T: +49 5971 798 - 0

Torque limiter by KTR Systems

Torque limiters / overload couplings

Torque limiters (overload couplings) are vital components in the drive train. They help to avoid longer downtimes and expensive repairs along with the resulting costs. In case of overload resulting from a breakdown in the operation of the plant, the torque-limiting systems (torque limiters) uncouple driving and driven side while protecting the drive train from larger damages. That is why they are mostly referred to as safety couplings.

Overload couplings operate following various operating principles: 

The frictionally engaged, load-holding torque limiters (RUFLEX) and the positive-locking, load-separating ball engagement couplings (e. g. SYNTEX and KTR-SI).

Our range of torque limiters (overload couplings) includes torque limiters (RUFLEX), overload couplings (KTR-SI) and backlash-free safetycouplings (SYNTEX, SYNTEX-NC and KTR-SI Compact).


Our torque limiters are used in manifold applications and have excellently proven as an overload coupling, torque limiter or safety coupling.


Product requestCatalogue

Our torque limiters:

Torque limiters RUFLEX by KTR Systems GmbH

RUFLEX® Torque limiter

RUFLEX torque limiters are load-holding, frictionally engaged torque limiters. The construction kit system of the RUFLEX

Show product
Overload systems KTR-SI by KTR Systems GmbH

KTR-SI overload couplings

KTR-SI overload couplings are available in various types of engagement. Automatic engagement as well as load-separating,

Show product
Backlash-free overload systems KTR-SI Compact by KTR Systems GmbH

Backlash-free safety couplings

Our safety couplings are based on a positive-locking ball engagement principle allowing for high repeatability and short

Show product