Nabtesco RV RH C Series Operation Manual Download

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ERD15018A

2016/10/01

Precision Reduction Gear

High Precision Gearhead

Series

Operation Manual

RH-



RH-



RH-



above indicates the torque code (number).

For the applicable models, refer to “Model” indicated on the shipping label of the product.

This manual must be thoroughly read and understood before using the product.

Be sure to deliver this operation manual to the system manager and the person in
charge of the operation.

Keep this manual in the specified location so that it can be immediately referred to
whenever necessary.

Summary of Contents for RV RH C Series

Page 1: ...r For the applicable models refer to Model indicated on the shipping label of the product This manual must be thoroughly read and understood before using the product Be sure to deliver this operation manual to the system manager and the person in charge of the operation Keep this manual in the specified location so that it can be immediately referred to whenever necessary ...

Page 2: ...apter 1 About safety 1 1 1 About warnings 1 1 2 Type and indication of warning 1 1 3 General precautions 2 Chapter 2 Product overview 3 2 1 Name of each section 3 Chapter 3 Transportation and storage of product 6 3 1 Transportation 6 3 2 Storage 7 Chapter 4 Preparations for installation 8 4 1 Installation environment 8 4 2 Preparation of required components 9 4 3 Unpacking 14 4 4 Lifting of this p...

Page 3: ...lubricant 38 6 3 Lubricant filling procedure 40 Chapter 7 Operation 42 7 1 Checking before operation 42 7 2 Running in operation 42 7 3 Precautions for operation 42 Chapter 8 Maintenance and Inspection 43 8 1 Precautions on maintenance 43 8 2 Daily inspection 43 8 3 Lubricant replacement 44 8 4 Troubleshooting checksheet 47 Contact information ...

Page 4: ...bserved and operations that are prohibited in relation to the use of this product but it is also impossible to note all of them in this manual For this reason it is necessary to take appropriate safety measures when operating this product in addition to the points noted in this manual The particularly important information for safe handling of this product is noted below This information applies t...

Page 5: ...es to ensure safety and well being as this can prevent accidents 3 Sharing of hazard information with users When selling or transferring this product embedded in a device etc hand this manual to the person who actually uses or manages the device the person group in charge Or add the necessary information concerning handling and maintenance procedures for preventing the accidents and failures descr...

Page 6: ...e speakers of English the customer is responsible for conducting safety training and giving operation instructions to those workers 2 Copyrights The copyright for this manual belongs to Nabtesco Corporation Unauthorized reprinting reproduction copying or translation of this manual in whole or in part is strictly prohibited About This Manual ...

Page 7: ...n 1 above shall not apply if a the defect was caused due to the use of the Product deviated from the Specifications or the working conditions provided by Nabtesco b the defect was caused due to exposure to foreign substances or contamination dirt sand etc c lubricant or spare part other than the ones recommended by Nabtesco was used in the Product d the Product was used in an unusual environment s...

Page 8: ...he momentary excessive torque does not exceed the momentary maximum allowable torque Allowable output speed The allowable value for the reduction gear s output speed during operation without a load is referred to as the allowable output speed Note Depending on the conditions of use duty ratio load ambient temperature the reduction gear surface temperature may exceed 60 C even when the speed is und...

Page 9: ...given according to the following four categories in this manual If you fail to observe these warning statements it could result in lethal injury or serious damage and malfunction of the product Indicates a hazardous situation that if not avoided is highly likely to result in death or serious injury Indicates a potentially hazardous situation that if not avoided could result in death or serious inj...

Page 10: ...he drive sections do not put your fingers or any object into the clearance of the protective cover etc as it could cause injury If any abnormalities or damage to the reduction gear are found stop the operation immediately Incorrect motion could cause injury The reduction gear could become extremely hot during operation After stopping the operation never touch the reduction gear until it is complet...

