DIST. AUTORIZADO MEX (55) QRO (442) MTY (81) Edition 10/2005

Transcription

1 dition /0 IST. UTORIZO X () 1 QRO (4) TY (81) 8 4

2 G R W H T h e o m p a n y GRWH GmbH was founded in 10. The idea of new, innovative products has made GRWH a recognized partner in the machine tool industry. We are a dynamic, spirited and fast growing company with clear goals and open mind that is reflected in the architecture of our new headquarters. Our Goals To add value for our customers by providing innovative product solutions To develop solutions in cooperation with our customers Satisfied customers Our new headquarters in Grosswallstadt, Germany Our dvantages now-how, innovative designs and cutting edge manufacturing plants Hamburg Berlin ustomer oriented employees Technical assistance and service, both locally and internationally Qualified sales force Frankfurt Grosswallstadt Prague hotesov Pilsen conomic stability Worldwide presence with subsidiaries and dealers GRWH - You an Rely On Us! unich s.r.o. We are certified according to IN N ISO 9001 (ert.-no. 00-) IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt

3 Backlash-free Servo-insert ouplings Product Range Special Features Backlash free Simple, plug-in mounting Vibration damping ompensation of radial, axial and angular misalignment Transmission of torque values between 0. and 0 Nm ommon pplications ncoder Precision drives Feed drives Grinding and milling spindles achine tools Packaging machines Industrial robots Transfer lines ulti-spindle heads Wood processing equipment Textile machinery onveying equipment inear motion easuring equipment and controls Test rigs /GS miniature iniature Servo-insert oupling with set screw style hubs Servo-insert oupling with shrink disc style hubs SS/ Technical ata Page 4 Technical ata Page 8 /GS Servo-insert oupling with clamping style hubs and single slit Technical ata Page High Speed Servo-insert oupling with shrink disc style hubs for short spindles acc. to IN 900 SS/-P Technical ata Page 9 S Servo-insert oupling with clamping style hubs and dual slits Technical ata Page ombination Servo-insert oupling and zero backlash torque limiter Technical ata Page /S S/R Servo-insert oupling interchangeable with competitor s Technical ata Page ombination Servo-insert oupling and zero backlash ball detent torque limiter Technical ata Page X/S Technical information Page 1 hecklist for ordering Page 1 The information in this catalogue contains product descriptions and does not constitute any specific promises. The user must define and check the technical features for use in each specific application. ll is subject to change without notice. Only individual agreements are binding for products supplied. Zero backlash torque limiters are critical components in potentially dangerous areas and need to be protected against unintended contacts during operation. IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt

4 Backlash-free Servo-insert oupling /GS I G (IN 9) Ø Ø 1 H Ø H 1 keyway acc. IN 88-1 optionally Technical series /GS Nominal torque (Nm) TN ( Sh ) oment of inertia of coupling ( - kgm ) J 1) Tightening torque of screws (Nm) Weight per hub (app. g) m ax. speed (rpm) nmax Standard shore hardness 0, 0,04 1, 0, , 0, 1,, 00 9,0, 1,08,, SH (yellow) imensions (mm) series /GS Ø 1 H / Ø H I G (IN 9) Hub material min. - max. 1 -, 1x - 8, 1x x4 x aluminium alloy - x 8 8- x Bore range 1/ and corresponding transmissible torque values (Nm) of the coupling 9 Ø 0,1 Ø 0,4 0,4 Ø 4 0, Ø 0, 1, Ø 1,,, Ø 1, Ø8, 9 9 Ø 9, 1 Ø Ø Ø 1,,, 9 Ø Ø Ø 1 Ø Ø,,,, Ø Ø Ø Ø 1) oment of inertia and weight (mass) are calculated with reference to the largest bore size. Ordering /GS - H - H - xxxxx Bore size 1 Bore size dditional details, e.g. different shore hardness (p. ), keyway IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 ompact design conomically priced xial assembly Vibration damping lectrically isolating 4 info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt

5 Backlash-free Servo-insert oupling /GS I G (IN N ISO 4) ( IN N ISO 1) Ø Ø 1 H Ø H Ø H keyway acc. IN 88-1 optionally Technical series /GS Nominal torque (Nm) TN ( Sh ) oment of inertia of coupling ( - kgm ) J 1) Tightening torque of screws (Nm) Weight per hub (app. g) m ax. speed (rpm) nmax Standard shore hardness 9 0, 0,04 0, 0,9 00 1, 0, 0,, 000,0 1,08 0,, 000,, SH (yellow) imensions (mm) series /GS Ø 1 H / Ø H I G (IN N ISO 4) H (clearance diameter) Hub material min. - max. 1-4,, 1,, - 8,, 9 4-,,, aluminium alloy 9-, Bore range 1/ and corresponding transmissible torque values (Nm) of the coupling 9 Ø 0,1 Ø 0,4 0,4 Ø 4 0, 0,9 1 Ø 0,9 Ø 1, Ø 1,1,4 Ø8, Ø 9,, Ø,, Ø,8, Ø 1, Ø, Ø, Ø 1, Ø, Ø Ø Ø 1) oment of inertia and weight (mass) are calculated with reference to the largest bore size. Ordering /GS 9-4 H - H - xxxxx Bore size 1 Bore Size dditional details, e.g. different shore hardness (p. ), keyway IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 conomical hub design Installation-friendly lectrically isolating Vibration damping Fail-safe design info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt

6 Backlash-free Servo-insert oupling S I G (IN N ISO 4) Ø Ø 1 H Ø H ØH keyway acc. IN 88-1 optionally Technical series S Nominal torque (Nm) TN ( Sh ) oment of inertia of coupling ( - kgm ) J 1) Tightening torque of screws (Nm) Weight per hub (app. kg) m ax. speed (rpm) nmax Standard shore hardness 1, 0,00 0, ,0 0, ,1 0, , 4 0, 000 1, ,4 000,1 84,0 00,, 00 SH (red) imensions (mm) series S Ø 1 H / Ø H l G (IN N ISO 4) H (clearance diameter) min. - max. -, Hub material aluminium alloy steel Bore range 1/ and corresponding transmissible torque values (Nm) of the coupling Ø Ø Ø Ø Ø 1, 1, 1, 1, Ø Ø Ø Ø Ø Ø Ø Ø Ø Ø Ø Ø Ø 44 Ø Ø 0 Ø ) The moment of inertia and the weight (mass) are calculated with reference to the largest bore size. Ordering S - H - 44 H - xxxxx Bore size 1 Bore size dditional details, e.g. different shore hardness (p. ), keyway IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 lamping hub for higher torque capacity Simple assembly Vibration damping lectrically isolating info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt

7 Backlash-free Servo-insert oupling S/R F I G (IN N ISO 4) Ø Ø Ø 1 H Ø H Ø H keyway acc. to IN 88-1 optionally Technical series S/R Nominal torque (Nm) TN ( Sh ) oment of inertia of coupling ( - kgm ) J 1) Tightening torque of screws (Nm) Weight per hub (app. kg) m ax. speed (rpm) nmax Standard shore hardness 1, 0,00 1, 0, ,0 0, ,1 0, , 0, 000 0,9 0, , 9 1,8 00 8, 1,4 00 SH (red) imensions (mm) series S/R B Ø 1 H / Ø H F l G (IN N ISO 4) H (clearance diameter) 8 90 only for sizes and min. - max only for sizes and,, 1 4,,, , , , Hub material aluminium alloy steel Bore range 1/ and corresponding transmissible torque values (Nm) of the coupling Ø, Ø,1 4 4 Ø, Ø Ø 0 1 Ø Ø 4 11 Ø Ø Ø Ø Ø Ø 1 1 Ø 4 Ø 4 Ø 4 1 Ø Ø 0 Ø 1) oment of inertia and weight (mass) are calculated with reference to the largest bore size. Hub design: up to size one slit, from size up two slits. Ordering S/R - H - H - xxxxx Bore size 1 imensionally equivalent to competitor s type Bore size dditional details, e.g. different shore hardness (p. ), keyway IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt

8 Backlash-free Servo-insert oupling SS/ Ø Ø 1 H Ø H G (IN N ISO 4) G (IN N ISO 4) Technical series SS/ Nominal torque (Nm) TN ( Sh ) oment of inertia of coupling ( - kgm ) J 1) Tightening torque of screws (Nm) Weight per hub (app. kg) m ax. speed (rpm) nmax Standard shore hardness 1, 0,0 1,8 0, ,0 0, , 0, 0 0 0, 0, ,9 0,9 90,4, 0,4 9,08 0 SH (red) imensions (mm) series SS/ Ø 1 H / Ø H G (IN N ISO 4) min. - max. 0, - 4x - x4 8-4x x x x8 0-4x Hub material aluminium alloy steel Bore range 1/ and corresponding transmissible torque values (Nm) of the coupling Ø Ø Ø Ø Ø Ø 1 Ø Ø Ø Ø Ø Ø Ø Ø Ø Ø Ø 41 Ø Ø 44 Ø Ø 0 Ø, 1, 1, 1, 1, ) oment of inertia and weight (mass) are calculated with reference to the largest bore size. Ordering SS/ - H - 41 H - xxxxx Bore size 1 Bore size dditional details, e.g. different shore hardness (p.) IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 Very high torque transmission Well suited for alternating loads Vibration damping asy to install lectrically isolating 8 info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt

9 Backlash-free Servo-insert oupling SS/-P Ø Ø 1 H j Ø Ø H j G (IN N ISO 4) G (IN N ISO 4) Technical series SS/-P Nominal torque (Nm) TN ( Sh ) oment of inertia of coupling ( - kgm ) J 1) Tightening torque of screws (Nm) Weight per hub (app. kg) m ax. speed (rpm) nmax Standard shore hardness 1, 0,0 1,9 0, ,0 0, 0 0 0,41 8, 0, ,8 8, 0, 00, 1, 100,, 000, 9,09 90 SH (red) imensions (mm) series SS/-P Ø 1 H / Ø H Ø G (IN N ISO 4) Hub material 0, 8, 4x 9, x4 8 1, 4x 90, 8x 1 steel 1 4, 8x 1 9 0, 4x8 0 4, 4x Transmissible torque capacity of the coupling (Nm) Typ Ø 1, Ø Ø 0 Ø 0 Ø Ø Ø4 lamping hub material: alloy steel Push-off threads between the locking screws for size G ynamically balanced to G. specification according to ISO -1. Ordering SS/-P - H - H - xxxxx Bore size 1 Bore size IST. UTORIZO dditional details, e.g. different shore hardness (p. ) X () 1 QRO (4) TY (81) 8 4 xtreme precision High torque transmission Very quiet running condition asy to install Vibration damping info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt 9

10 Backlash-free Safety oupling /S with rollers I1 J G(IN N ISO 4) Ø B1 Ø 1 H Ø H Ø B Ø isengaging travel S I G(IN N ISO 4) keyway acc. to IN 88-1 optionally Technical series /S isengaging torque (Nm) TN version a adjustable TN version b oment of inertia ( - kgm ) J Hub side J lastomer side Weight (appr. kg) m Tightening torque G1 of retaining screws (Nm) G ax. speed (rpm) nmax isengaging travel (mm) S Spider shore hardness - - 0,0 0,00 0, 10 0, ) 0,1 0,0 0, , ) 0, 0,1 1, , ,8 0,, SH (red) ,04 4, ,1, 00 imensions (mm) series /S 1 H min. - max. H min. - max. I 1 I G 1 (IN N ISO 4) G (IN N ISO 4) B 1 B J Hub material elastomer side/hub side ,, I/I , 1 1 I/I , I/I , I/St St/St , St/St 1) To obtain the maximum adjustment range for type b, use spider with Sh. ) al = aluminum alloy, st = steel mechanical or electrical device sensing the position of the steel ring is necessary for torque limiters /S (disengaging travel). In case of overload the drive must be switched off. Ordering /S - H - H - Nm - - b Bore size 1 Bore size isengaging travel = synchronizing engagement resp. = Random engagement IST. UTORIZO djustment range a resp. b X () 1 QRO (4) TY (81) 8 4 For highest dynamic loads, with rollers Torque limiter with integrated shaft coupling djustable torque range ompensation of shaft misalignment You an Rely On Us! info@gerwah.com Phone Fax Grosswallstadt

