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

Versatile

Large stock

Long service life

Preloading system

Technical specifications & more info

Technical specifications

Body material	Cast iron Steel Stainless steel
Component material	Steel lever Steel or aluminium pins Polyethylene blocks and wheels Steel crowns and bearings Steel sprockets Polyamide PA6+MoS roller Greased bearings
Treatments	Oven-painted Galvanized nuts and screws Galvanized preloading system Galvanized lever Nickel-plated Zinc-plated Anti-corrosive Oxidation-resistant
Operating temperature	-40°C to +80°C

Variations

Type	Elastic 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

Supports

Double arm

Pre-loading

Contrast ring

Polyethylene sliding block

Polyethylene wheel set

Idler sprocket

Idler sprocket with ballbearing

Polyamid roller

Galvanized steel roller

Pulley

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