Page 11: ...ecting draining grease component to be rotated Middle flange Output shaft shaft Input unit Oil seal on the input side Tapped hole for injecting draining grease component to be rotated Tapped hole for handling bolt Tapped hole for injecting draining grease component to be fixed Oil seal on the output side Hole for installing reduction gear Label Case Chapter 2 Product overview This chapter describe...

Page 12: ...cting draining grease component to be rotated Case Middle flange Oil seal Tapped hole for installing component Shaft Tapped hole for handling bolt Tapped hole for injecting draining grease component to be fixed Motor flange Input gear Type D Fig 2 4 Type E Fig 2 5 Type F Fig 2 6 Case Middle flange Oil seal Hollow section Tapped hole for installing component Tapped hole for injecting draining greas...

Page 13: ...section Case Middle flange Tapped hole for installing component Tapped hole for injecting draining grease component to be rotated Shaft Tapped hole for handling bolt Tapped hole for injecting draining grease component to be fixed Motor flange Coupling Hollow section Type G Fig 2 7 Type H Fig 2 8 The shape of the reduction gear may differ from the illustration depending on the ordered specification...

Page 14: ...roduct Do not stack the packing boxes containing this product too high Avoid excessive impact or vibration of the reduction gear If the packing boxes containing the reduction gear are stacked too high during transportation they may collapse and fall down causing injury or damage to the reduction gear Applying excessive impact or vibration to the reduction gear could cause damage to the reduction g...

Page 15: ...o the reduction gear Store the reduction gear under the same conditions as those before unpacking If it is left upside down it could cause damage to the reduction gear Although the reduction gear is coated with rust prevention oil before shipping it is not designed for long term storage If it is stored for a long period check the condition of the reduction gear periodically and perform rust preven...

Page 16: ...d cause injury in case the equipment goes out of control or falls off When the reduction gear is used for elevating equipment install an effective safety unit for preventing falls caused by idle running as a fail safe mechanism in case of an unexpected failure in the reduction gear If you fail to install it it could cause injury in case the elevating unit falls off 4 1 Installation environment Use...

Page 17: ...ed and manufactured based on the separately provided Outer dimensions drawings and specification sheet For type F Fig 2 6 which is structured in such a way that the lubricant cannot be sealed inside prepare the shaft installation component that has been designed and manufactured based on the separately provided Outer dimensions drawings specification sheet and catalogs for the N and E series The a...

Page 18: ...l be difficult to replace the lubricant Shaft installation component Prepare the shaft installation component for the output shaft of the reduction gear Confirm that the component is structured so that the lubricant can be sealed with an O ring or liquid sealant Confirm that the tapped hole for injecting draining grease is accessible in the shaft installation component It will be necessary for rep...

Page 19: ... B 0209 2001 6 g 4 2 3 Serrated lock washer for hexagon socket head cap screw Prepare the following serrated lock washer for a hexagon socket head cap screw recommended by Nabtesco Name Belleville spring washer made by Heiwa Hatsujyo Industry Co Ltd Corporation symbol CDW H CDW L Only for M5 Material S50C to S70C Hardness HR40 to 48 Table 4 1 Unit mm Nominal size ID and OD of Belleville spring was...

Page 20: ... the design standard of each manufacturer by referring to the dimensions listed above Failure to do so could cause the leakage of lubricant 4 2 5 Liquid sealant When sealing the shaft mounting surface of the reduction gear and shaft installation component using liquid sealants prepare the following liquid sealants recommended by Nabtesco Table 4 2 Name Manufacturer Characteristics and applications...

Page 21: ...ecified by Nabtesco VIGOGREASE RE0 Operating temperature range ambient temperature 10 to 40 C VIGOGREASE is registered trademark of Nabtesco Corporation In order to take advantage of the performance of this product use the Nabtesco specified lubricant Using other types of lubricant could cause deterioration of performance and premature damage Mixing with other lubricants could cause deterioration ...

Page 22: ...ra care so that no foreign matter adheres to the reduction gear when it is installed in the customer s equipment and filled with lubricant If foreign matter adheres it may lead to deterioration of reduction gear performance and also to deterioration of durability or premature damage The reduction gear is coated with rust prevention oil before shipping Therefore if it is used as it is the rust prev...

