® TRASCO ES JAW COUPLINGS 07 20 ZERO BACKLASH
an excellence in engineering www.jbj.co.uk/couplings.html ® patented Elika profile is everything 01737 767493 info@jbj.co.uk www.jbj.co.uk - registered in England No: 1185469 - jbj Techniques Limited is ISO certificated, committed to international coordination & unification of industrial standards. A range of products ATEX certificated to directive 94/9/E requirements You Tube
Contents Page TRASCO® ES Zero backlash jaw couplings introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2 Technicalcharacteristics......................................................................... 3 Installation & maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SelectioninAccordancewithDIN740.2............................................................. 5 Example of selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Modeltypes................................................................................... 7 Standard type coupling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 “MC” type with clamp hubs - compact type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 “M” type with clamp hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 11 “2M” type with clamp hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 “A” type - shrink disc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 “AP” type shrink disc type according to DIN 69002 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 GESS double cardanic type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 “GES LR1” type with intermediate shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 “GES LR3” type with intermediate shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Technical data for intermediate shaft couplings (GES LR1 - GES LR3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 #DriveLineHarmony............................................................................ 20 ® TRASCO ES Zero Backlash Jaw Couplings I www.jbj.co.uk/couplings.html #DriveLineHarmony The details contained within this catalogue are reproduced in accordance with the latest information at publication of this catalogue. Errors & Omissions Excepted Last update: 01/07/2020
Introduction ® TRASCO ES Zero Backlash Jaw Couplings ® TRASCO ES is the zero backlash coupling designed to compensate for misalignment and vibration dampening for indexing applications. The compact ® design of TRASCO ES makes it the right choice for all precise motion applications. Description® The TRASCO ES consists of two hubs, which are either made of high-strength aluminum (up to the 38/45 size) or steel (from size 42) that are connected with ® an elastic element. The precise dimensional characteristics of TRASCO ES are obtained through our accurate machining process. The special compound polyurethane elastic element, developed through extensive research and laboratory testing, is made through a press-forming process which guarantees high dimensional accuracy. The element is available in 4 different hardnesses: 80 Sh. A (blue), 92 Sh. A (yellow), 98 Sh. A (red), 64 Sh. D (green). Coupling performance depends on the type of element selected Other hardness values for coupling elements are available upon request to meet special (see “Technical characteristics, page 3”). operating conditions, such as high temperatures and/or high torques, and for providing a high degree of vibration damping capability. Please contact jbj Techniques Limited technical office, telephone +44 (0)1737 767493 or email: info@jbj.co.uk for help in selecting the appropriate element hardness. Spider Elements The gear ring is made of a particular polyurethane resin which shows great advantages in comparison to the standard polyurethanes available on the market. The urethane compound of these coupling elements offers resistance to aging, hydrolysis, fatigue, and abrasion making it suitable for even the most demanding applications in high humidity conditions. It is self-dampening and shows a great resistance to the main chemical agents, acids, oils, and ozone. Special types of gear rings are available in order to provide the right solution for each specific application covering a large range of temperatures and resisting specific chemical agents. Hub Spider 1 www.jbj.co.uk/couplings.html #DriveLineHarmony
