BRECO-BRECOFLEX® TIMING BELTS
BRECO-BRECOFLEX® TIMING BELTS
The document provides a comprehensive overview of BRECO® and BRECOFLEX® timing belts, detailing their specifications, applications, and material properties. It highlights the mechanical and chemical properties, construction, and specific use cases of these timing belts.
The timing belts are characterized by positive fit, synchronous run, constant length, low noise, wear resistance, and high flexibility. They exhibit chemical resistance, including hydrolysis resistance and temperature resistance from -30°C to +80°C. Special materials are available for specific applications, such as in the food industry and extreme temperature conditions.
- AT Profile: Offers improved performance with larger tooth volume and stronger tension members for precise transmission and reduced backlash.
- BATK: Features self-tracking due to an integrated guiding track, suitable for linear and power transmission technology.
- DL Version: Double-sided belts for power transmission and transport technology, allowing multiple-shaft drives.
- ATP High Capacity Profile: Provides increased performance and noise reduction with a unique tooth design.
- ATN: Designed for transport technology with a flight fastening system for easy fitting and replacement.
- Standard Profile: Classical trapezoidal profile for standard drive tasks and high bending stress.
The belts are made from wear-resistant polyurethane and high tensile steel cord tension members, ensuring high span rigidity and no post-elongation. Various materials are detailed for different environmental conditions, such as low aggressive environments and high ambient temperatures.
The document provides guidance on the preferred use of different belt types, such as self-tracking belts for large lateral forces and standard profiles for standard drive tasks. Recommendations for belt guidance and pulley design are included to ensure optimal performance.
The document emphasizes the importance of selecting the right timing belt type and material for specific applications to achieve high performance, efficiency, and longevity. It encourages contacting distribution partners for further information on resistance and available materials.
The BATK timing belt is an evolution of the BAT timing belt, featuring a guiding track for self-guiding in both running directions. Key characteristics include increased tooth load due to the tooth curve, reduced running noise, higher power transmission precision, and lower vibration tendency. The BATK eliminates the need for flanges due to its integrated guiding track and uses high tensile steel cord tension members for length consistency.
BRECO® and BRECOFLEX® timing belts are made from TPUST1 material with steel cord tension members. They are available in various materials for different temperature ranges and applications, including food contact. BRECOFLEX® belts are manufactured in endless lengths without tension member interruption, suitable for high-speed applications up to 10000 min-1.
BRECOFLEX® timing belts are ideal for high-performance power transmissions, capable of operating continuously or with start-brake characteristics. They are available in standard and intermediate lengths up to 20000 mm. The StandardPlus version offers improved properties for high precision positioning applications, reducing lateral forces and improving pitch stability.
Various timing belts are available with different power transmission capabilities, rotational speeds, and peripheral speeds. For example, the T5 belt supports up to 5 kW at 10000 min-1, while the AT20 belt can handle over 200 kW at 6500 min-1. Applications range from office machinery to heavy construction equipment.
The document provides detailed specifications for different belt types, including power transmission limits, rotational speeds, and applications. It also includes data on tooth shear strength and flexibility, with specific belt tooth load bearing capacities outlined for various configurations.
The document provides detailed specifications and performance data for various models of BRECOFLEX® self-guiding timing belts, including BAT10, BAT15, BATK10, BATK15, SFAT10, SFAT15, and SFAT20. These belts are designed for specific industrial applications and are available in different materials and configurations.
Each belt model is characterized by its minimum number of teeth (zmin) and minimum diameter (dmin) for flexibility. The belts are available in standard lengths and can be customized upon request. The document lists the standard lengths and the number of teeth for each model.
The belts are made from various materials, including standard TPUST11, steel tension members, and stainless steel tension members. The availability of these materials varies by model, with some requiring a minimum purchase amount.
The document includes detailed tables showing the performance metrics of each belt model, such as rotational speed (R.p.m.), specific force (FUspec), specific torque (Mspec), and specific power (Pspec). These metrics are provided for different operating conditions, both with and without contra-flexure.
The document provides data on the specific belt tooth load-bearing capacity, which is crucial for determining the belt's durability and performance under load.
The flexibility of each belt is defined by the minimum number of teeth and minimum diameter. The document specifies these parameters for each model, indicating the conditions under which the belts can operate effectively.
The document suggests standard and intermediate lengths for each belt model and provides guidelines for ordering custom lengths. It also highlights the importance of selecting the appropriate material and configuration based on the specific application requirements.
BRECOFLEX® self-guiding timing belts offer a range of options for industrial applications, with detailed specifications and performance data provided to assist in selecting the right belt for specific needs. The document emphasizes the importance of understanding the flexibility, material options, and performance metrics to ensure optimal belt performance.
