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FLENDER N-BIPEX BNT Assembly And Operating Instructions Manual Download Page 28

Assembly

5.1 Preparatory work

28

Edition 09/2022

M3401-02en

Diameter and axial position of the threaded hole in the hub

The following diagram shows the axial position of the threaded hole.

H

G

Figure 5-2: 

Diameter and axial position of the threaded hole in the hub

The following table contains the values for the diameter and axial position of the threaded
hole depending on the coupling size.

Coupling part 1/2 (1 or 2) of types BWN and BNT

Coupling size

Tapped hole

d1

Clearance

e

mm

Tightening torque

T

A

Nm

Width across

flats

Hexagon socket

wrench

mm

19

M5

10

3

2.5

24

M5

10

3

2.5

28

M8

15

8

4

38

M8

15

8

4

42

M8

20

8

4

48

M8

20

8

4

55

M10

20

15

5

65

M10

20

15

5

75

M10

25

15

5

90

M12

30

25

6

Table 5-2: 

Tapped hole, tightening torque and width A/F

Apply the specified tightening torques as listed in Section Tightening procedure (Page 62).

Position of the threaded hole with respect to the parallel keyway

The threaded hole for the set screw is positioned on the parallel keyway.

Summary of Contents for N-BIPEX BNT

Page 1: ...BWN BWT BNT Assembly and operating instructions M3401 02en Edition 09 2022 N BIPEX ...

Page 2: ...Original assembly and operating instructions M3401 02 Edition 09 2022 Copyright 2022 Flender GmbH V5 20 10 2022 09 25 36 ...

Page 3: ...ion 21 4 Application planning 23 4 1 Transport of the coupling 23 4 2 Storage of the coupling 23 5 Assembly 25 5 1 Preparatory work 25 5 1 1 Milling the finished bore 26 5 1 2 Milling the parallel keyway 27 5 1 3 Machining an axial locking mechanism 27 5 1 4 Balancing the coupling 29 5 2 Assembling the coupling 30 5 2 1 Installing coupling part 1 2 1 or 2 30 5 2 2 Assembling coupling part 3 3 or 4...

Page 4: ... Replacing wearing parts 40 7 2 3 2 Correcting the changed alignment 40 8 Servicing 43 8 1 Maintenance intervals 43 8 2 Maximum permissible torsional backlash 44 8 3 Replacing wearing parts 44 8 4 Removing coupling part 1 2 1 or 2 45 8 5 Removing coupling part 3 3 or 4 4 45 9 Service and support 47 9 1 Contact 47 10 Disposal 49 11 Spare parts 51 11 1 Ordering spare parts 51 11 2 Spare parts drawin...

Page 5: ...on 09 2022 5 A 3 Tightening torques and widths A F 62 A 4 Tightening procedure 62 A 5 Cam rings 63 A 5 1 Use and storage of the cam rings 63 A 5 2 N BIPEX cam ring 50 63 B Declaration of Conformity 65 B 1 UK Declaration of Conformity 65 ...

Page 6: ...Table of contents 6 Edition 09 2022 M3401 02en ...

Page 7: ...eplacement parts list for BWT type 52 Table 11 3 Spare parts list for type BNT 53 Table A 1 Speed geometry data and weights for BWN type 55 Table A 2 Speed geometry data and weights for BWT type 57 Table A 3 Speed geometry data and weights for BNT type 58 Table A 4 Flat groove in TAPER clamping bushes 59 Table A 5 Correction factor 60 Table A 6 Maximum permissible shaft misalignment values during ...

Page 8: ...List of tables 8 Edition 09 2022 M3401 02en ...

Page 9: ...3 Position of the balancing bore for single plane balancing 29 Figure 5 4 Position of the balancing bore for two plane balancing 30 Figure 5 5 Possible misalignment 33 Figure 8 1 Markings for calculating the torsional backlash 44 Figure 11 1 Replacement parts drawing for BWN type 52 Figure 11 2 Replacement parts drawing for BWT type 52 Figure 11 3 Spare parts drawing for type BNT 53 Figure A 1 BWN...

