Installation and operating instructions for R+W Servomax - Jens-S
Contents
1. Picture 18 Lever Screwdriver Disengagement torque setting Picture 19 Picture 20 rear 1 adjustment nut a 12 adjustment range 11 locking screw 13 marking 3 steel actuation ring Positive stop Picture 21 At ES 2 couplings the slot of the clamping hub serves as a marking 13 adjustment actuation range path R W torque limiters are factory set to the customer specified disengagement torque which is marked onto the coupling The adjustment range min max is also marked on the adjustment nut 1 The customer can adjust the disengagement torque as long as it is in the range 12 indicated on the adjustment nut Tkn max spring force IEY The adjustment range may not be exceeded while re adjusting To adjust the disengagement torque loosen the locking screws 11 and rotate the ad justment ring using a spanner wrench to the desired new setting Tighten the 3 locking screws 11 and test the coupling Diagramm 1 spring path Caution R W torque limiters incorporate disc springs that exhibit a special spring characteristic It is im portant to stay in the max min range of the coupling Diagramm 1 Mounting instructions ESL 0 Distance table 3 mounting m Slide hub on to shaft and tighten at specific position with fas Access hole Screws DIN 916 tening screws DIN 916 The screws are for the axial fixation of the hub The distance 0 regarding table 3 page 3 must be met at2. 42 52 62 67 84 105 The installation length G results out of the distance P 2x0 Do always notice the max critical speed given by the manufacturer An abrasion of the elastomer insert can decrease the max critical speed Do constantly check the elastomer inserts for abrasion A fast turning bended tube can cause a major oscillation Rework or replacement of the tube Lateral misalignment A Kr Angular misalignment A Kw Axial misalignment A Ka A Kr ca 10 mm x G m A Ka ca 2 mm m Pictures 13 R W 5 Mounting instructions ES 2 E l Picture 14 Proximity switch Accesshole J N Yer f ZIY 7 Spindle a m vit fe WA T 5S L Pl E1 Screws paer ISO 4762 Actuation path ae E4 Screws ISO 4762 Single position Multi position 1 Adjustment nut 2 Spring 3 Actuation ring 4 Balls 5 Detents 6 Proximity switch Picture 15 In a torque overload with the single position design standard and multi position design the spring disengages to allow the balls to come out of their detents separating the drive and driv en elements Very low residual spring pressure remains so that the coupling will re engage once the torque is reduced below the overload setting Re engagement may only be effected at low speed Full disengagement The R W full disengage torque limiting coupling can be re engaged in six differ
3. Are 650 810 170 1060 1350 190 1900 2150 400 3900 4900 10000 12400 20000 25000 Distance mm A 24 26 31 37 46 57 lateral BH mm 0 18 0 14 0 35 0 2 0 18 0 35 0 25 0 2 0 4 0 5 0 3 0 5 0 3 0 6 0 4 angular E degree uga 1 0 8 1 2 1 0 8 1 2 1 0 8 1 2 1 5 1 1 5 1 1 5 1 axial Ba mm 2 2 2 3 4 5 Table 2 CAUTION The maximum permissible misalignment values in the chart are based on the following parameters Nominal torqueTKN rational speed n 1500 rpm and a ambient temperatur of 10 to 30 C Mounting preparation IEY All mounting surfaces including shafts bores keys and key ways must be clean and free of burrs nicks and dents Inspect shaft diameters coupling bore diameters key and key way dimensions and tolerances All R W coupling bores are ma chined to ISO tolerance H7 Clearances between the shaft and hub are maintained to be within 0 01 and 0 05 mm A light coating of oil is recommended to ease the mounting process and will not affect the clamping force of the hub A CAUTION Distance Do not use sliding grease or oils or grease with molybdenum di see Table 2 Mounting Force sulfide or other high pressure additives A To achieve zero backlash the coupling hubs must be pressed together with an axial force F compressing the elastomer ring Cleaning the elastomer ring and hubs and applying a light film of oil will aid in the a assembly process Picture 3 7 4 i N Caution Use PU compatib
4. declaration According to EG guidelines for machinery 2006 42 EG Appendix II B In the sense of machine guidelines MR shaft couplings are no machines but components for the installation in machines Their putting into operation is subject to the fulfillment of all requirements of machine guidelines by or after integration in the final product es 2x Scews ISO 4762 2x EK 2 Clamping hub 1x Elastomer insert Model EK 6 2 X Conical clamping ring 2 X Conical clamping hub 1x Elastomer insert 12 20x Screws ISO 4762 2x EKL Clamping hub 1x Elastomer insert 2x Screws ISO 4762 Elastomer insert screws ISO 4762 1x EK 1 Hub 1x Elastomer insert 3x Screws DIN 916 1x Safety part EKL Clamping hub Torque limiter section with clamping hub Elastomer insert screws ISO 4762 a iT 2x Elastomer insert 1x Intermediate tube 4x Screws ISO 4762 2x Clamping split hubs 2x Clamping split hubs 2x Elastomer inserts 1x Expanding intermediate tube 6x Screws ISO 4762 Pictures 1 R W 1 Function The equalizing element of EK couplings is the elastomer inse