Page 23: ...e provided as an accessory Check the accessories according to the separately provided Outer dimensions drawings and specification sheet The contents of the packing box and shape of the reduction gear may differ from the illustration above depending on the ordered specifications Check the accessories according to the separately provided Outer dimensions drawings and specification sheet Important Ac...

Page 24: ...n it could cause injury When lifting the reduction gear be sure to use a lifter that can withstand the weight of the reduction gear Otherwise the lifter will be damaged and the reduction gear could fall down and topple over which may result in injury For types D E and H Figs 2 4 2 5 and 2 8 described in the section of 2 1 Name of each section the hollow section at the center of the reduction gear ...

Page 25: ...crew to prevent the bolt from loosening and protect the bolt seat surface from flaws Reference 4 2 2 Reduction gear mounting bolts and 4 2 3 Serrated lock washer for hexagon socket head cap screw The following are the bolt tightening torques specified by Nabtesco Be sure to check the following when tightening the bolts Table 5 1 Nominal size pitch mm Tightening torque Nm Tightening force N M5 0 8 ...

Page 26: ...tor flange already mounted In such a case it may not be possible to install the product in the customer s equipment as it is depending on the installation method and tools to be used Fig 5 1 Check the condition of your equipment and install the product using the correct procedure Fig 5 1 Important When tools interfere with the motor flange When the case installation component interferes with the m...

Page 27: ...ay be deformed which could cause deterioration of performance such as abnormal noise and torque irregularity and durability The shape of the reduction gear may differ from the illustration depending on the ordered specifications Step 2 Fit the serrated lock washer for the hexagon socket head cap screw through the hexagon socket head cap screw Reference Fig 4 2 in 4 2 3 Serrated lock washer for hex...

Page 28: ...tomer s device and the reduction gear If there is foreign matter adhering to the mounting surface the mounting surface of the reduction gear may be deformed which could cause deterioration of performance such as abnormal noise and torque irregularity and durability When installing the installation component take extra care not to cover the tapped holes for injecting draining grease If the tapped h...

Page 29: ...t can be installed as is Step 3 If necessary wipe off the grease adhering to the mounting surface of the motor flange and the reduction gear and then use a liquid sealant on this surface Reference Table 4 2 in 4 2 5 Liquid sealant Take extra care so that the liquid sealant will not leak into the reduction gear Take extra care so that the liquid sealant will not leak into the mounting bolt section ...

Page 30: ...e installed with the motor flange already mounted Using the hexagon socket head cap screw fix the motor flange and reduction gear Be sure to tighten the hexagon socket head cap screws with the specified tightening torque Reference 4 2 2 Reduction gear mounting bolts and 5 1 Bolt tightening torque If the hexagon socket head cap screws are not tightened with the specified torque the reduction gear d...

Page 31: ...When sealing with a liquid sealant When sealing the section with a liquid sealant coat the liquid sealant onto the area on the shaft mounting surface For the coating area refer to the illustration on the right Apply coating seamlessly in the coating area Take extra care so that the liquid sealant will not leak into the reduction gear or mounting bolt section For the detailed coating procedure foll...

Page 32: ... the centering location of the shaft mounting flange Check that there is no foreign matter adhering to the mounting surface If the O ring is caught by the mounting surface it could cause leakage of the lubricant If there is foreign matter adhering to the mounting surface the mounting surface of the reduction gear may be deformed This could cause deterioration of performance such as abnormal noise ...

Page 33: ... 5 2 2 Installing the input gear For straight shafts attached to motor shaft tip The following is an example when fixing the input gear to the motor shaft using a bolt Perform steps 1 to 3 by taking care regarding the following precautions Avoid impact to the motor shaft when attaching the input gear The outer diameters of the bolt head and seal washer should be smaller than the root circle diamet...

