extractor to remove bearings

Deep groove ball bearing with seals or shields

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.Integral sea

ling prolongs bearing service life

Simple, versatile and robust design

Low friction and high-speed capability

Accommodate radial and axial loads in both directions

Require little maintenance

Knowledge and introduction of bearings    :                                                                                                 

Extractors to remove bearings are essential tools used in maintenance and repair work, particularly when it comes to removing bearings from housings or shafts. Here's a detailed introduction to bearing extractors based on the provided search results:

Types of Bearing Extractors

1. Internal Bearing Puller Kits: These kits are designed for dismounting bearings from housings where the fit is on the outer ring. They are constructed for optimum strength and durability and suit a wide range of bearing bore diameters. A sliding hammer allows high impact forces to be applied and is ergonomically designed to enhance user safety. For instance, SKF offers TMIC series and TMIP series internal bearing puller kits, which are expandable and designed for applications with limited space to grip behind the bearing .

2. Mechanical Extractors: These are used for removing bearings with an interference fit on the shaft. They engage the inner ring of the bearing and apply a steady force to remove the bearing until the bore clears the entire length of the cylindrical seating .

3. Hydraulic Extractors: Larger bearings with an interference fit on the shaft often require considerable dismounting force, making hydraulic tools more suitable than mechanical ones. These tools use hydraulic pressure to facilitate the removal of the bearing .

4. Oil Injection Method: This method is particularly effective for dismounting inner rings from tapered shafts. It involves injecting oil into the bearing to create pressure that helps to push the bearing off the shaft .

Process of Removing Bearings

The process of removing bearings using extractors involves several steps:

• Preparation: Clean the external surfaces of the bearing unit and remove any rust or surface damage from the shaft extension with emery cloth .

• Positioning: Position the extractor or puller correctly, ensuring it engages with the inner ring of the bearing if removing from the shaft, or with the outer ring if removing from the housing .

• Application of Force: Apply steady force using the extractor. For mechanical extractors, this may involve striking the extractor with a hammer or using a wrench. For hydraulic extractors, hydraulic pressure is applied .

• Removal: Once the bearing has been sufficiently loosened, it can be removed from the shaft or housing .

Safety and Efficiency

Using the correct type of extractor for the job is crucial for both safety and efficiency. Applying force through the rolling elements of the bearing can damage the bearing and should be avoided . Extractors are designed to apply force in a way that minimizes the risk of damage to the bearing or the surrounding components.

In summary, extractors to remove bearings are specialized tools that make the process of bearing removal safer and more efficient. They come in various types to accommodate different bearing sizes, types of fits, and accessibility conditions. Proper use of these extractors ensures that bearings can be removed without causing damage to the bearings or the equipment they are part of.

For further details on this product please directly contact our sales department under shh@dmsw.com 

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