ROTEX GS Backlash-free jaw couplings

Transcription

1 ROTEX GS Technical description ROTEX GS is a three-part, axial plug-in coupling backlash-free under prestress. It is convincing even with critical applications by its backlash-free power transmission, its stiffness which is each adapted to the application and its optimum damping of vibrations. This principle of installation offers significant assembly possibilities which optimize the assembly times in production. ROTEX GS (straight tooth, backlash-free) The straight spline of the spider mounted under prestress results in a smaller surface pressure and consequently higher stiffness of the coupling system. The flexible teeth compensate for misalignment but are supported radially in the inside diameter by a central web. This avoids too high internal or external deformation by high acceleration or high speeds. This is vital for a smooth operation and long service life of the coupling. The pegs arranged reciprocally on the spider prevent the spider from touching the hub over the entire surface. Observing the distance dimension E ensures the ability of the coupling to compensate for displacements. By observing the gap dimension s the electrical insulation is ensured, as well as a high service life of the coupling. This fact is gaining more and more importance, due to the increasing precision of shaft encoders and the existing demand for electro-magnetic compatibility. Limitation by concave cams in case of too high speeds/centrifugal forces and prestress of elastomer parts s Electric insulation due to gap dimension s s Support to the axis of rotation E Notes zzfeather keyways available from a bore Ø6 zz Finish bore tolerance H7 (except for clamping hubs), from Ø55 G7 with clamping ring hubs zz Finish bore tolerance H6 for ROTEX GS P zzrecommended insertion dimension of shafts into the coupling hubs: l1/l2; for clamping ring hubs l3 zzspider available with bore on request Use in explosive applications ROTEX GS couplings are suitable for power transmission in drives in hazardous areas. The couplings are certified and confirmed according to EC standard 94/9/EC (ATEX 95) as units of category 2G/2D and thus suitable for the use in hazardous areas of zone 1, 2, 21 and 22. Please read through our information included in the respective Type Examination Certificate and the operating and mounting instructions at Selection: In case of use in hazardous areas the clamping ring hubs (clamping hubs without feather keyway only for use in category 3) must be selected such that there is a minimum safety factor of s = 2 between the peak torque (including all operating parameters) and the nominal torque and frictional torque of engagement of the coupling. 118

2 ROTEX GS Spiders The elastic spiders of the GS line are available in five different kinds of Shore hardness, identified by colour, the material being soft to hard. Due to these five spiders with different kinds of Shore hardness it is easily possible to adjust the ROTEX GS with regard to torsional stiffness and the vibration behaviour to the individual conditions of an application. The flexible prestress varies depending on the coupling size, the spiders/material and the production tolerances. Resulting herefrom is the axial plug-in force starting from low as a close sliding fit or with torsionally soft spider, respectively, to heavy with high prestress or torsionally rigid spider (see mounting instruction KTR-N at Along with an increasing hardness of the spider the torques to be transmitted and the stiffness of the spider increase, too. Along with a reduced hardness of the spider the ability of compensating for displacements and damping the spider is increased. Description of spider hardness [Shore] Identification Colour Material Perm. temperature range [ C] Permanent temperature Properties Max. temperature short-term Available for coupling size Typical applications 80 Sh-A-GS Polyurethane - 50 to to size 5 to 24 drives of electric measuring systems 92 Sh-A-GS Polyurethane - 40 to to size 5 to Sh A-GS Polyurethane - 30 to to size 5 to Sh-D-H-GS Hytrel - 50 to to size 7 to Sh-D-GS Polyurethane - 20 to to size 42 to Sh-D-H-GS Hytrel - 50 to to size 24 to Sh-D-GS Polyurethane - 20 to to size 42 to 90 Degree of hardness Increasing hardness drives of electric measuring and control systems main spindle drives positioning drives main spindle drives high load planetary gears / backlash-free gears higher torsion spring stiffness / high ambient temperatures higher load higher torsion spring stiffness very high torsion spring stiffness / high ambient temperature very high load very high torsion spring stiffness very high load Spider material Polyurethane Hytrel Degree of hardness 92 Shore-A 98 Shore-A 64 Shore-D 64 Shore-D Relative Damping ψ [-] 0,80 0,80 0,75 0,60 Resonance factor VR [-] 7,90 7,90 8,50 10,5 COUNTEX RADEX -NC TOOLFLEX ROTEX GS 119

