Group: Sumitomo
Catalog excerpts
Sumitomo DriveTechnologies Fine Cyclo® Zero Backlash Precision Gearboxes
Open the catalog to page 1Copyright Sumitomo (SHI) Cyclo DriveGermany GmbH 2018. All rights reserved. Copying, including extracts, is only permitted with our approval. The information in this catalogue has been checked for correctness with extreme care. However, no liability can be accepted for any incorrect or incomplete information. We reserve the right to make modifications.
Open the catalog to page 3Fine Cyclo Sumitomo DriveTechnologTes 1 The Fine Cyclo reducer 2 3.1 Reduction ratio and acceleration torque 9 4 Explaining the technical details 18 5.4 No-load running torque NLRT 29 6.4 No-load running torque NLRT 65 6.8 Assembly specifications and tolerances 70 7.4 No-load running torque NLRT 83 7.8 Assembly specifications and tolerances 89
Open the catalog to page 5Fine Cyclo Introduction 1 The Fine Cyclo reducer Inner design Series A FC-A Inner design Series D
Open the catalog to page 6Fine Cyclo Introduction Inner design Series C Inner design Series T O Cycloid disc © Eccentric high speed shaft © Inputshaftbearing © Main Bearings © Ringgear(housing) © Radialshaftsealoutputside © Outputflange © Output shaft © Planetgears © Input shaft with helical gear
Open the catalog to page 7Fine Cyclo Introduction Sumitomo DriveTechnologies 1.1 Operating principle - Series A, D, and C Thegearboxofthe FineCycIo series ^fundamentally different in principle and mechanism from the helical gearing mechanism ofcompetitors1 gear motors. The unique reduction gearbox is an ingenious combination ofthefollowing two mechanisms: • A planet gearand a fixed internal sun gear (hollow gear). On the Fine Cyclo the planet gear has cycloidal cam motion (cycloid disc) and thefixed sun gear has a circulararrangement of ring gear pins.Thefixed sun gear has one ortwo "teeth" more than the "planet...
Open the catalog to page 8Fine Cyclo Introduction Sumitomo DriveTechnologTes 1.2 Operating principle Series T The Series T gearboxes are double stage and differfrom the single stage series in having 3 eccentrics, driven by the input shaft with spur teeth. The cycloid discs are driven via 3 eccentric shafts and not directly byone eccentric input shaft. The pins and the eccentric shafts in the output shaftare evenly spaced on a circle, which is concentric to the axis ofthe sun gear. The pins transmitthe rotation ofthe planet gear by rolling internally around the circumference ofthe bores ofeach planet gearor cycloid...
Open the catalog to page 9Fine Cyclo Introduction Sumitomo DriveTechnologies 1.3 Speed ratio and rotation direction - Series A, D, and C Output shaft Ring gear housing Input shaft Gear reduction s lnput:lnputshaft u Output:Outputshaft ' Fixed: Ring gear housing n = -1/i Gear reduction Input: Input shaft Output: Ring gear housing Fixed: Output shaft n = 1/(i+1) Gear reduction Input: Output shaft Output: Ring gear housing Fixed: Input shaft n=i/(i+1) Output flange rotates n = Speedratio = (outputspeed/inputspeed) indicates the possible opposite direction) i = reduction ratio 1.4 Speed ratio and rotation direction...
Open the catalog to page 10Fine Cyclo Introduction Sumitomo DriveTechnologTes 1.5 Features and advantages Compact design The high reduction ratios, in one or a maximum oftwo stages, allow for extremely compact designs with a long lifetime. Moreover, due to the different versions available, these gearboxes can be optimally integrated into the machine environment. Simple installation The Series A, D, and C gearboxes are lubricated for life, fully sealed and maintenance-free. Convenient and simple motor mounting is also taken account of in all ranges. Precise positioning In more and more applications, fast cycle speeds...
Open the catalog to page 11Fine Cyclo Introduction Sumitomo DriveTechnologies 2 Nomenclature F -Reduction ratio Standard version: - Shape of ring gear housing: Cylindrical - Symbol forCycIo Bearing: Withoutoutputsidebearing: - Integrated cross roller bearing: 1 Integrated tapered roller bearing: 2 Tapered roller bearings and output shaft: 3 Integrated angular ball bearing: 4
Open the catalog to page 12Fine Cyclo Introduction Sumitomo DriveTechnologTes Reduction ratio 3 Gearbox selection3.1 Reduction ratio and acceleration torque 14000 12000 10000 z 0) 3 8000 o 4—' c o 2 6000 ai 3.3 Max. hollow shaft diameter Fine Cyclo 991333 02/2018
Open the catalog to page 13Fine Cyclo Introduction Sumitomo DriveTechnologies 3.4 Reduction ratio and outer diameter A-Series Special feature: Both a reduction kit without an output side bearing as well as fully sealed versions and a gearbox with output shaft instead ofoutput flange a e available Optional: Available with motor adapter, customer-specific input shaft or output flange and other modification •: available reduction ratio
Open the catalog to page 14Fine Cyclo Introduction Sumitomo DriveTechnologTes D-Series Special feature: Thegearboxes are supplied with matching clamp ring adapter and motorflang Optional: The gearboxes can also be purchased with other mounting options or without customer-specific flang . « S-S s i •: available reduction ratio a. A.: Housing shape on request C-Series Special feature: The largediameterofthe hollow shaftallows an effective use ofspaceforcable or media feed-through Optional: Customer-specific customisation of input shaft, output flang , and housing possible : available reduction ratio a. A.: Housing...
Open the catalog to page 15Sumitomo DriveTechnologies T-Series Special feature: Gearboxes with high positioning and path accuracy, even under highly flu tuating dynamic conditions Optional: Fitting of motors without key with clamp ring design possible 12 •: available reduction ratio Max. motor shaft-0 with keyway (clamp ring design on request) 14 17 22 28 28 35 35
Open the catalog to page 16Fine Cyclo Introduction Sumitomo DriveTechnologTes 3.5 Torques and speeds Maximum permissible input speed n, ED The gearbox can be used within the maximum input speed range indicated in the table, however, the max. permissible mean input speed is limited by the load duty cycle (%ED). A-Series Model Size Reduction ratio i Max. permissible input speed n [min-1] torque for emergency stop Reduction ratio i Max. permissible input speed n1 ED [min-1] 50% ED 100% ED Max. acceleration torque [Nm] Max. torque for emergency stop C-Series Model
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