Page 34: ...l noise and vibration and also lead to damage of the motor Step 3 Fix the input gear to the motor shaft using a hexagon socket head cap screw Using a thread locking sealant for screws lock the hexagon socket head cap screw If necessary seal the area with a seal washer etc Otherwise it could cause the leakage of lubricant Check the depths of the input spline hole and motor shaft screw before select...

Page 35: ...here is no foreign matter adhering to the mounting surface If there is foreign matter adhering to the mounting surface appropriate installation accuracy cannot be obtained It could cause deterioration of performance such as abnormal noise and vibration and also lead to damage of the motor Step 3 Tighten the input gear and motor shaft using a set screw Using a thread locking sealant for screws lock...

Page 36: ...r will interfere with the spur gear and therefore the gear cannot be installed or could be damaged Step 1 Attach the draw bolt to the motor shaft Step 2 Attach the Woodruff key to the motor shaft Check that there is no foreign matter adhering to the mounting surface If there is foreign matter adhering to the mounting surface appropriate installation accuracy cannot be obtained It could cause deter...

Page 37: ...onal coupling varies depending on the motor shaft diameter Due to this the momentary maximum allowable torque or allowable acceleration deceleration torque may not be ensured Step 1 Assemble the wedge type frictional coupling into the input gear as shown in Fig 5 15 Step 2 Assemble the plate into the input gear and then temporarily secure it with the hexagon socket head cap screws Step 3 Press the...

Page 38: ...2 1 Name of each section Perform steps 1 to 4 by taking care regarding the following precautions Step 1 The coupling is stored in the packing box Check that the grease PYRONOC UNIVERSAL N 6B is coated onto the spline If the coupling is assembled without greasing the spline it could cause abnormal wear of the spline Do not disassemble the coupling Step 2 Wipe the exterior of the motor shaft and the...

Page 39: ...obtained If the motor shaft is forcibly inserted it could damage the coupling and motor If the motor shaft is not in contact with the partition plate it could damage the reduction gear Refer to Fig 5 17 Step 4 Confirm that the tip of the motor shaft is in contact with the partition plate and then tighten the hexagon socket head cap screws with the specified tightening torque refer to Fig 5 16 Tabl...

Page 40: ... and also to deterioration of durability or premature damage In case of cap A cap is attached to the insertion slot of the input gear before shipping in order to prevent the lubricant filled in the reduction gear from leaking As shown on the right remove the cap upward to prevent the lubricant from leaking from the reduction gear If the reduction gear is not vertical the lubricant will leak out wh...

Page 41: ... through the oil seals remove the input gear and wipe off the leaking lubricant with a clean cloth If you fail to perform step 2 the internal pressure of the reduction gear increases while inserting the motor If the reduction gear is operated under this condition and the temperature of the reduction gear increases the internal pressure of the reduction gear exceeds the allowable pressure range of ...

Page 42: ...as illustrated in Fig 5 22 Correct built in position Then confirm that the motor and flange surface are closely attached with each other without any tilt If there is a clearance between the motor and motor flange surface the motor could be in an incorrect position as illustrated in Fig 5 22 Incorrect built in position Do not tighten the bolt to eliminate the clearance If the motor is forcibly pres...

Page 43: ...dhering to the mounting surface appropriate installation accuracy cannot be obtained It could cause deterioration of performance such as abnormal noise and vibration and also lead to premature damage of the motor There are various ways to install the motor depending on the shape of the reduction gear or customer s equipment For the installation methods other than the above examples check the Outer...

Page 44: ...ture increases during operation and the internal pressure also increases As a result oil seals could fall off or lubricant could leak If the lubricant is not filled sufficiently it could lead to premature damage of the reduction gear 6 1 Precautions when handling the lubricant This section describes the precautions when handling lubricants Before handling the lubricant read the precautions describ...

Page 45: ...lt a physician If the lubricant is swallowed do not force yourself to vomit and consult a physician Disposal of waste grease and container It is required by law to dispose of the grease and container in the specified manner Dispose of the grease and container appropriately according to the law If anything is unclear check the disposal precautions described in the Safety Data Sheet or contact our s...