Introduction ® TRASCO ES Zero Backlash Jaw Couplings Operation When the coupling element is installed in its special seats between the hubs, it becomes precompressed, thereby providing the zero backlash feature which characterizes the transmission performance of this coupling. With zero backlash, the coupling remains torsionally rigid within the range of the precompression load, but does permit the absorption of radial, angular, and axial misalignments as well as undesired vibrations. The significantly wide precompressed area of the flexible element keeps the contact pressure against the elastic element low. Therefore, the element teeth can be overloaded many times without undergoing any wear or taking a permanent set. Advantages ® The TRASCO ES coupling provides the following advantages: » “zero-backlash” motion transmission. » dampening (up to 80%) of vibrations from motor shaft. » low heat and electrical conductivity. » easy and fast installation. » perfect balance (A & AP type). » low moment of inertia (due to compact design and types of materials used). Main applications ® TRASCO ES couplings are most frequently used with: » servomotors. » robotics. » sliding tables. » spindle controls for drilling and grinding mandrels. » ball-bearing screws. Operating Temperature Range ® The operating temperature range for the TRASCO ES depends on the type of element. For the 92° Sh. A (yellow), the range is between -40 and +90°C, and for the 98° Sh.A (red), the range is between -30 and +90°C. Peak temperatures as high as 120°C can be tolerated for brief instances. High operating temperatures can cause the elastic element to lose a considerable amount of elasticity, thus substantially lowering the torque handling capacity. Therefore, when selecting a coupling, the operating temperature must be carefully considered (see “ on page 3”). Technical characteristics ATEX Directive 2014/34/EU ® It is possible to ask for specific certification for use in hazardous area according to EC standard 94/9/EC. TRASCO ES couplings are available with specific mounting/operating instruction manual and conformity. For further information, please contact jbj Techniques Limited technical office telephone: +44(0)1737 767493 or email: info@jbj.co.uk T (°C) Torsion angle (rad) 2 www.jbj.co.uk/couplings.html #DriveLineHarmony
Technical Characteristics ® TRASCO ES Zero Backlash Jaw Couplings Max. Axial Misalignment DKa (mm) Size Shore Hardness Nominal Torque T (Nm) kn Maximum Torque T (Nm) kmax Torsional Rigidity Static CTstat. (Nm/rad) Torsional Rigidity Dynamic CTdyn. (Nm/rad) Radial Stiffness Cr (N/mm) Max. Radial Misalignment DKr (mm) Maximum Angular Misalignment DKw 80° Sh.A (Blue) 0,7 1,4 8 26 114 0,6 0,15 1,1 7 92° Sh.A (yellow) 1,2 2,4 14 43 219 0,6 0,10 1,0 98° Sh.A (red) 2 4 22 69 421 0,6 0,10 0,9 80° Sh.A (Blue) 1,8 3,6 16 52 125 0,8 0,20 1,1 92° Sh.A (yellow) 3 6 29 95 262 0,8 0,15 1,0 9 98° Sh.A (red) 5 10 55 155 518 0,8 0,10 0,9 64° Sh.D (green) 6 12 75 225 740 0,8 0,08 0,8 80° Sh.A (Blue) 3 6 85 250 275 0,9 0,20 1,1 92° Sh.A (yellow) 5 10 165 480 470 0,9 0,15 1,0 12 98° Sh.A (red) 9 18 240 720 845 0,9 0,08 0,9 64° Sh.D (green) 12 24 330 980 1200 0,9 0,05 0,8 80° Sh.A (Blue) 4 8 60 180 153 1,0 0,21 1,1 92° Sh.A (yellow) 8 15 115 344 336 1,0 0,15 1,0 14 98° Sh.A (red) 13 25 170 513 604 1,0 0,09 0,9 64° Sh.D (green) 16 32 235 702 856 1,0 0,06 0,8 80° Sh.A (Blue) 5 10 370 1120 740 1,2 0,15 1,1 92° Sh.A (yellow) 10 20 820 1920 1260 1,2 0,10 1,0 19/24 98° Sh.A (red) 17 34 990 2350 2210 1,2 0,06 0,9 64° Sh.D (green) 21 42 2500 3800 2970 1,2 0,04 0,8 80° Sh.A (Blue) 17 34 860 1390 840 1,4 0,18 1,1 92° Sh.A (yellow) 35 70 2.300 5.130 1.900 1,4 0,14 1,0 24/28 98° Sh.A (red) 60 120 3.700 8.130 2.940 1,4 0,10 0,9 64° Sh.D (green) 75 150 5.000 11.000 3.700 1,4 0,07 0,8 80° Sh.A (Blue) 46 92 1.370 2.350 990 1,5 0,20 1,1 92° Sh.A (yellow) 95 190 3.800 7.270 2.100 1,5 0,15 1,0 28/38 98° Sh.A (red) 160 320 4.200 10.800 3.680 1,5 0,11 0,9 64° Sh.D (green) 200 400 10.000 20.000 4.400 1,5 0,08 0,8 80° Sh.A (Blue) 95 190 3.000 6.100 1.400 1,8 0,22 1,1 92° Sh.A (yellow) 190 380 5.600 12.000 2.900 1,8 0,17 1,0 38/45 98° Sh.A (red) 325 650 8.140 21.850 5.040 1,8 0,12 0,9 64° Sh.D (green) 405 810 25.000 40.000 6.500 1,8 0,09 0,8 80° Sh.A (Blue) 130 270 4.500 9.600 1.950 2,0 0,24 1,1 92° Sh.A (yellow) 265 530 9.800 20.500 4.100 2,0 0,19 1,0 42 98° Sh.A (red) 450 900 15.180 34.200 5.940 2,0 0,14 0,9 64° Sh.D (green) 560 1.120 37.000 70.000 7.300 2,0 0,10 0,8 80° Sh.A (blue) 150 300 5.500 11.200 2.100 2,1 0,27 1,1 92° Sh.A (yellow) 310 620 12.000 22.800 4.500 2,1 0,23 1,0 48 98° Sh.A (red) 525 1.050 16.600 49.400 6.820 