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Page 56Renoldflex∆ R AD. [% ] Offset misalignmen t1008060402075%50%25%00 20 40 60 80 1000∆ ANG. [%]Angular misalignment21.81.61.41.21f 1 Misalignment factorWorkpreferential area0 0.2 0.4 0.6 0.8 1Note: Allowance shouldbe made for changein misalignmentencountered duringoperation.e.g. due to thermalexpansion.∆ tot. [°]f3 Temperature factor1.41.31.21.110 60 120 180 240 [°C]For applications withtemperatures over80˚C this must bestated on order.∆ AX. [%] Axial misalignmentWorking temperature[ fig 02 ] Misalignment diagram [ fig 03 ] Misalignment factor f 1[ fig 04 ] Temperature factor f 2Renoldflex coupling size selectionIn order to select the most suitable sized coupling, a numberof service factors must be taken into consideration. Theseservice factors make adjustments to the design torque(T) of an application to take into account factors such asmisalignment, load classification, driver classification as wellas high ambient temperatures to produce a selection torque(T S, where T S= T x f S). The most suitable coupling is thenselected by comparing the selection torque (T S) and thecouplings nominal torque (T N). Please note – it is importantto ensure that the coupling selected will accept the requiredshaft diameters. Should shaft diameter exceed the maximumpermissible then a larger coupling should be selected.The total service factor f S= f 1x f 2x f 3; where f1 is themisalignment factor, f 2is the load classification factor and f 3isthe temperature factor. Note; the load classification factor isweighted depending upon the prime mover classification. Theseservice factors are defined below:Misalignment factor f 1The maximum misalignments quoted within the technical datafor the Renoldflex coupling range cannot be present at thesame time. Therefore, the presence of any axial misalignment∆ax reduces the possibility for offset misalignment ∆rad andangular misalignment ∆ang, which can be seen in [ fig 02 ]. Thecombined total angular misalignment ∆TOT is a function of theangular misalignment ∆ang and offset misalignment ∆rad of theshafts, according to the following formula:∆TOT [°]= ∆ang + arctan ∆rad2(H-B)The values H and B [mm] are given in the overall dimensionstable. The misalignment factor f 1is a function of ∆TOT as shownin [ fig 03 ].Load factor f 2The following load factors apply for machines operated byelectric or hydraulic motors as well as steam or gas turbines.load factorOPERATING MACHINE f 2Blowers: low inertia 1.1Blowers: high inertia, cooling towers 2.0Centrifugal pumps: low inertia and light liquids 1.1Centrifugal pumps: high inertia or semi-liquidmaterials 1.75Conveyors 1.5Elevators and cranes 2.0Gear pumps 1.5Machine tools: auxiliary drives 1.1Machine tools: main drives 1.75Mills 2.5Paper machines and textile machines 2.0Presses 3.0Reciprocating pumps 2.5Woodworking machines 1.5For machines operated by alternative prime movers the loadfactor f 2must be adjusted as follows:• f 2+1 for machines operated by IC engines with 4 or 5 pistons.• f 2+0.5 for machines operated by IC engines with 6 pistons,hydraulic turbines or with a start torque >2.• The following must be taken into account with regard torepetitive high peak torque applications:• For non reversing duty: T> Peak torque• For reversing duty: T> 1.5 Peak torque.Temperature factor f 3Renoldflex couplings are unaffected by temperatures upto 160°C. For applications with higher temperatures, thetemperature factor f 3seen in [ fig 04 ] must be taken intoconsideration.Resilient and Soft Start Couplings
Page 57RenoldflexRenoldflex Type Arpm45004000350030002500200015001000 Balancing not necessary.5000Size[ fig 05 ] BalancingDynamic balancingsuggested.40 53 72 89 118 142 168 200 238Renoldflex Type Brpm1750150012501000Dynamic balancingsuggested.750500250 Balancing not necessary.00 250 500 750 1000 1250 1500 1750 2000H = Spacer length[ fig 06 ] BalancingBalancing; Renoldflex standard elements are balanced to grade G6.3 - BS ISO 1940-1:2003.Additional balancing is recommended for applications over the speed curves in [ fig 05 ] and [ fig 06 ].* Renoldflex allows 1.75 times the nominaltorque for short periods of time.** See [ fig 05 ] & [ fig 06 ].*** The torsional stiffness of a single packcomplete coupling can be approximatedto the torsional stiffness of 1 disc pack C kThe torsional angle of a single pack coupling[°] =180 Tπ C kThe torsional stiffness of a complete double packcoupling can be approximated to:C TOT = 1 H,B – see catalogue overall dims2 + H-2BC k C hThe torsional angle of a double pack coupling[°] =180 Tπ C kT (Nm) – Transmitted torqueOther Renoldflex Types available (Please consult Renold)Type EType FType GType HH minType HType LType MM minType MType NType Pwww.renold.com
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Page 03Renold CouplingsRenold have
Page 7 and 8: Page 05Typical ApplicationsDiscflex
Page 9 and 10: Page 07TheCollectionRigid CouplingR
Page 11 and 12: Page 09Coupling Comparison ChartNom
Page 13 and 14: ØØPage 11OOCoupling Selection Gui
Page 15 and 16: Page 13Service Factors and Selectio
Page 17 and 18: Page 15Taper BushesMetric rangeBush
Page 19 and 20: Page 17SpiderflexGH1H2 H1H2 H1Assem
Page 21 and 22: Page 19Spiderjaw and SpiderwrapA me
Page 23 and 24: Page 21SpiderwrapH1H2H2LDBDBDBC1C2C
Page 25 and 26: Page 23PinflexEFDDB BC1C2C2 C2Type
Page 27 and 28: Page 25Pinflex Brakedrum CouplingGH
Page 29 and 30: Page 27CrownpinAn established pin/b
Page 31 and 32: Page 29CrownpinComponent SparesCoup
Page 33 and 34: Page 31TyreflexFL1C1TY40 - TY60L2C2
Page 35 and 36: Page 33DiscflexA general purpose fa
Page 37 and 38: Page 35DiscflexOrdering codeD 52 #
Page 39 and 40: Page 37ChainflexFOrdering codeC 63
Page 41 and 42: Page 39GearflexRenold Gearflex cons
Page 43 and 44: Page 41Adapted and Custom Gear Coup
Page 45 and 46: Page 43Gearflex Heavy Duty B series
Page 47 and 48: Page 45Gearflex Heavy Duty B series
Page 49 and 50: Page 47Gearflex High Misalignment D
Page 51 and 52: Page 49Gearflex A series Double Eng
Page 53 and 54: Page 51Gearflex High Speed Double E
Page 55 and 56: Page 53RenoldflexA torsionally stif
Page 57: Page 55RenoldflexL1AHABBF1L1AHABBF1
Page 61 and 62: Page 59Operating PrinciplesOUTER Ou
Page 63 and 64: Page 61‘Soft’ Starting600600600
Page 66 and 67: Page 64Standard Available OptionsNo
Page 68 and 69: Page 66Hydrastart Pinflex Coupling
Page 71 and 72: Page 69Hydrastart Pulley - Dimensio
Page 73 and 74: Page 71Noteswww.renold.com
Page 75 and 76: The best range of solution chain pr
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