Page 10: ...List of figures 10 Edition 09 2022 M3401 02en ...

Page 11: ...cal injury will occur if the relevant precautionary meas ures are not taken WARNING means that death or severe physical injury may occur if the relevant precautionary meas ures are not taken CAUTION means that mild physical injury may occur if the relevant precautionary measures are not taken NOTICE means that damage to property may occur if the relevant precautionary measures are not taken If mul...

Page 12: ...d documentation must be followed Trademarks All designations marked with the trademark symbol are registered trademarks of Flender GmbH Other designations in this document may be trademarks whose use by third parties for their own purposes may violate the rights of the owner Liability disclaimer We have assessed the contents of these instructions for compliance with the hardware and software descr...

Page 13: ...ash is used for lists at the second level 1 Numbers in brackets are part numbers 1 4 Copyright1 4 Copyright The copyright for these instructions is held by Flender These instructions must not be used wholly or in parts without our authorisation or be given to third parties If you have any technical queries please contact our factory or one of our service outlets refer to Service and support Page 4...

Page 14: ...Introduction 1 4 Copyright 14 Edition 09 2022 M3401 02en ...

Page 15: ... damage or personal injury Flender does not accept any liability for damage or operating fail ures that are due to non adherence to these instructions State of the art The coupling described here has been designed in consideration of the latest findings for de manding technical requirements This coupling is state of the art at the time of printing these instructions In the interest of further deve...

Page 16: ...he relevant occupational safety and environmental protection regulations must be complied with at all times during transport assembly installation dismantling operation and mainten ance of the coupling Only qualified personnel may operate assemble maintain and repair the coupling Informa tion about qualified personnel can be found in the legal notes at the beginning of these in structions If hoist...

Page 17: ... for damage occurring as a result of the use of non approved replacement parts The same applies to any accessories that were not supplied by Flender If you have any queries please contact our customer service organisation see Service and support Page 47 2 3 Safety instructions for a coupling for use in potentially explosive atmospheres2 3 Safety instructions for a coupling for use in potentially e...

Page 18: ... tables applies to the temperature in the direct vicinity of the coupling and the temperature of adjacent components 1 Gases vapours or mists Check the ambient temperature for use of the coupling in the relevant temperature class Max ambient temperature Temperature class 100 C T4 70 C T5 55 C T6 Table 2 2 Temperature classes TX for explosive atmospheres as a result of gases vapours or mists 2 Dust...

Page 19: ...upling The coupling may burst if it is not used properly There is a risk of fatal injury from flying fragments If a coupling bursts in an area at risk of explosion then this can result in an ex plosion Use the coupling for the purpose for which it is intended DANGER Risk of explosion when using coupling parts without Ex marking Coupling parts without Ex marking have not been approved for use in po...

Page 20: ...es safety goggles Ensure that the area is not at risk of explosion WARNING Risk of chemical burns due to chemical substances There is a risk of chemical burns when handling aggressive cleaning agents Please observe the manufacturer s information on how to handle cleaning agents and solvents Wear suitable protective equipment gloves safety goggles CAUTION Physical injury Risk of injury due to falli...

Page 21: ...ylindrical or conical bore with parallel key or with TAPER clamping bush with parallel key Please consult Flender if you want to use a different type of installation Application N BIPEX couplings are suitable for drives with a uniform torque load and low misalignment Structure A N BIPEX coupling consists of two hub parts that are connected to one another by a cam ring made of an elastomer material...

Page 22: ...09 2022 M3401 02en Figure 3 2 BWT type 3 4 Coupling part 3 or 4 50 Cam ring 101 TAPER clamping bush 102 TAPER clamping bush Figure 3 3 BNT type 1 Coupling part 1 2 3 4 Coupling part 3 or 4 50 Cam ring 102 TAPER clamping bush ...

