A különbség a lengőcsapágyak és a siklócsapágyak között

lengőcsapágyak

A lengőcsapágyak (forgócsapágyak) a mechanikai alkatrészek új típusa. Belső gyűrűből, külső gyűrűből, gördülőelemből stb. áll. a lengőcsapágyak nagyméretű csapágyak, amelyek képesek a teljes terhelést elviselni. Egyszerre képes nagy axiális terhelések, radiális terhelések és billenőnyomatékok felvételére. Kompakt szerkezettel, kis tömeggel, kiváló szerkezeti merevséggel, nagy pontossággal, biztonsággal és megbízhatósággal rendelkezik.

Ma összehasonlítjuk a lengőcsapágyak és a siklócsapágyak közötti hasonlóságokat és különbségeket. Mindkettő ugyanazzal a működési elvvel, szerkezettel és alkatrészekkel rendelkezik. Mindkettő gördülő kerék gördülőelemekkel és pályákkal rendelkezik. A hagyományos csapágyakhoz képest azonban számos különbség van.

Különbségek a lengőcsapágyak és a siklócsapágyak között

Bearings are essential components in machinery, enabling smooth and efficient movement between parts. Among the various types of bearings, swing bearings and plain bearings stand out due to their unique characteristics and applications. Understanding the differences between these two types of bearings can help in selecting the right bearing for specific mechanical systems. This article delves into the key differences between swing bearings and plain bearings, covering aspects such as installation methods, size, structure, load capacity, operating speed, manufacturing process, and sealing devices.

Telepítési módszerek

Forgócsapágy

Swing bearings, also known as slewing bearings, are not attached to a spindle like regular bearings. Instead, they are mounted onto a bearing housing. The installation of swing bearings involves attaching them to the top and bottom supports using screws or bolts. This unique installation method allows swing bearings to support large and complex structures such as cranes, excavators, and wind turbines.

  • Mounting: Swing bearings are typically mounted on large, stationary structures and secured with multiple fasteners.
  • Support: The bearing housing provides a stable and robust support system that can handle heavy loads and large rotational movements.
  • Flexibility: This installation method offers flexibility in adjusting the alignment and positioning of the bearing to accommodate various operational requirements.

Sima csapágyak

Plain bearings, also known as bushings, are generally simpler in design and installation compared to swing bearings. They are typically mounted directly onto the spindle or shaft, allowing for a straightforward and compact setup.

  • Mounting: Plain bearings are usually pressed or slid onto a shaft, sometimes requiring a tight interference fit.
  • Support: They rely on the shaft and housing to provide support, which is sufficient for applications involving lower loads and rotational speeds.
  • Egyszerűség: The installation process is relatively simple, making plain bearings suitable for smaller and less complex machinery.

Méretkülönbség

Forgócsapágy

Swing bearings are characterized by their large size, which can range from 0.4 meters to 10 meters in diameter. In some specialized applications, the diameter of swing bearings can reach up to 40 meters. This substantial size enables them to support heavy and large structures.

  • Diameter: Typically ranges from 0.4 to 10 meters, with some bearings exceeding 40 meters in diameter.
  • Alkalmazások: Suitable for heavy machinery and equipment such as excavators, cranes, wind turbines, and large industrial machines.
  • Terhelhetőség: The large size allows swing bearings to handle substantial loads and forces, making them ideal for demanding applications.

Sima csapágyak

Plain bearings are generally much smaller in size compared to swing bearings. Their compact dimensions make them suitable for applications where space is limited and the loads are relatively lighter.

  • Diameter: Typically small, often less than a few centimeters in diameter.
  • Alkalmazások: Commonly used in small machinery, household appliances, automotive components, and other low-load applications.
  • Compact Design: The smaller size allows for easy integration into tight spaces, making plain bearings ideal for applications requiring minimal space.

Szerkezet típusa

Forgócsapágyak

Swing bearings are available in a variety of designs, each tailored to specific applications and load requirements. They can be broadly classified into two main types based on the contact mechanism: point contact and line contact.

