TRASCO JUBOFLEX “P” COUPLINGS BOLT COUPLINGS

1 TRASCO COUPLINGS TRASCO JUBOFLEX P COUPLINGSBOLT COUPLINGS1 Direct Drives 2016_EN_1_Giunti di 15/06/2016 14:32 Pagina 1 TRASCO CouplingsPageDescription3 ATEX 94/9/EC compliance3 TRASCO coupling sizing as per DIN 740/25 Type of stress, misalignment 6 Technical performances7 TRASCO COUPLINGS for motors according to IEC standards8 GR base program9 Stock range - Hub with finished bore H7, keyway and stop screw10 GRB taper bushing series 11 GRCAL series for use with SIT-LOCK elements type 812 GRL series with intermediate shaft13 GRL CAL3 series with intermediate shaft14 GRF flange series15 GRF C flange series16 GRS double cardanic series17 GR FRT drum brake series18 GR FRD brake disc series19 TRASCO COUPLINGS weight and moment of inertia 20 Tables for TRASCO COUPLINGS with taper or splined bores21 JUBOFLEX Elastic CouplingDescription22 Features23 - 24 P Elastic COUPLINGS P elastic couplings25 bolt CouplingsBolt couplings26 Contents1 Direct Drives 2016_EN_1_Giunti di 15/06/2016 14.

2 32 Pagina 2 TRASCO couplingsTRASCO flexible coupling is the flexible and omocinetic cou-pling that assures the best performance in relation to the physi-cal space occupied in its has a very compact design and allows safe power transmissionby absorbing peak loads and torsional , the elastic design of the polyurethane gear ring com-pensates for angular and radial misalignments and also absorbssmall shaft length involute profile of the gear ring teeth prevents high stressconcentrations on reduced surfaces and the crowned profile andavoids the transmission of axial high duty factor of TRASCO COUPLINGS is due to the fact thatthe elastic element works under compression and never COUPLINGS are suitable for working in both horizontaland in vertical positions and easily support any load variation orreversal motion.

3 The two coupling halves are electrically insula-ted from each flexible COUPLINGS consist of two precision machinedmetal hubs and an elastic gear ring (spider) which is resistant tooils, chemical agents, and are available in cast iron GG25 or aluminum and, in caseof special request, in steel or cast iron hub is available in version A and B (in standard or longhub L version) which can accommodate different size of bores,leaving unchanged the performance and the technical 94/9/EC complianceIt is possible to ask for specific certification for use in hazardousarea according to EC standard 94/9/EC. TRASCO COUPLINGS are available with specific mounting/operating instruction manual and conformity. For information, please contact our technical Drives TRASCO Description A Execution AR Spider B Execution BL Execution AL Execution1 Direct Drives 2016_EN_1_Giunti di 15/06/2016 14.

4 32 Pagina DrivesStandard spiders(Shore)ColorCompoundAdmissible Temperature [ C]Applicationson work peaks92 Sh AYellowPolyurethanefrom - 40 to + 90from - 50 to + 120 the most of industrial application (low-mid power)98 Sh ARedPolyurethanefrom - 30 to + 90from - 40 to + 120 high torque narrow angular misalignment torsional rigidity64 Sh DGreenPolyurethanefrom - 30 to + 110from - 30 to + 130 dampened areas internal combustion enginesSpiderThe gear ring is made of a particular polyurethane resin whichshows great advantages in comparison to the standard polyu-rethanes available on the urethane compound of our polyurethane gear ring offersresistance to aging, hydrolysis, fatigue, and abrasion making itsuitable for even the most demanding applications in high humidity conditions.

5 It is self-dampening and shows a great resistance tothe main chemical agents, acids, oils, and types of gear rings are available in order to provide theright solution for each specific application covering a large rangeof temperatures and resisting specific chemical on request spiders with different compound for special applications: High working temperature Heavy working conditions Heavy environment conditions Resistance to specific chemicals Spiders for special applications(Shore)ColorCompoundAdmissib le Temperature [ C]Applicationson work peaks80 Sh ABluePolyurethanefrom - 50 to + 80from - 60 to + 120 internal combustion engines / high dynamic solicitations / highly dampened areasPAGreyPolyamidefrom - 20 to + 110from - 30 to + 150 high torsion rigidity / high temperature areas / high resistance1 Direct Drives 2016_EN_1_Giunti di 15/06/2016 14:32 Pagina Drives TRASCO TRASCO coupling sizing is made according to DIN 740/2.