Page 23: ...d bearing capacity for transport Please observe the symbols applied on the packaging If not specifically contractually agreed otherwise the packaging complies with the HPE Pack aging Directive 7KLV ZD XS UDJLOH HHS GU HHS GU HQWUH RI JUDYLW R QRW XVH KDQG KRRN WWDFK KHUH Figure 4 1 Transport symbols 4 2 Storage of the coupling4 2 Storage of the coupling NOTICE Property damage due to improper stora...

Page 24: ...efully observe the specifications for long term storage 1 You can find the required type of preservative agent in the following table types of pre servative agents for long term storage 2 Remove the elastomer components These must not come into contact with cleaning agents and long term preservative agents 3 Clean the coupling parts 4 Apply the stipulated preservative agent 5 Store the coupling pa...

Page 25: ...mbly sequence Please ensure that there is sufficient space at the assembly location and that the loca tion is tidy and clean in order to be able to assemble and maintain the coupling without any risk If a dimension drawing has been created for the coupling please observe the informa tion it contains as a matter of priority 5 1 Preparatory work5 1 Preparatory work Please consult Flender if you want...

Page 26: ...M7 Table 5 1 Recommended assigned fits for bores with parallel key connection Bore diameter WARNING Danger due to bursting of the coupling If you exceed the maximum diameter of the finished bore then this can cause the coupling to burst in operation There is a risk of fatal injury from flying fragments If a coupling bursts in an area at risk of explosion then this can result in an explosion Adhere...

Page 27: ...ISO JS9 If the coupling is intended for reversing operation mill the parallel keyway according to DIN 6885 1 ISO P9 If you want to mill a parallel keyway that does not correspond to DIN 6885 1 please con sult Flender 5 1 3 Machining an axial locking mechanism5 1 Preparatory work The coupling part 1 2 1 or 2 is secured by a set screw or an end plate to prevent axial movements Please consult Flender...

Page 28: ... size Coupling part 1 2 1 or 2 of types BWN and BNT Coupling size Tapped hole d1 Clearance e mm Tightening torque TA Nm Width across flats Hexagon socket wrench mm 19 M5 10 3 2 5 24 M5 10 3 2 5 28 M8 15 8 4 38 M8 15 8 4 42 M8 20 8 4 48 M8 20 8 4 55 M10 20 15 5 65 M10 20 15 5 75 M10 25 15 5 90 M12 30 25 6 Table 5 2 Tapped hole tightening torque and width A F Apply the specified tightening torques a...

Page 29: ...ing NOTICE Property damage to coupling part 1 2 1 or 2 If you completely drill through the base on coupling part 1 2 1 or 2 then coupling part 1 2 1 or 2 is no longer allowed to be used for operation Please observe the stipulations about machining the balancing bore Please note the following when balancing the coupling Select the balancing quality according to the application but at least G16 in a...

Page 30: ... of the coupling parts The assembly procedure depends on which coupling part you wish to assemble The coupling parts 1 2 1 and 2 with coupling types BWN and BNT are mounted on the shaft by means of a parallel key The coupling parts 3 3 and 4 4 with coupling types BWT and BNT are mounted on the shaft with TAPER clamping bushes with parallel key 5 2 1 Installing coupling part 1 2 1 or 2 5 2 Assembli...

Page 31: ...ge and heating to temperatures above 80 C 5 Secure the coupling parts 1 2 1 and 2 with a set screw or an end plate When securing with a set screw the shaft must not protrude or be set back from the inner side of the hub 6 Tighten up the set screw or the screw to attach the end plate to the specified tightening torque TA for the set screw please see section Machining an axial locking mechanism Page...

Page 32: ...the TAPER clamping bush 101 102 with a suitable grease to prevent the ingress of dirt 9 After a brief period of operation under load check the tightening torques TA again see section Tightening torques and widths A F Page 62 When liquid screw locking agent is used for use in potentially explosive atmospheres the tightening torques do not have to be checked 5 3 Aligning the coupling5 3 Aligning the...