2,1 0,16 0,9 64° Sh.D (green) 655 1.310 57.000 100.000 8.300 2,1 0,11 0,8 80° Sh.A (blue) 200 400 6.000 11.000 1.500 2,2 0,28 1,1 92° Sh.A (yellow) 410 820 13.000 23.100 3.200 2,2 0,24 1,0 55 98° Sh.A (red) 685 1.370 24.000 63.400 7.100 2,2 0,17 0,9 64° Sh.D (green) 825 1.650 100.000 130.000 9.200 2,2 0,12 0,8 92° Sh.A (yellow) 625 1.250 23.500 35.000 6.410 2,6 0,25 1,0 65 98° Sh.A (red) 900 1.800 48.000 71.500 6.620 2,6 0,18 0,9 64° Sh.D (green) 1.040 2.080 118000 19000 8850 2,6 0,13 0,8 98° Sh.A (red) 1.920 3.840 79.150 150.450 8.650 3,0 0,21 0,9 75 64° Sh.D (green) 2.400 4.800 182.000 315.000 12.000 3,0 0,15 0,8 ® These technical characteristics apply to all types of TRASCO ES couplings. When using the M, A and AP versions, check the torque values given in the table ® against the allowable hub transmission values for the respective versions given in the relevant sections. TRASCO ES couplings can withstand axial, radial, and angular misalignment. Even after operating for an extended period with misalignment, there is still zero backlash because the elastic element is only stressed by pressure loads. When an application causes a high degree of misalignment, a double flexing type coupling can be provided which avoids the formation of reaction forces. All technical data in this catalogue is valid for rotation speeds of 1500 rpm and a working temperature of 30 °C. For linear speed over 30 m/s, dynamic balancing is recommended. Contact jbj Techniques Limited, technical office telephone: +44(0)1737 767493 or email: info@jbj.co.uk 3 www.jbj.co.uk/couplings.html #DriveLineHarmony
Installation & Maintenance ® TRASCO ES Zero Backlash Jaw Couplings 4 www.jbj.co.uk/couplings.html #DriveLineHarmony Installation and Maintenance 1. Carefully clean the shafts. 2. Insert the hubs onto shafts being connected. With the M, A and AP versions, be sure to tighten the screws with the Ms torque value given in the catalogue. Be careful with the A and AP versions to tighten the screws uniformly to the recommended torque. 3. Position the element in one of the two coupling hubs. 4. Fit together the two coupling halves, making sure the “s” dimension is properly observed. This must be done to insure proper elastic element function and long service life, as well as to assure the coupling is properly insulated electrically. With the A and AP versions, mounting the hubs can be facilitated by lubricating the shaft contact surfaces with an oil, but do not use molybdenum bisulphide based oils. ® When mounting the TRASCO ES coupling an axial thrust is generated which disappears when the mounting has been completed to avoid putting axial loads on the bearings. Lubrication of the elastic element will reduce the amount of axial force required during installation Note: All rotating parts must be guarded. ANGULAR misalignment PARALLEL misalignment AXIAL movement/misalignment
The coupling must be chosen so the applied working loads do not exceed the allowable values whatever the working conditions are. 1. Check the load with respect to the nominal torque. The nominal coupling torque must be greater than or equal to the nominal torque of the drive machine for all working temperatures. T ≥T•S•S KN K q D 2. Check the load with respect to the torque peak values. The maximum coupling torque must be greater than or equal to the torque peaks that occur during operation for all working temperatures. T ≥T•S•S+T•S•S Kmax S Z q K q D (1) (1) Motor-side peaks: T = T • 1 • S + T Driven-side peaks: T = T • m • S + T S AS A L S LS L L m + 1 m + 1 3. Check the load with respect to periodic torque inversions. By means of resonance. When the resonance frequency is passed rapidly below the operational interval a few torque peaks will be seen. The generated alternating loads must be compared with the maximum torque the coupling can support. T ≥T•S•S+T•S•S Kmax S Z q K q D (1) (1) Motor-side peaks: T = T • 1 • V + T Driven-side peaks: T = T • m • V + T S AI R L S LI R L m + 1 m + 1 4. Check the load with respect to nonperiodic torque inversions. To check the load with respect to nonperiodic torque inversions, the following equations must be satisfied: 0.25 T = T ≥ T • S • S • S KN KW W q f D Motor-side peaks: T = T • 1 • V Driven-side peaks: T = T • m • V W AI fi W LI fi m + 1 m + 1 (1) TL to be added if a torque peak occurs during acceleration. Calculation coefficients Selection in Accordance with DIN 740.2 ® TRASCO ES Zero Backlash Jaw Couplings 5 www.jbj.co.uk/couplings.html #DriveLineHarmony
