INSTALLATION AND OPERATING INSTRUCTIONS FOR R+W
Contents
1. INSTALLATION WITH INTERMEDIATE FLANGE OPEN INSTALLATION If an R W metal bellows coupling is to be installed within an in If the R W coupling is to be mounted between a foot mounted termediate flange itis important that the drive and driven shafts motor and a gearbox please take extra care during installation are aligned as precisely as possible The flange must be precision Ensure that the gearbox and motor shafts are properly aligned machined with centering pilots and the mounting surfaces must and the devices are permanently mounted be parallel to each other and perpendicular to the shaft axis Figure 19 Figure 20 Intermediate flange is fixed centering pilot dial indicator Magnetic base MAINTENANCE R W metal bellows couplings are maintenance free as long as they are properly mounted and the maximum misalignment values are not exceeded R W Antriebselemente GmbH The above mentioned information is based on our present Alexander Wiegand Str 8 63911 Klingenberg knowledge and experiences and does not free the user of his own regular checks A legally binding guarantee is not given Phone 49 9372 9864 0 Fax 49 9372 9864 20 a a n even in regard to protection rights of third parties A POPPE POTTHOFF COMPANY info rw kupplungen de www rw couplings com 4 RW COUPLINGS COM 11 2014 75002. Loosen the clamping screws C Use the three jack screws 6 to back off the conical clamping ring and remove the coupling Evenly loosen the fastening screws C approx 2 complete turns and back J out the conical clamping ring with the removal jack screws 6 After re 5 moval return the removal jack screws to their original position EXPANDING SHAFT CONNECTION MODELS BK7 MK3 MK6 Mounting Completely insert the expanding shaft side of the coupling into the hollow bore Us ing a torque wrench tighten the clamping screw D to the proper tightening torque as indicated in table 1 Next insert the shaft end or encoder shaft into the other side of the coupling Ensure that the shaft has been inserted to the proper axial position and that no residual axial forces remain on the coupling Using a torque wrench tighten the clamping screw A to the proper tightening torque as indicated in table 1 Dismounting Simply loosen the clamping screws A and D and remove the coupling It may be nec essary to apply axial pressure to the clamping screw D to remove expanding shaft RADIAL SET SCREW CONNECTION MODELS MK1 MK4 Mounting Slide the complete coupling onto the shaft end to the proper axial position Using a torque wrench tighten the set screw s E to the proper tightening torque as indicated in table 1 Insert the second shaft end to the proper axial position and ensure no residual axial forces exist on the couplin
3. INSTALLATION AND OPERATING INSTRUCTIONS FOR R W METAL BELLOWS COUPLINGS MODELS BK MK GENERAL FUNCTIONING Please carefully and completely read the following installation operation and maintenance procedures for the R W safety couplings Failure to comply with these procedures may result in poor performance and or failure of the bellows coupling Installation of the bellows couplings should be per j formed by a qualified technician e Additional information can be found in the individual product catalog BK MK TRANSPORT R W bellows couplings are delivered ready for installation Af ter incoming inspection the coupling should be stored in its original packaging until ready for installation A copy of this installation and operating manual should be kept with the cou pling GENERAL FUNCTION R W metal bellows couplings are flexible shaft couplings The highly flexible torsionally rigid stainless steel bellows provides backlash free transmission of torque The metal bellows com STANDARD HUB SHAFT DESIGNS R W metal bellows couplings must be used in accordance with the technical data in the catalog Subsequent modifi cation of the coupling is not recommended and will void the warranty flange mounting tapered hub MOUNTING PREPARATION When mounting and dismounting the bellows may only be deformed 1 5x the maximum permissible misalignment values specified in the catalog It is important to
