(3/4" to 1-3/16") Kukko 21-4 Internal Bearing Extractor

Kukko Quality Tools

  • $116.60
    Unit price per 

For extracting inner bearings, bearing outer rings and bushings.

Pulls Bore Range:
20mm - 30mm
3/4" to 1-3/16"

Product Data Sheet

Recommended to be used with (not included):
Counterstays - 22-1 or 22-2
Slide Hammer - 22-0

Available in Multi-Extractor Set - K-22-A

Available with Slide Hammer - K-21-4/22-0

View all Internal Extractors


  • The 2-shell design with extra large grasp edges ensures safe extraction.
  • The internal extractors are equipped with an internal safety stop to protect against excess spreading and overloading.
  • Mechanical pressure screw.


  • KUKKO internal extractors can be combined with counter supports (22-1 or 22-2) and slide hammer (22-0).
  • When combined with the internal extractors, extensions from series 21-V enable deeper bearings to be extracted.
  • Spare parts are available for internal extractor sizes 21-89 and 21-90.

How it works

  • Place the internal extractor into the bearing's hole.
  • Using a ring spanner, tighten the nuts to open the jaws of the internal extractor. Make sure that the jaws sit securely below the bearing's inner race.
  • For removal, the spindle on the counter support series 22 or on the slide hammer series 22-0 is screwed onto the key spindle on the internal extractor.
  • Counter support:
  • 2. The counter support's arms must not block the part due to be removed. Make sure that the arms are parallel.

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