B3M-BM-BMS FLEXIBLE COUPLINGS

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1 BMBMBMS FLEXIBLE OUPLINGS

GENERAL DESRIPTION With decades of experience and thousands of applications on Transfluid fluid couplings the BT flexible coupling line has been

The new series has been studied to provide an exceptionally robust coupling with excellent misalignment capabilities and easy installation and

The BM/BM/BMS require minimal maintenance except for a periodical inspection and replacement of the rubber elements.

This version allows for inspection and removal of the rubber elements while preserving alignment.

2 GENERAL DESRIPTION With decades of experience and thousands of applications on Transfluid fluid couplings the BT flexible coupling line has been expanded to include couplings for shafttoshaft application. The new series has been studied to provide an exceptionally robust coupling with excellent misalignment capabilities and easy installation and assembly. The BM/BM/BMS couplings high quality flexible elements provide reliable performance while protecting the coupled machines. The BM/BM/BMS require minimal maintenance except for a periodical inspection and replacement of the rubber elements. To simplify in this check, especially in alignment free drives, the BM was developed. This version allows for inspection and removal of the rubber elements while preserving alignment. Manufactured with the highest quality materials in Transfluid's new factory in Gallarate Italy the new BM/BM/BMS series is available in different sizes with torque capability exceeding 100Nm (,9 lbsft) ADVANTAGES: ompensation of misalignments Shocks and vibrations damping Fail safe and capable of withstanding high overloads Quick and easy change of flexible elements Maintenance free BM BMBP BM BMS Flexible couplings 7 1

3 0GB :0 Pagina Shaft couplings Standard version for connecting two shafts. The BM allows changing of flexible elements with no need for axial movement of either of the couplings hubs. Brake drum couplings With brake drum. See atalogue for TRANSFLUID BRAKES. Brake disc couplings With brake disc. See atalogue for TRANSFLUID BRAKES. Spacer couplings BM with removable spacer. ombination For connection with a Transfluid fluid coupling. ATEX It is possible to get BM series couplings, with finished bores, certified as equipment for intended use in hazardous zones according to directive 9/9/E (ATEX), surface applications categories Ex II D/G T and Ex II D/G T. The selection of ATEX coupling must consider an additional safety factor (SAtex) as mentioned at page. Flexible couplings 7

4 TEHNIAL DATA TAB. 1 oupling size Nominal torque TKN Technical data for standard rubber elements Maximum torque TKmax Dynamic torsional stiffness (Nm) (lbsft) (Nm) (lbsft) (Nm/rad) (lbsft/rad) Tdyn Max. (*) Nmax (rpm) *Referred to standard materials TAB. IE electric motors TAB. A NEMA electric motors Motor Shaft dia. () Shaft lenght () Motor power at 0 rpm Power (kw) Torque (Nm) oupling size S L L M.0 0 1S M M L M L.00 0 L S M M S 77.0 M S M S M TAB.A Selection based on max allowable bore of the flexible coupling, assuming value 1 for all factors (Sm, St, Sz, SAtex). For applications where the factors are different from 1, the coupling must be properly selected according to selection procedure at page Motor Shaft dia. Shaft lenght Motor power at 10 rpm Power (hp) Torque (lbsft) oupling size 1T T T T T T T T T T T T T T T T T T T T Flexible couplings 7