Page 33: ...gular misalignment5 3 Aligning the coupling Determine the value ΔS2 ΔS2 S2max S2min The determined value ΔS2 may not exceed the value ΔS2perm You can find the values for ΔS2perm in section Shaft misalignment values during operation Page 59 If required you can calculate the angular misalignment ΔKw as follows ΔKw rad ΔS2 DA ΔKw deg ΔS2 DA 180 π If required you can calculate the permissible angular ...

Page 34: ...Assembly 5 3 Aligning the coupling 34 Edition 09 2022 M3401 02en You can find the permissible radial misalignment ΔKrperm in section Shaft misalignment val ues during operation Page 59 ...

Page 35: ...missioning of the coupling The coupling can burst and metal parts can be flung out There is a risk of fatal injury from flying fragments Bursting of the coupling can lead to an explosion in potentially explosive atmospheres Carry out the tests prior to commissioning Do not touch the rotating coupling 1 Check the tightening torques of the screws of the coupling in accordance with section Tightening...

Page 36: ...Commissioning 36 Edition 09 2022 M3401 02en ...

Page 37: ...e atmospheres Switch off the unit at once if any malfunctions occur Note during the maintenance work the possible causes of faults and the notes on recti fying them Proceed as described below if there is a malfunction of the coupling during operation 1 De energise the drive immediately 2 Initiate the required action for repair taking into consideration the applicable safety regu lations If you can...

Page 38: ...s given in section Correcting the changed alignment Page 40 Coupling not suitable for the operating conditions Check the possible causes given in section Unsuitable coupling Page 39 Use a coupling that is suitable for the operating conditions Incorrect assembly of the coupling Check the possible causes given in sections Assembly related causes Page 39 and Specific installation re lated and mainten...

Page 39: ...the coupling was chosen System torque too high and or torque dynamics not permissible System speed too high Application factor not selected correctly Chemically aggressive environment not taken into consideration Coupling not suitable for the ambient temperature Diameter and or assigned fit of the finished bore not permissible Width across corners of the parallel keyways greater than the width acr...

Page 40: ...ing torques not adhered to Alignment and or shaft misalignment values not set in accordance with the instructions 7 2 2 2 4 Specific installation related and maintenance related causes7 2 Faults causes and rectification Cam ring 50 not fitted Fitted cam ring 50 excessively heated up when applying heat to the coupling parts 7 2 3 Correcting faults7 2 Faults causes and rectification 7 2 3 1 Replacin...

Page 41: ...Operation 7 2 Faults causes and rectification M3401 02en Edition 09 2022 41 3 Check the locking elements that prevent axial movements and correct these as required 4 Realign the coupling ...

Page 42: ...Operation 7 2 Faults causes and rectification 42 Edition 09 2022 M3401 02en ...

Page 43: ...tially explosive atmospheres Note also the actual wear of the elastomer components WARNING Physical injury Injury from rotating parts Only carry out work on the coupling when it is not moving Secure the drive unit against being operated accidentally Attach a notice to the switch stating clearly that work is being carried out on the coup ling Before starting any work make sure that the unit is free...

Page 44: ...able 8 2 Maximum permissible torsional backlash 8 3 Replacing wearing parts8 3 Replacing wearing parts DANGER Danger due to bursting of the coupling If you do not observe the information stipulated here regarding replacement of wearing parts this can lead to bursting of the coupling during operation There is a risk of fatal in jury from flying fragments Bursting of the coupling can lead to an expl...

Page 45: ...6 Pull off the coupling part 1 2 1 or 2 Use suitable lifting gear when doing this 7 Check the hub bore and the shaft for damage and protect them against corrosion 8 Replace any damaged parts When reinstalling the coupling parts please observe the information in chapters Assembly Page 25 and Commissioning Page 35 8 5 Removing coupling part 3 3 or 4 4 8 5 Removing coupling part 3 3 or 4 4 Procedure ...

Page 46: ...Servicing 8 5 Removing coupling part 3 3 or 4 4 46 Edition 09 2022 M3401 02en ...