3 ROTEX GS Technical data A Max. speed [rpm] for type Torque [Nm] Static torsion spring stiffness 1) [Nm/rad] Dynamic torsion spring stiffness 1) [Nm/rad] Radial spring stiffness Cr [N/mm] 2.0 / P light 2) 2) DKM 2.5 / TKN TK max 0,2 0,3 1, A 0,3 0,6 3, A 0,5 1,0 5, A 0,9 1,7 8, A 0,7 1,4 8, A 1,2 2,4 14, A 2,0 4,0 22, D 2,4 4,8 34, A 0,7 1,4 8, Each hub 5) 98 A ,0 4,0 23, , D 2,4 4,8 35, A 1,8 3,6 17, A 3,0 6,0 31, A 5,0 10,0 51, D 6,0 12,0 74, A 3,0 6,0 84, A 5,0 10,0 160, A 9,0 18,0 240, D 12,0 24,0 327, A 3,6 7, A ,0 22, , D 14,5 29, A 4,0 8,0 60, A 7,5 15,0 114, A 12,5 25,0 171, D 16,0 32,0 234, A 5,0 10, A ,0 30, , Spider Shore GS Shore range 64 D 19,0 38, A 6,0 12, A 12,0 24, A 21,0 42, D 26,0 52, A A D ) D A A D ) D A A D ) D A A D ) ) D A A D ) ) D A A ) D ) D A D ) ) D A D ) ) D A D ) ) D ,001 0,003 0,01 0,02 0,02 0,09 Weight [kg] Spider 0,2 0,02 0,3 0,03 0,6 0,05 2,4 0,08 3,3 0,09 5,1 0,12 6,7 0,2 10,5 0,3 18,2 0,6 1) Static and dynamic torsion spring stiffness with 0,5 x TKN 2) Higher speeds on request 3) With the use of the 72Sh-D spider we recommend to use hubs made of steel 4) Clamping ring hubs 6.0 made of steel 5) Hubs with an average bore type 1.0 The coupling has to be dimensioned in a way that the permissible coupling load is not exceeded with any operating condition. (see coupling selection on page 18 et seqq.). The torques TKN/TKmax specified refer to the spider. The shaft-hub-connection has to be investigated by the customer. Mass moment of inertia J [kgm2] Each hub 5) Spider 0,2 0,015 0,002 x 10-3 x 10-6 x ,5 0,085 0,01 x 10-3 x 10-6 x ,117 0,01 x 10-3 x 10-6 x ,7 0,48 0,085 x 10-3 x 10-6 x ,3 1,5 0,139 x 10-3 x 10-6 x ,3 1,1 0,155 x 10-3 x 10-6 x ,7 2,8 0,509 x 10-3 x 10-6 x ,3 2,8 0,434 x 10-3 x 10-6 x ,5 1,35 x 10-3 x 10-6 x ,9 6,7 x 10-6 x ,2 14,85 x 10-6 x ,7 39,4 x 10-6 x x 10-6 x x 10-6 x x 10-6 x x 10-6 x x 10-6 x x 10-6 x

4 ROTEX GS Notes for displacements Axial displacement ROTEX GS L Axial displacement Ka Ka Radial displacement ROTEX GS Radial displacement Kr Kr Angular displacement Due to its design the ROTEX GS is able to absorb axial, angular and radial displacement, without causing any wear or premature failure of the coupling. As the spider is only stressed under pressure it is ensured that the coupling will remain backlash-free even after a longer operation period. As an example, axial displacement may be produced by different tolerances of the connecting elements during the assembly or by alteration of the shaft length if fluctuation of temperature occurs. As the shaft bearings usually cannot be axially stressed to a big extent, it is the task of the coupling to compensate for this axial displacement and to keep the reaction forces low. In case of pure angular displacement the imagined bisecting lines of the shafts intersect in the middle of the coupling. Up to a certain permissible extent this displacement can be absorbed by the coupling without any danger of extensive restoring forces. Radial displacement results from parallel displacement of the shafts towards each other, caused by different tolerances at the centerings or by mounting of the power packs on different levels. Due to the kind of displacement the largest restoring forces are produced here, consequently causing the highest stresses for the adjacent components. In case of larger displacements (especially radial displacements) the ROTEX GS DKM double-cardanic design should be applied in order to avoid excessive restoring forces. The above-mentioned permissible displacement figures of the flexible ROTEX GS couplings are standard values, considering the coupling load up to the rated torque TKN of the coupling and with an ambient temperature of + 30 C. The ROTEX GS couplings are in a position to compensate for radial and angular displacements. Careful and accurate alignment of the shafts increases the service life of the coupling. α ROTEX GS Angular displacement Shaft misalignment ROTEX GS type DKM This design reduces the restoring forces arising with radial displacement to a minimum, due to the double-jointed operation, additionally the coupling is able to compensate for higher axial and angular misalignment. α α COUNTEX RADEX -NC TOOLFLEX ROTEX GS 121