5 0GB :0 Pagina OUPLING SIZE SELETION ) Known the maximum possible torque during operation Tmax, check that the maximum torque times the temperature factor is lower than the maximum characteristic torque of the chosen coupling TKmax: The coupling must be selected so that the operating conditions of the coupling, do not exceed the maximum allowable load of the coupling itself. For driving machines not generating cyclic torque loads the selection of the coupling can be performed using the driving torque and the corresponding service factor. When the driving machine generates cyclic torque loads (e.g. internal combustion engines) the selection of the coupling must be checked by a torsional analysis of the complete system. Steps to be followed are as follows. TKmax >= Tmax x St alculation example 1) Using the power and rotational speed, calculate the torque of the driving machine TAN: 1) Application data A torsionally elastic coupling type BM installed between an electric motor and a rotary pump gear type. Power of the electric motor: P = 0 kw Rotational speed: n = 1 rpm ) alculation of driving torque TAN The driving torque TAN of the driving machine is: where: P = power of driving machine (kw) n = rotational speed of driving machine (rpm) TAN = torque of driving machine (Nm) TAN = 0 x P / n TAN = 0 x 0 / 1 = 10 Nm ) ce the torque of the driving machine TAN has been calculated, determine the service factor and check that the torque of the driving machine times the service factor, temperature factor and starting factor is lower than the characteristic torque of the chosen coupling TKN: ) heck of the nominal TKN From table Tab. 6 the service factor corresponding to the driven machine load classification is: Sm = 1.. Because the prime mover is an electric motor, it is not necessary to use conversion table Tab. From table Tab. for an ambient temperature of 0, the temperature factor is: St = 1.1 From table Tab. for starting frequency per hour of the starting factor is: Sz = 1.1 The nominal torque TKN of the driving machine is: where: TKN = characteristic torque of the chosen coupling (Nm) Sm = service factor from table Tab. and Tab. 6 St = temperature factor from table Tab. Sz = starting factor from table Tab. SAtex = 1, in case of use in hazardous zones acc. to 9/9/E (Atex). In normal zones, SAtex = 1 TKN >= 10 Nm x 1. x 1.1 x 1.1 = 161 Nm TKN >= TAN x Sm x St x Sz x SAtex ) Selection of the coupling From table Tab. 1, with torque values TKN > = 161 Nm the choice is for coupling size BM 0. Load classifications and service factors of Tab. 6 are referred to turbines and hydraulic or electric motor as the prime mover. If the prime mover is a single or multi cylinder engine, the service factor from the Tab.6 must be replaced by its corresponding value from Tab. ) As final selection step, check compatibility between equipment shaft and max allowable bore of selected coupling TAB. Temperature factor Ambient temperature St F +6 F +10 F + F +6 F >+6 F TAB. onversion table for single or multicylinder engines >+ on TAB. Starting factor Starting frequency per hour 0 0 >0 Sz on Flexible couplings 7 Steam and gas turbines, hydraulic or electric motors (from TAB. 6) Single cylinder engines Multicylinder engines

6 LOAD LASSIFIATION AND SERVIE FATOR TAB. 6 Service factor for steam turbines, hydraulic or electric motors, as prime mover Agitators Pure liquids 1.00 Liquids and solids 1. Blowers entrifugal 1.00 Lobe 1.0 Vane 1. ar dumpers.0 ar pullers intermittent duty 1.0 lay working machinery 1. hemical industry Agitators 1. entrifuges (heavy) 1. entrifuges (lightweight) 1. ooling drums 1. Drying drums 1. Mixers 1. ompressors entrifugal 1. Lobe 1.0 Reciprocating multicylinder.00 onveyors uniform loaded Belt 1.00 Bucket 1. hain 1. Screw 1. onveyors Not uniformly loaded Belt 1. Bucket 1.0 hain 1.0 Reciprocating.0 Screw 1.0 Table.00 ranes and hoists Main hoists.00 Trolley drive 1. Bridge drive 1. Slope 1.0 rushers Grinders. Dredges Bucket conveyors 1.0 able reels 1. utter heads. Maneuvering winches 1. Pumps a1. Screen drive 1. Slewing gears.00 Elevators Bucket 1. Freight.00 Gravity discharge 1.0 Fans entrifugal 1.00 ooling towers.00 Forced draft 1.0 Induced draft w/o damper control.00 Feeders Belt 1. Reciprocating.0 Screw 1. Food industry Beet slicer 1. Filling machines 1.00 ereal cooker 1. Dough mixer 1. Meat grinders 1. Bottling, can filling machine 1.00 Generators, transformers Frequency transformers.00 Generators.00 Welding generators.00 Laundries Tumblers.00 Washing machines.00 Lumber industry Barkers drum type.00 Live rolls.00 Log haul.00 Off bearing rolls.00 Slab conveyor 1.0 Sorting table 1.0 Trier feed 1. Machine tools Bending roll.00 Punch press gear driven.00 Tapping machines.0 Other machine tools Main drives 1.0 Auxiliary drives 1. Metal rolling mills Billet shears. hain transfers 1.0 old rolling mills. ontinuous casting plants.00 ross transfers 1.0 Heavy and medium plate mills. Ingot handling machinery. Ingot pushers. Manipulators. Plate filters. Roller adjustment drivers.00 Roller straighteners.00 Sheet mills. Triing shears 1.0 Tube welding machines. Winding machines (strip and wire).00 Wire drawing benches.00 Mixers oncrete mixers 1. Drum type 1.0 Oil industry hillers 1. Oil pipeline pumps 1. Rotary drilling equipment.00 Paper industry Barker.00 Barking drum (spur gear only). Beater & pulper 1. Bleacher 1.00 alenders.00 ouch 1. utters. platers.00 ylinders 1. Dryers 1. Felt stretcher 1. Felt whipper.00 Log haul.00 Pulper 1.0 Suction roll 1. Washers and thickeners 1.0 Wet presses.00 Winders 1.0 Printing presses 1.0 Pullers.00 Pumps entrifugal 1.00 Reciprocating.00 Rotary gear, lobe, vane 1.0 Rubber calender industry alender.00 Mixer Banbury.0 Rubber mill. Sheeter.00 Tire building machines.0 Tire & tube press openers 1.00 Tubers and strainers.00 Screens Air washing 1.00 Rotary stone or gravel 1.0 Travel water intake 1. Sewage disposal equipment 1. Stone and clay working machines Ball mills. Beater mills. Breakers. Brick presses. Haer mills. Rotary kilns.00 Tube mills.00 Textile machines Batchers 1.0 Looms 1.0 Printing and dyeing machines 1,0 Tanning vats 1.0 Willows 1.0 Water treatment Aerators 1.00 Screw pumps 1.0 Wood working machines Debarking drums.00 Planing machines 1.0 Wood chippers. Wood working machines.0 Flexible couplings 7

