like EVA but more design focused

 

Manufacturing Process:

  • Base paper or plastic shaping

  • Lamination of printed or decorative fabrics

  • Assembly with zippers and linings

 

Use Cases:

  • High end electronics packaging

  • Brand gift sets

  • Medical and wellness kits

  • Marketing or promotional cases

 

4. Head to Head Comparison

 

Feature EVA Case Cut and Sew Case Lamination Case
Rigidity Semi rigid Soft Semi rigid
Weight Light Very light Moderate
Customization High (mold shapes, inserts) Very High (panels, pockets) High (graphic lamination)
Durability High Moderate High
Water Resistance Good Varies by fabric Very good
Best for Electronics, tools, medical Travel, beauty, fashion High end branding, gifting
MOQ (Minimum Order Qty) Moderate Low to moderate Moderate to high
Unit Cost Mid range Low to mid range Higher

 

5. How to Choose the Right Style for Your Product

 

✅ Choose EVA Case if:

  • You need solid protection with lightweight material

  • Your product requires a custom molded fit

  • You want a sleek, professional look

 

✅ Choose Cut and Sew Case if:

  • Your case needs lots of compartments or zippers

  • You’re working with soft goods or fabric oriented products

  • You want the lowest cost at low volumes

 

✅ Choose Lamination Case if:

  • You want a luxury feel and visual impact

  • Your packaging is part of a premium product experience

  • You plan to print logos or full color designs

 

6. Why Work with Yisi Packing?

 

Yisi Packing is a leading EVA case and soft packaging manufacturer based in China. We support global brands with:

 

  • In house mold and design development

  • High volume production capabilities

  • Custom materials, colors, and finishes

  • Strict quality control and ISO certification

 

Clients trust us for our consistency, innovation, and competitive pricing.

 

If you're still unsure which type of case is right for your product, our team of engineers and designers is ready to help you.  We offer free consultations, samples, and design support tailored to your business.

 

7. Ready to Start Your Custom Case Project?

 

Contact Yisi Packing today to request a quote or sample. Whether you’re developing a new product or upgrading your current packaging, we’ll guide you every step of the way.

 

👉 Website: www.packingyisi.com
📧 Emailinfo@packingyisi.com
📞 Phone: +852-57402289

 

Bonus Tip: Optimize for Your Industry

 

Each case type can be fine tuned to serve your niche:

  • EVA for medical kits with antimicrobial lining

  • Cut and sew for travel with hanging hooks and organizers

  • Lamination for cosmetics with mirror inserts and printed branding

 

Yisi Packing will help you turn these ideas into reality.

 

What kinds of wiring harnesses are there in a car?

Introduction

In modern fuel-powered vehicles, the electrical system plays a crucial role, and the wiring harness is the "blood vessels" and "nerves" of the entire electrical system. It is responsible for transmitting power, signals and data to ensure the normal operation of various components such as the engine, lights, instruments and safety systems. So, what exactly are the wiring harnesses in a fuel-powered car? What are their respective functions?

 

 1. What is an automotive wiring harness?

A Wiring Harness for automobiles is an integrated system composed of multiple wires, cables, connectors, terminals, protective sleeves (such as tapes, bellows), etc. It is designed and assembled in accordance with the electrical layout of the vehicle to ensure that power, signals and data can be transmitted efficiently and stably.

Due to the complex internal environment of automobiles (high temperature, vibration, humidity, etc.), the wiring harness must meet the following requirements:

  • High-temperature resistant (The engine compartment can reach over 120℃)
  • Anti-vibration (preventing fracture caused by long-term vibration)
  • Waterproof and dustproof (especially in the chassis and engine compartment)
  • Electromagnetic shielding (to avoid signal interference

 

2. Classification of main wiring harnesses in fuel vehicles

The wiring harnesses of fuel vehicles are usually classified by functional areas and mainly include the following categories:

(1)Engine Harness

Function: Connect the engine control unit (ECU), sensors, actuators (such as fuel injectors, ignition coils), etc., to ensure the stable operation of the engine.

Main components:

  • ECU wiring harness: Transmits engine control signals (such as fuel injection, ignition timing).
  • Sensor wiring harness: Connects oxygen sensors, crankshaft position sensors, knock sensors, etc., providing real-time data.
  • Actuator wiring harness: Controls fuel injectors, throttle valves, idle motors, etc.

Features: High-temperature resistant, oil-resistant, and usually made of high-specification insulating materials.

 

(2) Body Wire Harness in car

Function: Connect electrical devices inside the vehicle, such as lights, air conditioners, audio systems, power Windows, etc.