Application Selection Load Check Example of Selection ® TRASCO ES Zero Backlash Jaw Couplings 6 www.jbj.co.uk/couplings.html #DriveLineHarmony T Coupling nominal torque Nm KN T Motor-side nominal torque Nm K T Coupling maximum torque Nm Kmax T Motor peak torque Nm S T /T Driver-side peak torque Nm AS AI T Acceleration delivered torque Nm L T /T Driven-side peak torque Nm LS LI V Resonance factor R V Torque amplification factor fi m Mass factor 2 J Motor-side inertia kgm A 2 J Driven-side inertia kgm L Ψ Dampening factor -1 n Resonance speed min R C Torsional rigidity Nm/rad T M Transmissible torque moment Nm T S Motor-side shock factor A S Driven-side shock factor L S Start frequency factor Z S Temperature factor θ S Torsional rigidity factor D S Frequency factor f T Torque with reversal of the machine Nm W T Torque with reversal transmissible by the coupling Nm KW T Hub-shaft connection maximum torque Nm Cal
Model Types ® TRASCO ES Zero Backlash Jaw Couplings 7 www.jbj.co.uk/couplings.html #DriveLineHarmony GESF C Type From size 14. Hub model type with finish bore, Clamping hub model type. Clamping hub model type with double slot and keyway. Compact clamping hub model type. Split clamping hub model type for radial assembly of the coupling torque depends on bore diameter. Model type with locking ring. This execution is suitable for high speed and high torque. Screws mounting from spider side. Transmissible torque depends on bore diameter. GESM Type GESM...C Type GESMC Type GES2M Type GESA Type GESAP Type Model type with locking ring with high machining accuracy: design suitable for application on spindles according to DIN 69002. GESF Type From size 7 to 9. Hub model type with finish bores, and two setscrews. Finished Bore Hubs Clamp Hubs Models Shrink Disc Models
Fig. 2 Fig. 3 Fig. 1 Standard Type ® TRASCO ES Zero Backlash Jaw Couplings These coupling hubs are available from stock with either solid hub or with finished bores of standard shaft diameters. The setscrews of our finished bore execution are positioned 120 degrees from each other with one positioned 180 degrees from the keyway. Both the solid hub and bored hub coupling are generally available from stock for quick delivery. Approved according to ATEX Directive. -6 7 3 7 0.003 0.085 x 10 40.000 -6 9 4 10 0.008 0.48 x 10 28.000 -6 12 4 12 0.015 1.5 x 10 22.000 -6 14 4 16 0.019 2.7 x 10 19.000 -6 19/24 6 24 0.066 20.4 x 10 14.000 -6 24/28 8 32 0.140 74.5 x 10 10.600 -6 28/38 10 38 0.253 200.3 x 10 8.500 -6 38/45 12 45 0.455 400.6 x 10 7.100 -6 42 14 55 2.000 2,246 x 10 6.000 -6 48 20 60 2.520 3,786 x 10 5.600 -6 55 25 70 4.100 9,986 x 10 5.000 -6 65 25 80 5.900 18,352 x 10 4.600 -6 75 30 95 6.900 27,402 x 10 3.700 Bore tolerance: H7 - JS9 (DIN 6885/1) keyway Aluminium Hubs 2 J(kgm ) W(kg) Hub Hub F min (mm) F max (mm) nmax -1 (min ) A (mm) G (mm) H-a (mm) L (mm) I (mm) M (mm) N (mm) S (mm) P (mm) C MS (Nm) t (mm) Fig. 8 www.jbj.co.uk/couplings.html #DriveLineHarmony MS Screw tightening torque Nm W Weight kg J Moment of inertia kgm2 n Maximum rpm min-1 max Ordering Code GESF 24/28 F20 GESP: solid hub GESF: bore + keyway + set-screw Size F...: bore diameter AES 24/28 R TRASCO ES spider ® Size B: 80 Sh A (blue) G: 92 Sh A (yellow) R: 98 Sh A (red) V: 64 Sh D (green) Hub Spider Fig. 1 Fig. 3 Steel Hubs L F A I M I P S N S C t G F a A L M I I P SNS H G C t t F N S M I I L S P G A C t t 120° Fig. 2 14 - - 22 7 8 6 1.0 6.0 M3 0.3 3.5 1 20 7.2 - 30 10 10 8 1.0 2.0 M3 0.3 5 1 25 8.5 - 34 11 12 10 1.0 3.0 M4 1.5 5 2 30 10.5 - 35 11 13 10 1.5 2.0 M4 1.5 5 2 40 18 - 66 25 16 12 2.0 3.5 M5 2 10 2 55 27 - 78 30 18 14 2.0 4.0 M5 2 10 2 65 30 - 90 35 20 15 2.5 5.2 M6 4 15 2 80 38 - 114 45 24 18 3.0 5.6 M8 10 15 2 95 46 - 126 50 26 20 3,0 5,6 M8 10 20 2 105 51 - 140 56 28 21 3,5 6,0 M8 10 25 2 120 60 - 160 65 30 22 4,0 9,0 M10 17 20 2 135 68 - 185 75 35 26 4,5 8,3 M10 17 20 2 160 80 53-135 210 85 40 30 5,0 8,3 M10 17 25 3
