B3M-BM-BMS FLEXIBLE COUPLINGS
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FLEXIBLE COUPLINGS

GENERAL DESCRIPTION With decades of experience and thousands of applications on TRANSFLUID fluid couplings the BT flexible coupling line has been expanded to include couplings for shaft-to-shaft application. The new series has been studied to provide an exceptionally robust coupling with excellent misalignment capabilities and easy installation and assembly. The B3M/BM/BMS couplings high quality flexible elements provide reliable performance while protecting the coupled machines. Manufactured with the highest quality materials in TRANSFLUID’s factory in Gallarate Italy the new B3M/BM/BMS...

GENERAL DESCRIPTION Shaft couplings Standard version for connecting two shafts. The B3M allows changing of flexible elements with no need for axial movement of either of the couplings hubs. Brake drum couplings With brake drum. See Catalogue 355 for TRANSFLUID BRAKES. Brake disc couplings With brake disc. See Catalogue 355 for TRANSFLUID BRAKES. Spacer couplings B3M with removable spacer. Combination For connection with a TRANSFLUID fluid coupling. KRD + B3M ATEX VERSIONS It is possible to get BM series couplings, with finished bores, certified as equipment for intended use in hazardous...

Tab. 2-2A 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 4

COUPLING SIZE SELECTION T Kmax >= T max x St 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. 1) Using the power...

Agitators Pure liquids 1.00 Car pullers - intermittent duty 1.50 Chemical industry Agitators 1.75 Conveyors - uniform loaded Belt 1.00 Conveyors - Not uniformly loaded Belt 1.25 Cranes and hoists Main hoists 2.00 Dredges Bucket conveyors 1.50 Induced draft w/o damper control 2.00 Food industry Beet slicer 1.75 Bottling, can filling machine 1.00 Generators, transformers Frequency transformers 2.00 Laundries Washing machines 2.00 Lumber industry Barkers - drum type 2.00 Machine tools Bending roll 2.00 Punch press - gear driven 2.00 Other machine tools: Main drives 1.50 Metal rolling mills...

B3MB (with brake drum) (T^- B3MBP (with brake disk) Tab. 7 E» Dimensions • Metric max bore with a keyway ISO 773 - DIN 6885/1 (Inch max bore with a keyway USAS B17.1 square) •• H tolerance: +1/-0.5 mm (+0.04/-0.02 inch) ••• PD2 (1kgm2) = Wk2 (7.233 lbs-ft2) Dimensions are subject to alteration without notice

BMB (with brake drum) BMBP (with brake disk) • Metric max bore with a keyway ISO 773 - DIN 6885/1 (Inch max bore with a keyway USAS B17.1 square) •• H tolerance: +1 /-0.5 mm (+0.04/-0.02 inch) ••• PD2 (1kgm2) = Wk2 (7.233 lbs-ft2) Dimensions are subject to alteration without notice Flexible couplings -

• Metric max bore with a keyway ISO 773 - DIN 6885/1 (Inch max bore with a keyway USAS B17.1 square) •• H tolerance: +1 /-0.5 mm (+0.04/-0.02 inch) ••• PD2 (1kgm2) = Wk2 (7.233 lbs-ft2) Dimensions are subject to alteration without notice

Flexible couplings BM series can withstand radial, axial, angular misalignment values according to Tab. 10; such values are just approximate because the coupling compensation capability depends on applied load and rotational speed values. It is recommended anyway to perform the best possible alignment during installation. *H nominal tolerance: + 1 /-0.5 mm (+0.04 / -0.02 inch) For operating rotational speed higher than 1800 rpm, it is recommended to reduce by 50% the max allowable misalignment. Maximum rotational speed cannot exceed the allowable values indicated on Tab. 1 pag. 3. BALANCING...

If industrial & marine BM B3M BMS (BMB/BMBP) (B3MB/B3MBP) • On request special nodular Iron EN-GJS-350-22 LT for low temperature -40°C (-40°F) •• On request special rubber 60°Sh(A) or 80°Sh(A) Tab. 12 - Screw tightening torque Size For max bore set screw should be placed at 90° from keyway - for type and dimensions see table TF5726 Tightening torque according to screw size and class, please refer to table N 1152 For dowel pin dimensions contact TRANSFLUID Tab. 13 - Rubber element type and quantity 01 Tab. 14 - Rubber element dimensions X>!>Type

Constant filling Constant filling DISC AND DRUM BRAKE TFDS-NBG series up to 19000 NmPNEUMATIC CLUTCH TP series up to 11500 Nm CHINA TRANSFLUID BEIJING TRADE CO. LTD Beijing Ph.: +86.10.60442301-2 Fax: +86.10.60442305 tbtcinfo@transfluid.cn FRANCE TRANSFLUID FRANCE s.a.r.l. 38110 Rochetoirin Ph.: +33.9.75635310 Fax: +33.4.26007959 tffrance@transfluid.eu THE NETHERLANDS - GERMANY TRANSFLUID NORTH EUROPE B.V. (Bellmarine) NL-3992 AK, Houten Ph. +31 (0)85 4868530 tfnortheurope@transfluid.eu RUSSIA TRANSFLUID OOO Moscow Ph. +7.495.7782042 Mob.: +7.926.8167357 tfrussia@transfluid.eu U.S.A...