Page 47: ...ou have any technical queries contact our factory or one of our Customer Service addresses Flender GmbH Schlavenhorst 100 46395 Bocholt Germany Tel 49 0 2871 92 0 Fax 49 0 2871 92 2596 Flender GmbH http www flender com More information Further information about service and support can be found on the Internet Service Support https www flender com service ...

Page 48: ...Service and support 9 1 Contact 48 Edition 09 2022 M3401 02en ...

Page 49: ...M3401 02en Edition 09 2022 49 Disposal 10 Disposal of the coupling Dispose of the coupling parts according to applicable national regulations or recycle them ...

Page 50: ...Disposal 50 Edition 09 2022 M3401 02en ...

Page 51: ... 52 You can find our contact data for ordering replacement parts at Service and support Page 47 Information required when ordering replacement parts Flender order number with item Flender drawing number Coupling type and size Part number refer to Spare parts drawing and spare parts list Page 52 Dimensions of the replacement part for example Bore Bore tolerance Parallel keyway and balancing Special...

Page 52: ... Replacement parts drawing for BWN type Part number Designation 1 Coupling part 1 2 2 Coupling part 1 2 50 Cam ring Table 11 1 Spare parts list for type BWN 11 2 2 Type BWT11 2 Spare parts drawing and spare parts list Figure 11 2 Replacement parts drawing for BWT type Design A Design B Design AB Design A Design B Design AB Part num ber Designation Part num ber Designation Part num ber Designation ...

Page 53: ...ush 101 TAPER clamping bush 102 TAPER clamping bush 102 TAPER clamping bush 102 TAPER clamping bush Table 11 2 Replacement parts list for BWT type 11 2 3 Type BNT11 2 Spare parts drawing and spare parts list Figure 11 3 Spare parts drawing for type BNT Design A Design B Design A Design B Part num ber Designation Part num ber Designation 1 Coupling part 1 2 1 Coupling part 1 2 3 Coupling part 3 4 C...

Page 54: ...Spare parts 11 2 Spare parts drawing and spare parts list 54 Edition 09 2022 M3401 02en ...

Page 55: ...8 A 1 1 BWN typeSpeeds geometry data and weights 1 6 1 6 1 1 Figure A 1 BWN type 1 Coupling part 1 2 2 Coupling part 1 2 Size Speed nmax rpm D1 D2 max 1 mm DA mm ND1 ND2 mm NL1 NL2 mm D3 mm DE 2 mm S mm S2 Weight 3 m kg mm perm dev mm 19 19 500 25 42 38 25 17 46 16 31 1 0 3 24 14 500 35 57 50 30 25 62 18 37 1 5 0 6 28 12 500 40 67 58 35 28 73 20 41 1 1 38 10 000 48 82 68 45 36 89 24 45 1 5 1 7 42 ...

Page 56: ...0 82 138 115 75 64 150 35 65 2 5 7 5 75 5 000 96 160 135 85 76 177 40 104 2 5 13 8 90 4 000 120 205 170 100 95 220 45 85 3 21 4 Table A 1 Speed geometry data and weights for BWN type 1 Maximum bore for parallel keyway in accordance with DIN 6885 1 2 Required installation space 3 Weight applies to one coupling with maximum bore A 1 2 BWT typeSpeeds geometry data and weights 1 1 6 1 1 6 Figure A 2 B...

Page 57: ...00 14 42 2 107 80 39 48 116 28 50 2 0 1615 2 6 55 6 500 14 50 123 100 33 57 133 30 60 2 0 2012 3 5 65 6 000 14 50 138 100 33 64 150 35 65 2 5 2012 4 5 65 55 60 118 46 2517 3 5 5 75 5 000 16 60 160 118 46 76 177 40 75 2 5 2517 8 4 75 65 75 135 52 3020 3 8 2 90 4 000 25 75 205 142 52 95 220 45 85 3 0 3020 12 9 90 80 90 170 90 3535 3 19 8 Table A 2 Speed geometry data and weights for BWT type 1 Maxim...