11 Backlash-free Safety oupling X/S with balls I J G1 (IN N ISO 4) Ø B1 Ø 1 H Ø H Ø B Ø isengaging travel S G (IN N ISO ) keyway acc. to IN 88-1 optionally Technical series X/S isengaging torque (Nm) TN version a adjustable TN version b oment of inertia ( - kgm ) J Hub side J lastomer side Weight (appr. kg) m Tightening torque G1 of retaining screws (Nm) G ax. speed (rpm) nmax isengaging travel (mm) S Spider shore hardness - - 0,0 0,00 0, 10 0, ) 0, 0,0 0, , ) 0,88 0,1 1,1 8, 000 1, , 0, 1, SH (red) ,41 1,04, ,84,1 4,4 00 imensions (mm) series X/S 1 H min. - max. H min. - max. I G 1 (IN N ISO 4) G (IN N ISO 4) B 1 B J Hub material elastomer side, , 4 x4 4 1 I 88, x4 41, I 1-1- x 0 I x I x8 St x8 8 St 1) To obtain the maximum adjustment range for type b, use spider with Sh. ) al = aluminum alloy, st = steel mechanical or electrical device sensing the position of the steel ring is necessary for torque limiters /S (isengaging travel). In case of overload the drive must be switched off. Ordering X/S - H - H - 8 0Nm - - b Bore size 1 Bore size isengaging travel = synchronizing engagement resp. = Random engagement IST. UTORIZO djustment range a resp. b X () 1 QRO (4) TY (81) 8 4 ow cost version, with balls Torque limiter with integrated shaft coupling Simple design ompensation of shaft misalignment info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt 1

12 Backlash-free Servo-insert oupling ssembly Instructions Installation lean and degrease both shaft surface and coupling hub bores. Re-check shaft diameters and coupling bores for proper tolerances. s a standard, the boreholes are equipped with a fitting in accordance with ISO-H. For the shafts, we recommend an transition, e.g. H/g. When selecting other shaft fitting, the fitting should not exceed a maximum of mm. Slide a coupling hub onto each shaft and proceed to torque the screws of one clamp ring or shrink disc after checking axial dimensions. Refer to the technical to assure correct screw tightening torque. Firmly press elastomer spider into one of the two hubs. Because of the interference fit, the force necessary to install the spider may be quite high, therefore a PU tolerant grease such as Vaseline may be applied to ease assembly. The edges of the spider and the jaws of the coupling hubs are both chamfered to ease assembly. Raised contact points visible on the front and back side of the elastomer spider help maintain proper spacing between the two hubs assuring electrical isolation and full angular misalignment capabilities. arefully push the coupling hubs together while maintaining the necessary spacing, tighten the screws of the remaining clamp ring or shrink disc to the recommended torque. The function of the gap is to prevent the coupling hubs from restraining the axial movement of the spider. This ensures optimum life of the coupling and spider. coupling hub While mounting hub spider elastic deformation elastomer spider hub hub hub spider raised contact points Backlash free after final assembly preloaded hub spider hub IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 You an Rely On Us! 1 info@gerwah.com Phone Fax Grosswallstadt

13 Backlash-free Servo-insert oupling ssembly Instructions s of misalignment axial radial angular lignment The picture above shows the () types of misalignment. The mounted coupling needs to be aligned. The more accurate the initial alignment, the better the coupling can absorb additional misalignment during operation, thereby assuring optimum lifetime and quiet running conditions. If all () types of misalignment occur simultaneously, each type must not reach the maximum allowable value. The combined impact of the actual misalignment types, expressed as a percentage of the maximum allowable value, r radial misalignment (%) % w angular misalignment (%) 0% % 0% 0 0 must not exceed 0%. The diagram below shows the combined misalignment. Removal Remove the locking screws, e.g. on the motor. Pull the drive unit, including the jaw coupling apart. Inspect the spider for wear and if necessary, insert a new spider or one with a different shore hardness. fter loosening the keyless clamp ring or shrink disc, the hubs can be removed. Please contact us for detailed installation and removal instructions. ompensation of misalignment xcessive misalignment will cause accelerated wear and premature failure. a axial misalignment (%) isalignments Typ 9 elast. Spider Shorescale isalignment type mm radial r mm axial a 1) +0,4-0, +0, -0, +0,8-0,4 +1,0-0, +1, -0, +1,4-0, +1, -0, +1,8-0, +,0-1,0 +,1-1,0 0,1 0,0 0,04 0,1 0, 0,0 0,04 0, 0, 0,08 0,0 0,1 0,1 0,09 0,0 0,1 0, 0,0 0,04 0, 0, 0,0 0,1 0, 0,08 0, 0,1 0,09 0, 0, 0, 0, 0, 0, scale angular w 1,1 1,1 1,1 1,1 1,1 1) The a values need to be added to the dimension of the coupling selected IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt

