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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Thanks to its reliability and low cost a belt used to transmit motion is an essential element in the design of mechanisms. BINDER magnetic timing belts are made of high-strength polymers and tension members which lend them mechanical properties that enable them to be adapted to all industrial applications.
Several factors play a role in tiking choice of belt, such as tooth profile, tension members, material, and field of application. These elements are described in this chapter. 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.
These values are shown in the diagrams for each timing belt type on the pages for each belt. A timing belt is correctly dimensioned if the force transmittable by the teeth is not exceeded. The working load can be distributed better bdeco more teeth in mesh in the toothed pulley. The following maximum numbers of teeth must be used for the calculations:. It is still used to transport and convey light loads thanks to small wrap diameters. If has tiking synchronisation and positioning precision.
It can combine positioning precision and zero giming with reversal of direction. The formula for determining the width does not take account a safety factor. Basically, if the width calculation has been made with perfectly brlt peak torques, there is no reason to provide for it.
Import Data and Price of breco timing belt under HS Code | Zauba
A verification of the tension member resistance must also be performed. Other parameters such as braking torque, dynamic irregularities and inertias are necessary for determination purposes:. The brec belt is correctly dimensioned if the maximum allowable value of the tension member tension is not exceeded.
The values shown in the tables for F N correspond to a constant load limit on the tension members. Drive configuration with contra-flexure.
To guarantee correct operation, we recommend a minimum number of teeth and a minimum wrap diameter to suit the belt type. The purpose of the pre-tension force F pt is bel guarantee a minimum tension during operation on the slack side in order to ensure that the teeth mesh correctly on the pulleys.
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. The bearings must be dimensioned to support F w.
It is essential to apply adequate pre-tension to the belt so that it does not deteriorate prematurely. This belt is partly made of eco-friendly polyurethane that comes from original renewable materials.
Technical informations of synchronous transmissions
Each type of belt has tension members which give its well defined mechanical characteristics. Thanks to this the belts maintain an elasticity without elongation. A tension member is comparable to a spring subjected to strain deformation. Standard PU belts are reinforced by galvanised steel tension members. These tension members enable the belts to maintain their longitudinal breo.
This law describes deformations under load in the elasticity phase. The value of the force F N maximum permissible nominal force is specified for each pitch on the profile pages.
Elongation of the belt is proportional to the force timint to the wire.
For E high-flexibility tension members the section is distributed to a much higher number of finer wires, reducing the bending stresses accordingly. The advantage offered by the E tension member is better bending strength. Timing belts with E tension members must preferably be used for multiple-pulley drives or where the contraflexures timijg more frequent.
It is not suited to dynamic stress. The use of these last three special tension brec lends belts different mechanical and elastic characteristics. We can advise you on choosing a specific variant.
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:. 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.
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 in the distribution of loads.
The noise level of a transmission depends on a number of parameters: Belt guidance is a fundamental element in the correct functioning of a transmission.
It is a question of obtaining minimum lateral forces and of reducing friction losses. In certain specific cases, for example for belts of large lengths or for vertical axes, it may be necessary to provide more than two flanged pulleys.
I n general all the lengths of the belt runs must be 4 times the width of the belt. The whole team thanks you of the trust you have renewed to him and wish you a happy new year. Thus we are in permanent relationship with OEMs to develop new products adapted and always more efficient.
These high quality German products bteco currently operating worldwide and have a long service life, however. Log In Lost your password?
Please enter your username or email address. You will receive a link to create a new password via email. Username or Email Address. Technical informations of synchronous transmissions Timing belts Thanks to its reliability and low cost a belt used to bel motion is an essential element in the design of mechanisms. The following maximum numbers of teeth must be used for the calculations: Different types of profiles are available based on the belt selected: Other parameters such as braking torque, dynamic irregularities and inertias are necessary for determination purposes: Braking can possibly exceed the load resulting from nominal utilisation or starting conditions.
Oscillations and concentrated overloads can be added to the nominal load applied to the tensioned span. Centrifugal masses or rotating masses generally influence the regularity of the drive. Breck elements must be taken into belh if the centrifugal masses apply a supplementary load to the belt. Drive configuration without contra-flexure Drive configuration with contra-flexure To guarantee correct timint, we recommend a minimum number of teeth and a minimum wrap diameter to suit the belt type.
Breco timing belts
Consequences of incorrectly set pre-tension: Overloading of the bearings, Reduced transmittable power, Excessive noise, Possible axial misalignment, Premature tooth wear. These polyurethanes cannot be used for all the belt types contact us for further details.
Monofilar one tension member per belt: It has been brceo to increase the number of tension members on the latter belts. Various service parameters must be observed in order to transmit a torque under good conditions with regard to service life, bel level, bearing load, and backlash: 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.
A ttend in particular to the brfco of the pulleys and to the length of the runs preceding the guidance of the belts.
The economic aspect must be taken into account, since flanges are more cost-effective for small pulleys than for big pulleys. G uidance of the belts can be effected on one or more rollers. When a flanged tension roller is used it must be positioned in such a way as to obtain a belt run that is as long as possible before the guidance the tension roller must preferably be positioned on the slack side.
If the direction of rotation changes, the tension roller must preferably be positioned in the middle of the belt run. Avoid runs that are too short before the guidance and this to avoid a lateral load on the belt.
It is recommended to use belts with bifilar tension members to limit the loads on the flanges. Alignment The alignment error must not be greater than the value: Pulleys with a large number timong teeth engaged. Little elongation of the moving belt, brrco is going to engage in the glued or clamped betl. Fixed motor and permanently rotating belt. The belt is stopped in its rotation by a brake, this induces the linear motion in one direction.
The return motion is effected by an external linear force. These high quality German products are currently operating worldwide and have a long timiing life, however See more.
Breco timing belts
Reset Password Lost your password? This is achieved by an opposed-twist arrangement which enables it to limit the belt pressure on the belf, resulting in improved efficiency and reduced wear on the faces. For multiple shafts, where there is one direction of rotation, it is sufficient to flange-mount two pulleys a and b. The alignment error must not be greater than the value: Toothed rack secured flat on a base glueing or clamping.