5 ROTEX GS Displacements Spider GS Displacements Displacements standard Displacements DKM [mm] axial Ka 1) [mm] radial Kr [degree] angular α [mm] axial Ka 1) [mm] radial Kr [degree] angular α 70 Sh-A 0,14 1,2 0,17 1, Sh-A +0,4 0,12 1,1 +0,4 0,15 1,1 92 Sh-A -0,2 0,06 1,0-0,4 0,14 1,0 98 Sh-A 0,04 0,9 0,13 0,9 80 Sh-A 0,15 1,1 0,23 1, Sh-A +0,6 0,10 1,0 +0,6 0,21 1,0 98 Sh-A -0,3 0,06 0,9-0,6 0,19 0,9 64 Sh-D 0,04 0,8 0,17 0,8 80 Sh-A 0,15 1, Sh-A ±1 0,08 0,9 64 Sh-D 0,06 0,8 80 Sh-A 0,19 1,1 0,29 1, Sh-A +0,8 0,13 1,0 +0,8 0,26 1,0 98 Sh-A -0,4 0,08 0,9-0,8 0,24 0,9 64 Sh-D 0,05 0,8 0,21 0,8 80 Sh-A 0,20 1,1 0,35 1, Sh-A +0,9 0,14 1,0 +0,9 0,32 1,0 98 Sh-A -0,4 0,08 0,9-0,9 0,29 0,9 64 Sh-D 0,05 0,8 0,25 0,8 80 Sh-A 0,20 1, Sh-A ±1 0,08 0,9 64 Sh-D 0,05 0,8 80 Sh-A 0,21 1,1 0,40 1, Sh-A +1,0 0,15 1,0 +1,0 0,37 1,0 98 Sh-A -0,5 0,09 0,9-1,0 0,33 0,9 64 Sh-D 0,06 0,8 0,29 0,8 80 Sh-A 0,21 1, Sh-A ±1 0,10 0,9 64 Sh-D 0,08 0,8 80 Sh-A 0,15 1,1 0,49 1, Sh-A +1,2 0,10 1,0 +1,2 0,45 1,0 98 Sh-A -0,5 0,06 0,9-1,0 0,41 0,9 64 Sh-D 0,04 0,8 0,36 0,8 92 Sh-A 0,14 1,0 0,59 1,0 98 Sh-A +1,4 0,10 0,9 +1,4 0,53 0,9 64 Sh-D -0,5 0,07 0,8-1,0 0,47 0,8 72 Sh-D 0,04 0,7 0,42 0,7 92 Sh-A 0,15 1,0 0,66 1,0 98 Sh-A +1,5 0,11 0,9 +1,5 0,60 0,9 64 Sh-D -0,7 0,08 0,8-1,4 0,53 0,8 72 Sh-D 0,05 0,7 0,46 0,7 92 Sh-A 0,17 1,0 0,77 1,0 98 Sh-A +1,8 0,12 0,9 +1,8 0,69 0,9 64 Sh-D -0,7 0,09 0,8-1,4 0,61 0,8 72 Sh-D 0,06 0,7 0,54 0,7 92 Sh-A 0,19 1,0 0,84 1,0 98 Sh-A +2,0 0,14 0,9 +2,0 0,75 0,9 64 Sh-D -1,0 0,10 0,8-2,0 0,67 0,8 72 Sh-D 0,07 0,7 0,59 0,7 92 Sh-A 0,23 1,0 0,91 1,0 98 Sh-A +2,1 0,16 0,9 +2,1 0,82 0,9 64 Sh-D -1,0 0,11 0,8-2,0 0,73 0,8 72 Sh-D 0,08 0,7 0,64 0,7 92 Sh-A 0,24 1,0 1,01 1,0 98 Sh-A +2,2 0,17 0,9 +2,2 0,91 0,9 64 Sh-D -1,0 0,12 0,8-2,0 0,81 0,8 72 Sh-D 0,09 0,7 0,71 0,7 98 Sh-A 0,18 0,9 +2,6 64 Sh-D 0,13 0,8-1,0 72 Sh-D 0,10 0,7 98 Sh-A 0,21 0,9 +3,0 64 Sh-D 0,15 0,8-1,5 72 Sh-D 0,11 0,7 98 Sh-A 0,23 0,9 +3,4 64 Sh-D 0,17 0,8-1,5 72 Sh-D 0,13 0,7 1) The Ka figures mentioned above have to be added to the length of the respective coupling type. 122

6 ROTEX GS Displacements of intermediate shaft coupling Displacements of intermediate shaft coupling ROTEX GS size with 98 Sh-A-GS Axial Ka [mm] Radial Kr 1) [mm] Angular α [degree] 14 +1,0-1,0 15 0, ,2-1,0 +1,4-1,0 +1,5-1,4 +1,8-1,4 +2,0-2,0 +2,1-2,0 +2,2-2,0 +2,6-2,0 1) Radial displacements based on a coupling length LZR = 1000 mm Calculation of overall torsion spring stiffness: Cges. = Operating speed [min -1 ] C1 + L pipe C2 with Lpipe = LZR - 2 L 1000 [m] C1 = torsion spring stiffness for spider see page 120 C2 = from table on page [Nm/rad] 14 0,9 14 0,9 14 0,9 14 0,9 14 0,9 13 0,9 13 0,9 13 0,9 Chart of critical bending speeds for type ZR3 ROTEX GS 19 ROTEX GS 24 ROTEX GS 28 ROTEX GS 38 ROTEX GS 42 ROTEX GS 48 [degree] Axial displacement Radial displacement Kr = (LZR - 2 l1 - E) tan α Angular displacement Example: ROTEX GS 19 Operating speed: 1500 min -1 Max. permissible shaft distance dimension:: 1700 mm Operating speed = nkrit/1,4 COUNTEX RADEX -NC TOOLFLEX ROTEX GS Shaft distance dimension LR [mm] 123

