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Саморавни куглични лежај

Самопоравнавајући куглични лежај

Самоподешавајући куглични лежајеви су куглични лежајеви са два реда куглица (зване „трке“). Унутрашњи прстен има два пута, а спољни прстен има сферни прстен чији се центар закривљености поклапа са осом лежаја. На овај начин, оса унутрашњег круга, кугле и кавеза могу се скретати око центра лежаја, чиме се аутоматски исправља неусклађеност узрокована грешкама у машинској обради или уградњи лежишта лежаја и осовине.

Доступни су за отварање или запечаћење. Лежајеви су неосетљиви на угаоно одступање осовине у односу на кућиште.

Врсте самопоравнавајућих кугличних лежајева:

Самоподешавајући куглични лежајеви могу да обезбеде различите величине, материјале и типове у складу са потребама потрошача, укључујући посебне индустријске употребе, као што су апликације на високим температурама.

Имају три главна самопоравнавајућа куглична лежаја: Самоподешавајући куглични лежајеви отвореног типа, Запечаћени самоподешавајући куглични лежајеви и Самопоравнавајући куглични лежајеви са продуженим унутрашњим прстеном. У зависности од примене, такође се могу израдити у различитим величинама и оптерећењима, од минијатурних кугличних лежајева за мала оптерећења и трим компоненти до великих самоподешавајућих кугличних лежајева.

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Self-aligning Ball Bearings Construction

Self-aligning ball bearings consist of an outer ring, an inner ring, rolling elements, a cage to house the rolling elements, and seals that protect the balls from contaminants and other dirt. Due to their design, these elements make it possible for self-aligning bearings to counteract any static or dynamic misalignment of a shaft and housing assembly up to 3°. They also generate far less heat than other bearings due to the ниско трење within the bearing, allowing them to run cooler than other bearings at higher speeds.

  • Outer Ring: The outer ring of the bearings has a smooth spherical shape without raceways. The shape of the outer ring allows for slight movement within the bearing, which in turn allows the bearing to self-align.
  • Унутрашњи прстен: The inner ring of the self-aligning bearing has two raceways that keep the balls and cage in place.
  • Rolling elements and cage: The rolling elements on self-aligning ball bearings are kept in place by the cage and the inner ring. As there is a loose configuration between the balls and the inner and outer ring, friction and frictional heat are very low. The cage is typically stamped steel, PA66, reinforced glass fiber, or machined brass.
  • Печат: A sealed self-aligning ball bearing ensures dirt and other contaminants don’t affect the bearing rolling elements.

Self Aligning Ball Bearing Advantages

  • Accommodate static and dynamic misalignment
    The bearings are self-aligning like spherical roller bearings.
  • Excellent high-speed performance
    Self-aligning ball bearings generate less friction than any other type of rolling bearing, which enables them to run cooler even at high speeds.
  • Минимално одржавање
    Because of low heat generation, the bearing temperature is lower, leading to extended bearing life and maintenance intervals.
  • Ниско трење
    Very loose conformity between balls and outer ring keeps friction and frictional heat at low levels.
  • Excellent light load performance
    Self-aligning ball bearings have low minimum load requirements.
  • Низак ниво буке
    Self-aligning ball bearings can reduce noise and vibration levels, for example, in fans.
Self Aligning Ball Bearing Advantages
Self Aligning Ball Bearing Disadvantages

Self Aligning Ball Bearing Disadvantages

  • Load-types: The ball bearings on self-aligning ball bearings are mounted at a relatively straight angle between the inner and outer ring. This means that the load types the bearing can handle is radial, with little axial load carrying capacity.
  • Load-amount: As ball bearings have a small point of load-bearing contact, the amount of load this type of bearing can handle is relatively small.

Installing a Self-aligning Ball Bearing on the Adapter Sleeve

    1. Bearings often come with a protective film that protects the components from outside influences during transport. Make sure to remove this film before mounting the bearing
    2. Oil the exterior surface of the bearing with oil or grease.
    3. Apply oil to the adapter.
    4. Open the adapter slightly with the help of a screwdriver and slide it in place on the shaft.
    5. Once the adapter is in the correct position, position the bearing on the adapter sleeve. If the shaft has threads, it will help to use a nut to bring the bearing in the correct place; if not, use a bearing pusher kit or a small mallet.
    6. Once the bearing is in place, test the rotation of the bearing on the outer ring. It should be able to rotate freely, but not swivel.
    7. Lock the bearing in place with a locking washer by first removing the nut, placing the washer in place, and putting the nut back again.
Note: If the adapter sleeve is loose or not properly secured in place, the inner ring can start turning on the adapter sleeve. This causes excessive friction between the three components and can damage the shaft, adapter, and bearing.

Self Aligning Ball Bearing Application

Given the benefits of the self-aligning ball bearing, there are several industries that can use them, including:

• Textile

• Mining

• Heavy machinery

• Power machinery

• Agricultural

If you’re dealing with issues like misalignment in your applications, it can be difficult to operate efficiently. Self-aligning ball bearings can help you with that problems. 

China Self Aligning Ball Bearing Manufacturer

We can provide you with several different series of self-aligning ball bearings, with each style allowing for specific degrees of misalignment and load ratings. Email us or contact us online today to learn more about how self-aligning ball bearings, or one of our other options, can help you.