14 Backlash-free Servo-insert oupling Technical escription The couplings can be fine tuned to the specific application requirements in terms of torsional stiffness and vibration behavior by selecting from various color coded elastomeric spiders having different grades of shore hardness. Spider olour durometer code (shore hardness) SH blue SH yellow aterial llowable temperature range continuous max. temp. temperature short term polyurethane -0 till + -0 till +1 polyurethane - till till +1 vailable for type - - Typical applications rives in electronic measuring systems; backlash free when pre-compressed entral spindle drives; backlash free when pre-compressed SH red polyurethane - till till +1 - Positioning drives; backlash free when pre-compressed SH -H green hytrel -0 till +1-0 till achine tool spindles, control drives, feed units, planetary gearboxes; SH polyurethane - till +1 - till +1 - } green Heavy loads, torsionally stiff, high ambient temperature, water proof Technical terms for the coupling design Pre-ompression: The curved jaw couplings are designed to have an interference fit between the coupling hubs and elastomer element for true backlash free operation. Therefore, the flexible spider needs to be precompressed for proper seating during the assembly procedure. The amount of pre-compression varies widely depending on the shore harness of the spider, the size of the coupling and the machining tolerances. light force is necessary to pre-compress the torsionally soft spiders while a large force is required to precompress a torsionally stiff spider. TkN Nominal Torque of coupling (Nm): ontinuous torque which can be transmitted throughout the entire speed range, taking into consideration operational factors such as ambient temperature and torsional stiffness. Tkmax aximum Torque of coupling (Nm): Torque to be transmitted 1 x ^ times as a peak load or 0. x ^4 times as an alternating load during the entire life of the coupling taking into consideration factors such as temperature, torsional stiffness and shock loading. Servo insert 9 Shorescale ax. speed (min -1 ) for type /GS S S/R /GS SS/ SS/-P /S X/S , 0, 0,9 0, 1,,0,4 1,8 4, 1, ) ynamic torsional stiffness at 0. x TkN ynamic balancing is required for speeds exceeding V=m/s Torque (Nm) TkN Tkmax 0, 1,0 1, 1,4,4 4,0 4,8, Static torsional stiffness,, 8, 8,, ynamic torsional stiffness xial stiffness (Nm/rad) (Nm/rad) 1) (Nm/mm) IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt

15 hecklist for Your ouplings Inquiry For your convenience just copy, fill out and fax back to us! company street name dpt. Please ask for personalized technical assistance! ZIP/town eail phone fax 1. pplication: How is the coupling supposed to be used? (machine, machine group or system). of connection clamp ring hub shrink disc hub locking assembly hub hub with set screw flange connection outer cone Fanuc spec. customer drawing. imensions ength mm bore size 1 mm keyway yes no iameter mm bore size mm keyway yes no 4. isalignment of shafts axial mm radial mm angular. rive.1 rive output P N = kw. rive speed n = 1/min. Nominal torque of drive t nenn = Nm.4 Peak torque of drive t max = Nm. Shaft diameter drive side = mm driven side = mm. ass moment of inertia.1 drive side J = Nm. driven side J = Nm. Special influences.1 mbient temperature surrounding the coupling? T =. re there any shock loads? light medium heavy. Special materials (e.g. stainless steel).4 Special circumstances 8. Planned quantities production prototype repair yearly quantity 9. Target price /piece Sales Representative IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 info@gerwah.com Phone You an Rely On Us! Fax Grosswallstadt 1

16 og on to for: omplete catalogue info - product drawings alculation software Product and corporate news nd much more You an Rely On Us! 9/01/.0/SB/4c Your GRWH Partner IST. UTORIZO X () 1 QRO (4) TY (81) 8 4 GRWH GmbH Phone (49)00/4-0 Fax (49)00/4- eail info@gerwah.com uetzeltaler Strasse a -8 Grosswallstadt Germany IN N ISO 9001 PTR is a registered trade mark of GRWH GmbH