7 0GB :0 Pagina 6 BMBMBBMBP BM BMB (with brake drum) BMBP (with brake disc) TAB. 7 Dimensions () D Min G L L1 A B B1 E F H Max Min Max (1.) () (1.77) () (6.69) (.1) (11.) (.91) (6.69) (.6) (1.10) (.) (0.) (.6) (.) (.) (.) (.) (6.69) (.1) (.0) (6.) (7.) (.0) (1.0) (.19) (0.0) (.) (.6) (.97) (.6) (.6) (.7 (.7) (1.9) (7.01) (7.7) (.7) (1.0) (.9) (0.0) (.) (.) (.) (.) (.) (.17) (.7) (6.) (.) (.6) (.7) 10 (.7) 10 (.7) (1.) (1.11) 0 (.07) 0 (9.) 0 6 (.66) (.77) 6 (10.) (.77) 1 (.01) 6 (.) 6 6 (.) (0.) (.) 6 1 (.) (0.) (.) 6 6 Brake Disc X (.06) (.) (.) Y X Z (.1) (.0) (.) (.) (7.6) (0.67) (1.) (0.0) (.) (.1) (.91) (.76) (.) (7.) (0.67) (1.69) (0.) (.) (.1) (6.9) (.1) (.9) (7.) (0.79) (1.) (0.) (.6) (.) (1.) (.6) (.1) (7.) (.9) (7.) (0.91) (.0) (0.) (1.) 61 1 () (1.) () (7.7) (.9) (.7) (1.10) (.0) (0.) (1.10) (.7) (1.7) (.) (9.) (.) (.1) (.) (1.10) (.) (0.) (1.10) 00 0 (1.71) 0 (1.97) (.) Brake Drum K Z1 Y1 Rubber Element Weight BM Kg (lbs) INPUT OUTPUT PD PD (kgm) (kgm) (1) (.) T 0.1 (6.) Type Nr. 7 S 7 S N 0 E 1 P P 9 R I I (.6) 9. (0.) 1 (.6). (7.91) (.91) (7.96) 17 (6.1) (0.1) Metric max bore with a keyway ISO 77 DIN 6/1 Inch max bore with a keyway USAS B.1 square H tolerance: +1/0. (+0.0/0.0 inch) PD (1Kgm) = Wk (7. lbsft) Flexible couplings 7 Dimensions are subject to alteration without notice 6