7 ROTEX GS Hub types Due to the numerous applications of ROTEX GS for many different mounting situations, this coupling system is available with various hub types. The different hub types can be combined optionally within one size. Type 1.0 with feather keyway and setscrew Positive locking power transmission, permissible torque depending on the permissible surface pressure. Not suitable for backlash-free power transmission with heavily reversing operation. Type 1.1 without keyway, with setscrew Non-positive torque transmission, suitable for backlash-free transmission of very small torques. (For ATEX category 3 only) Type 2.0 clamping hub, single slotted, without feather keyway Frictionally engaged, backlash-free shaft-hub-connection-. Transmittable torques depending on bore diameter Type 2.0 up to size 14 as standard. (For ATEX category 3 only) Type 2.1 clamping hub, single slotted, with feather keyway Positive locking power transmission with additional frictionally engaged condition. The frictionally engaged condition prevents or reduces reverse backlash, respectively. Surface pressure of the keyway connection is reduced. Type 2.1 up to size 14 as standard. Type 2.5 Clamping hub double slot, without feather keyway Frictionally engaged, backlash-free shaft-hub-connection-. Transmittable torques depending on bore diameter Type 2.5 from size 19 as standard. (For ATEX category 3 only) Type 2.6 Clamping hub double slot, with feather keyway Positive locking power transmission with additional frictionally engaged condition. The frictionally engaged condition prevents or reduces reverse backlash, respectively. Surface pressure of the keyway connection is reduced. Type 2.5 from size 19 as standard. Type 2.8 short clamping hub C with axial slots without feather keyway Frictionally engaged, backlash-free shaft-hub-connection, good properties of concentric running. Transmittable torques depending on bore diameter Type 2.8 from size 24 as standard type 2.8 single slotted (for ATEX cat. 3 only) Type 2.9 short clamping hub C with axial slots with feather keyway Positive locking power transmission with additional frictionally engaged condition. Surface pressure of the keyway connection is reduced. Type 2.9 from size 24 as standard, size 7-19 type. 2.9 single slotted. Type 6.0 Clamping ring hub Type 6.0 P Precision clamping ring hub Integrated frictionally engaged shaft-hub-connection for the transmission of higher torques. Screwing on elastomer side. For details about torque and dimensions see page 156/157. Suitable for high speeds. Operating principle equal to type 6.0, but highly accurate machining with slight modifications of design, see page 132. Type Design 7.5 clamping hub type DH without feather keyway for double-cardanic connections Frictionally engaged, backlash-free shaft-hub-connection for radial assembly of coupling. Transmittable torques depending on bore diameter For torques see page 140. Type 7.6 clamping hub type DH with feather keyway for double-cardanic connections Positive shaft-hub connection with additional frictional engagement for the radial assembly of the coupling. The frictional engagement avoids or reduces the reverse backlash. Surface pressure of the keyway connection is reduced. Type 7.8 clamping hub type H without feather keyway, single-cardanic connection Type 7.9 clamping hub type H with feather keyway for singe-cardanic connection Type 4.2 with CLAMPEX KTR 250 Frictionally engaged shaft-hub-connection to transmit high torques with clamping screws externally Type 9.0 expansion hub Frictionally engaged connection for hollow shaft. Transmittable torques depend on the bore diameter and the hollow shaft. Special designs on request of customers Type 6.5 Clamping ring hub Design equal to 6.0, but clamping screws on the outside. As an example for radial disassembly of intermediate pipe (special design). 124

8 ROTEX GS Stock programme Hub type Un-/pilot bored 7 Finish bore [mm] according to ISO fit H7 / feather keyway with thread according to DIN 6885 sheet 1 - JS9 Ø2 Ø3 Ø4 Ø5 Ø Ø 6,35 Ø7 Ø8 Ø9 Ø9,5 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø light 6.0 P light 6.0 steel 6.0 P P light 6.0 steel 6.0 P P light 6.0 steel 6.0 P light 6.0 steel 6.0 P Taper bores for Fanuc motors: GS 19 1:10 Ø 11 GS 24 1:10 Ø 16 Finish bores [mm] Hub type Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 Ø light 6.0 steel light 6.0 steel steel steel steel steel Bores on request COUNTEX RADEX -NC TOOLFLEX ROTEX GS = Pilot bored clamping hubs = Standard bore from stock Unbored hubs up to size 65 available from stock. Other dimensions on request 125

9 ROTEX GS Standard types For legend of pictogram please refer to flapper on the cover 90 ROTEX GS 5-38 ROTEX GS Hub types: Type 1.0 Type 1.1 Type 1.2 with keyway and set screw without keyway and with set screw without keyway and without set screw Spider torque TKN [Nm] for 98Sh-A 1) ROTEX GS standard types For size 5 to 38 hub material aluminium/for size 42 to 90 hub material steel Maximum finish bore Ød for hub type Dimensions [mm] Setscrew DIN EN ISO 4029 hub type 1.0/ D DH dh L l1;l2 M;N E b s a G t TA 5 0, ,5 4,0 M2 2,5 0,2 7 2, ,0 6,0 M3 3,5 0,3 9 5, , ,0 1,5 M4 5,0 1,5 12 9, , ,0 3,5 M4 5,0 1, , , ,5 2,0 M4 5,0 1, ,0 3,0 M5 10 2, ,0 3,0 M5 10 2, ,5 4,0 M ,0 4,0 M ,0 4,0 M ,5 4,0 M ,0 4,5 M ,5 4,5 M ,0 5,0 M ,5 6,5 M ) Other spiders/selection see page 142/ Ordering example: ROTEX GS Sh-A-GS d Ø Ø 20 Coupling size Spider hardness Optional: Bore in spider Hub type Finish bore Hub type Finish bore

