Schaeffler North America


Product catalogue with selection and information system

Mechanical extractors

FAG Mechanical two-arm extractors


FAG Special extractor


FAG Mounting Manager

Mounting instructions for rolling bearings with tapered bore

FAG Mounting Manager

Mechanical tools

Mechanical extractors

Mechanical extractors can be used to dismantle small and medium sized rolling bearings that are located with a tight fit on a shaft or in a housing. The bearing can be dismantled without damage if the extractor is in contact with the tightly fitted bearing ring. In the case of mechanical extractors, the extraction force is normally applied by means of threaded spindles. In addition to the two-arm and three-arm devices as well as a hydraulic pressure tool, special solutions are also possible.
For dismounting of larger bearings, hydraulic extractors should be used.


Two-arm and three-arm extractors
Two-arm and three-arm extractors are used for the extraction of complete rolling bearings or tightly fitted inner rings.
The two-arm extractor PULLER-2ARM and three-arm extractor PULLER-3ARM can also be used to extract other parts such as gears.


Hydraulic pressure tool
The pressure tool PULLER-SUPPORT is used to loosen tightly fitted parts in conjunction with mechanical extractors. It is applied between the shaft end and extractor spindle. The spindle diameter of the extractor must not be less than the stated minimum value. The maximum torque must be observed.


Special bearing extractors
Special bearing extractors PULLER-SPECIAL can be used to dismount radial bearings of the following types: deep groove ball bearings, self-aligning ball bearings, cylindrical roller, tapered roller and spherical roller bearings (inner rings only), angular contact and four point contact bearings. The special bearing extractor comprises the base device and a collet. When the base device is progressively screwed down, this closes the collet and clamps it against the inner ring. The base device is available in four sizes. The collet must be specifically ordered to match the bearing. Large collets are operated using hydraulic cylinders; these collets are available by agreement.


Internal extractor sets
The internal extractor set PULLER-BORE can be used for the dismounting of small deep groove and angular contact ball bearings where the outer ring has a tight fit. The inner ring bore must be easily accessible. The internal extractors can also be ordered individually. The internal extractor set PULLER-INTERNAL can be used for the dismounting of standard deep groove ball bearings where the outer ring has a tight fit. It is not necessary to dismount the shaft. Internal extractors, countersupports and impact extractors can also be ordered individually.