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BRECO components

BRECO components
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BRECO components

Product catalog summary
Introduction
BRECO has been a leader in polyurethane timing belt technology for over 40 years, focusing on innovation, quality, and ecological material use. The company complies with the Waste Electrical and Electronic Equipment Directive by using lead-free materials.
Product Features
BRECO offers a wide range of standard and customized products, including synchronizing pulleys, shafts, tension rollers, and clamping elements. These products are optimized for reliability and available with special surface coatings for enhanced corrosion and wear resistance.
Advantages of Timing Belt Drives
Timing belt drives provide greater positioning and transmission accuracy, low-friction operation, reduced moving mass, and require no maintenance, making them crucial in mechanical engineering and construction.
Materials and Surface Treatments
BRECO uses high-strength aluminum alloys and stainless steel for synchronizing pulleys, ensuring reliability. Surface treatments like anodizing and Teflon coating offer corrosion protection and improved glide properties.
Machining and Special Geometries
BRECO provides extensive machining options and special geometries to meet specific customer requirements, ensuring low-friction, low-noise, and precise drive elements.
Conclusion
BRECO's commitment to quality, innovation, and ecological responsibility makes it a preferred choice for timing belt solutions, offering products with high functional reliability.
Overview
The document details specifications and ordering information for synchronizing pulleys with various tooth gap designs, covering different profiles such as AT, T, and Imperial, including material specifications, dimensions, and ordering codes.
Tooth Gap Design
The document outlines tooth gap designs for different profiles, with standard gap forms not needing specification when ordering, but optional gap forms must be indicated.
Ordering Information
Instructions are provided for ordering synchronizing pulleys, specifying material, total width, type/pitch, number of teeth, flanges, hub dimensions, bore, and groove according to DIN 6885.
Material and Dimensions
The document specifies materials like aluminum for synchronizing pulleys and provides detailed dimensions for different types and pitches, including tables with measurements for pitch circle diameter and more.
Flanges and Tolerances
Zinc-plated steel is standard for flanges, with mounting achieved by flaring or bolting. Tolerances are specified according to DIN 7168, with center borings made in H7 unless otherwise required.
Tables and Data
Extensive tables list the number of teeth, pitch circle diameter, pulley outside diameter, flange diameter, hub dimensions, pre-bore, and maximum bore diameter for various synchronizing pulleys.
Recommendations
Users are advised to contact sales partners for technical design assistance and specify any special requirements or intermediate dimensions not covered in standard offerings.
Specifications
The document outlines tightening moments for countersunk head screws and cheese head screws, specifying required torque for different sizes and types.
Mounting Instructions
Instructions are provided for mounting tension plates of Variant B type 2, with specifications for belt widths of 75 mm and 100 mm.
Product Features
The BRECO TSM alpha 1 measuring device is highlighted for its easy handling and contactless measurement capabilities, measuring pre-tension in tooth-belt drives.
Online Tools
The 'belt pilot' is an online tool for design engineers to perform geometric calculations for timing belt drives, including belt width planning and pulley diameter calculations.
Distribution and Contact Information
Contact details for distribution partners across Europe and the USA are provided.
Product Catalogues
Available product catalogues for BRECO and BRECOFLEX components are listed, covering timing belts, flat belts, and related accessories.
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Catalog excerpts

BRECO components-1

BRECO® Components for Polyurethane Timing Belts

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BRECO components-2

Keeping things moving! Keeping things moving! Keeping things moving! BRECO has been a market leader in terms of innovation and quality in the field of polyurethane timing belt technology for over 40 years. Our 250 employees produce timing belts and toothed pulleys at our main plant in Porta Westfalica. Our longstanding experience combined with the consistent use of only high-quality materials has established the reputation of BRECO products throughout the world. Not only the quality but also the service via select sales partners and the joint development of our individual solutions are an important...

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BRECO components-4

Surface treatment Synchronising pulleys Surface refinement for synchronising pulleys made from aluminium Materials for synchronising pulleys Surface treatment Use Brief description Anodising Decorative corrosion protection for the surface Layer thickness to max. 20µm The layer hardness is in the range 250-350 HV, the oxide layer resulting from anodising ensures very good resistance to wear and prevents corrosion symptoms. BRECO provides various materials for diverse areas of application for synchronising pulleys. We only use pressed and drawn semi-finished products so that the technical properties...

