Schaeffler North America


Product catalogue with selection and information system

Hydraulic nuts

FAG Mounting Manager

Mounting instructions for rolling bearings with tapered bore

FAG Mounting Manager


Technical Product Information | 2017-11
Hydraulic Nut HYDNUT

Hydraulic tools

Hydraulic nuts

Hydraulic nuts HYDNUT, are used to press components with a tapered bore onto their tapered seat. Presses are mainly used if the drive-up forces required cannot be applied using other accessories, e.g. shaft nuts or pressure screws.

The main applications are as follows:

  • mounting and dismounting of rolling bearings with tapered bore.The bearings can be seated directly on a tapered shaft, an adapter sleeve or a withdrawal sleeve. The hydraulic nut can also be used for the dismounting of adapter or withdrawal sleeves.
  • mounting and dismounting of components such as couplings, gears and ships’ propellers.

Mounting / Dismounting:

Hydraulic mounting of a spherical roller bearing with a tapered bore. FAG Hydraulic nut, FAG Hydraulic unit.


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