10 Hub types: Type 2.0 Type 2.1 size 5 to 14 Type 2.0: Single slotted clamping hub without feather keyway (only for ATEX cat. 3), torque depending on bore Ø. Type 2.1: single slotted clamping hub with feather keyway Spider torque TKN [Nm] for 98Sh-A 1) ROTEX GS standard types For size 5 to 38 hub material aluminium/for size 42 to 90 hub material steel Maximum finish bore Ød for hub type Dimensions [mm] Clamping screw DIN EN ISO 4762 (ROTEX 5 DIN 84) hub type 2.0/2.1/2.5/ D DH dh L l1;l2 M;N E b s a M1 t1 e DK TA[Nm] 5 0, ,5 4,0 M1,2 2,5 3,5 11,4 2) 7 2, ,0 6,0 M2 3,5 5,0 16,5 0,37 9 5, , ,0 1,5 M2,5 5,0 7,5 23,4 0, , , ,0 3,5 M3 5,0 9,0 27,5 1, , , ,5 2,0 M3 5,0 11,5 32,2 1, ,0 3,0 M6 11,0 14, , ,0 3,0 M6 10,5 20,0 57,5 10, ,5 4,0 M8 11,5 25, ,0 4,0 M8 15,5 30,0 83, ,0 4,0 M ,0 93, ,5 4,0 M , ) ,0 4,5 M ,5 119, ) ,5 4,5 M , ,0 5,0 M ,0 147, ,5 6,5 M , ) Other spiders/selection see page 18 et seqq. 2) No TA defined (slotted screw) 3) From Ø60 keyway opposite to the clamping screw 4) Clamping hub single slotted with 2-off clamping screws M4 and dimension e=15 Review of shaft-hub-connection: Friction torques for hub type 2.0 Ø2 Ø3 Ø4 Ø5 Ø6 Ø7 Ø8 Ø9 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 7 0,8 0,9 0,95 1,0 1,1 9 2,1 2,2 2,3 2,4 2,5 2,6 2,7 2,8 12 3,6 3,8 4,0 4,1 4,3 4,5 4,7 4,8 5,0 14 4,7 4,8 5,0 5,1 5,3 5,5 5,6 5,8 6,1 6,3 6,5 Review of shaft-hub-connection: Friction torques for hub type 2.5 Ø8 Ø10 Ø11 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 Ø75 Ø80 Ø ) 32 4) Type 2.5 Type from size 19 Type 2.5: double slotted clamping hub without feather keyway (only for ATEX cat. 3), torque depending on bore Ø. Type 2.6: double slotted clamping hub with feather keyway COUNTEX RADEX -NC TOOLFLEX ROTEX GS 127

11 ROTEX GS Compact Compact design For legend of pictogram please refer to flapper on the cover 90 ROTEX GS Compact Spider torque TKN [Nm] 1) Dimensions [mm] 80Sh-A 92Sh-A 98Sh-A 64Sh-D maximum d DH DK L l1, l2 E b s dh t e M TA [Nm] Single slotted hub design 2.8/ ,7 1,2 2,0 2, , ,5 5 M2 0,37 8 0,5 2, , ,5 6,2 4 5,5 M2 0,52 9 1,8 3,0 5, , ,5 6,7 M2,5 0, ,0 5,0 9, , ,5 8,3 M3 1, , ,5 12, , M3 1,9 14 4,0 7,5 12, ) 30 30,5 32 9, ,5 4,5 9,6 M4 2,9 16 5, , ,3 11,4 9, ,3 10,5 M4 4,1 19 6,0 12,0 21,0 26,0 24 2) 40 45, ,0 M6 10 Axially slotted hub design 2.8/ , ,0 M , , ,8 M , ,5 M10 49 Review of shaft-hub-connection: Friction torques for hub type 2.8 Ø3 Ø4 Ø5 Ø6 Ø7 Ø8 Ø9 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 7 0,8 0,9 1,0 1,0 1,1 8 0,65 0,85 1,1 1,3 1,5 1,7 9 1,9 2,0 2,1 2,2 2,3 2,4 12 3,4 3,6 3,7 3,9 4,1 4,2 4,4 4,6 4,7 13 2,2 2,75 3,3 3,8 4,4 4,9 5,5 6 6,6 Single slotted hub design ,1 7,4 7,7 8,0 8,2 8,5 8,8 9,1 5,8 2) 5,9 2) 6,1 2) 16 4,8 5,8 6,4 7,7 8,7 9,6 11,6 11,5 13,5 14,5 15, ,3 25,0 25,7 26,3 27,0 28,4 29,0 29,7 31,1 31,7 32,4 25,0 2) Axially slotted hub design ) Other spiders/selection see page 18 et seqq. 2) 14 with screw M3 and dimension e=10.4, size 19 with screw M5 and dimension e= = Without feather keyway 2.9 = With feather keyway 128 Ordering example: ROTEX GS 38 Compact 98 Sh-A-GS d Ø Ø45 Coupling size Type Spider hardness Optional Bore in spider Hub type Finish bore Hub type Finish bore

12 ROTEX GS 8, 13, 16 Compact Single slotted type 2.8 ROTEX GS 7, 9, 12, 14, 19 Compact Single slotted type 2.8 ROTEX GS Compact Axially slotted type 2.8 Hub types Type 2.8 Type 2.9 COUNTEX RADEX -NC TOOLFLEX ROTEX GS Short clamping hub C with axial slots without feather keyway Type 2.8 from size 24 standard, size 7-19 type 2.8 single slotted Short clamping hub C with axial slots with feather keyway Type 2.9 from size 24 standard, size 7-19 type 2.9 single slotted 129

