RS
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Precision Reduction Gear RV Turntable Gearhead

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 Gear RV™ precisely moves and stops industrial robots. Co ns tru cti on ma ch ine ry Running motors and control valves...

CONTENTSWho is Nabtesco? The key words for Nabtesco are ‘motion control'. We use our strengths in the fields 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 fields of both international and domestic markets. Nabtesco will continue to evolve by utilizing its strengths in many fields and by exploring the possibilities of the future. April 2002 Initiation...

Industrial robot Precision Reduction Gear RV™ enables the precision movements of industrial robots and also ensures their strength. Precision Reduction Gear RV™ has been praised for being compact and lightweight while offering high precision and rigidity. Since its debut in 1985, Precision Reduction Gear RV™ has been selected for use by most major industrial robot manufacturers around the world.

Precision Gearhead The RS series continues the success of Nabtesco’s world-leading Precision Reduction Gear RV™ series. These low profile gearheads are pre-lubricated with a sealed structure and are available in five types to suit different load capacities. Each type comes with dedicated fasteners that allow it to be mounted on all major motors for immediate use. As well as reducing the time needed for adjustment, the RS series significantly decreases both design and component requirements. Motor flange Input spline Simple mounting Motor fastener components

Advantages of RS series More components increase assembly and adjustment times… Reduced height Integrated transmission section! Fewer parts! Easier installation! Simplified design! Want lower equipment even further… Wiring and piping can be easily accomplished thanks to the center section and through hole. Use of a large, built-in main bearing makes it possible to support heavy loads. Pre-lubricated reduction gear can be installed easier by only mounting the motor. Three-way aperture for wiring and piping No step simplifies design and needed! installation. Backlash of 1 arc.min or less...

Reduced height Integrated transmission section! Individual features of RS series Fewer parts! Wiring and piping can be easily accomplished thanks to the center section and through hole. Pre-lubricated reduction gear can be installed easier by only mounting the motor. Easier installation! Simplied design! Use of a large, built-in main bearing makes it possible to support heavy loads. Backlash of 1 arc.min or less enables highly accurate positioning. Three-way aperture for wiring and piping simplies design and installation. Integrated input spline and motor ange supports many motor types. Use...

Structure and rotation directions RS-50A/RS-50B Center pipe (Through hole for wiring and piping) Motor ange Output surface Spline Input spline RS-260A/RS-260B Center pipe (Through hole for wiring and piping) Motor flange Output surface Spline Input spline Opening for wiring and piping

RS-320A/RS-320B/RS-400A Center pipe (Through hole for wiring and piping) Output surface Spline Motor flange Servomotor Input spline Opening for wiring and piping RS-900A Center pipe (Through hole for wiring and piping) Output surface Spline Motor flange Servomotor Input spline Opening for wiring and piping With the RS-260A/260B, RS-320A/320B/400A and RS-50A/50B, RS-900A, the rotation direction of the output shaft and servo motor differs. Note: The areas indicate output rotation sections.

Main RS series applications Welding turntables Index tables Positioners for heavy welding (rotary axis, tilting axis)

RS series model codeProduct codeRS - 260 A How to select model code • Check the thickness of the motor flange according to the following equation: Thickness of motor flange D = (A’ + LR - L) - LL Model Code Model code The lubricant code varies with the frame number. For the lubricants, refer to page 41. Note: Refer to page 19 to 21 regarding length A’ and select a spline within the numerical range. Combination of reduction gear and servomotor 1. The combinations that satisfy the following equation are recommended. (Rated torque of motor x 0.5) < {Rated torque of reduction gear/(Speed ratio...

Note: 1. The Rating Table shows the specification values of each individual reduction gear. 2. The allowable output speed may be limited by heat depending on the operating rate. Make sure that the surface temperature of the reduction gear does not exceed 60°C during use. 3. The inertia moment value is for the reduction gear. It does not include the inertia moment for the input gear. 4. The allowable moment will differ depending on the thrust load. Check the allowable moment diagram (p. 37). 5. For the moment rigidity and torsional rigidity, refer to the calculation of tilt angle and the...

Specifications and dimensions are subject to change without notice. External dimensions Reduction gear main unit

Specifications and dimensions are subject to change without notice.

Specifications and dimensions are subject to change without notice.

Specifications and dimensions are subject to change without notice.

Specifications and dimensions are subject to change without notice.

Specifications and dimensions are subject to change without notice.