“MC” Execution with Clamp Hubs - Compact Type ® TRASCO ES Zero Backlash 9 www.jbj.co.uk/couplings.html #DriveLineHarmony S (mm) S t N S I M I L P F G A f E Size Aluminum Hubs 7 3 7 M2 0,6 40.000 14 18 5 8 6 1,0 6 2,5 16,6 9 4 10 M2,5 1,0 28.000 20 24 7 10 8 1,0 2 3,5 21,3 12 4 12 M3 1,4 22.000 25 26 7 12 10 1,0 3 3,5 26,2 14 6 16* M4 2,9 19.000 30 32 9,5 13 10 1,5 2 4,8 30,5 19/24 10 24* M6 11,0 14.000 40 50 17 16 12 2,0 3,5 8,5 45,0* 24/28 10 32 M6 11,0 10.600 55 54 18 18 14 2,0 4 9,0 57,5 28/38 14 35 M8 25,0 8.500 65 62 21 20 15 2,5 5,2 10,5 69,0 38/45 18 45 M10 49,0 7.100 80 76 26 24 18 3,0 5,6 13,0 86,0 Size Recommended ‘M’ Coupling Type Hub Bore Dia. (mm) and Transmissible Torque (Nm), valid for shaft tolerances k6 3 4 5 6 7 8 9 1011121415161819202224252830323538404245 7 0,8 0,9 1,0 1,0 1,1 9 2,1 2,2 2,3 2,5 2,6 2,8 12 3,4 3,6 3,8 3,9 4,1 4,3 4,4 4,6 4,8 14 7,1 7,4 7,7 8,0 8,3 8,6 8,9 9,2 5,8 6,0 6,1 19 24,4 25,1 25,8 26,5 27,1 28,5 29,2 29,9 31,2 31,9 32,6 25,4 26,3 24 23 25 27 32 34 36 41 43 45 50 54 57 63 68 72 28 58 62 66 75 79 83 91 100 104 116 124 133 145 38 99 105 119 125 132 145 158 165 184 198 211 230 250 263 277 296 F min (min) F min (max) C Ms (Nm) nmax -1 (min ) A (mm) L (mm) I (mm) M (mm) N (mm) P (mm) t (mm) E (mm) *Size 14 up to bore Ø screw 12 M4, over screw M3. Size 19/24 up to bore Ø 20 screw M6, over screw M5 (Ø E= 46,7 mm)
“M” Type with Clamp Hubs ® TRASCO ES Zero Backlash Jaw Couplings 10 www.jbj.co.uk/couplings.html #DriveLineHarmony This type of coupling permits quick, positive mounting, without any shaft-hub backlash. With the keyless coupling type, the torque applied for tightening down the screws (Ms) must be as given in the table. The M coupling type is available with or without keyway. Approved according to ATEX Directive. 7 3 7 M2 0,35 0,003 0,085 x 10-6 40.000 9 4 10 M2,5 0,75 0,007 0,42 x 10-6 28.000 12 4 12 M3 1,4 0,015 1,4 x 10-6 22.000 14 6 16 M3 1,4 0,018 2,6 x 10-6 19.000 19/24 10 24* M5 11 0,071 18,1 x 10-6 14.000 24/28 10 32 M6 11 0,156 74,9 x 10-6 10.600 28/38 14 38 M8 25 0,240 163,9 x 10-6 8.500 38/45 18 45 M8 25 0,440 465,5 x 10-6 7.100 42 25 50 M10 70 2,100 3.095 x 10-6 6.000 48 25 55 M12 120 2,900 5.160 x 10-6 5.600 55 35 70 M12 120 4,000 9.737 x 10-6 5.000 65 40 80 M14 190 5,800 17.974 x10-6 4.600 75 40 80 M16 295 8,100 29.304 x10-6 2.950 Aluminium Hubs 2 J(kgm ) W(kg) Hub Hub F min (mm) F max (mm) nmax -1 (min ) A G H-a L I M N S P E Fig. Steel Hubs - 14 - - 22 7 8 6 1,0 6 4 15,0 1 - 20 7,2 - 30 10 10 8 1,0 2 5 23,4 1 180° 25 8,5 - 34 11 12 10 1,0 3 5 27 1 180° 30 10,5 - 35 11 13 10 1,5 2 5,5 32,2 1 120° 40 18 - 66 25 16 12 2,0 3,5 12 45,7* 1 90° 55 27 - 78 30 18 14 2,0 4 12 57,5 2 90° 65 30 - 90 35 20 15 2,5 5,2 13,5 72,6 2 90° 80 38 - 114 45 24 18 3,0 5,6 16 83,3 2 - 95 46 - 126 50 26 20 3,0 5,6 20 78,8 2 - 105 51 - 140 56 28 21 3,5 6 21 108,0 2 - 120 60 - 160 65 30 22 4,0 9 26 122,0 2 - 135 68 - 185 75 35 26 4,5 8,3 27,5 139,0 2 - 160 80 53-135 210 85 40 30 5,0 8,3 30 147,5 3 t Keyway Position a f Ms (Nm) *Size 19/24 up to bore Ø 20 screw M6, over M5 screw (Ø E= 46,7 mm). From size 7 to 19/24: single slot execution. From size 24/28 to 65: double slot execution. Bore tolerance: F7 - JS9 (DIN 6885/1) keyway. Ms Screw tightening torque Nm W Weight kg J Coupling moment of inertia kgm2 n Maximum rpm min-1 max A I M I N L S S P F G t E f A S S N L M I I P t F G E f P a M I I Keyway position S N L S H t F G A E f E α Fig. 1 Fig. 1 Fig. 2 Fig. 2 Fig. 3 Fig. 3 All measurements in millimetres unless otherwise stated.
“M” Type with Clamp Hubs ® TRASCO ES Zero Backlash Jaw Couplings 11 www.jbj.co.uk/couplings.html #DriveLineHarmony Ordering Code Using hub execution ‘M’ without keyway, the maximum transmissible torque is the minor between the clamp-hub transmissible torque and the value stated in the section “Technical characteristics” page 3. GESM 48 G ® ESM: TRASCO ES hub Size F...: bore diameter F...C: bore diameter and keyway Hub AES 24/28 R T ® RASCO ES spider Size B: 80° Sh A (blue) G: 92° Sh A (yellow) R: 98° Sh A (red) V: 64° Sh D (green) Spider F50 Size Recommended ‘M’ coupling Type Hub Bore Dia. (mm) and Transmissible Torque (Nm), valid for shaft tolerances k6 3 4 5 6 7 8 9 10111214151618192022242528303235384042454850556065707580 0,9 1,0 1,0 1,1 1,2 2,1 2,3 2,4 2,5 2,6 2,7 4,1 4,2 4,4 4,6 4,8 5,0 5,2 5,4 5,5 5,0 5,2 5,4 5,5 5,7 5,9 6,1 6,3 6,7 6,8 7,0 28 29 29 31 31 32 34 34 35 30 32 24 27 29 34 37 39 44 46 49 54 59 61 68 73 78 58 62 66 75 79 83 91 100 104 116 124 133 145 62 66 75 79 83 91 100 104 116 124 133 145 158 166 174 187 139 153 167 174 195 209 223 243 264 278 292 313 334 348 254 285 305 326 356 387 407 428 458 489 509 560 326 356 387 407 428 458 489 509 560 611 662 713 488 530 558 586 628 670 697 767 837 907 976 1046 1116 769 808 865 923 961 1057 1154 1250 1346 1442 1538 7 9 12 14 19/24 24/28 28/38 38/45 42 48 55 65 75