13 ROTEX GS Clamping ring hubs light Integrated clamping system made of aluminium For legend of pictogram please refer to flapper on the cover 90 Tack thread M1 between clamping screws Spider torque TKN [Nm] 1) ROTEX GS clamping ring hubs light Dimensions [mm] 92 Sh-A 98Sh-A 64 Sh-D maxi.d DH 2) dh L l1; l2 l3 E b s a M Clamping screws DIN EN ISO 4762 Number z TA[Nm] M1 Weight per hub with max. bore [kg] Mass moment of inertia per hub with max. bore [kg m 2 ] 14 7,5 12,5 16, , ,5 13, ,5 2,0 M3 4 1,34 M3 0,032 0,04 x ,0 3,0 M4 6 3 M4 0,077 0,19 x ,0 3,0 M5 4 6 M5 0,162 0,78 x ,5 4,0 M5 8 6 M5 0,240 1,70 x ,0 4,0 M M6 0,490 5,17 x ,0 4,0 M M8 0,772 11,17 x ,5 4,0 M M10 1,066 18,81 x ) Other spiders/selection see page 18 et seqq. 2) ØDH + 2 mm with high speeds for expansion of spider Review of shaft-hub-connection: Friction torques for hub type 6.0 light Ø6 Ø10 Ø11 Ø14 Ø15 Ø16 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55* H7/k6 6, H7/h6 4, H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h * From Ø55 tolerance G7/m6 With bigger clearance the torque is reduced. As shaft material steel or nodular iron with a yield point of approx. 250 N/mm2 or more can be used. For the stiffness calculation of the shaft/hollow shaft see KTR standard at our homepage Ordering example: ROTEX GS Sh-A-GS d light Ø light Ø 20 Coupling size Spider hardness Optional: Bore in spider Hub type Finish bore Hub type Finish bore

14 ROTEX GS Clamping ring hubs made of steel Integrated clamping system made of steel For legend of pictogram please refer to flapper on the cover Tack thread M1 between clamping screws ROTEX GS clamping ring hubs made of steel Clamping screws Spider torque TKN [Nm] 1) Dimensions [mm] Weight per Mass moment DIN EN ISO 4762 hub with max. per hub with max. Number z 98 Sh-A 64 Sh-D 72 Sh-D maxi.d DH 2) dh L l1; l2 l3 E b s a M TA[Nm] bore [kg] bore [kg m 2 ] M ,0 3,0 M4 6 4,1 M4 0,179 0,44 x ,0 3,0 M5 4 8,5 M5 0,399 1,91 x ,5 4,0 M5 8 8,5 M5 0,592 4,18 x ,0 4,0 M M6 1,225 12,9 x ,0 4,0 M M8 2,30 31,7 x ,5 4,0 M M10 3,08 52,0 x ,0 4,5 M M10 4,67 103,0 x ,5 4,5 M M12 6,70 191,0 x ,0 5,0 M M12 9,90 396,8 x ,5 6,5 M M16 17, x ) Other spiders/selection see page 18 et seqq. 2) ØDH + 2 mm with high speeds for expansion of spider Review of shaft-hub-connection: Friction torques for hub type 6.0 steel Ø10 Ø11 Ø14 Ø15 Ø16 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55* Ø60* Ø65* Ø70* Ø80* Ø90* Ø95* Ø100* Ø105* 19 H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h H7/k H7/h * From Ø55 tolerance G7/m6 With bigger clearance the torque is reduced. For the stiffness calculation of the shaft/hollow shaft see KTR standard at our homepage at ROTEX GS Sh-A-GS d steel Ø steel Ø20 Ordering example: Optional: Bore Coupling size Spider hardness Hub type Finish bore Hub type Finish bore in spider 90 COUNTEX RADEX -NC TOOLFLEX ROTEX GS 131

15 ROTEX GS P Highly accurate type P according to DIN For legend of pictogram please refer to flapper on the cover 90 Spider torque TKN [Nm] 1) ROTEX GS type P material of hub/clamping ring steel Dimensions [mm] Tightening torque of clamping screws TA [Nm] Weight per hub with bore Ød standard [kg] Mass moment of inertia with bore Ø d standard [kgm2] 98 Sh-A 64 Sh-D maximum d DH 2) dh L l1;l2 l E b s a d3 14 P 12, , ,5 15, ,5 2 1,89 0,08 0,011 x P ,05 0,19 0,046 x P ,5 0,44 0,201 x P ,5 4 8,5 0,64 0,438 x P ,32 1,325 x P ,5 35 2,23 3,003 x P ,5 4 20,5 69 3,09 5,043 x P ,5 22,5 69 4,74 10,02 x P ,5 4, ,70 191,0 x P ,0 5, ,90 396,8 x P ,5 6, , x ) Other spiders/selection see page 18 et seqq. 2) Ø DH + 2 mm with high speeds for expansion of spider For the stiffness calculation of the shaft/hollow shaft see KTR standard on our homepage Review of shaft-hub-connection: Friction torques for hub type 6.0P steel Ø10 Ø11 Ø14 Ø15 Ø16 Ø19 Ø20 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55* Ø60* Ø65* Ø70* Ø80* Ø90* Ø95* Ø100* Ø105* 14 H6/k H6/k H6/k H6/k H6/k H6/k H6/k H6/k H6/k H6/k H6/k *From Ø55 G6/m6. With bigger clearance the torque is reduced. For the stiffness calculation of the shaft/hollow shaft see KTR standard at our homepage at Selection for stub spindles according to DIN Dimensions to DIN ROTEX Spindle drive GS P Transmittable Weight per hub Mass moment of size Standard spindle shaft diameter d d1 d2 d3 DH l1; l2 L E torque TR with Ød with bore Ød inertia with bore Ø [Nm] 3) standard [kg] 3) d standard [kgm 2 ] 3) 25 x P , , ,08 0,011 x k x P ,5 37, ,16 0,037 x g x P , ,19 0,046 x x P , ,331 0,136 x x P , ,44 0,201 x x P , ,64 0,438 x x P , ,32 1,325 x ) Standard spindle shaft diameters Ordering example: ROTEX GS 24 P 98 Sh-A-GS Ø Ø25 Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore 132