Kapcsolattartó pont

  • Ball Bearings: Swing bearings with ball elements provide point contact, offering high precision and low friction.
  • Alkalmazások: Suitable for applications requiring smooth rotation and high precision, such as robotics and medical equipment.

Vonali kapcsolat

  • Roller Bearings: Swing bearings with roller elements provide line contact, which can handle higher loads and offer better stability.
  • Alkalmazások: Ideal for heavy-duty applications such as construction machinery, mining equipment, and industrial machinery.

Sima csapágyak

Plain bearings have a simpler structure compared to swing bearings. They can be classified based on their material and design into several types, such as sleeve bearings, flanged bearings, and thrust bearings.

  • Sleeve Bearings: Cylindrical bearings that provide smooth sliding motion.
  • Flanged Bearings: Bearings with a flange for mounting, offering better alignment and support.
  • Thrust Bearings: Designed to handle axial loads and prevent shaft movement along the axis.

Load Capacity

Forgócsapágy

Swing bearings are designed to withstand a variety of lateral loads, including axial and radial forces as well as large tilting moments. This ability to handle multiple load types simultaneously makes them suitable for heavy-duty applications.

  • Axial Load: Swing bearings can support significant axial loads, which are forces parallel to the axis of rotation.
  • Radial Load: They can also handle radial loads, which are perpendicular to the axis of rotation.
  • Tilting Moments: Swing bearings are capable of withstanding large tilting moments, making them ideal for applications with uneven load distribution and heavy rotational forces.

Sima csapágyak

Plain bearings, on the other hand, are generally designed to handle lower loads compared to swing bearings. Their load capacity is usually limited to lighter applications where the forces are not as intense.

  • Axial Load: Plain bearings can support moderate axial loads, but not as high as those handled by swing bearings.
  • Radial Load: They can handle radial loads effectively in smaller applications.
  • Tilting Moments: Plain bearings have limited capacity to withstand tilting moments, making them less suitable for applications with high rotational forces.

Speed Difference

The operating speed of swing bearings is typically very low, usually less than 10 revolutions per minute (rpm). Additionally, swing bearings often do not rotate continuously but rather operate within a specific angle, corresponding to the so-called “swing arm bearing.”

  • Low Speed: Usually operates at speeds less than 10 rpm.
  • Swing Motion: Often rotates within a limited angle rather than continuously.
  • Alkalmazások: Ideal for applications where low-speed, high-load rotation is required, such as cranes and excavators.

Sima csapágyak

Plain bearings can operate at much higher speeds compared to swing bearings. Their simple design allows them to handle continuous and high-speed rotation efficiently.

  • High Speed: Capable of operating at high speeds, often exceeding several thousand rpm.
  • Continuous Rotation: Suitable for applications requiring continuous and smooth rotation.
  • Alkalmazások: Commonly used in automotive engines, electric motors, and other high-speed machinery.

Manufacturing Process

Forgócsapágy

The manufacturing process for swing bearing is complex and involves high precision and advanced techniques. The materials and workmanship required for swing bearings are specialized to ensure durability and reliability under heavy loads.

  • Precision Engineering: Involves high-precision machining and assembly to achieve the required tolerances and performance.
  • Materials: Uses high-strength materials such as alloy steels and specialized coatings to enhance durability and load capacity.
  • Advanced Techniques: Employs advanced manufacturing techniques such as heat treatment, surface finishing, and precise assembly to ensure optimal performance.

Sima csapágyak

Plain bearings have a simpler manufacturing process compared to swing bearings. They are made from various materials, including metals, polymers, and composites, depending on the application requirements.

  • Simple Manufacturing: Involves basic machining and forming processes to produce the desired shape and dimensions.
  • Materials: Uses a variety of materials, including bronze, brass, plastic, and composites, tailored to specific applications.
  • Cost-Effective: The simpler manufacturing process makes plain bearings more cost-effective and easier to produce in large quantities.

Sealing Devices

Forgócsapágy

Swing bearings are usually equipped with teeth for rotational drive and seals to keep out dust and contaminants. These sealing devices are essential for maintaining the cleanliness and longevity of the bearing.