The document provides detailed specifications and options for BRECO® self-guiding timing belts, including various models such as BAT10, BAT15, BATK10, BATK15, SFAT10, SFAT20, and ATK5K6. These belts are available in different lengths, materials, and configurations to suit various industrial applications.
- Material and Construction: Standard material is TPUST11 with options for steel and stainless steel tension members. Specific models offer additional materials upon request.
- Available Lengths: Standard delivery lengths are rolls of 50 or 100 meters, with custom lengths available on request. Minimum joined lengths vary by model.
- Belt Widths: Available in various widths, typically ranging from 32 mm to 100 mm, depending on the model.
- Flexibility: Minimum number of teeth and minimum diameter specifications are provided for each model, indicating the flexibility and adaptability of the belts.
- Specific Tooth Force: Detailed tables provide specific tooth force values at various rotational speeds (R.P.M.), both with and without contra-flexure, for different tension member materials.
- Admissible Tension Cord Strength: The document lists the admissible tension cord strength (FTadm) and specific elasticity (Cspec) for both steel and stainless steel tension members.
- Customization: Options for customization include different belt colors (e.g., PAZ white, PAR green) and specific configurations (e.g., PAZ-PAR white-green).
- Availability: Some configurations are available on request, indicating a minimum purchase amount or special order requirements.
- Minimum Lengths: Joined belts have specific minimum lengths, which vary by model (e.g., 880 mm for BAT10, 960 mm for BAT15).
- Flexibility and Diameter: The document specifies the minimum number of teeth and diameters required for optimal performance, which is crucial for ensuring the belts' longevity and efficiency.
The document provides technical specifications for various BRECO® timing belts, including models ATK10K6, ATK10K13, ATK20K13, TK5K6, TK10K6, TK10K13, and TK1/2“K13. It details the materials, dimensions, and performance characteristics of these belts, focusing on their specific applications and mechanical properties.
Each belt model is described with its width (b [mm]), standard and joined lengths, and material composition. The belts are available in different widths and lengths, with options for customization upon request. The document specifies the standard material as TPUST11 with steel or stainless steel tension members.
The document outlines the admissible tension cord strength (FTadm), specific elasticity (Cspec), and belt weight for each model. It provides detailed tables showing the relationship between rotational speed (n [min-1]) and specific tooth force (N/cm) for different belt models, both with and without contra-flexure.
Minimum number of teeth (zmin) and minimum diameter (dmin) are specified for each belt model, indicating their flexibility and suitability for various applications. The document also lists the standard delivery lengths and the minimum length for joined belts.
The belts are available in standard lengths, with options for cutting to specific lengths or ordering lengths greater than the standard. Some materials and belt widths are available on request, indicating a degree of customization based on customer needs.
The document includes tables summarizing key data such as belt weight, admissible tension cord strength, and specific elasticity for both steel and stainless steel tension members. These tables provide a quick reference for comparing the performance and suitability of different belt models.
This document provides detailed technical specifications and guidelines for BRECO® and BRECOFLEX® timing belts, focusing on their application, specifications, and operational guidelines. It includes data on specific tooth force, belt weights, admissible tension, and elasticity for different belt types and configurations.
The document outlines the specifications for various timing belts, including the BRECO® T1/2" and T7/8" models. Key parameters such as belt width, specific tooth force, and admissible tension cord strength are detailed. The document also provides standard delivery lengths and options for custom lengths.
Instructions for the application of timing belts, including guidance on belt tension, alignment, and installation, are provided. The document emphasizes the importance of correct pitch matching and the use of flanges for belt guidance to prevent lateral wandering.
Safety factors and load limits are discussed, with recommendations for handling various operational conditions such as start-up characteristics, braking, and uneven loads. The document advises on the correct belt width to ensure operational reliability under different load conditions.
The document includes tables and charts with technical data on rotational speed (R.p.m.) and specific tooth force (Ftspec) for different belt configurations. It also provides examples of calculation for power transmission and transport technology, emphasizing the importance of considering moments of inertia and step-up transmissions.
Information on timing belt locks for specific belt types (AT10 DC and T10 DC) is included, highlighting their use in low-load drives and as emergency belts. The document specifies the material and dimensions of lock elements and provides ordering information.
The appendix covers additional topics such as belt guidance, tooth gap shapes, angular drives, safety factors, tolerances, and pre-tension force. It also includes a list of formulae and definitions relevant to the calculations and applications discussed.
The document provides detailed specifications for BRECOFLEX® and BRECO® timing belts, including length and width tolerances. Length tolerances are specified for various belt lengths, with specific tolerances for different belt types and pitches.
Guidelines for pre-tensioning are provided to ensure smooth operation and prevent issues such as tooth jumping. The document outlines the importance of setting the correct pre-tension force based on circumferential force, belt length, and drive configuration.
Recommendations for storage, transport, and mounting of timing belts are included. The document advises on maintaining a dry storage environment and proper handling to avoid bending.