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BRECO components-5

Special geometries Machining/Special geometry according to customer‘s need Machining/Special geometries according to customer requirements The ever-increasing requirements for low-friction, low-noise and precise drive elements continually present us with new challenges. Thanks to modern production technology, BRECO can offer its customers extensive machining options as well as special geometries for individual adaptation of the synchronising pulleys to the relevant application. The combination with the optimised BRECO® or BRECOFLEX® timing belts results in drive elements that ensure a very high...

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BRECO components-6

Tooth gap design Tooth gap design Tooth gap forms Timing belts are positive fitting drive elements. They work slip-free with the associated synchronising pulleys. BRECO- and BRECOFLEX- timing belt drives can also be optimised to motion transmission that is low in flank play. For especially high requirements with respect to the accuracy of the motion transmission, the SE or zero gap can be used for some profiles and divisions in compliance with certain prerequisites. Our sales partners will be pleased to help with the technical design of your drive. Ordering information: Normal gap SE gap (reduced...

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BRECO components-7

Versions and ordering information Versions and ordering information When using the standard order text, you will receive a product without a drawing, which matches the timing belt program with respect to function and quality. Synchronising pulley with turned groove Synchronising pulley with fastening bore 16 M 6 Ø 50 The order texts for various designs are listed in the following representations. Synchronising pulley without hub Synchronising pulley with hub 50 40 10 Turned groove Ø50x16 deep Ø 20 Ø 58 Ø 20 Threaded bore M6‚ centre tooth Synchronising pulley with turned groove Synchronising pulley...

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BRECO components-9

The AT5 stock pulleys are marked in grey. Stock pulleys up to z=44 are supplied with flanges as standard, from z=48 without flanges. Self-tracking pulleys are production goods and only available from z=20. Please contact our sales partner if you require intermediate widths, larger widths or other hub dimensions. BRECO order example Type / Pitch Type / Pitch

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BRECO components-10

The AT10 stock pulleys are marked in grey. Stock pulleys up to z=44 are supplied with flanges as standard, from z=48 without flanges. Self-tracking pulleys are production goods and only available from z=20. Please contact our sales partner if you require intermediate widths, larger widths or other hub dimensions. BRECO order example Type / Pitch Type / Pitch

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BRECO components-13

Do you need other hub dimensions? If so, feel free to contact our sales partner. BRECO order example Type / Pitch Type / Pitch

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BRECO components-14

Please state curve direction according to sketch in drawings! Do you need other hub dimensions? If so, feel free to contact our sales partner. BRECO order example Synchronising pulley Type / Pitch Self-tracking pulley Type / Pitch

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BRECO components-15

Synchronising pulley BAT15 H Self-tracking pulley BATK15 Please state curve direction according to sketch in drawings! Do you need other hub dimensions? If so, feel free to contact our sales partner. BRECO order example Synchronising pulley Type / Pitch Self-tracking pulley Type / Pitch

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BRECO components-18

Synchronising pulley T5_H_Self-tracking pulley TK5K6 The T5 stock pulleys are marked in grey. Stock pulleys up to z=40 are supplied with flanges as standard, from z=48 without flanges. Self-tracking pulleys are production goods and only available from z=20. Please contact our sales partner if you require intermediate widths, larger widths or other hub dimensions. BRECO order example Type / Pitch Type / Pitch

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BRECO components-19

Belt width Pulley width Total width The T10 stock pulleys are marked in grey. Stock pulleys up to z=40 are supplied with flanges as standard, from z=48 without flanges. Self-tracking pulleys are production goods and only available from z=20. Please contact our sales partner if you require intermediate widths, larger widths or other hub dimensions. BRECO order example Type / Pitch Type / Pitch

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BRECO components-20

Synchronising pulley T20 H Self-tracking pulley TK20K13 Please contact us if you need intermediate or larger widths BRECO order example Type / Pitch Type / Pitch

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BRECO components-29

Tension rollers Type B with excenter, teeth on the running surface Tension rollers Type B with excenter, teeth on the running surface Stock program Stock program Tension roller (T-, AT profile) ø dk B2 B SW G t D1 E D G Type B/E0 (toothed) Tension rollers B are seated twice on grooved roller bearings. The bearings are greased for live. Permanent temperatures co 70°C and under will not lead to a reduced useful life of the grease. Short-term temperatures up to 120°C are permitted. Tension roller B/E0 Al 34 T5 / 22 - 0 Material Width B Type / Pitch Materials: Axis: steel Running roller: aluminium...

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