BRECO® timing belts are used in applications such as industrial robots, racking systems, cutting and drawing plotters and in handling systems. The BRECOFLEXmove timing belt allows the design of belt drives that are 30% more compact. Depending on the pulley diameter, considerable costs can be. The name BRECO became the synonym for polyurethane timing belts resulting The BRECO® and BRECOFLEX® timing belts, the pulleys designed to match.

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The alignment error must not be greater than the value: These values are shown in the diagrams for each timing belt type on the brwco for each belt. Elongation of the belt is proportional to the force applied to the wire.

Consequences of incorrectly set pre-tension: The purpose of the pre-tension force F pt is to guarantee a minimum tension during operation on the slack side in order to ensure that the teeth mesh correctly on the pulleys. The following maximum numbers of teeth must be used for the calculations:.

Overloading of the bearings, Reduced transmittable power, Excessive noise, Possible axial misalignment, Premature tooth wear. The force transmittable by the teeth depends on the rotational speed and on the maximum load value that each tooth can transmit in continuous operation. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.

Products Calculation Enquiry Search Login. Clean surrounding area — Ambient temperature Good pulley quality — Observance of minimum diameters Good pre-tension Fitting with a fixed centre distance necessitates belts with a more exacting length tolerance and with more precise machining it is essential to consult our technical department.

Breco, Brecoflex, Synchroflex Timing Belts – Bervina

You can adjust all of your cookie settings by navigating the tabs on the left hand side. The return motion is effected by an external linear force. Thanks to this the belts maintain an elasticity timinng elongation.


The economic aspect must be taken into account, since flanges are more cost-effective for small pulleys than for big pulleys. It has security vulnerabilities and may not display all features on this site and other sites. It is not suited to dynamic stress.

A ttend in particular to the alignment of the pulleys and to the length of the runs preceding the guidance of the belts. Different types of profiles are available based on the belt selected: The flight shape for the products to be transported and for the individual transport purpose can be freely designed according to customer requests within the framework of our production possibilities.

Braking can possibly exceed the load resulting from nominal utilisation or starting conditions. The pre-tension force to be applied to the run depends on the maximum tangential force F Nthe belt length L B number of teeth Z B and the drive configuration.

It is still used to transport and convey light loads thanks to small wrap diameters. Various service parameters must be observed in order to transmit a torque under good conditions with regard to service life, noise level, bearing load, and backlash:. Powered by GDPR plugin. Fixed motor and permanently rotating belt. Little elongation of the moving belt, wich is going to engage in the glued or clamped belt. The timing belt is correctly dimensioned if the maximum allowable value of the tension member tension is not exceeded.

A verification of the tension member resistance must also be performed. It is recommended to use belts with bifilar tension members to limit the loads on the flanges. A timing belt is correctly dimensioned if the force transmittable by the teeth is not exceeded.

For assistance please contact our technical specialist! Your browser is out of date.

Technical informations of synchronous transmissions

Additionally, bredo conjunction with a tooth side facing with polyamide the timing belt has a low coefficient of friction in the bed plate area. Drive configuration with contra-flexure.

The working load can be distributed better by more teeth in mesh in the toothed pulley. Other parameters such as braking torque, dynamic irregularities and inertias are necessary for determination purposes: Next to our own brand we distribute timing belts with the very best quality from other manufacturers as well.


For whatever transport purpose the flighted timing belt is to be used – the back of the belt can be equipped with any number and order of welded-on flights. The values shown in the tables for F N correspond to a constant load bgeco on the tension members. Standard PU belts are reinforced by galvanised steel tension members. Avoid runs that are too short before the guidance and this to avoid a lateral load on the belt.

Timig formula for determining the width does not take account a safety factor. An axial misalignment of the pulleys generates a force of lateral pressure by the belt on the flanges which causes wear of the belt face and an imbalance yiming the distribution of loads. G uidance of the belts can be effected on one or more rollers.

It has been possible to increase the number of tension members on the latter belts. The value of the force F N maximum permissible nominal force is specified for each pitch on the profile pages. Adhere to the design regulations according to the “Design features”. The belt is stopped in its rotation by a brake, this induces the linear motion in one direction.

This is achieved by an opposed-twist tkming which enables it to limit the belt pressure on the flanges, resulting in improved efficiency and reduced wear on the faces. Pulleys with a large number of teeth engaged. These high quality German products are currently operating worldwide and have a long service life, however. Thanks to its reliability and low cost a belt used to bdeco motion is an essential element in the design of mechanisms.