16 Components Tack thread M1 between clamping screws ROTEX GS type P with central coolant supply for stub spindles and multiple spindle heads Tool side Spindle bearing Driving side (gearbox or motor) COUNTEX RADEX -NC TOOLFLEX ROTEX GS 133

17 ROTEX GS expansion hubs Clamping system for hollow shaft connection For legend of pictogram please refer to flapper on the cover 90 ROTEX GS expansion hub Material of expansion hub aluminium/material of clamp pin stainless steel Spider torque TKN [Nm] 2) Dimensions [mm] 80 Sh-A 92 Sh-A 98 Sh-A 64 Sh-D 72 Sh-D D1 3) D2 DH l1 3) l4 3) l5 3) l6 E b s 9 1,8 3,0 5,0 6, ,0 12 3,0 5,0 9,0 12, , ,0 14 4,0 7,5 12,5 16, ,5 12, ,5 19 6,0 12,0 21,0 26, , , ,5 1) Expansion hub can be combined with other hub designs as a counter side, too. l2 depending on hub design. Other hub types see page 124 2) For selection see page 18 et seqq. 3) The dimensions D1; l1, l4 and l5 are examples. Other dimensions on customers' request. Review of shaft-hub-connection: Friction torques for hub type 9.0* D1 D2 l1 l4 3 l5 Friction torque [Nm] , ,5 7, ,5 12,5 3 7, , * The transmittable torques of the clamping connection consider the dimensions D1, D2, l4 and l5 as specified with steel being the material of the hollow shaft. 134 Ordering example: ROTEX GS Sh-A-GS d Ø Ø 20 Coupling size Spider hardness Optional: Bore in spider Hub type D1 Hub type Finish bore

18 ROTEX GS expansion hub type 9.0 with clamping hub 1) ROTEX GS expansion hub for axis of belt Special types for hollow shaft connections Shaft extension ROTEX GS hub with CLAMPEX KTR 150 COUNTEX RADEX -NC TOOLFLEX ROTEX GS 135

19 ROTEX GS A-H Drop-out center design coupling For legend of pictogram please refer to flapper on the cover 90 Max. finish bore Ød [mm] ROTEX GS Type A-H hub material aluminium Dimensions [mm] Cyl. screws DIN EN ISO 4762 L l1; l2 E b s DH DK x1/x2 E1 Mxl TA [Nm] , ,5 31 M6x , ,5 22,0 34 M6x , ,0 40 M8x , ,5 33,0 48 M8x , , M10x Spider Max. Shore range Shore-GS 1) 80 A speed [rpm] Torque [Nm] Technical data Static torsion spring stiffness 2) [Nm/rad] TKN TKmax 6,0 12, A 12,0 24, A 21,0 42, D 26,0 52, A Mass moment of inertia J of each Weight per hub with max. bore [kg] hub with max. bore diameter [kgm2] 77 x ,6 x A x ,3 x D A A x x D A A x x D A A x x D ) Other spiders/selection see page 18 et seqq. 2) Static torsion spring stiffness with 0.5 x TKN To make sure that the coupling can be assembled/disassembled radially, please observe the insertion dimension x1/x2 of the shafts. Review of shaft-hub-connection: Friction torques for hub type 7.8 Ø8 Ø10 Ø11 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø46 Ø48 Ø Ordering example: ROTEX GS 38 A-H 98 Sh-A-GS 7.8 Ø Ø 30 Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore 136

20 Type A-H Please note: The feather keys are offset to each other by approx. 5! Hub material: Al-H Hub types Type 7.8 Type 7.9 COUNTEX RADEX -NC TOOLFLEX ROTEX GS Clamping hub type H without feather keyway for singlecardanic connection Clamping hub type H with feather keyway for singe-cardanic connection 137

21 ROTEX GS DKM Double-cardanic jaw coupling For legend of pictogram please refer to flapper on the cover 90 Spider torque TKN [Nm] 1) ROTEX GS DKM Spacer material aluminium/hub material depends on hub design Dimensions [mm] 98 Sh-A 64 Sh-D max. d 2) D DH dh dh1 l1; l2 M; N l11 l12 LDKM E b s a 5 0, ,5 4,0 7 2,0 2, ,0 6,0 9 5,0 6, , ,0 1,5 12 9,0 12, , ,0 3, ,5 16, , ,5 2, ,0 26, , ,0 3, , ,0 3, , ,5 4, , ,0 4, ,0 4, ,5 4, ,0 4,5 1) Other spiders/selection see page 18 et seqq. 2) Depending on hub type. Hub types can be freely selected, for summary see page Ordering example: ROTEX GS 24 DKM 98 Sh-A-GS d Ø Ø25 Coupling size Type Spider hardness Optional: Bore in spider Hub type Finish bore Hub type Finish bore

22 Other types: ROTEX GS - CF - DKM ROTEX GS DKM with clamping hubs DH type 7.5/7.6 COUNTEX RADEX -NC TOOLFLEX ROTEX GS 139