Page 46: ...the areas in the diagram Therefore if there is a blank space also fill the space Leave a space about 10 of the total volume of the internal capacity of the reduction gear the areas in the diagram and the space on the motor mounting side the areas in the diagram Be sure to fill the amount of lubricant described in the separately provided Outer dimensions drawings If there is no indication in the Ou...

Page 47: ...pace also fill the space Leave a space about 10 of the total volume of the internal capacity of the reduction gear the areas in the diagram and the space on the motor mounting side the areas in the diagram Be sure to fill the amount of lubricant described in the separately provided Outer dimensions drawings If there is no indication in the Outer dimensions drawings contact our service representati...

Page 48: ... remove the plug for tapped hole for injecting draining grease on the drain side When pneumatic pressure is used for filling the lubricant set the pressure below 0 03 MPa If you fail to remove the plug for tapped hole for injecting draining grease on the drain side the internal pressure increases As a result oil seals could fall off or the oil seal lip could be reversed If the internal pressure of...

Page 49: ...the output shaft of the reduction gear by 1 or 2 turns Do not use the motor to rotate the output shaft of the reduction gear for safety if possible If the motor is used by necessity run the motor at a low speed and never touch the rotation section Otherwise you could be caught by the rotation section which will result in serious injury Step 6 Repeat steps 1 to 5 until the lubricant is filled up to...

Page 50: ... operate the device safely by observing the following precautions Keep away from the rotation section during operation of the device or until it is completely stopped Otherwise you could be caught by the rotation section which will result in serious injury If any abnormalities such as abnormal noise or excessive vibration are found stop the operation immediately Do not start the operation before t...

Page 51: ...protective goggles gloves and safety shoes Organize the surrounding area and ensure safety to prevent secondary accidents To maintain the condition in which the device is completely stopped turn OFF the power to the customer s device and take extra care so that the power will not be turned ON by accident 8 2 Daily inspection Check the following items every day before starting the operation Table 8...

Page 52: ...t tag out so that the power will not be turned ON by accident Otherwise you could be caught by the rotation section which will result in injury If the lubricant gets in your eyes or touches your skin it could cause inflammation When the safety cover near the reduction gear has been removed for replacement maintenance of lubricant be sure to return them to their original positions after the procedu...

Page 53: ... sprays out which could cause burns Step 4 Attach a grease nipple etc to the tapped hole for injecting draining grease and then attach the injector Refer to Fig 8 2 Step 5 Using the injector or the like fill the lubricant through the tapped hole for injecting draining grease on the supply side When filling the lubricant be sure to remove the plug for tapped hole for injecting draining grease on th...

Page 54: ...on section Otherwise you could be caught by the rotation section which will result in serious injury Step 9 Repeat steps 3 to 8 until the reduction gear is filled with the same amount of lubricant as that was drained Step 10 It is recommended that the inside of the reduction gear is flushed so that the lubricant can be replaced more efficiently Remove the injector from the tapped hole on the suppl...

Page 55: ... s parameter settings Make sure there are no components resonating in unity Make sure the input gear is appropriately installed on the motor Make sure there is no damage to the surface of the input gear teeth Make sure the input gear specifications precision number of teeth module shift coefficient dimensions of each part are correct Make sure the flange and other components are designed and manuf...

Page 56: ... Sales Office 21st Fl Dojima Avanza 1 6 20 Dojima Kita ku Osaka 530 0003 Japan TEL 81 6 6341 7180 FAX 81 6 6341 7182 Tsu Plant 594 Icchoda Katada cho Tsu Mie 514 8533 Japan TEL 81 59 237 4600 FAX 81 59 237 4610 Service Center 594 Icchoda Katada cho Tsu Mie 514 8533 Japan TEL 81 59 237 4672 FAX 81 59 237 4697 Nabtesco VIGOGREASE RV are registered trademarks or trademarks of Nabtesco Corporation The...

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