Preparation

Notice

Use TPU-compatible lubricants

Do not use lubricating pastes, other high-pressure additives or oils and greases containing molybdenum disulphide. Use Vaseline, for example.
The use of unsuitable lubricants can lead to incompatibility with the elastomer ring and impair the functionality.

Preparation 1:

Facilitated assembly

The bores in the coupling hub have an H7 fit.
Beckhoff recommends play of 0.1 – 0.5 mm between the coupling hub and the shaft.

The fitting tolerance and the oiling of the shaft journals simplify the assembly and disassembly of the coupling.

Check the shaft connection dimensions and the tolerances. Make sure that the shafts to be connected and bores in the hub are clean and free from burrs. Adhere to the fitting tolerance and oil the shaft journals prior to assembly.

When pushing the coupling hubs together, the compressive prestressing of the elastomer ring requires an axial mounting force. The axial force can be reduced after cleaning the elastomer ring and by lightly oiling the contact surfaces.

Preparation 2:

Item number

Meaning

1

Spacing distance, see Technical data

2

Axial mounting force

3

Contact surfaces

Machining of pre-drilled coupling hubs

WARNING

Do not exceed the permissible bore diameter

Do not exceed the maximum permissible bore diameters specified in the Technical data.
If you exceed the maximum values, the coupling may break and parts may be ejected. Flying parts can lead to serious or even fatal injuries.

Adhere to the concentricity and axial run-out accuracies and do not clamp to the hub bridges.

For customer-specific special solutions and changes to the coupling hubs, contact our Applications Department. Beckhoff GmbH & Co. KG accepts no liability for unapproved, unauthorized conversions and modifications of the components.