Page 58: ...0 54 30 23 25 62 18 37 1 5 1008 0 6 28 12 500 40 10 28 2 67 58 58 35 23 28 73 20 41 1 0 1108 0 8 38 10 000 48 10 28 2 82 68 58 45 23 36 89 24 45 1 5 1108 1 4 42 8 500 55 14 42 2 97 80 86 50 26 43 105 26 48 1 5 1610 2 3 48 7 500 62 14 42 2 107 90 80 56 39 48 116 28 50 2 0 1615 3 2 55 6 500 75 14 50 123 105 100 65 33 57 133 30 60 2 0 2012 4 4 65 6 000 82 14 50 138 115 100 75 33 64 150 35 65 2 5 2012...

Page 59: ...ping bush only possible in coupling part 4 4 4 Required installation space 5 Weight applies to one coupling with maximum bore in coupling part 1 2 1 without TAPER clamping bush A 1 4 Flat groove in TAPER clamping bushes 101 102 Speeds geometry data and weights 7 Figure A 4 Flat groove in TAPER clamping bushes TAPER Clamping bush No Bore D mm Width B JS9 mm Hub groove depth D T2 mm 1008 24 8 D 2 10...

Page 60: ...ction factor Information Note the maximum speed for the relevant coupling size and coupling type Cam rings 50 with hardness 92 Shore A Size K1500 at n 1 500 rpm Krperm 1 mm Kaperm mm S2perm 1 mm 19 0 17 0 3 0 37 24 0 23 0 4 0 50 28 0 25 0 5 0 58 38 0 29 0 6 0 72 42 0 34 0 7 0 85 48 0 38 0 8 0 93 55 0 40 0 9 1 10 65 0 45 1 0 1 20 75 0 52 1 2 1 42 90 0 60 1 4 1 77 Table A 6 Maximum permissible shaft...

Page 61: ...ration for cam rings 50 with hardness 95 Shore A 1 At a speed of 1 500 rpm ΔS2perm corresponds to a permissible angular deviation of ΔKwperm 0 4 Cam rings 50 with hardness 64 Shore A Size K1500 at n 1 500 rpm Krperm 1 mm Kaperm mm S2perm 1 mm 19 0 14 0 24 0 22 24 0 18 0 32 0 30 28 0 20 0 40 0 35 38 0 23 0 48 0 43 42 0 27 0 56 0 51 48 0 30 0 64 0 56 55 0 32 0 72 0 64 65 0 36 0 80 0 72 75 0 42 0 96 ...

Page 62: ...ipulations in section Tightening procedure Page 62 A 4 Tightening procedureTightening procedure Tightening torques must be observed taking into account the following table Scatter of the torque ap plied at the tool Tightening procedure As a rule the tightening procedures listed are within the spe cified tool torque scatter 5 Hydraulic tightening with mechanical screwdriver Torque controlled tighte...

Page 63: ...o 5 years Protect against direct sunlight artificial light with a high UV content and extreme temper atures Avoid contact with aggressive media A 5 2 N BIPEX cam ring 50 Cam rings Material Hardness Comment Marking Ambient temperature TPU 92 Shore A standard soft red 50 C to 100 C TPU 95 Shore A medium shifting of the resonant speed green 50 C to 100 C TPU 64 Shore D hard blue 50 C to 100 C Table A...

Page 64: ...Technical data Cam rings 64 Edition 09 2022 M3401 02en ...

Page 65: ... refers to the product mentioned above The object of this declaration described above complies with the statutory requirements Regulations 2016 No 1107 Specification of designated standards or other technical specifications on which the Declaration of Conformity is based EN 1127 1 2019 EN 1127 2 2014 EN ISO 80079 36 2016 EN ISO 80079 37 2016 EN ISO IEC 80079 38 2016 Approved Body DEKRA Certificati...

Page 66: ...Declaration of Conformity UK Declaration of Conformity 66 Edition 09 2022 M3401 02en ...

Page 67: ......

Page 68: ...N BIPEX Assembly and operating instructions M3401 02en Edition 09 2022 Flender GmbH Alfred Flender Straße 77 46395 Bocholt Germany ...

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