12 www.jbj.co.uk/couplings.html #DriveLineHarmony “2M” Type with Clamp Hubs ® TRASCO ES Zero Backlash Jaw Couplings -6 14 5 16 M3 1,3 0,025 4,6 x 10 12.700 -6 19/24 8 20 M6 10 0,078 2,0 x 10 9.550 -6 24/28 10 28 M6 10 0,160 76,3 x 10 6.950 -6 28/38 14 38 M8 25 0,240 176,3 x 10 5.850 -6 38/45 18 45 M8 25 0,470 503,9 x 10 4.750 -6 42 22 50 M10 49 0,750 1.121,7 x 10 4.000 -6 48 22 55 M12 86 1,08 1.870,4 x 10 3.600 Aluminium Hubs 2 J(kgm ) W(kg) Hub Hub F min (mm) F max (mm) nmax -1 (min ) A G H-a L I M N S P E 30 18,5 14,5 21 50 13 10 1,5 32 7,5 11,5 40 25 17,5 31 66 16 12 2 47 8,0 14,5 55 30 22 34 78 18 14 2 57 10,5 20,0 65 35 25 40 90 20 15 2,5 73 11,5 25,0 80 45 33 48 114 24 18 3 84 15,5 30,0 95 50 36,5 53 126 26 20 3 94 18,0 36,0 105 56 39,5 61 140 28 21 3,5 105 18,5 36,0 t f Ms (Nm) Split clamping hub execution for radial assembly of the coupling torque depends on bore diameter. I M H H L I 2 I S N S A F t E e Size Recommended ‘M’ coupling Type Hub Bore Dia. [mm] and Transmissible Torque [Nm], valid for shaft tolerances k6 5 6 7 8 9 1011121415161819202224252830323538404245485055 14 2,8 3,3 3,9 4,4 5,0 5,6 6,1 6,7 7,8 8,3 8,9 19/24 18 20 23 25 27 32 34 36 41 43 45 24/28 23 25 27 32 34 36 41 43 45 50 54 57 63 28/38 58 62 66 75 79 83 91 100 104 116 124 133 145 158 38/45 62 66 75 79 83 91 100 104 116 124 133 145 158 166 174 187 42 132 145 158 165 184 198 211 230 250 263 277 296 316 329 48 212 231 241 270 289 308 337 366 385 404 433 462 481 529
13 www.jbj.co.uk/couplings.html #DriveLineHarmony “A” Type - Shrink Disc ® TRASCO ES Zero Backlash Jaw Couplings This type of coupling provides excellent kinetic uniformity. Furthermore, the absence of keys or set screws makes it a well-balanced coupling and greatly facilitates installation and removal. Exact radial/axial positioning is easy for those applications which require it. The absence of keyways also avoids fretting corrosion and backlash between the shaft and the hub. This is the ideal type of coupling for applications requiring precision and/or high rotational speeds. Approved according to ATEX Directive. Aluminium Hubs 2 J(kgm ) W(kg) Hub Hub F min (mm) F max (mm) nmax -1 (min ) A G L I M S P Steel Hubs N f Ms (Nm) Screws To Lock Elements Note: Both aluminium and steel hubs are locked using steel screws. Ordering Code Size Recommended ‘A’ coupling Type Hub Bore Dia. [mm] and Transmissible Torque [Nm], valid for shaft tolerances k6 Ø10 Ø11 Ø14 Ø15 Ø16 Ø17 Ø18 Ø19 Ø20 Ø22 Ø24 Ø25 Ø28 Ø30 Ø32 Ø35 Ø38 Ø40 Ø42 Ø45 Ø48 Ø50 Ø55 Ø60 Ø65 Ø70 14 10 12 22 19/24 42 46 60 65 69 74 79 84 88 24/28 66 72 77 82 87 92 102 113 118 135 28/38 175 185 205 225 235 266 287 308 339 373 38/45 255 283 312 326 367 398 427 471 515 545 577 620 42 420 460 500 563 627 670 714 790 850 880 48 557 612 649 687 744 801 840 932 1033 55 986 1112 1140 1185 1284 1412 1420 1652 1680 1691 65 1531 1580 1772 1840 1960 2049 2438 2495 2590 GESA 48 F45 ® GESA: TRASCO ES hub - “A” execution Size F...: bore diameter Hub AES 24/28 R ® TRASCO ES spider Size Spider L P f Ø A N S M S I I Ø F Ø F f Ø G -6 14 6 14 M3 4 1,3 0,049 7 x 10 28.000 19/24 10 20 M4 6 2,9 0,120 30 x 10-6 21.000 24/28 15 28 M5 4 6,0 0,280 135 x 10-6 15.500 28/38 19 38 M5 8 6,0 0,450 315 x 10-6 13.200 38/45 20 45 M6 8 10,0 0,950 960 x 10-6 10.500 42 28 50 M8 4 35,0 2,300 3.150 x 10-6 9.000 48 35 60 M8 4 35,0 3,080 5.200 x 10-6 8.000 55 35 65 M10 4 71,0 4,670 10.300 x 10-6 6.300 65 40 70 M12 4 120,0 6,700 19.100 x10-6 5.600 30 10,5 50 18,5 13 10 1,5 2 40 18 66 25 16 12 2,0 3,5 55 27 78 30 18 14 2,0 4 65 30 90 35 20 15 2,5 5,2 80 38 114 45 24 18 3,0 5,6 95 46 126 50 26 20 3,0 5,6 105 51 140 56 28 21 3,5 6 120 60 160 65 30 22 4 9 135 68 185 75 35 26 4,5 8,3 B: 80° Sh A (blue) G: 92° Sh A (yellow) R: 98° Sh A (red) V: 64° Sh D (green)
ØA ØF2 H6 ØF H6 ØF ØF1 ØF3 L I2 I I M S N S P “AP” Type Shrink Disc According to DIN 69002 ® TRASCO ES Zero Backlash 14 www.jbj.co.uk/couplings.html #DriveLineHarmony Precision “zero-backlash” coupling designed for multi spindle devices on machine tools or controls with reduced mass, such as short centre spindles, multicentres primary spindles in work stations, or joined to high speed bearings with limited tolerance range. It is suitable for very high speeds of rotation (up to speeds of 50 m/s). -6 14 14 1,89 0,080 11 x 10 28.000 -6 19/24 - 37.5 16 3,05 0,160 37 x 10 21.000 -6 19/24 19 3,05 0,190 46 x 10 21.000 -6 24/28 - 50 24 4,90 0,330 136 x 10 15.500 -6 24/28 25 8,50 0,440 201 x 10 15.500 -6 28/38 35 8,50 0,640 438 x 10 13.200 -6 38/45 40 14,00 1,320 1.325 x 10 10.500 -6 42 42 35,00 2,230 3.003 x 10 9.000 -6 48 45 35,00 3,090 5.043 x10 8.000 -6 55 50 71,00 4,740 10.020 