8 BMBMBBMBP BM BMB (with brake drum) BMBP (with brake disc) TAB. Dimensions () Min 19 (0.) (1.) (1.) (1.6) (.) (.6) 0 (1.7) (.6) 0 (1.7) (1.) (1.77) (.6) (.) (.) (.) D Max () (.) (.) () 0 (.) 1 (.6) (.17) Min (1.) (1.) 0 (1.7) (1.77) (.) (.6) (.) G Max 19 (0.) (1.) (1.) (1.6) (.06) (.) (.) (.6) (.) (.) () 0 (.) 1 (.6) (.17) L L1 A B B1 E F H (1.) 0 (1.7) 0 (1.97) (.6) (.1) (.1) 0 (6.69) 0 (6.69) 10 (.7) 10 (.7) (1.) 0 (1.7) 0 (1.97) (.6) (.1) (.1) (.1) (.1) (.1) 10 (.7) 10 (.7) 6 (.) 7 (.7) 6 (.9) 1 (.0) 0 (6.69) (6.9) 1 (7.) 0 (9.) 0 (9.) (11.) 1 (.0) (1.9) (1.) (1.) (1.77) (.) (.76) (.) 0 (.7) 0 (.7) (.1) (.91) 0 (6.69) 1 (7.) (7.7) 0 (.66) (1.) (1.77) (.) (.76) (.) 0 (.7) 100 (.9) 1 (.1) (.1) 0 (6.69) 1 (7.) (7.7) 0 (.66) 7 (.) (.) 10 (.0) (.) 19 (7.6) (9.96) 19 (7.) 19 (7.) (11.1) (10.00) 1 (.6) 1 (.0) (.7) 6 (.77 (0.1) 9 (0.) 11 (0.) 11 (0.) 1 (0.) (0.9) (0.67) (0.7) (1.1) 7 (1.06) 7 (1.06) (1.) 6 (1.) 1 (.01) (0.9) 7 (1.06) (1.1) (1.) (1.) (1.77) (1.) (.0) (.6) (.6) (.6) 1 (.19) 100 (.9) (.) (0.0) (0.0) (0.0) (0.0) (0.0) (0.) (0.) (0.) (0.) (0.) (0.) (0.0) (0.0) 6 (0.) Brake Drum X Y Z X Brake Disc Y1 Z Rubber Element Type A A B B S N D P P R T I Nr. Weight BM Kg (lbs) 0. (1.76) 1. (.6). (.07). (9.) 10.1 (.6) (.) (7.) 19 (1.9) (7.9) (.) (1.) (6.) 10 (.1) 1 (77) INPUT PD (kgm ) OUTPUT PD (kgm ) Metric max bore with a keyway ISO 77 DIN 6/1 Inch max bore with a keyway USAS B.1 square H tolerance: +1 /0. (+0.0/0.0 inch) PD (1Kgm ) = Wk (7. lbsft ) Dimensions are subject to alteration without notice Flexible couplings 7 7

9 0GB :0 Pagina BMS TAB. 9 0 Dimensions () D Min L G Max (1.71) 0 (1.97) (.) (.) () (.7) Min (1.) (1.) 0 (1.7) L1 A A1 B B1 E H K M M1 N Max (1.) (1.71) (.) (.6) () (.) (.1) (.1) 1 (.0) (.91) (6.9) 1 (7.) (7.7) 0 (9.) 0 (.7) 1 (.71) 1 (6.10) 0 (6.69) (7.7) 6 (.) (.76) (.1) 100 (.9) 1 (.) (.) (.) 100 (.9) (.9) (.) 1 (1.0) 61 (1.1) 61 (1.1) 01 (1.79) 1 (.7) (.) (0.67) (0.67) 0 (0.79) (0.91) (1.10) (1.10) (0.) (0.) (0.) (0.) (0.) (0.0) 6 (.) 9 (.) (.6) (1.) (1.10) (1.10) 7 (.07) 107 (.1) 107 (.1) 107 (.1) 107 (.1) (.9) (.1) (.1) (.1) 1 (7.09) (7.7) (7.7) Rubber Element Type Nr. S S N E P Weight INPUT OUTPUT PD PD Kg (lbs) (kgm) (kgm) () (.) 7. (.6) (.) 1 (.) 6 (.) Metric max bore with a keyway ISO 77 DIN 6/1 Inch max bore with a keyway USAS B.1 square H tolerance: +1/0. (+0.0/0.0 inch) PD (1Kgm) = Wk (7. lbsft) Dimensions are subject to alteration without notice Flexible couplings 7

10 SHAFT MISALIGNMENT Flexible couplings BM series can withstand radial, axial, angular misalignment values according to Tab. 10; such values are just approximate values because the coupling compensation capability depends on applied load and rotational speed values. It is recoended anyway to perform the best possible alignment during installation. H1 Y H TAB. 10 Max shaft misalignment (up to 10 rpm) Y H1H (0.00) (0.00) (0.00) (0.0) (0.01) (0.0) (0.01) (0.01) (0.01) (0.00) (0.01) (0.0) (0.01) (0.00) (0.0) (0.01) (0.09) (0.0) (0.01) (0.09) (0.067) (0.0) (0.06) (0.0) (0.0) (0.0) (0.09) (0.0) (0.9) (0.0) (0.071) (0.09) (0.0) (0.0) For operating rotational speed higher than 10 rpm, it is recoended to reduce by 0% the max allowable misalignment. Maximum rotational speed cannot exceed the allowable values indicated at Tab. 1 pag.. MAINTENANE Replace rubber elements when total thickness is lower than % of its nominal dimension (see dimension data on Tab. 1). ATTENTION: the rubber elements must never get in contact with paint thinner, petrol or other chemicals. BALANING All couplings are balanced according to ISO G as a standard which is suitable for normal speed range. Higher balancing quality according to G6. is available upon. SAFETY The couplings must be installed complete with proper protection guards in order to provide complete safety for personnel during operation. The installer and the end user are responsible to assure adequate protection of the rotating parts and to comply to the required standards of the ountry where the equipment is installed. Flexible couplings 7 9