  • Teeth for Drive: Equipped with teeth that facilitate rotational drive, ensuring precise and controlled movement.
  • Seals: Uses advanced sealing mechanisms to prevent dust, dirt, and moisture from entering the bearing, protecting the internal components.
  • Maintenance: Requires regular inspection and maintenance of the seals to ensure their effectiveness and prevent contamination.

Sima csapágyak

Plain bearings may also incorporate sealing devices, but they are generally simpler compared to those used in swing bearings. The seals in plain bearings are designed to keep lubrication in place and prevent contaminants from entering.

  • Basic Seals: Uses simple seals to retain lubrication and prevent contamination.
  • Kenés: Relies on consistent lubrication to maintain smooth operation and reduce wear.
  • Maintenance: Regular lubrication and inspection of the seals are necessary to ensure the bearing’s longevity and performance.

Következtetés

In summary, swing bearings and plain bearings differ significantly in various aspects, including installation methods, size, structure, load capacity, operating speed, manufacturing process, and sealing devices. Swing bearings are designed for heavy-duty applications requiring large size, high load capacity, and low-speed rotation. They are complex in design and manufacturing, with advanced sealing mechanisms to ensure durability and reliability.

On the other hand, plain bearings are simpler and smaller, suitable for high-speed, low-load applications. Their straightforward design and manufacturing process make them cost-effective and easy to produce. Understanding these differences can help in selecting the right bearing for specific mechanical systems, ensuring optimal performance and longevity.

2. Advantages of swing bearing

1. Könnyen feldolgozható, érzékeny, alacsony forgási ellenállás.

2. Kompakt szerkezet, kis külső méretekkel (főleg magasság).

3. Könnyű karbantartás és hosszú élettartam.

4. Lánckerekekből, tömítésekből, csavarokból stb. áll, könnyen telepíthető és professzionális termelési központosítás.

5. Nincs köztes forgáspont, a résbe más alkatrészek is beépíthetők.

Do you understand the difference between swing bearings and plain bearings? NATIONAL slewing bearings are used in a variety of applications, mainly in lifting machinery (truck cranes, tower cranes, etc. ), construction machinery (excavators, loaders, etc. ), transportation machinery, etc. Of course, the same applies to kotrógép lengőcsapágy. Többféle modellt kínálunk, hogy tökéletesen illeszkedjen az Ön gépéhez.