Main components:

  • Lighting system wiring harness: connects headlights, taillights, turn signals, brake lights, etc.
  • Air conditioning wiring harness: Controls compressors, blowers, and temperature sensors.
  • Audio/entertainment system wiring harness: connects radios, speakers, and navigation systems.
  • Electric window/door lock wiring harness: Controls window lifting and central locking.

Features: Complex wiring, requiring consideration of waterproofing (such as door wiring harnesses) and anti-interference (such as audio signal lines).

 

(3) Dashboard Wire Harness

Function: Connect to the dashboard, center console, airbags, etc.

Main components:

  • Combined instrument wiring harness: Transmits information such as vehicle speed, rotational speed, fuel level, and water temperature.
  • Airbag wiring harness: Connects the airbag sensor and the detonation device (high reliability required).
  • Multimedia/navigation wiring harness: Supports display screens, reversing cameras, etc.

 Features: It is necessary to ensure stable signals and prevent false alarms (such as incorrect triggering of airbags).

 

(4) Chassis Wire Harness

Function: Connect components related to the chassis, such as ABS, ESP, suspension system, etc.

Main components:

  • ABS/ESP wiring harness: Connects wheel speed sensors and hydraulic control units.
  • Transmission wiring harness (for automatic transmission models) : Transmits shift signals.
  • Suspension system wiring harness (for some high-end vehicles) : Connects the air suspension control module.

 Features: It needs to be wear-resistant and corrosion-resistant (the chassis is vulnerable to mud and water erosion).

 

(5) Trunk Wire Harness

Function: Connect the trunk lights, reversing radar, fuel pump, etc.

Main components:

  • Fuel pump wiring harness: Supplies power to the fuel pump (directly affecting the fuel supply to the engine).
  • Reversing radar/camera wiring harness: Supports reversing assistance system.
  • Trunk light wiring harness: Provides lighting.

Features: Waterproof required (water may enter the trunk).

 

(6) CAN bus (Controller Area Network)

Function: Modern automobiles use CAN bus to replace some traditional wiring harnesses, achieving efficient data transmission (such as communication between the engine, transmission, and instruments).

Advantages:

  • Reduce the weight of the wiring harness (traditional wiring harnesses may account for 5% of the total vehicle weight).
  • Improve data transmission speed (such as vehicle speed and fault code sharing).

 

Application

The engine ECU communicates with the transmission ECU.

The dashboard displays the vehicle status (such as fault lights).

 

3. Common Faults and Maintenance of Automotive Wiring Harnesses

Although the wiring harness design is reliable, problems may still occur after long-term use:

(1) Common faults

  • Open circuit: Wire breakage (such as frequent opening and closing of car doors causing fatigue of the wiring harness).
  • Short circuit: The insulation layer is damaged, causing the positive and negative poles to come into contact (which may burn out the fuse).
  • Poor contact: Terminal oxidation or loosening (such as the headlights flickering on and off).
  • Corrosion: A humid environment causes the wiring harness to rust (especially the chassis wiring harness).

(2) Maintenance suggestions

  • Regularly inspect the appearance of the wiring harness (for any wear or aging).
  • Avoid modifying the circuit privately (which may cause overload or short circuit).
  • After wading through water, check whether the wiring harness has taken in water (especially the engine wiring harness).

 

4. Future trends: Lightweight and intelligent wiring harnesses

As the degree of automotive electronicization increases, wiring harnesses are also constantly evolving:

  • Lightweighting: Use aluminum wires and optical fibers to replace some copper wires (such as Tesla reducing the length of wire harnesses).
  • High-speed data transmission: Supports in-vehicle Ethernet (for autonomous driving and high-definition cameras).
  • Modular design: Simplifies installation and maintenance processes.

 

Aichie is a leading provider of connection solutions in the industry, focusing on producing high quality connectors, cables and wire harnesses. Aichie has hundreds of skilled employees in two factories, the domestic factory is located in the famous manufacturing city Dongguan City China , and the overseas factory is located in Tan Uyen City, Binh Duong Province, Vietnam. Products are widely used in industries such as Automobiles, Clean Energy, Automation manufacturing, and Smart Homes.

Welcome to cooperate with us, we will do our best to help you win much more business opportunities!

Send inquiry: sales03@aichie.com

 

Although the automotive wiring harness may seem insignificant, it is the core of the entire vehicle's electrical system. From engine control to airbags, from headlights to entertainment systems, every wire is playing a silent role. Understanding the classification and functions of wiring harnesses can not only help car owners maintain their vehicles better, but also enable us to have a deeper understanding of the operating principles of automobiles.