Factors affecting belt performance, such as stiffness, friction forces, and belt elongation, are discussed. The document emphasizes the impact of these variables on the belt's operational efficiency.
Design guidelines for transmission configurations are provided, including the importance of adjustable axes and tension rollers. The document also covers the significance of parallel alignment and rigid bearings.
Examples of power transmission calculations are provided, illustrating how to determine belt width and length based on specific operational conditions.
General advice on the use of timing belts in various applications, including transport technology and linear drives, is provided. The document highlights the benefits of using BRECO® and BRECOFLEX® timing belts for precise movement transmission.
The document provides detailed technical specifications and guidelines for the use of BRECO® timing belts, focusing on their construction, properties, and application in linear drives. It includes information on the materials used, operational temperature ranges, and the importance of correct pre-tensioning.
BRECO® timing belts are made from wear-resistant polyurethane and high tensile steel cord tension members, offering high loadability and efficiency. They are temperature resistant from -30°C to +80°C, with special considerations needed for extreme temperatures. The belts are available in rolls of 50m or 100m.
Key properties include synchronous run, high efficiency (up to 98%), wear resistance, and precision in positioning. The belts are also resistant to hydrolysis, ozone, sunlight, petrol, and simple fats and oils.
The document outlines the process for designing linear drives using BRECO® timing belts, including determining belt type and width based on mass and acceleration. It provides formulas for calculating forces, torque, power, and other parameters essential for the design and operation of linear systems.
The document emphasizes the importance of correct pre-tensioning to maintain belt performance and prevent slack. It also discusses the calculation of tangential forces, torque, and the impact of various forces on the system.
For optimal performance, it is recommended to use pulleys with at least 20 teeth and to consider larger belt widths to increase stiffness and reduce elongation. Special attention is advised for systems using stepping motors to avoid resonance issues.
The document highlights the importance of maintaining safety factors and ensuring accuracy in the rotational to linear translation of movement. It provides guidance on achieving precision and repeatability in positioning.
The document serves as a comprehensive guide for designers and engineers in selecting and using BRECO® timing belts for linear drives, ensuring efficient and reliable operation through proper design and maintenance practices.
1. Timing Belts: Use BRECO® timing belts within the minus tolerance range and pre-tension them to the setpoint dimension once installed. For pitch faults, design the drive pulley assembly as large as possible to suppress pitch errors effectively.
2. Faults and Adjustments: Eccentricity faults or center offsets in pulleys or tension rollers can cause irregular movements. Check concentric precision and center offset, and reduce tolerance range if necessary.
3. Thermal Elongation: BRECO® timing belts with steel cord tension members exhibit similar thermal elongation as steel structures, requiring no change in pre-tension force. In aluminum structures, a slight increase in pre-tension may be needed with temperature rise.
1. Belt Width Calculation: Use the actual torque characteristic of the drive motor to calculate the minimum width of the timing belt. The calculated width should be rounded up to the next standard size.
2. Online Tools: The "belt pilot" online tool allows engineers to perform geometric calculations, configure belt drives, and check performance calculations. CAD drawings can be downloaded for integration into CAD systems.
1. Standard Sizes: Ordering a standard size by code ensures delivery of a product meeting specified properties. Contact distribution partners for technical data and special-purpose belts.
2. Product Range: The document lists various types and specifications of BRECO® and BRECOFLEX® timing belts, including construction, properties, and manufacturing processes.
1. Specialist Support: Seek specialist support for installation and adjustments to ensure optimal performance.
2. Temperature Considerations: Consider temperature influences only in exceptional cases, as their impact is generally minor.
Catalog excerpts
BRECO®, BRECOFLEX® timing belts THE POWER OF A WELL-MESHED GROUP. BRECO is member of Mulco-Europe EWIV
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Keeping things moving! Keeping things moving! Keeping things moving! Innovation is our drive - this principle marks BRECO Antriebstechnik Breher GmbH & Co., manufacturer of BRECO® and BRECOFLEX® timing belts as the most innovative producer in the eld of polyurethane timing belt technology worldwide. The basis for a high-quality and reliable product is provided by wear resistant polyurethane for the belt body and high tensile steel cord tension members. The name BRECO became the synonym for polyurethane timing belts resulting from years of experience in the eld of thermoplastic polyurethane, the...
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BRECO®, BRECOFLEX® timing belts Properties Mechanical • Positive t, synchronous run • Constant length, no post-elongation • Low noise • Wear resistant • Low-maintenance • Highly exible • Positional and angular accuracy • Can be crossed (see chapter „Angular drives“) • Fatigue resistant, low extension steel cord tension members • Beltspeed up to 80 ms-1 • Small build sizes • Favourable power-to-weight ratio • Low pre-tension • Low bearing load • Permits large centre distances • Permits large transmission ratios • High degree of efciency, max. 98 % Construction BRECO®, BRECOFLEX® timing belts are...