lengőcsapágyak
lengőcsapágyak

Some models of kotrógép lengőcsapágyak for reference

modell CikkszámmodellCikkszámmodell Cikkszámmodell Cikkszámmodell Cikkszám modellCikkszám
CAT 307  102-6377CAT 325C227-6087 PC15  20M-25-81201PC240-8206-25-00301EX60-24193433ZX230   9154037
CAT 307C  240-8361CAT 325199-4483PC18 20M-25-81201PC270  206-25-00400EX60WD -24193433ZX230   9159646
CAT 308C  240-8362CAT 3254178151PC75UU-2  201-25-61100PC290  206-25-00400EX60-543767553ZX2409196732
CAT 312CL 229-1077CAT 3253530676PC100-6203-25-62100PC300207-25-31112EX1009098995ZX240  9245728
CAT 311   231-6853CAT 3252316854PC110R 206-25-11100PC300-3 207-25-00022EX100-39102726EX300-3   9112188
CAT 312B   616411CAT 325CL 199-4475PC120-5  203-25-51200PC300-6  207-25-61100ZX1359184497ZX330LC-5G9245698
CAT 312CL 229-1077CAT 326353-0649PC120-6Z 203-25-61100PC300-7  207-25-61100EX150-59146953ZX350-3 9245698
CAT 312C229-1077CAT 329D     227-6087PC120-6203-25-62100 PC300-7     207-25-61700EX2009098993ZX370 9166468
CAT 315 148-4568CAT 330 7Y0933PC130-6       203-25-62100PC300LC-5   207-25-51100ZX200LC-5G9260971 ZX3709169894
CAT 318B 148-4568CAT 330  1994559PC130-7    SAA4D95LPC300LC-6   207-25-61100ZX200-3,9260971 KH180-3  9099074
CAT M315 M318145-4809CAT 330 353-0487PC150LCK-6  21P-25-K1100PC300LC-7   207-25-61100EX200-3 9148123HE6010B1214DBS110T
CAT 315C  229-1080CAT 330B  231-6859PC160-6K 21P-25-K1100PC300-8207-25-61100ZX200 9196732EX400164-2568
CAT 319C 227-6079CAT 330B  114-1434PC160-7   21K-25-00101PC300-8  207-25-00121ZX200-5G9260971EX400-5 9129521
CAT320B 1141414CAT 330D227-6089 PC200  205-25-00015PC340  207-25-61200EX200  9102727ZX450 9129521
CAT320BL  121-8222CAT 330C 227-6089 PC210NlC-7K   20Y-25-00301PC380LC-6K207-25-61200EX210-5 9102727ZX450-3      9247287
CAT 320 7Y1565CAT330D/DL227-6090PC200-520Y-25-11103PC400-7208-25-61100ZX210LCK  9169646ZX450-39247287
CAT 320B     114-1505CAT 336D  353-0489PC200-8  206-25-00200PC400LC-5    208-25-52101ZX210W-1 9275368ZX470-3 9247287
CAT 320BL  177-7723CAT 336DL        227-6089 PC200-6     20Y-25-20200    PC400LC-5   208-25-52100ZX2209262248ZX650  9321213
CAT 320BL   114-1341CAT 336DL  353-0680  PC200-6Z  20Y-25-22200PC400LC-5   208-25-52101EX220-1  9154037ZX650LCH 6016584
CAT 320C227-6081CAT 336D  353-0490PC200-6    S6D102-1PC400LC-5   208-25-A2100ZX225USR9169646ZX800LD   9229741
CAT 320C227-6147CAT 345  227-6052PC200-7   20Y-25-21200PC400LC-6   208-25-61100ZX225US 9196732ZX870-39321216
CAT 320C171-9425CAT 345B    136-2969PC220-7    120Y-25-21300PC400  208-25-61100ZX330-3LC9260971ZX8706023643
CAT 320D227-6082CAT 345B     200-3645PC200LC-720Y-25-21200PC450LC-6K 208-25-61100EX270-59154037  
CAT 320L7Y1563CAT 345BII  227-6094PC220   205-25-00022PC450-8208-25-71230R110-7  81N3-01022 BGR250/260 81EN-00051
CAT 320L7Y1563 CAT 345BL   136-2970PC220LC-6LE    20Y-25-A1101PC450-8207-25-31180R140LC-7  81N4-01020R250LC-78
CAT 2258K4127CAT 345BL   169-5536/169-5537PC220-6 20Y-25-21200PC450-8208-25-61100 R160LC-7     81EM-00020290LC-7  81N8-0003
CAT 322C  221-6764CAT 345DL 227-6037PC220-6 20Y-25-21100PC600-7  21M-25-11100R160LC-7  81EM-00021R290/30081N8-00021
CAT 324D   227-6085CAT 345ECL  227-6052PC220-7 206-25-00301 pc600-721M-25-11102R170W-781EM-00021R290 81N8-00022
CAT 325 7Y0745CAT 349D 353-0490PC220-8 206-25-00320PC600LC-6  21M-25-11100R180W-9S81EM-00021GGR290LC 7A4921797
CAT 350  1026392CAT374 333-3009PC220LC-8  206-25-00301PC600LC-8      21M-25-11101R200W-781EM-00021GGR290LC-7   81N8-00023
CAT 365C  199-4565CAT374 367-8361PC228US-322U-25-00201PC750   209-25-71100 R210-7   81N6-00023BGR290LC-7A81N8-00024GG
CAT 365C 227-6096CAT 385C199-4491PC228 22U-25-00210PC800LC-8 209-25-00102R210LC-7  81N6-01020R320/33081N9-01020
CAT 365C 227-6097CAT 385C227-6099PC228 22U-25-00220PC800-6 209-25-00101R210-7   81N6-00022R320LC-7   81N9-01021
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