4. aft is machined to ISO tolerance h7 The overall clearance between the hub and shaft is maintained to 0 01 0 05 mm A light coating of machine oil is recommended to ease the mounting process and will not affect the clamping force of the hub a Caution Oils and greases containing molybdenum a disulphide or other high pressure additives should not be used MOUNTING FLANGE MODEL BK1 Mounting The BK1 can be piloted with either the ID or OD of the coupling hub Mount the cou pling to the customer supplied flange and secure with mounting screws 2 Tighten the mounting screws to the correct tightening torque supplied by the customer with a torque wrench Dismounting Simply loosen the flange mounting screws and remove the coupling Mounting Prior to mounting make sure that the shafts to be connected do not exceed the angular or lateral misalignment limits for the coupling to be used This data can be found in the catalog Slide the metal bellows coupling onto the motor shaft end When the correct axial position has been reached tighten the clamping screw A to the correct tightening torque as indicated in table 1 with a torque wrench Insert the spindle shaft into the other end of the coupling to the proper axial position Make sure that the coupling is free of any axial forces before tightening Tighten the clamping screw A as above using a torque wrench to the proper tightening torque For the split hub model it is necess
5. ary to maintain the proper separation between shaft ends dimension H in the catalog Caution For the split hub design the shafts must extend into the cou pling to the full width of the fully split clamping hubs Dismounting Simply loosen the clamping screws and remove the coupling TAPERED CONICAL CONNECTION MODEL BK3 Mounting Prior to mounting make sure that the shafts to be connected do not exceed the angular or lateral misalignment limits for the coupling to be used Slide the coupling onto the motor shaft to the proper axial position Using a torque wrench tightening the clamping screws B in 3 steps with 1 3 2 3 and full tighten ing torque in a circular pattern not cross wise Tightening torque of the clamping screws Is shown in table 1 Caution Overtightening of the clamping screws B can cause damage Dismounting Loosen the clamping screws B evenly Use the three removal jack screws to re move the conical sleeve Pay attention to the equal force distribution of the removal Jack screws Grease on the jack screw heads will enhance the friction This results in less force being required to remove the conical sleeve i Caution Prior to re assembly make sure the three jack screws 4 are e J turned back to their original position TAPERED HUB CONNECTION MODEL BK4 Mounting Prior to mounting make sure that the shafts to be connected do not exceed the angular or lateral misalignment limits for the
6. avoid any excessive force when mounting the coupling All mounting surfaces in cluding shafts keys bores and keyways must be clean and free of burrs nicks and dents Inspect shaft diameters coupling bore diameters key keyway dimensions and tolerances All R W coupling bores are machined to ISO tolerance H7 The ex panding shaft of the MK3 is machined to ISO tolerance f7 and RW COUPLINGS COM clamping hub conical clamping ring SAFETY ALERT Rotating couplings can be very dangerous Proper d j guarding should be in place at all times and is the re sponsibility of the machine builder user or operator Do not approach or touch a coupling while it is rotating Make sure the machine is locked out and be accidentally started during installation or maintenance of the coupling MANUFACTURER S DECLARATION According to EG guidelines for machinery 2006 42 EG Ap pendix IIB As per machinery guidelines MR shaft couplings are not con sidered machines but rather components for installation in a machine Their putting into operation is subject to the fulfill ment of all requirements of machinery regulations by or after integration into the final product pensates for lateral axial and angular misalignment with very low restoring forces Several different hub designs are avail able to suit a variety of applications tapered conical sleeve expanding shaft radial set screw the BK7 expanding sh
7. coupling to be used This data can be found in the catalog Slide the metal bellows coupling onto the motor shaft end When the correct axial position has been reached tighten the nut 5 to the correct tightening torque as specified by the customer with a torque wrench Insert the second shaft into the other end of the coupling to the proper axial position Us ing a torque wrench uniformly tighten the clamping screws B using a cross wise tightening pattern as explained for the BK3 until all the clamping screws are evenly tightened to the correct tightening torque as specified in table 1 Dismounting Remove the conical sleeve as described for the BK3 To dismount the other end loosen the nut 5 that is axially securing the tapered shaft Remove the tapered shaft with an appropriate tool 2 Figure 9 9 L T Spindle split hub Figure 11 Figure 12 Fanuc Motor RW COUPLINGS COM CONICAL CLAMPING RING CONNECTION MODEL BK6 AXIAL BLIND MATE Mounting The BK 6 uses a conical clamping with axial fastening screws Slide the coupling half onto the motor shaft to the proper axial position Using a torque wrench tighten the clamping screws C in 3 steps with 1 3 2 3 and full tightening torque in a circular pattern not cross wise Tightening torque of the clamp ing screws are given in table 1 Dismounting Loosen the motor mounting screws Remove the motor together with the male tapered segment