5. 35 Nm 55 Nm 60 Nm 100 Nm 160Nm Expanding hub shaft M4 M5 M6 M8 M10 M12 M16 M16 Model EK7 4 Nm 9 Nm 12 Nm 32 Nm 60 Nm 110 Nm 240 Nm 300 Nm Torque limiter section with M4 M4 M6 M8 M10 M12 M16 M16 M20 clamping hub Model ES2 4 Nm 4 5 Nm 15 Nm 40 Nm 70 Nm 130 Nm 200 Nm 250 Nm 470 Nm M4 M4 M5 M6 M8 M10 TOPINE NUN Ea E5 4Nm 45Nm 8Nm 18Nm 35Nm 70Nm PESE 10 20N 15 30N 25 50N 30 60N 35 70N 80 200N 200 500 N 500 1000 N full disengagement Distance ES2 o 0 7 1 1 0 7 13 1 3 Table 3 Mounting EK 1 N Access hole Slide a coupling half onto the shaft to the correct axial position Tighten the set Set screws DIN 916 Mounting EKL EK 2 Pictures 7 Access hole M A E1 Set screws ISO N Dismounting Access hole E1 Set screws ISO 4762 screw s to the appropriate torque using a torque wrench Insert the elastomer ring and press the two coupling halves together Make sure that the fit length A is maintained See table 1 Mount the assembled coupling onto the second shaft and tighten the set screw s Loosen the set screws and remove the coupling Use an appropriate tool that will not damage the coupling to pry the coupling halves apart Slide a coupling half onto the shaft to the correct axial position Using a torque wrench tighten the clamp screw E to the appropriate torque indicat ed in Table 2 Insert the elastomer ring and press the two coupling halves together Ensure that the fit length A i
6. Installation and operating instructions for R W Servomax Elastomer couplings Please carefully and completely read the following installation operation and maintenance procedures for the R W SERVOMAX elastomer couplings Failure to comply with these procedures may result in the failure of the coupling Installation of the couplings should be performed by a qualified technician SERVOMAX couplings may only be used in accordance with the technical data supplied in the catalog This installation and operation instruction does not apply for ATEX Elastomer coulings See additional instruction for these couplings General functioning Safety warning Rotating couplings can be very dangerous Proper guarding should be in place at all times and is the responsibility of the machine builder user or opera tor Do not approach or touch a coupling while It is rotating Make sure that the machine is locked out and cannot be accidentally started during installa tion or maintenance of the coupling ic Indicates important points Models 2x EK 1 Hub TN 1x Elastomer insert WN 2x Set screws DIN 916 Model EK 4 1x EK2 Clamping hub 1x Elastomer insert 1x Conical hub 1x Screws ISO 4762 Model EK 7 1x EKL Clamping hub 1 x Expanding hub shaft 1x Elastomer insert 2x screws ISO 4762 Clamping split hubs Manufacturer s
7. any time bacause the safety part is moving after disengagement along the actuation path Ka Spindle Dismounting Loosen the screws And pull of the hubs while using an ap propriate tool CAUTION The point of disengagement must be tested Picture 22 before shipping the machine Latching function Disengagement torque setting Picture 23 Engaged Disengaged Engaged The ESL torque limiter is axactly pre adjusted by the manufac turer and is permantent secured against readjusting The steel adjustment nut will be solid connected to the base element A re adjusting of the desengagement torque is A not possible actuation path Latching balls in base element Latching balls in hub This safety coupling works at a ball latching system High dura The overdrive must be shut of immediately ble hardened steel balls are latching into each other A latch is followed by another Multi position R W 7 Maximum Shaft misalignment R W SERVOMAX elastomer couplings compensate for lateral axial and angular shaft misalignment E A es d lateral misalignment axial misalignment pn angular misalignment In Table 2 you will find the maximum permissible values for the three axis of misalignment It is important to remain within these limits to ensure long life and proper operation of the coupling If several misalignment types occur at the same time it is necessary to reduce the m