6 COUPLINGS must be selected to ensure that the maximum admissibletorque is never exceeded during is necessary to have correct sizing, so that all conditions hereunder are ) Verify the nominal torqueThe nominal torque of the coupling must be greater than or equal to the nominal torque of the drive multiplied by the temperaturesafety that:Where PNis the motor nominal power in ) Verify the maximum torqueThe max torque of the coupling must be greater than or equal to the starting torque Ts multiplied by the safety factors S , Sz, Su whereSuis the higher value between driver and driven ) Verify torque with reversalIn case of torque with reversals it must be verified that:where Tkw= torque with reversal, which the coupling can bear, and Tw= torque variation of the case of drives with high torsional vibrations ( piston compressors, combustion engine) it is recommended to make a torsionalvibration calculations in order to guarantee the correct functioning of the coupling .

7 Please consult our technical coupling sizing as per DIN 740/2T ( C) 30 C / +30 C +40 C+60 C+80 CS 11,21,41,8 Temperature safety factor0 100 101 200 201 400 401 800SZ11,21,41,6 Safety factor for frequency of starting [[]]NNmmSSTTTT NNKNKN [[]]NNmmnnPP99555500 TTNNNN== [[]]NNmmSSuuSSSSTTTTZZ SSmmaaxxKK [[]]NNmmSSTTTT WWKWKW Hub shaft connection checkHub shaft connection must always be checked by the user. It is important to verify the maximum torque in the drive is lower than thetorque which the hub shaft connection can bear. In case of keyway connection, it is important to verify the tensile strength of the hubmaterial with the load which the keyway seat must load typeSULight1,4 Medium1,5 Hard1,8 Shock load safety factorTKNC oupling nominal torqueNmTKmaxCoupling maximum torqueNmTKWT orque with reversal transmissible by the couplingNmTNMotor nominal torqueNmTSMotor peak torqueNmTWTorque with reversal of the machine NmS Temperature factorSZStart frequency factorSuMotor or driven-side shock factorPNMotor nominal torquekWnrpmmin-11 Direct Drives 2016_EN_1_Giunti di 15/06/2016 14.

8 32 Pagina DrivesType of stress MisalignmentTNTWTKN d dTKNThe values shown in the table for radial and angular misalign-ment, must be corrected in case they are simultaneously actingon the coupling . 11 KKKKKKKK wwwwAArrrrAA ++ PeriodicHarmonicDynamic torsional rigidityn=1500 min-1 KaPMaximum axial misalignment - P executionmm KaSMaximum axial misalignment - S execution mm KrMaximum radial misalignmentmm KwMaximum angular misalignment Kw100% Kr100%The sum of the admissible value (A) and the respective valuesshown in the table must be less than or equal to torsional rigidity CTdin is the first derivate of the nominaltorque of half coupling in respect to the torsion angle. is the tor-sion angle of half coupling in respect to the second half.

9 As a general rule, CTdin is greater than CT and depends on thestress acting on the KaP[mm] Kr[mm] Kw[ ]19/241,20,201 30 24/321,40,221 30 28/381,50,251 30 38/451,80,281 30 42/552,00,321 30 48/602,10,361 30 55/702,20,381 30 65/752,60,421 30 75/903,00,481 30 90/1003,40,501 30 100/1103,80,521 30 110/1254,20,551 30 125/1454,60,601 30 140/1605,00,621 30 160/1855,70,641 30 180/2006,40,681 30 1 Direct Drives 2016_EN_1_Giunti di 15/06/2016 14:32 Pagina Drives TRASCO Technical performancesThe technical performances below refer to all types of TRASCO executions and are valid for the indicated spiders when couplingsare properly particular applications needed, such as very high chemicalresistance, spiders made of special material are our Technical speedDynamic torsional rigidityColorShoreTKN[Nm]TKmax[Nm]TKW[Nm ]n (v=30m/s)[min-1]n (v=40m/s)[min-1]CTdin (1 TKN)[Nm/rad]CTdin (0,75 TKN)[Nm/rad]CTdin (0,5 TKN)[Nm/rad]CTdin (0,25 TKN)

10 [Nm/rad]19/24 Yellow 92 10202,7140001900012801050800470 Red 98 17344,414000190002920239018101070 Green 64 21425,51400019000535043903320197024/32 Yellow92 ,5106001400015110123909370555028/38 Yellow 92 951902585001180010900894067604010 Red 98 160 320428500118002677021950166009840 Green 64 200 400528500118002752022570170601012038/45 Yellow92 92 265 53069600080002374019470147208730 Red 98 450 900 1176000800054500446903379020030 Green 64 560 1120 145600080007986065490495202935048/60 Yellow92 92 410 820 1074750630050720415903145018640 Red 98 680 1250 1784750630094970778805888034900 Green 64 825 1650 2154750630010792088500669103966065/75 Yellow92 92 1280 2560 33335504750113320929207026041650 Red 98 1950 3900 5003550475019750016195012245072580 Green 64 2410 4820