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Timing belt types Timing belt types ATP high capacity prole ATP Further increased performance, noise reduction and extension of the belts useful life led to the development of the ATP timing belt. The basic concept of the ATP prole provides the division of the trapezoidal tooth into two individual and load bearing teeth. Performance increase up to 60 %, running noise reduced by up to 10 db(A) and an increased longevity by: • Tooth surface area increased by 70 % • Uniform load/tension distribution • Improved power dispersion • Reduced polygon effect • Small construction width • Optimised tooth...
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Available versions Available versions Standard version, single-sided Nylon tooth facing The standard version of the BRECO® and BRECOFLEX® timing belt is a combined construction of the two materials: wear resistant polyurethane and high tensile steel cord tension members. The standard version is universal applicable for all tasks in the drive and conveying technology. Ordering code: without The belt base corresponds the standard version. An additional nylon tooth facing causes a lower friction coefcient, lightens the tooth mesh in the pulley and reduces noise. Transport belts on bed plates running...
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The E steel cord tension member Available materials Materials for the standard application area Name of material TPUST1 Selectable tension member • steel cord • stainless steel cord TPUST2 TPUST3 • steel cord • stainless steel cord cord • steel cord • stainless steel cord Timing belt types Color Hardness Temperature range all standard types, not for BRECOFLEX® belts up to 720 mm white 92 Shore A 0°C up to +80°C all standard types, not for BRECOFLEX® belts up to 720 mm transparent 85 Shore A +5°C up to +50°C BRECOFLEX® belts up to 720 mm transparent 92 Shore A 0°C up to +80°C The thinner the single...
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The curved teeth timing belt BAT/BATK The curved teeth timing belt BAT/BATK The special characteristics • Increased tooth load resulting from the tooth curve • Clearly reduced running noise due to a time elongated tooth mesh • Higher power transmission precision and lower vibration tendency due to a reduced polygon effect • The BAT is self-guiding in the preferred running direction, no anges are required The BATK is self-guiding in both running directions due to the integrated guiding track making anges obsolete • Length constant belts due to the application of high tensile steel cord tension...
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BRECOFLEX® manufacturing process BRECOFLEX® timing belts BRECOFLEX® timing belts BRECOFLEX: The BRECOFLEX® timing belt is manufactured in endless lengths without tension member interruption. The tension member is spirally coiled. BRECOFLEX® timing belts are universal applicable for all tasks in the drive technology up to 10000 min-1. Application areas Endless timing belts for power transmissions All drives designed for a high performance should preferably be produced as BRECOFLEX® timing belts with a full length steel cord tension member. They can be subjected to both permanent operation or for...
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Review of product and performance AT3 Power transmission Review of product and performance ATS15 ≤ 5 kW Power transmission -1 AT20, SFAT20 ≤ 160 kW possible beyond 200 kW ≤ 30 kW approx. 6500 min Rotational speed approx. 10000 min-1 approx. 48 ms-1 Peripheral speed approx. 40 ms-1 Peripheral speed approx. 60 ms-1 Synchronous pulley from z=25 Synchronous pulley from z=18 Synchronous pulley from z=12 Applications (example) power drives, paper-making machines, high-bay storage, lifting equipment Applications (example) heavy-duty drives, textile machinery, printing machinery, machine tools Applications...
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Imperial timing belts Imperial timing belts BRECOFLEX® XH BRECOFLEX® XH (endless) BRECOFLEX® XH R.p.m. -1 (endless) Tooth shear strength (specic belt tooth load bearing) FUspec Mspec Pspec FUspec R.p.m. -1 Mspec Pspec n [min ] [N/cm] [Ncm/cm] [W/cm] n [min ] [N/cm] [Ncm/cm] [W/cm] 0 91,35 29,070 0,000 1400 46,35 14,760 21,600 20 14,418 22,680 44,28 14,094 23,580 83,52 26,550 1,670 1700 43,38 13,797 24,570 81,63 26,010 2,178 1800 42,48 13,509 25,470 79,83 25,380 2,664 1900 41,58 13,239 26,370 73,08 23,310 4,878 2000 40,77 12,978 27,180 300 68,31 21,780 6,831 2200 39,24 12,501 28,800 400 64,62...
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BRECO® manufacturing process BRECO® timing belts BRECO® timing belts (BRECO M: Open length / BRECO V: Joined belts) BRECO M: The BRECO® timing belt is manufactured in open length. The tension members are always arranged with parallel edges. Open length is required e.g. in linear transmissions. All tension members assume part of the load. BRECO V: BRECO® timing belts are manufactured from open length material welded to endless belts. In the join area the half number of tension members assume part of the load. The use of endless joined BRECO® timing belts is preferred in the conveying technology...
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