8. aximum permissible misalignment values The percentage of the maximum value summing up actual misalignments must not exceed 100 CAUTION A Lateral misalignment has a negative effect on the service life of the elastomer Exact alignment of the coupling considerably increases the service life of the elastomer By reducing or eliminating lateral misalignment the radial load of the adjacent bearings is eliminated increasing service life and reducing heat For drives running at high speed we recommend the alignment of the R W coupling with a dial indicator Picture 23 24 Mounting with intermediate flange If an R W SERVOMAX coupling is to be installed within an ioe Picture 24 intermediate flange it is important that the drive and driven Intermediate flange is fixed shafts align as precisely as possible The flange must be pre cision machined with centering pilots and the mounting sur rap D faces must be parallel to each other and perpendicular to the Sine E A shaft axis g Caution a l Dial gauge or lever cauge Do check fit length A indicated in table 2 Magnet measuring support The elastomer insert must be axially movable Open installation If the R W SERVOMAX coupling is to be mounted between a A Picture 25 foot mounted motor and a gearbox for example care must be i taken to ensure that the gearbox and motor shafts are in align ment and the devices are permanently mounted 90 turn is
9. ent positions or every 60 degrees with low press in force E Marks on the actuation ring and body 13 of the coupling must line up and indicate the re engagement points 17 As of size 60 and up the re engagement can be done with 2 lever which will be supported at a recess on the adjustment nut picture 18 Screwdrivers can be used as a lever CAUTION Re engagment should only be per formed when the coupling stands still and not rotating 6 R W Mounting Slide the coupling on the shaft ends to the proper axial position Using a torque wrench tighten the clamp screws E1 E4 to the correct tightening torque as indicated in the table page 3 A CAUTION Both clamping hubs have different screws and different tightening torques Dismounting Simply loosen the clamp screw E1 E4 and re move the safety coupling Emergency cut off The axial path of the actuation ring acti vates the mechanical switch or the proximity sensor VAN CAUTION Upon assembly it is absolutely neces sary to check the function of the switch 100 Full disengagement Picture 16 J o A ait MU disengaged With this design when a torque overload is detected the disc spring completely flips over and places no residual spring pres sure on the actuation ring The drive and driven elements are completely separated Re engagement of the coupling is not auto A matic and must be performed manually Picture 17 18 Picture 17
10. le greases such as e g vaseline Contact surfaces Picture 3 2 R W Machining the pre bored hubs CAUTION A or death may result from flying debris During manufacturing the concentricity and run out of the coupling hub are precisely controlled Applying excess forces on the jaw end of the hub will deform the coupling negatively affecting its performance Custom modification of the coupling hub is possible by the customer The hub H may be custom machined to a maximum dimension H see catalog for specific values The customer assumes all responsibility for the performance of the cou pling anytime a modification is made R W cannot guarantee the performance of the coupling once the customer performs any modification to the original design Consult your R W representative for custom design technical assistance Screws Tigthening torque The maximum permissible bore diameters D1 and D2 see catalog must not be exceeded The coupling may burst if these values are exceeded Serious injury picture 4 D H7 Do not clamp here ie l picture 5 800 1500 2500 Clamping models E1 M2 M3 M4 M5 M6 M8 M10 M12 M16 M16 M16 M16 M24 EK2 EKL EKH EZ2 EZV 0 6 Nm 2 Nm 4 Nm 8 Nm 15 Nm 35 Nm 70 Nm 120 Nm 290 Nm 300 Nm 300Nm 300Nm 980 Nm Conical clamping hubs M3 M4 M5 M5 M6 M8 M10 M10 M12 M16 Model EK6 2 Nm 3 Nm 6 Nm 7 Nm 12 Nm
11. proper tool The EK6 uses a clamping ring with axial fastening screws E Slide the coupling hub onto the first shaft using a torque wrench uniformly tighten the clamp ing screws E using a cross wise tightening pattern until all the clamping screws are evenly tightened to the correct tightening torque as given in table 3 The clamping ring will come to a positive stop 1 This avoids excessive loading of the clamping ring and improves the TIR Total Indicator Run out of the coupling on the shaft Insert the elastomer ring The other coupling hub is mounted onto the second shaft end using the same procedure Press the two cou pling halves together and ensure that the fit length A is maintained See Table 1 Dismounting Pull the coupling halves apart and remove the axial fastening screws E2 Threaded holes 3 have been machined into the hub to accept the fastening screws which will now be used to push off the tapered ring picture 4 CAUTION Prior to re assembly make sure the fastening screws are in the proper holes to draw in the taper ring Mounting EK 7 Pictures 11 Mounting EZ 2 EZV Overall length G Pictures 12 E1 Screws ISO 4762 Distance P Overall length G min Max moveable tube aaa AlN Machine i Motor g fixedtube E5 Screws ISO 4762 is A Distance P min P max ATTENTION Mounting of
