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Fine Cyclo : Zero Backlash Speed Reducers

Fine Cyclo : Zero Backlash Speed Reducers
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Fine Cyclo : Zero Backlash Speed Reducers

Product catalog summary
Product Description
Sumitomo's Fine Cyclo Precision Gears are designed for high-precision applications in robotics, machine tools, and automation. They offer zero backlash speed reduction, high torsional stiffness, and compactness, making them cost-effective solutions for demanding environments.
Features & Benefits
  • FA-Series: Ideal for point-to-point applications, featuring a Cyclo system with three discs and a single eccentric, available in four mounting versions.
  • FT-Series: Designed for smooth traverse applications, with two discs and a single eccentric for high transmission accuracy and minimal vibration.
  • Key benefits include no mechanical backlash, low hysteresis loss, high shock load capacity, and easy mounting with motor fitting.
  • Grease lubrication ensures long life and short delivery times.
The Cyclo Principle
The Cyclo gearbox operates with four main components: a high-speed shaft with eccentric bearing, cycloid discs, a ring gear housing with pins and rollers, and a slow-speed shaft or flange with pins and rollers, ensuring smooth torque transmission.
Technical Specifications
  • FA Series: Offers single reduction ratios of 29, 59, 89, 119, 179 with rated output torque up to 5,140 Nm and acceleration torque up to 7,610 Nm.
  • Various versions provide different configurations for output flanges and bearings, enhancing stiffness and torque capacity.
Performance Highlights
  • Zero backlash with standard <2 arcmin, and upon request <1 arcmin.
  • High stiffness and low vibrations due to three cycloid discs.
  • Low mass moment of inertia for quick response to acceleration and deceleration.
  • High output torque and overload capacity with high reduction ratios in a single-stage reducer.
Specifications and Features
The document details the specifications of the FINE CYCLO gearbox series, emphasizing zero mechanical backlash, high torsional stiffness, and compact design. Models like the FC-A 15 G and FC-A 75 G support high torques and efficiency due to precise manufacturing.
Procedures and Assembly
Assembly instructions highlight the importance of correct mounting and the use of suitable adapters for motor mounting. Unauthorized disassembly is discouraged to maintain performance guarantees.
Maintenance and Standards
Minimal maintenance is required, with grease lubrication for life. Standards such as DIN 6885 and DIN ISO 286 are referenced for keys, keyways, and tolerances.
Performance and Efficiency
Efficiency curves illustrate performance relative to speed and reduction ratio. The gearboxes can handle shock loads up to 500% of rated torque, with calculations provided for load duty cycle and equivalent torque.
Torque Ratings and Load Capacities
Tables detail torque ratings and allowable speeds, emphasizing the importance of adhering to specified limits for optimal performance.
Specifications and Recommendations
Specifications for mounting bolts stress the importance of correct tightening torques, with recommendations for using a torque wrench and adhering to VDI 2230 standards for increased torque transmission.
Allowable Transmitted Torque
The document provides details on bolt specifications and tightening torques, with guidance on handling higher peak torques in crash situations.
Design and Features
The Fine Cyclo FT series features a new design with integrated involute gear stage, suitable for high-precision applications like welding and painting robots.
Applications
The gearboxes are designed for industrial applications requiring high precision and efficiency, such as robotics and factory automation.
Overview
The document provides a comprehensive overview of the Fine Cyclo - FT series, detailing specifications, operating principles, selection procedures, and performance characteristics.
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Catalog excerpts

Fine Cyclo : Zero Backlash Speed Reducers-1

Sumitomo DriveTechnologies Fine Cyclo Zero Backlash Speed Reducers Spielfreie Getriebe

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Fine Cyclo : Zero Backlash Speed Reducers-2

Reproduction in part or whole is not permitted without our prior approval. Whilst every care has been taken in preparation of this catalogue, no liability can be accepted for any errors or omissions. Modifications reserved Nachdruck, auch auszugsweise, nur mit unserer Genehmigung gestattet. Die Angaben in diesem Katalog wurden mit größter Sorgfalt auf ihre Richtigkeit überprüft. Trotzdem kann für eventuell fehlerhafte oder unvollständige Angaben keine Haftung übernommen werden. Änderungen behalten wir uns vor. FINE CYCLO FINE CYCLO torsionally stiff compact cost effective Precision gears for...

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Fine Cyclo : Zero Backlash Speed Reducers-3

FINE CYCLO Table of contents

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Fine Cyclo : Zero Backlash Speed Reducers-4

Product description Sumitomo's Fine Cyclo Precision Gears for Robotics, Machine Tool Industry and Automation are torsionally stiff, compact and cost effective. Sumitomo Fine Cyclo Präzisionsgetriebe für Roboter, Werkzeugmaschinen und Fabrikautomation sind kompakt, verdrehsteif und preiswert. Zero backlash speed reduction assemblies for all applications which demand the highest precision and stiffnes. Mechanische verdrehspielfreie Getriebeeinbausätze für höchste Anforderungen an Positioniergenauigkeit, Verdrehsteifigkeit und Übertragungsfehler. Features & Benefits Eigenschaften & Vorteile FA-Series...

