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Automatic Rotation - CRESA

High Quality Products

Tecnidea CRESA Serie – Automatic Chain or Belt Rotation Tighteners

Maintenance-free tensioning of belts and chains. The CRESA-series is a line of automatic chain or belt tighteners that work in rotation and use the elastic deformation of four natural rubber cylinders. The rubber parts are placed in the four cavities created by two square-section parts rotated at 45° to each other. The maximum angle of torsion that the lever can reach is ±30° from the rest position.

The CRESA base elements are manifold and can also be used as shock absorbers, decelerators or vibrating elements.

Automatic Rotation Chain Tensioners: features & benefits

Keeps the system always tensioned during operation
Recovers the stretching and constantly absorbs vibrations
Prevents wear, high noise, vibrations, tooth skipping and breakage of the chain
Available from stock and at short notice
Standard versions as well as many special versions available
Many interface kits: polyethylene sliding blocks, polyethylene pinions and rollers made of zinc plated steel or plastic
Also available with a preloading system to facilitate the installation operation
Optional switch for monitoring excessive chain lengthening or risk of chain breaking

No stretching


Large stock

Long service life

Preloading system

Technical specifications & more info

Technical specifications

Body materialCast iron
Stainless steel
Component materialSteel lever
Steel or aluminium pins
Polyethylene blocks and wheels
Steel crowns and bearings
Steel sprockets
Polyamide PA6+MoS roller
Greased bearings
Galvanized nuts and screws
Galvanized preloading system
Galvanized lever
Operating temperature-40°C to +80°C


TypeElastic elements for scrapers
Tensioning elements
Tensioning elements with front mounting
Tensioning elements with radial regulation of 360°
Tensioning elements with variable loading
Tensioning elements ANOX
Stainless steel tensioning elements

Optional features

Base-elastic elements

Electric travel-end switch

Inductive travel-end switch


Double arm


Contrast ring

Polyethylene sliding block

Polyethylene wheel set

Idler sprocket

Idler sprocket with ballbearing

Polyamid roller

Galvanized steel roller


Inquire availability

Repair & Maintenance

Is a current component or drive system in need of maintenance or repair? BEGE has extensive knowledge of a wide variety of drives and systems. We guarantee a rapid resumption of operational procedures.

Contact our support department

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