12. rt It transmits torque without backlash or vibration The elastomer insert defines the characteristics of the entire drive system Series 2 800 Series 2500 9500 coupling assembly includes 5 individual elastomer segments The coupling is backlash free due to a pretension of the elastomer insert between the two coupling halves SERVOMAX couplings compensate for lateral angular and axial misalign ment Specifications of the elastomer inserts Temperature range Relative damping w Features Material A 98 Sh A red TPU 0 4 0 5 30 C to 100 C high damping B 64ShD green TPU 0 3 0 45 30 C to 120 C high torsional stiffness C 80ShA yellow TPU 0 3 0 4 30 C to 100 C very high damping Shore hardness 64 Sh D Shore hardness 80 Sh A Maximum transmittable torques Misalignment values Series Model series EK Type Elastomer insert Nominal torque Nm 160 200 42 Max torque Nm 320 400 85 Distance mm 20 lateral EH mm 0 15 0 12 0 3 angular ES degree 1 0 8 1 2 axial Bd mm 2 Series Model series EK 800 2500 4500 9500 Type Elastomer insert A B C A B C A B C A B A B A B Nominal torque Nm LPR 325 405 84 530 660 95 950 1100 240 1950 2450 5000 6200 10000 12500 Max torque Nm
13. s maintained See table 1 Mount the assembled coupling onto the second shaft and tighten the clamp screw E Dismounting Simply loosen the clamp screw E and remove the coupling Use an appropriate tool that will not dam age the coupling to pry the coupling halves apart R W 3 Mounting EKH Picture 8 Mounting EK 4 Access hole E1 Screws ISO 4762 Pictures 9 Mounting EK 6 Pictures 10 4 R W xX XT Serey E ts Or KS D Fanuc Motor Cone 1 10 The coupling needs to be pre mounted The pre mounted coupling can be set in place radialy under consideration of distance P Now the two split hubs can be mounted while using the locking screws E1 applying the right tightening torque Distance A as shown on table 2 must be kept Dismounting For dismounting simply loosen the screws E1 Mounting of the clamping hub Slide the coupling on the shaft ends at the right axial position thighten the mounting screw E1 to the speci fied tightening torque as shown in the table 3 Mounting of the conical hub After inserting the key into the keyway of the motor shaft slide the coupling hub on the shaft Check if the conical hub has a proper seat on the shaft Now the nut 3 can be tightened on the motor shaft using the exact tightening torque specified by the motor manu facturer Dismounting Loosen the screws of the clamping hub and demount the coupling with the
14. sufficient Caution A Do check the fit length A indicated in table 2 The elastomer insert must be axially movable Maintenance R W SERVOMAX couplings are maintenance free as long as they are properly mounted and the maximum misalignment values are not exceeded Extreme ambient or installed conditions such as very high or low temperatures acidic or basic solutions cutting fluids etc may cause wear and tear on the elastomer insert Regular inspection of the insert is recommended If replacement is required use only R W original spare parts R W Antriebselemente GmbH The above mentioned information is based on our present know ledge and experiences and does not free the user of his own regu Phone 49 0 9372 9864 0 Telefax 49 0 9372 3864 20 lar checks A legally binding guarantee is not given even in regard o info rw kupplungen de www rw couplings com to protection rights of Third parties COUPLING TECHNOLOGY da 558 01 11 5 000
15. the clamping hub Slide the coupling onto the shaftends atthe right axial position tighten the mounting screw to the specified tightening torque Dismounting of the clamping hub For dismounting loosen the mountingscrew E3 Mounting of the expanding shaft Push the shaft hub into the bore at the right axial position thighten the mountingscrew E3 to the specified tightening torque Dismounting of the expanding shaft For dismounting loosen the screw E3 a few turns By putting pressure on the screwhead the inner cone slides out of Its Sleeve The shaft is now loose Mounting The coupling needs to be pre mounted The pre mounted coupling can be set in place radial under consideration of distance P Now the two split hubs can be mounted while using the locking screws E1 applying the right tighten ing torque Distance A as shown on table 2 must be kept Adjusting the length of the EZV After loosen the screws E5 the axial adjustable tube 1 can be pushed into the other intermediate tube 2 After receiving the wanted axial position the fastening screws E1 E5 can be fastened under consideration of the specitic tightening torque see tabele 3 The tube of the moving part is exactly conducted in the fixed part of the coupling A high concentri city is ensured Dismounting Loosen the screws E1 of the hubs and demount the shaft Series 10 20 60 150 300 450 800 2500 4500 9500 Distance 0 16 6 18 6 32 37
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