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Fine Cyclo : Zero Backlash Speed Reducers-5

FINE CYCLO There are essentially four major components in 1. High speed shaft with eccentric bearing 3. Ring gear housing with pins and rollers 4. Slow speed shaft or flange with pins and Das CYCLO-Getriebe setzt sich aus 4 Hauptbestandteilen zusammen: 3. dem Bolzenring mit den Bolzen und Rollen 4. der Abtriebswelle mit Bolzen und Rollen 1. Simplified System / 2. Schematic Diagram Pins & Rollers Mitnehmerbolzen & Rollen Cycloidal Disc High Speed Shaft Cycloidal Disc/Kurvenscheibe Bearing / Walzkdrper Slow Speed Shaft High Speed Shaft Antriebswelle Slow Speed Shaft As the eccentric rotates, it...

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Fine Cyclo : Zero Backlash Speed Reducers-6

General formula of the Cyclo Principle Allgemeine Formel des CYCLO Prinzips The reduction ratio can be calculated from the following equation Für das Übersetzungsverhältnis gilt die Drehzahlgleichung n1=speed of the high speed shaft n2=speed of the slow speed shaft n3=speed of the casing (special application for example in centrifuges) "Effective" reduction ratio Reduction ratio acc. to catalogue Change of rotational direction Rotational direction same as input Output n1= Drehzahl der Antriebswelle n2= Drehzahl der Abtriebswelle n3= Drehzahl des Gehäuses (für spezielle Einsätze, z.B. Zentrifugen)...

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Fine Cyclo : Zero Backlash Speed Reducers-7

Fine Cyclo - FA Version FC-A Standard Reduction Assembly without bearing support for output flange Standard Einbausatz ohne gelagerten Abtrieb 6 mounting sizes single reduction ratios 29, 59, 89, 119, 179 reduction kit for integrated design compact assembly by utilising customers bearing support rated output torque up to 5.140 Nm acceleration torque up to 7.610 Nm allowable peak torque for emergency stop up to 24.000 Nm input speeds up to 6.150 rpm Lost Motion achievable down to 1 arcmin motor connection via intermediate flange optional connection to keyless motor shaft using clamp ring 6 Baugrößen...

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Fine Cyclo : Zero Backlash Speed Reducers-8

Fine Cyclo - FA Version F1C-A Flanschversion mit abtriebsseitiger Kreuzrollenlagerung 6 mounting sizes single reduction ratios 29, 59, 89, 119, 179 bearing supported output flange rated torque up to 5,140 Nm acceleration torque up to 7,610 Nm allowable peak torque for emergency stop up to 24,000 Nm input speeds up to 6,150 rpm Lost Motion achievable down to 1 arcmin motor connection via intermediate flange optional connection to keyless motor shaft using clamp ring 6 Baugrößen Übersetzungen einstufig 29, 59, 89, 119, 179 gelagerte Abtriebswelle Nennabtriebsdrehmomente bis 5.140 Nm Beschleunigungsdrehmomente...

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Fine Cyclo : Zero Backlash Speed Reducers-9

Fine Cyclo - FA Version F2C-A Speed Reducer with output flange and integrated taper roller bearings Flanschversion mit integrierter Kegelrollenlagerung 4 mounting sizes single reduction ratios 29, 59, 89, 119, 179 smaller overall dimensions than F1C-A taper roller bearings with high moment ratings rated output torque up to 1,830 Nm acceleration torque up to 2,910 Nm allowable peak torque for emergency stop up to 7,210 Nm input speeds up to 6,150 rpm Lost Motion achievable down to 1 arcmin motor connection via intermediate flange optional connection to keyless motor shaft using clamp ring optional...

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Fine Cyclo : Zero Backlash Speed Reducers-10

Fine Cyclo - FA Version F3C-A mit Abtriebswelle, Kegelrollenlagerung und Gehäuse 6 mounting sizes single reduction ratios 29, 59, 89, 119, 179 bearing supported output shaft high torsional stiffness rated output torque up to 5,140 Nm acceleration torque up to 7,610 Nm allowable peak torque for emergency stop up to 24,000 Nm input speeds up to 6,150 rpm Lost Motion achievable down to 1 arcmin motor connection via intermediate flange optional connection to keyless shaft using clamp ring optional splined output shaft available 6 Baugrößen Übersetzungen einstufig 29, 59, 89, 119, 179 Nennabtriebsdrehmomente...

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Fine Cyclo : Zero Backlash Speed Reducers-11

Fine Cyclo - FA Features & benefits Eigenschaften & Vorteile Zero backlash The CYCLO system is assembled without clearance and therefore without mechanical backlash. Kein Verdrehspiel Die Getriebe der Serie FINE CYCLO haben kein mechanisches Verdrehspiel. Reduced Lost Motion For all sizes and reduction ratios: Standard<2 arcmin, upon request<1 arcmin. Wenig Lost Motion Für alle Baugrößen und Übersetzungen gilt: Standard<2 arcmin, auf Wunsch<1 arcmin. High stiffness For example version FC-A 75 G: up to 1100 Nm/arcmin. Hohe Verdrehsteifigkeit Zum Beispiel FC-A 75 G: bis 1.100 Nm/arcmin. Low vibrations...

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Fine Cyclo : Zero Backlash Speed Reducers-12

Typical Hysteresis curve for a conventional Typische Hysteresekurve eines herkommlichen Typical Hysteresis curve for a FINE CYCLO Lost Motion Typische Hysteresekurve eines FINE CYCLO Hysteresis loss (Positioning accuracy) ^ Rated output torque T2N

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.