x10 6.300 Steel Hubs & Locking Screws 2 J(kgm ) W(kg) Hub Hub H6 F (mm) Ms (mm) nmax -1 (min ) A 32 50 18,5 15,5 13 10 1,5 2,0 17 17 8,5 37,5 66 25 21 16 12 2,0 3,5 20 19 9,5 40 66 25 21 16 12 2,0 3,5 23 22 9,5 50 78 30 25 18 14 2,0 4,0 30 29 12,5 55 78 30 25 18 14 2,0 4,0 32 30 12,5 65 90 35 30 20 15 2,5 5,2 42 40 14,5 80 114 45 40 24 18 3,0 5,6 49 46 16,5 95 126 50 45 26 20 3,0 5,6 54 55 18,5 105 140 56 50 28 21 3,5 6,0 65 60 20,5 120 160 65 58 30 22 4,0 9,0 65 72 22,5 L I I2 M N S P F1F2F3 Tmax (Nm) Ordering Code Spindle Size ® Trasco ES AP 98 Sh. A 64 sh. D TKN (Nm) 25 x 20 14 12,5 25 16 32 32 x 25 19/24 - 37,5 14 28 17 34 32 x 30 19/24 17 34 21 42 40 x 35 24/28 - 50 43 86 54 108 50 x 45 24/28 60 120 75 150 63 x 55 28/38 160 320 200 400 GESAP 48 F45 ® GESAP: TRASCO ES hub - “AP” execution Size F...: bore diameter Hub AESP 24/28 R ® TRASCO ES spider - “AP” execution Size Spider Tmax (Nm) TKN (Nm) R: 98° Sh A (red) V: 64° Sh D (green)
GESS Double Cardanic Type ® TRASCO ES Zero Backlash Jaw Couplings 15 www.jbj.co.uk/couplings.html #DriveLineHarmony This execution allows higher misalignments. The 2 spiders allow a high vibration dampening providing a decrease in drive noise and longer life of related components (ex. bearings). The intermediate element is made of aluminum alloy and may be used in combination with any type of hub execution. Ordering Code GESS 24 GESS: spacer element Size: 24/28 Spacer element Size Fa max* (mm) E (mm) C (mm) L (mm) V (mm) M (mm) S (mm) N (mm) G (mm) GESF GESM GES2M GESF GESM GES2M 7 7 7 - 14 20 34 34 - 4 8 1 6 – 9 10 10 - 20 25 45 45 - 5 10 1 8 – 14 16 16 16 30 34 56 56 71 8 13 1,5 10 – 19/24 24 24 20 40 42 92 92 92 10 16 2 12 18 24/28 28 32 32 55 52 112 112 112 16 18 2 14 27 28/38 38 38 38 65 58 128 128 128 18 20 2,5 15 30 45 45 45 80 68 158 158 158 20 24 3 18 38 42 55 50 50 95 74 174 174 174 22 26 3 20 46 48 60 55 55 105 80 192 192 192 24 28 3,5 21 51 55 70 70 - 120 88 218 218 - 28 30 4 22 60 65 80 80 - 135 102 252 252 - 32 35 4,5 26 68 GES2M. GES2M. AES.. AES.. GESS.. N S S N M V M C L E S S F G * The max bore depends on the type of hub used 38/45
“GES LR1” Type with Intermediate Shaft ® TRASCO ES 16 www.jbj.co.uk/couplings.html #DriveLineHarmony This zero backlash execution, allows connection to long distance shafts in applications such as lifting screw jacks, gantry robot etc. The intermediate shaft is made of steel but may be of different material for specific need. The presence of 2 spiders, increases the dampening properties and allow high misalignments. MS (Nm) GESF Size External hub Internal hub Dimensions Finished Bores Screws Din912-8.8 M∙L MT (Nm) d min (mm) dmax (mm) 14 4 15 M3 x 12 1.34 6.1 19/24 6 24 M6 x 18 10 34 24/28 8 28 M6 x 20 10 45 28/38 10 38 M8 x 25 25 105 38/45 12 45 M8 x 30 25 123 EHLMNsL2 LR1 LR1 min LZR1 dR x thickness 30 11 35 13 10 1,5 46,5 On Request 65 LR1+22 14 x 2.0 40 25 66 16 12 2,0 80 85 LR1+50 20 x 3.0 55 30 78 18 14 2,0 94 96 LR1+60 25 x 2.5 65 35 90 20 15 2,5 107,5 111 LR1+70 35 x 4.0 80 45 114 24 18 3,0 135 126 LR1+90 40 x 4.0 Coupling code Item Type Execution Bore diameter Order Example GESL38/45 Hub 1 GESP - - GESF38/45F35 - F… GESM F-C F… GESA - F… Spider 1 AES B-G-R-V - AES38/45V Length LR1 LR1= 1200 mm Spider 2 AES B-G-R-V - AES38/45V Hub 2 GESP - - GESF38/45F35 GESF - F… GESM F-C F… GESA - F… Coupling configurator
“GES LR3” Type with Intermediate Shaft ® TRASCO ES 17 www.jbj.co.uk/couplings.html #DriveLineHarmony Ideal execution for long distance shaft connections. Torque transmission is zero backlash. It is used in applications such as automatic machines, lifting machines, palletizing machines, and handling machines. Designed for length up to 4 m without bearing support (depending on rotation speed). The double slot execution, allows spider mounting and replacement without driver/driven machine displacement. All aluminum alloy for a very low inertia. 14 5 16 M3 1.34 0,00406 0,00238 0,091 893 19/24 8 20 M6 10 0,02002 0,01304 0,329 3244 24/28 10 28 M6 10 0,07625 0,04481 0,0693 6632 28/38 14 38 M8 25 0,17629 0,1095 1,199 11814 38/45 18 45 M8 25 0,50385 0,2572 2,972 29290 42 22 50 M10 49 1,12166 0,5523 4,560 44930 48 22 55 M12 86 1,87044 1,1834 9,251 91158 30 18,5 14,5 36 13 72 DBSE + 29 32 7,5 11,5 27 40 25 17,5 49 16 98 DBSE + 35 47 8,0 14,5 40 55 30 22 59 18 121 DBSE + 44 57 10,5 20 50 65 35 25 67 20 137 DBSE + 50 73 11,5 25 60 80 45 33 83,5 24 169 DBSE + 66 84 15,5 30 70 95 50 36,5 93 26 180 DBSE + 73 94 18 36 80 105 56 39,5 103 28 202 DBSE + 79 105 18,5 36 100 dmin (mm) dmax (mm) Screws D Tightening Torque (Nm) Size Hub 1 J1 Hub 2 J1 Shaft J3 Moment of Inertia 3 2 (10 kgm) with dmax hub 1 CT (Nm/rad) Torsional Rigidity A H I B M DBSE MIN. L E t e dR Dimensions finished bores Clamping Coupling configurator A A A e S ez. A-A SezA-A Coupling code Item Type Execution Bore Diameter Order example GESLR38/45 Hub 1 GES2M F-C F.... GES2M38/45F35 Spider 1 AES B-G-R-V - AES38/45V Distance between shaft DBSE DBSE= 1200 mm Spider 2 AES B-G-R-V - AES38/45V Hub 2 GES2M F-C F.... GESM38/45F35