11 0GB :0 Pagina 10 INSTALLATION AND MAINTENANE BM BM (BMB / BMBP) (BMB / BMBP) a a BMS a TAB. 11 Pos. Name 1 Material Pos. MALE HUB FEMALE HUB RUBBER ELEMENT ast Iron ENGJL0 ast Iron ENGJL0 Nodular Iron ENGJS or Steel Fe 10 Special mix Sh(A) ± [0 (0 F); +0 (+ F)] MALE ast Iron ENGJL0 FLANGE ast Iron ENGJL0 or Steel Fe 10 SPAER ast Iron ENGJL0 SET SREW (metric) Steel a Name Material SREW (metric) LOK WASHER SREW (metric) LOK WASHER BRAKE DRUM BRAKE DIS SREW (metric) LOK WASHER DOWEL PIN Steel.9 Steel SS Steel.9 Steel SS ast iron ENGJL0 or Steel Fe 10 ast iron ENGJL0 or Steel Fe 10 Steel. Steel SS Steel 7 (elastic) or Steel hardened HR ± (parallel) special nodular Iron ENGJS0 LT for low temperature 0 (0 F) special rubber Sh(A) or Sh(A) TAB. Screw tightening torque Pos SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm SREW Nm 9 M M a M10 M 1 M1 M10 M 1 M1 M 10 M 10 M10 M10 M10 M6 1 M M10 M 1 For maxe bore set screw should be placed at from keyway for type and dimensions see table TF76 1 Tightening torque according to screw size and class, please refer to table N 11 For dowel pin dimensions contact Transfluid a c Dimensions () b TAB. 1 Rubber element dimensions Type A B D E I N P R S T a (0.6) (0.) (0.9) (0.6) (0.77) (1.7) (0.79) (0.7) (0.7) (0.6) (0.91) b , 9 (0.9) (0.1) (0.669) (0.66) (1.11) (.677) (1.1) (1.) (1.) (0.76) (1.99) c (0.71) (0.719) (0.9) (1.) (1.96) (.) (1.) (1.99) (.0) (1.11) (.91) Dimensions are subject to alteration without notice Flexible couplings 7 10

0GB copertina 7 07011 9:1 Pagina 1 OTHER TRANSFLUID PRODUTS FLUID OUPLING K SERIES FLUID

BRAKE TFDSNBG series PNEUMATI LUTH TPO series up to 100 Nm up to 10 Nm FRANE RUSSIAN

610 Fax: +..079 tffrance@transfluid.it TRANSFLUID OOO Moscow Tel.: +7.96.

it TRANSFLUID BEIJING TRADE O. LTD Beijing Tel.: 006. Fax: 006. tbtcinfo@sina.

12 0GB copertina :1 Pagina 1 OTHER TRANSFLUID PRODUTS FLUID OUPLING K SERIES FLUID OUPLING KX SERIES onstant filling up to kw onstant filling up to 1000 kw DIS AND DRUM BRAKE TFDSNBG series PNEUMATI LUTH TPO series up to 100 Nm up to 10 Nm FRANE RUSSIAN FEDERATION U.S.A. & ANADA & MEXIO HINA TRANSFLUID FRANE s.a.r.l. 00 Voiron Tel.: Fax: tffrance@transfluid.it TRANSFLUID OOO Moscow Tel.: tfrussia@transfluid.it TRANSFLUID LL Auburn, GA011 Tel.: Fax: tfusa@transfluid.it TRANSFLUID BEIJING TRADE O. LTD Beijing Tel.: 006. Fax: 006. tbtcinfo@sina.com TRANSFLUID s.r.l. Via Guido Rossa, 101 Gallarate (VA) Italy Tel Fax info@transfluid.it 7 0GB

SIZING AND SELECTION. According to DIN 740 part 2 SIZING

SIZING AND SELECTION. According to DIN 740 part 2 SIZING SIZING SIZING AND SELECTION According to DIN 740 part 2 RW-AMERICA.COM 7 SIZING AND SELECTION SAFETY COUPLINGS ST SYMBOLS T AR = Disengagement torque of the coupling (Nm) K = Service factor T max = Maximum