8. d tighten the clamping screw to the proper tightening torque using a torque wrench The maximum misalignment values of the coupling will not be affected by the pre tensioning IEE RW COUPLINGS COM MK5 BK5 Hog press fit length A il Figure 16 Bellows coupling Miniature bellows coupling Single position standard Multi position Multi position standard Single position Figure 17 Pre tensioning F SCREW TIGHTENING TORQUE PRE TENSIONING l 5 10 15 20 45 100 SERIES BKC BKS 15 3 6 150 300 500 20 200 400 1000 SERIES BKL 2 4 55 10 gt 15 1 3 I GO 80 150 300 15 30 o 80 150 200 300 500 800 1500 4000 6000 10000 Clamping screws X x M2 M2 M2 5 M3 M4 M4 M5 M6 M8 M10 M10 M10 M10 M10 M12 M12 M12 M12 M16 M16 M20 M24 M24 M30 A Tightening torque Nm x x 0 43 0 43 0 85 23 4 45 8 15 40 50 70 75 85 70 120 120 130 125 200 250 470 1200 1200 2400 Clamping screws X X X X X X X x M4 M5 M5 x X X x M6 M6 x M8 x M8 M10 M12 M16 M16 M16 B Tientening wore Nea IE TIS xe xe ee A Ge ee ae ale es to fo ao ETO Clamping screws x X x X X X X x M4 M5 M5 x X X x M6 x x M8 x M8 x X X X x C Mighteming tone Ninn I xe lax eel x lca Kennex aS G35 le S
9. e Ml Xe x vee wie er eT nn Scent e a on ee xa ex X Clamping screws X x M3 M3 M4 M4 M5 M6 M5 M6 M8 x X X x M10 x x M12 x X X X X X X D Mehtening torgue Niao Xue E E AE S E EA E E E T E N xen E x Clamping screws M2 M2 5 M3 M3 M3 M4 M5 M6 x X X X X X X X X X X X X X X X X X E Tightening tordue Nm 1O35 O75 I3 IE IT Psy EA E E a E E S I T Ea ee S E E aa x F oer nes X x 04 x 05 05 07 L 05 O07 1 1 X X X 1 X X 1 x 12 x X X X X MAXIMUM SHAFT MISALIGNMENTS hace R W metal bellows couplings compensate for lateral axial and angular shaft misalignment simultaneously a Inthe section Technical Information within the product U catalogs you will find the maximum permissible values HHE Lateral misalignment A Kr for the three types of misalignment It is important to remain within these limits to ensure long life and proper operation of the coupling l g a Caution Lateral misalignment has a negative ef PRHE Ta Axial misalignment A Ka fect on the service life of the bellows Exact align o ment of the R W metal bellows coupling considerably increases the service life of the coupling By reducing or elimi nating lateral misalignment the radial load on the adjacent bear FE Angular misalignment A Kw ings is eliminated while increasing service life and reducing heat lt For high speed applications we recommend aligning the R W coupling with dial indicators or a laser alignment tool
10. g Tighten the set screw s using the same procedure as on the first side For series 10 and smaller couplings each hub has one set screw series 15 and larger have two set screws per hub 120 de grees apart Series 10 and smaller 1 x screw per hub Series 15 and up 2 x screws per hub 120 degrees apart Dismounting Simply loosen the set screw s E and remove the coupling R W couplings incor porate a unique dismounting groove that provides clearance for any burr caused by the setscrew 9 Figure 13 Figure 14 Hollow shaft Hub length Figure 15 Dismounting groove ISO 4029 E A shaft groove or flat is not required BLIND MATE CONNECTION MODELS MK4 MK5 MK6 BK5 BK6 Mounting A shaft groove or flat is not required Prior to mounting it is necessary to take into consideration the overall length of the assembled coupling The blind mate coupling requires a specific pre tensioning F between the two coupling halves to ensure back lash free operation Mount the female bellows body onto the spindle shaft to the proper axial position Tighten the clamping screw s per the mounting instructions for the coupling hub design Mount the male tapered segment onto the motor shaft The proper axial position of the coupling segment on the motor shaft is when the motor Is mounted and the coupling is compressed by the proper pre tensioning value F When the coupling segment is properly positione
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