23 ROTEX GS ZR3 Backlash-free intermediate shaft couplings Intermediate shaft coupling with aluminium pipe bonded For legend of pictogram please refer to flapper on the cover 90 Minimum and maximum finish bore ROTEX GS type ZR3 hub material aluminium/intermediate pipe material aluminium Dimensions [mm] General Cyl. screw DIN EN ISO 4762 LR LZR =LR+2 l3 dmin. dmax. DH l1 L l3 E min. max. min. max. dr DK t1 e 8.8 TA [Nm] ,5 36,0 14, ,5 7,5 11,5 M3 1, ,0 17, ,0 14,5 M ,0 22, ,5 10,5 20 M ,0 25, ,5 25 M ,5 33, ,5 15,5 30 M ,0 36, ,5 18,0 32 M ,0 39, ,5 36 M12 86 Spider torque TKN [Nm] 1) Technical data of type ZR3 Moment of inertia [10-3 kgm 2 ] Stat. torsion spring stiffness [Nm2/rad] 98 Sh-A 64 Sh-D Hub 2) ZR hub Pipe/meter ZW C2 3) 14 12,5 16,0 0, , , ,0 26,0 0, , , , ,0 75,0 0, , , , , , , , , ,2572 2, , , ,5523 4, , , ,1834 9, ,2 1) Other spiders/selection see page 18 et seqq. 2) With dmax. 3) Torsion spring stiffness with a length of 1 m of intermediate pipe with LRohr = LZR - 2 L For enquiries and orders please specify the shaft distance dimension LR along with the maximum speed to review the critical bending speed. The intermediate pipe could be combined with other hub designs, but in that case it can no longer be radially disassembled. Please mention the shaft distance dimension required in your order. With vertical application a support washer has to be used (please mention in your order). Insertion dimension of shaft l3, to make sure that the coupling can be assembled/disassembled radially. Review of shaft-hub-connection: Friction torques for hub type 7.5 Ø5 Ø6 Ø8 Ø10 Ø11 Ø14 Ø15 Ø16 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø46 Ø48 Ø50 Ø ,6 3,1 4,2 5,2 5,7 7,3 7,8 8, Ordering example: ROTEX GS 24 ZR mm 98 Sh A-GS Ø Ø24 Shaft distance Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore dimension (LR)

24 Hub types Type 7.5 Type 7.6 Clamping hub type DH without feather keyway for doublecardanic connections Shaft distance dimension Clamping hub type DH with feather keyway for doublecardanic connections COUNTEX RADEX -NC TOOLFLEX ROTEX GS 141

25 ROTEX GS ZR1 und ZR2 Backlash-free intermediate shaft couplings Intermediate shaft couplings with steel pipe/steel shaft For legend of pictogram please refer to flapper on the cover 90 Spider torque TKN [Nm] 1) Spider torque TKN [Nm] 1) Maximum finish bore Maximum finish bore ROTEX GS Type ZR1 ROTEX GS Type ZR2 Dimensions [mm] Dimensions [mm] 98 Sh-A 64 Sh-D d 2) DH l1; l2 L E b s B LR1 98 Sh-A 64 Sh-D d 2) DH l1; l2 l3 L E b s B LR2 Minimum dimension for LR2 Minimum dimension for LR1 Precision tube [mm] [Nm 2 /rad] Clamping set size KTR 250 Clamping screws DIN EN ISO LZR2 dr C2 4) dxd Mxl 14 ZR2 12,5 16, ,5 11,5 109 LR x2,0 68,36 10x16 M4x10 5,2 19 ZR2 21,0 26, ,0 14,0 120 LR x2, x18 M4x10 5,2 24 ZR ,0 16,0 156 LR x3,0 954,9 20x28 M6x18 17,0 28 ZR ,5 17,5 177 LR x2, x34 M6x18 17,0 38 ZR ,0 21,0 192 LR x3, x43 M6x18 17,0 42 ZR ,0 23,0 214 LR x4, x53 M6x18 17,0 48 ZR ,5 24,5 261 LR x4, x59 M8x22 41,0 55 ZR ,0 26,0 288 LR x4, x71 M8x22 41,0 65 ZR ,5 30,5 387 LR x4, x77 M8x22 41,0 1) Other spiders/selection see page 18 et seqq. 2) Depending on hub type. Hub types can be freely selected, for summary see page 124 3) Has to be remachined, if necessary 4) Torsion spring stiffness with a length of 1 m of intermediate pipe For inquiries and orders please specify the shaft distance dimension LR1/LR2 along with the maximum speed to review the critical bending speed. With vertical application a support washer has to be used (please mention in your order). LZR1 dr 3) Mxl Cyl. screw DIN EN ISO Tightening torque TA [Nm] 14 ZR1 12,5 16, ,5 11,5 71 LR x2,5 M3x12 1,34 6,1 19 ZR1 21,0 26, ,0 14,0 110 LR x3,0 M6x16 10, ZR ,0 16,0 128 LR x2,5 M6x20 10, ZR ,5 17,5 145 LR x4,0 M8x ZR ,0 21,0 180 LR x4,0 M8x Pease mention with inquiries and orders Pease mention with inquiries and orders Friction torque TR [Nm] Tightening torque TA [Nm] 142 Ordering example: ROTEX GS 24 ZR mm 98 Sh-A-GS Ø Ø24 Shaft distance Coupling size Type Spider hardness Hub type Finish bore Hub type Finish bore dimension (LR)

26 Type ZR1 Double- and single-cardanic types Type ZR2 COUNTEX RADEX -NC TOOLFLEX ROTEX GS 143