Technical data for intermediate shaft couplings (GES LR1 - GES LR3) ® TRASCO ES 18 www.jbj.co.uk/couplings.html #DriveLineHarmony Bores and torques for friction with hub without keyway [Nm] 5 6 7 8 9 10 11 12 14 15 16 18 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50 55 14 2,8 3,3 3,9 4,4 5,0 5,6 6,1 6,7 7,8 8,3 8,9 19/24 18 20 23 25 27 32 34 36 41 43 45 24/28 23 25 27 32 34 36 41 43 45 50 54 57 63 28/38 58 62 66 75 79 83 91 100 104 116 124 133 145 158 38/45 62 66 75 79 83 91 100 104 116 124 133 145 158 166 174 187 42 132 145 158 165 184 198 211 230 250 263 277 296 316 329 48 212 231 241 270 289 308 337 366 385 404 433 462 481 529 Size 14 19/24 24/28 28/38 38/45 0.9 0.9 0.9 0.9 0.9 1.0 1.2 1.4 1.5 1.8 Size Angular DKw (°) Axial DKa (mm) Misalignment Radial misalignment DKr = (L – 2 • H – M) • tan(DKw) (mm) Z Angular misalignment = 0,9° for spider Selection diagram GES LR3 coupling
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ensuring a continuing high quality service in which customers can have complete confidence. “ “ Driveline H jbj Techniques is a specialist supplier of high-quality products for the mechanical power transmission and fluid power sectors. The company offers a high level of in-house expertise plus a huge selection of products to meet a very broad range of customer applications. From specification, through technical advice and manufacture to after-sales support, jbj Techniques provides a comprehensive and valued service to the power transmission and hydraulics industries. The company fields a UK-wide team of technical sales engineers to ensure that the business is close to its customers, and it enjoys excellent associations with European manufacturers, acting as sole UK distributor in many cases. jbj’s team is recognised for its expertise in the selection and configuration of hydraulic and mechanical transmission systems. Able to draw on an that extensive product range provides the building blocks for bespoke systems both large and small, the in-house design team offers a complete service, ranging from an assessment of customer requirements to full technical backup, including product specification, CAD based system design, system build and certification. Moreover customers can take advantage of jbj’s own machine-shop facilities and skilled engineers guarantee to quality and control costs. jbj Techniques provides one of the widest ranges of couplings available within the UK; mechanical power transmission couplings for a vast range of applications. Ranging from miniature couplings, all steel gear couplings, flexible spider couplings, shaft couplings, torque limiting couplings, disc and grid type couplings, ATEX compliant and shaft locking devices. Magnetic couplings for power transmission between hermetically sealed areas. However as extensive as the selection is, couplings make up a fraction of jbj’s portfolio. As power transmission specialists the company stock and provide gearboxes, clutches, pumps, hydraulic motors, flow meters, fluid power accessories including: cooling & heat exchange products, reservoirs, pipe flanges, seals and level indicators, as well as a variety of bellhousings and engine adaptors, to name just a few of the product categories. jbj Techniques Limited is proud of it’s relationship and reputation with customers and suppliers. The core client base is stable and loyal, which is testament to the quality of service provided by the company. A similar relationship exists with suppliers, ensuring a continuing high quality service in which customers can have complete confidence. Dampers Engine Adaptor Kits Hydraulic Adaptors Torque Limiting Couplings Tyre Couplings Anti-static/Flameproof Couplings Torsionally Rigid Couplings Torsionally Flexible Couplings Bellhousings Permanent Magnetic Couplings Torsional Couplings to Large Combinations Small Individual Components
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