2.3 Intended use
Spieth locknuts are recognised state of the art. They have been designed to permanently retain pretension and/or
a position on a threaded spindle using frictional locking in the thread. Any other usage is regarded as improper
use.
Spieth-Maschinenelemente GmbH & Co. KG reserves the right to technical changes. In case of any questions or
technical issues, please contact Spieth-Maschinenelemente GmbH & Co. KG.
Caution!
Only expert personnel are allowed to choose, assemble, operate, and service Spieth locknuts.
Use Spieth locknuts only according to product-specific specifications. To ensure proper functioning of the Spieth
locknuts, it is mandatory to comply with the specifications of the connecting components. Detailed information
on the above items can be found in the Design Guide. Operating conditions, e.g. speeds and temperatures at
which the Spieth locknuts are used must not exceed common standards.
Caution!
The user assumes responsibility for proper spindle thread design, for ascertaining the pretension
required for the bearings to be locked, for determining the operating loads and meeting permissible
operating conditions. In case of any questions or technical issues, please contact Spieth-
Maschinenelemente GmbH & Co. KG.
In case operating conditions change, it is mandatory to check if the locknut is still suitable for further use.
Spieth locknuts need to be handled with care, assembled correctly, and used as intended to achieve their full
functional potential. Prior to working with our locknuts, please read these operating instructions carefully. In
particular, please follow all relevant safety notices.
Caution!
It is mandatory to comply with the instructions for use and the general safety notices!
Handle locknuts with care before and during assembly and assemble them according to these
operating instructions. Use only stipulated tools for assembling locknuts.
Incorrect handling or the use of inadequate aids can severely limit, damage, or destroy the machine
element and/or the machine in its functionality.
Spieth locknuts are not meant to be repaired; if repairs are necessary in exceptional cases, only the manufacturer
is allowed to perform them.
3Delivery Contents and Storage of Spieth Locknuts
3.1 Delivery contents of the Spieth Locknuts
Spieth MSF series locknuts have been treated with a preservative. Within the component's packaging bag, a VCI
atmosphere is created provided additional corrosion protection for a certain length of time. Opening the cover or