 

Achievement for Old Rolling Mill Upgrading | Esgbearing.com

disadvantages of old rolling mill stands

Early and old types rolling mill stands were different from modern mill stand. Usually spherical roller bearings were installed onto the roll neck, meeting the production requirements at that time. However, it became outdated with more and more  problems as steel mills have higher demand for rolling mill delivering speed.

roller bearings

Disadvantage

  • Shorter bearing working life leading to higher bearing consumption,
  • Lower precision of steel products,
  • More wear on roll neck,
  • More endplay for the rolls
UPGRADING YOUR MILL STANDS
What ESG Bearing can do for you?
  • No  cost for upgrading without changing the rolls and bearing housing
  • Maintaining the production requirements of carrying loads of production requirements
Advantage

Minimizing the roll run-out with interference fit of bearing inner ring and roll neck

Allowing higher radial loads and higher rolling speed

Higher precision of steel products

Convenient for mounting and dismounting, with separated and interchangeable inner

     rings and outer rings

Reducing rolling mill downtime and maintenance

China rolling mill bearings manufacturer
Cylindrical Roller Bearings
carrying higher radial loas and improving rolling mill precision
Spherical Roller Bearing Manufacturer
AXIAL BALL BEARING
carrying axial loads to stop axial movements of the rolls





Achievement in Steel Rolling Mill Bearings

The working conditions for steel mill bearings are demanding as they will face dust, steel particles, water, heat, high speed and high temperature.


Four-row cylindrical roller bearing works as the radial cylindrical roller bearings on the roll neck. Its performance values the most for the rolling mill bearings.



ESG Bearing, as an expert on steel rolling mill bearings. We are always improving ESG quality to better meet steel mill’s requirements. With years of testing, ESG Bearing now announced that ESG has successfully make our four-row cylindrical roller bearings with steel cage.


The working life, wear-resistance and performance of the radial cylindrical roller baring with steel cage proves to be better than bearing with brass cage.


Succeed in steel cage on rolling mill bearings


ESG Bearing, specializes in making high quality rolling mill bearings for steel mills of bars, angles, beams, coil and sheet, etc.

↑ higher load

+ wear resistance

→ longer working life

compared with brass cage


About This Achievement

ESG Bearing has been spent about 3 years for the testing and improving our production of radial roller bearing with steel cage. And now the overall feedback for steel cage is good with ESG’s control for every processing steps.

Radial roller bearings for rolling mill stands are working in the poorest conditions with heat, heavy load, high speed, particles, and water. Early type of the roller bearings usually used brass cage for good tenacity and vibration damping.

With the material and technology, we are having now, ESG’s roller bearings with steel cage will have a better performance of tensile strength, peel strength, wear resistance, vibration damping than bearing with brass cage. It will be more widely used for more steel mills.


Mechanical Performance
Cage Tensile Strength Yield Limit Peel Strength Hardness
σb σ0.2 δ HB
steel cage >400MPα >250MPα 18% >160~190
brass cage >250MPα >120MPα 15% 80~100
steel cage brass cage
> 90% clients re-order four-row cylindrical roller bearing with steel cage


Bilateral Double-row Thrust Tapered Roller Bearing

Bilateral double-row thrust tapered roller bearings are a specific type of bearing designed to carry higher axial loads on the roll neck of the rolling mill stands. As the name implies, they can carry axial loads in both directions.



 

Usually, they are more often used in modern rolling mills, working with four-row cylindrical roller bearings, and double-row cylindrical roller bearings. Compared with angular contact ball bearings, and deep groove ball bearings, they can achieve the requisite axial loads with less space of the bearing housing.

Brief introduction of rolling mill bearing-four-row cylindrical roller bearing configuration

Four row cylindrical roller bearings + Thrust Bearings

Cylindrical roller bearings inner diameter works together with roll neck to endure radial force. It has the advantages of heavy load, high rotation speed limit, high precision,inner and outer rings seperability and replacability, easy procession, lower production cost and convenient mounting and dismounting. The thrust bearings endure axial force. The detailed structure type can be chosen based on rolling mill feature.


When the heavy load speed is slow, the cylindrical roller bearings work with thrust bearings to endure thrust load with smaller axial clearance. When the rolling speed is higher, it works with angular contact ball bearings with higher rotation speed limit and with strick control of axial clearance to make the roller work with close axial guide and endure general axial load force.


This bearing specification type has the advantage of longer bearing life, reliability, high presion of the rolling products and easy control. So they are applicant widely in wire steel rolling mill, plate steel rolling mill,frame rolling mill, double-support roll of cold rolling mill and hot rolling mill.