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RV N series - 50 Pages

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Catalogue excerpts

High Reliability High Rigidity High Precision Gear Reducers

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Contributing to society with our ‘Moving it. Stopping it.’ technologies Nabtesco's technologies supporting society Nabtesco manufactures products which are used in everyday life. Our high-accuracy components are essential for moving objects; they may be rarely visible, but are the foundation of everyday objects that you see moving and wonder how. Nabtesco’s technologies are found throughout objects that move and stop people’ s lives. Do or s Ro bo ts Precision reduction gears precisely move and stop industrial robots. Co ns tru cti on ma ch ine ry Running motors and control valves start and stop...

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CONTENTS Who is Nabtesco? The key words for Nabtesco are ‘motion control’. We use our strengths in the elds of component and systems technologies to develop highly creative products. Through the Nabtesco Group as a whole, we can also utilize our advantage of expertise to maximum effect in order to further enhance these strengths. In the air, on land and at sea, we have a leading share in various elds of both international and domestic markets. Nabtesco will continue to evolve by utilizing its strengths in many elds and by exploring the possibilities of the future. Examples of uses for the RV N...

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What is the RVTM N SERIES ? RVTM reduction gears, already top sellers in the robotics industry, now evolved even further!! Compact N Series gears 60% share of the global market for industrial (verticaldeliver great potential!! articulated) robot joints * Based on Nabtesco studies Based on our RV reduction gears which achieve 4 million units already shipped, the new RV N models have been made even more compact and lightweight.

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(Compared with our existing products) (Compared with our existing products) External dimensions Model size comparison Model The same basic performance Space-saving design for a wide range of uses Robotics Machine tools Food industry Wood processing Semiconductors Medical care Transportation Inspection / measurement 3

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Examples of uses for the RVTM N SERIES Vertical-articulated robot (joint shaft) SCARA robot Machine tool (turret of lathe) Machine tool ATC magazine

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Glass substrate/wafer rotation and positioning Positioning turntable Cover open/close and reverser Medical device

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Principle of sagged reduction 1st stage • • • Spur gear reduction I An input gear engages with and rotates spur gears that are coupled to crankshafts. Several overall gear ratios can be provided by selecting various first stage ratios. 2nd stage • • • Epicyclic gear reduction (Crankshafts driven by the spur gears cause an eccentric motion of two epicyclic gears called RV gears that are offset 180 degrees from one another to provide a balanced load. ► The eccentric motion of the RV gears causes engagement of the cycloidal shaped gear teeth with cylindrical^ shaped pins located around the inside...

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RVTM N SERIES model code Product code RV - 100 N - 102.17 - A Model code Frame number Series code Ratio code Input gear code A: Standard gear A B: Standard gear B *Under development *Contact us for more information on this model. Direction of rotation and gear ratio The overall speed ratio i (of the First and Second reduction stages) will differ between shaft rotation and case rotation, and can be calculated from the speed ratio. Shaft rotation Case rotation Reverse direction against input Same direction with input Input Output Output The sign "i" in the above equations signifies the output shaft...

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Rating table R Model Ratio code Speed ratio Rated torque (Note 5) Rated output Speed Rated service life Allowable acceleration/ deceleration torque Momentary maximum allowable torque Case rotation Under development Note: 1. The allowable output speed will differ depending upon the duty ratio, load, and ambient temperature. Contact us regarding use above the allowable output speed Ns1 with a 40% duty ratio. 2. The allowable moment will differ depending on the thrust load. Check the allowable moment diagram (P. 29). 3. The inertia moment value is for the reduction gear. It does not include the inertia...

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Allowable Output Allowable Output Speed (Note 1) Speed (Note 1) Duty ratio: 100% Duty ratio: 40% (rpm.) Lost motion Angular transmission error (Max.) Startup efficiency (Typical value) (%) MO1 Allowable moment (Note 2) (Nm) I MO2 Reduced value of Momentary the inertia moment allowable for the input shaft moment (Max.) (Note 3) (Nm) (kgm2) 7.46x10Note: 5. The rated torque is the value that produces the rated service life based on operation at the rated output speed; it does not indicate the maximum load. Refer to the “Glossary” (p.22) and the “Product selection flowchart” (p.23). 6. Contact us...

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Specifications and dimensions are subject to change without notice. External dimensions

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Specifications and dimensions are subject to change without notice.

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Specifications and dimensions are subject to change without notice.

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Specifications and dimensions are subject to change without notice.

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Specifications and dimensions are subject to change without notice.

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Specifications and dimensions are subject to change without notice.

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Specifications and dimensions are subject to change without notice.

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*Contact us for more information on this model. Under development

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Specifications and dimensions are subject to change without notice.

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Specifications and dimensions are subject to change without notice.

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Technical Information

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Cautions for use of RVTM N SERIES Use of the product When this product is exported from Japan, it may be subject to the export regulations provided in the “Foreign Exchange Order and Export Trade Control Order”. Be sure to take sufficient precautions and perform the required export procedures in advance if the final confirming party is related to the military or the product is to be used in the manufacture of weapons, etc. If failure or malfunction of the product may directly endanger human life or if it is used in units which may injure the human body (atomic facilities, space equipment, medical...

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All Nabtesco Precision catalogues and technical brochures

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  6. RA series

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