Product family

JFK Fastening Systems

Reliable locking and precision positioning for every mechanical component

The wide range of JFK Group precision mechanical components includes fastening systems such as retaining rings, locknuts, screws, and fasteners. These essential components are widely used across numerous industrial sectors, including drive systems, motors, machine tools, automotive, and industrial equipment, where reliable fastening, precision positioning, and long service life are required.

Rings, locknuts and screws: verified quality on every component, with availability and technical support guaranteed at every stage of the project.

Guida tecnica

Fastening systems: function and selection criteria

Mechanical fastening systems, also known as fastening elements or locking systems, are used to secure, position, and retain components such as bearings, gears, and pulleys on shafts and in housings, preventing axial movement under load or vibration. The choice of the right fastening system depends on the type of mounting surface (threaded or smooth with a groove), the level of precision required, the presence of vibration or dynamic loads, and the expected frequency of installation and removal. Within JFK Group's range of mechanical fastening systems, Datus specializes specifically in standard screws and fasteners, while the other solutions are supplied as part of JFK Group's precision mechanical component range.

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SELECTION GUIDE

Things to consider before making a choice

The choice between the different fastening system families depends primarily on the type of mounting surface available: a threaded shaft requires a locknut, a smooth shaft with a groove requires a retaining ring, while eliminating axial clearance in a bearing requires a compensation ring.

This is complemented by an assessment of the operating conditions: where significant vibration or dynamic loads are present, self-locking solutions are preferred; where high positioning accuracy is required, dedicated components such as KMT precision locknuts are the ideal choice; for standard screws and fasteners, the Datus range covers all general assembly requirements.

Solutions

Find the right solution for your application

Do you need to eliminate axial clearance when mounting a bearing?

When the correct preload of a ball bearing must be ensured by eliminating axial clearance and reducing noise and vibration, spring steel compensation rings are the dedicated solution.

Suitable product families

JFK compensation rings

Do you need to axially secure a component on a shaft or in a bore?

For quick and secure locking of bearings, gears, and pulleys in external shaft grooves or internal bore grooves, Seeger retaining rings (snap rings) allow fast installation and removal using dedicated pliers.

Suitable product families

JFK Seeger retaining rings

Do you need to secure a component to a threaded shaft?

Locknuts are the ideal solution for axial securing on threaded shafts: KM locknuts for standard applications, KMT and KMTA precision locknuts for high-precision positioning without a locking washer, and GUK and GUP self-locking locknuts for applications involving vibration or dynamic loads.

Suitable product families

JFK locknuts

Do you need screws or fasteners for general assembly?

For general threaded fastening of structures and machinery, JFK Group distributes a complete range of screws, nuts, washers, bolts, and other fasteners through its Datus company, in accordance with metric and international standards. Screws Nuts and washers Bolts and studs

Suitable product families