Engineering Software

Synchronous Belt Software

Ciclo SynchroBelt 3.0 - Professional Edition

Ciclo SynchroBelt is a innovative and reliable computer program that allows you create high performance drive designs by using timing belts and pulleys:

  • Trapezoidal toothed synchronous belts
  • Curvilinear toothed synchronous belts

Based on both metric and imperial measurement system, Ciclo SynchroBelt brings the latest engineering knowledge to generate design solutions intended for power transmission and precision synchronization applications.


Like all applications of our company, Ciclo SynchroBelt has been developed by dedicated professionals that hold in high regard the accuracy of engineering calculations and the reliability of technical analyses implemented in the algorithms of the software.

With the same care and commitment, the software interfaces have been designed for simplicity and ease of use without compromising its unmatched range of features and capabilities.

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Synchronous Timing Belt Standards

Ciclo SynchroBelt specifically covers the three main technical standards of the world.

These standards gave rise to almost all the other dealing with the matter, while maintaining full compatibility.

  • ISO - International Organization for Standardization
  • DIN - Deutsches Institut für Normung
  • RMA - Rubber Manufacturers Association

Dynamic Selector

Dynamic Selector

Ciclo SynchroBelt has an innovative feature that allows you perform four simultaneous tasks in real time:

  1. Select the drive components.
  2. Draw the synchronous belt drive.
  3. Calculate the operational parameters.
  4. Analyze the drive performance.

The tool responsible for this functionality is called Dynamic Selector.

Dynamic Selector provides a clear view of how sizing process takes place and how each design can be optimized.

It is a unique and sophisticated tool that contributes significantly to Ciclo SynchroBelt is widely recognized as the best CAE software in its class.

With an intuitive interface, Dynamic Selector has four sliders that gradually adjust the size of each component of belt drive system and one more that adjusts the relative position of the pulleys.

At each change of any slider, the software automatically and instantly remakes the four tasks mentioned above.

Further increasing the performance and functionality of Dynamic Selector, each slider can be individually configured through its own drop-down menu.

Database of Synchronous Timing Belts and Pulleys

Database of Synchronous Belt Software

Dynamic Selector allows you select timing belts and pulleys from:

  • Standard Sizes
  • Commercial Sizes
  • User-Defined Sizes

Evidently, the Standard Sizes database consists of belts and pulleys whose sizes were fixed by ISO, DIN and RMA.

The Commercial Sizes database was created based on products from leading manufacturers around the world.

This database structure ensures that the synchronous belt drive designs generated by the software program are compatible with products of all Commercial Brands.

Design Utilities

Since synchronous belt drive systems are often used in industrial electric motors, Ciclo SynchroBelt has an extensive database containing data of electric motors from around the world.

The software also has other ancillary databases that complement and increase the level of detail in each design, including a database of standardized machine elements intended to make the connection between shafts and pulleys.

Electric Motor
Electric Motor IEC - International Electrotechnical Commission
  • 2880 Electric Motors
  • 11 Types of Degree of Protection
NEMA - National Electrical Manufacturers Association
  • 3240 Electric Motors
  • 11 Types of Enclosure
Driven Machine
Driven Machine Machines × Type of Load
  • 400 Types of Driven Machine
  • 20 Types of Application
Shaft Connection
Shaft Connection ISO R773 - Parallel Key
  • Ø Shaft from 6 to 500 mm
DIN 6885-1 - Parallel Key
  • Ø Shaft from 6 to 500 mm
ANSI B17.1 - Parallel Key
  • Ø Shaft from 5/16 to 30 in

Project File

Software Toolbars

When you start a new project file or open an existing file, the creation and navigation bars become enabled, allowing you to easily manage your synchronous belt drive designs:

  1. You can create and edit more than one project at the same time.
  2. Each project can contain several synchronous belt drives.
  3. In each belt drive, you can change any input data at any time.
  4. Each change is immediately analyzed.


Synchronous Belt Drive Reports

For each synchronous belt drive design, the software automatically generates a complete set of technical reports and CAD drawings that can be customized by user, including personal or corporate logo.

The display and printing of reports and drawings use a WYSIWYG (What You See Is What You Get) interface:

  • Report of Design Data
  • Drawing of the Synchronous Belt Drive
  • Detail Drawing of Pulleys and Shafts

The resolution and the scale of drawings are automatically adjusted according to the paper size selected.

You can choose from a range of standard sizes:

  • ISO paper sizes: A0 - A1 - A2 - A3 - A4
  • ANSI paper sizes: A - B - C - D - E
  • JIS paper sizes: B0 - B1 - B2 - B3 - B4
  • Arch paper sizes: A - B - C - D - E - E1 - E2 - E3
  • USA paper sizes: Letter - Legal - Ledger - Tabloid

GUI - Graphical User Interface

Software Tools

In a highly organized, flexible and friendly environment, Ciclo SynchroBelt is built with a multilingual user interface, an advanced unit converter and a number of other tools that enable it to meet the needs and expectations of the most demanding engineering professionals.

Software Tools

  • Multilanguage Support (English - Portuguese - etc.)
  • Units of Measurement and Significant Digits
  • History Input Data
  • Custom Reports
  • Print Preview
  • Design Wizard
  • Software User Tips & Guidelines

Operating System

Operating System

  • Windows 11
  • Windows 10
  • Windows 8
  • Windows 7
  • Windows Vista
  • Windows XP
  • Windows 11 Compatible
  • Windows 10 Compatible
  • Windows 8 Compatible
  • Compatible with Windows 7
  • Compatible with Windows Vista
  • Designed for Windows XP - Windows Vista Capable

Product Editions

Ciclo SynchroBelt is in redesign phase and it will have an new architecture that provides a higher level of interactivity and a significant performance advantage.

Implemented by improved tools and enhanced engineering resources, the new version 3.0 is fully compatible with the latest Windows operating system.


The previous version 2.0 of Ciclo SynchroBelt is no longer available.

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Software for
Engineers and Designers

Ciclo is an engineering software development company that provides software products and services intended for design, manufacturing and maintenance of machinery, equipment and mechanical components.

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