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Mounting the coupling 

 

32 

 

Torques for tightening bolted connections 

  A cordless screwdriver may be used to screw  the bolts in hand-tight. The 

required torque must only be applied by hand  using a torque wrench. 

  

To ensure  reliable torque transmission, all bolts must be tightened to the required 
torque during assembly. For tightening, use a calibrated torque wrench  which  is 
suitable for the required torque. 

  

  The following torques apply as standard unless  otherwise specified in the 

relevant design drawing. 

  

The following values apply to slotted headless bolts with metric  thread and head 
contact in accordance  with (ISO  4762, ISO 4014, DIN 6912) and a total friction factor 
μ=0.14. 

  

 

Bolt size 

Torque [Nm] 

Strength grade 

8.8 

10.9 

M6 

10 

14 

M8 

25 

35 

M10 

49 

69 

M12 

86 

120 

M14 

135 

190 

M16 

210 

295 

M18 

290 

405 

M20 

410 

580 

M22 

550 

780 

M24 

710 

1,000 

M27 

1,056 

1,500 

M30 

1,450 

2,000 

  

Содержание MMS-T W Series

Страница 1: ...MULTI MONT SELLA Torsionally flexible claw coupling MMS T W with taper bush Sizes 25 to 1000 English version of the original German operating instructions 06 2016 en 15500002060002...

Страница 2: ......

Страница 3: ...ntanglement 12 Avoiding risks of burns from hot surfaces 12 Avoiding risks of poisoning 12 Structural features of warning notices 13 Structural features of notices referring to property damage 13 Warn...

Страница 4: ...ing the coupling 35 Guide values for the shaft displacement 35 Alignment tolerances 36 Mounting the protection device 37 Putting the coupling into operation 38 Operation 39 Eliminating malfunctions 40...

Страница 5: ...addressed to the owner and to all persons who perform the following activities with and on the coupling Transportation Storage Assembly Putting into operation Operating Servicing Maintenance work Dec...

Страница 6: ...documents are deemed integral parts of these operating instructions Retain these documents together with these operating instructions Add these documents each time you sell this type of coupling or ma...

Страница 7: ...nd protection devices Failure to observe the notes in the operating instructions regarding transportation storage assembly commissioning operation maintenance cleaning and disassembly of the coupling...

Страница 8: ...aintenance intervals Any other use or any use beyond the limits of proper use is deemed improper use and can lead to property damage or personal injury The following types of use in particular are dee...

Страница 9: ...reas Use of the personal protective equipment Safe working practices Applicable accident prevention regulations Hazards arising from the coupling whilst in operation Behaviour in an emergency First ai...

Страница 10: ...ing to the specified torque Maintenance and cleaning work on couplings Prohibition of unauthorised conversions Conversions or modifications are permissible only with the manufacturer s approval Exclus...

Страница 11: ...arise when using the coupling Dangers to persons or impairment of the coupling and other property can especially occur if the coupling is improperly transported mounted commissioned and maintained by...

Страница 12: ...ing machine prior to all work on the coupling Secure the driving machine to prevent reactivation Exclusively operate the coupling with a mounted and functional protection device Affix a label warning...

Страница 13: ...TION Notices containing the word CAUTION warn of a situation which can cause slight or moderate injuries The following specific danger symbols can also be used in the warning notices in lieu of the ge...

Страница 14: ...abels which are affixed at the place of use of the coupling Make sure that none of the warning and instruction signs installed at the coupling s operating location are covered over and that they are a...

Страница 15: ...the driven machine They reduce torsional vibrations and shock loads and are able to compensate for misalignments The coupling consists of two coupling halves and the flexible elements Joining the coup...

Страница 16: ...d via flexible elements 4 which are guided and held in place by a retaining cap 2 The flexible elements 4 can be mounted and removed after loosening the bolts 1 and sliding back the retaining cap 2 Th...

Страница 17: ...e elements Taper bush The taper bush is a connection element with a conical basic form and a longitudinal slot It acts as a form fitting shaft hub connection to connect the coupling hub with the shaft...

Страница 18: ...parting line B enables the toothed ring to be replaced without moving the coupling halves From size MMS 100 on six saddle elements 1 are used where two rubber buffers 2 each are connected via one ext...

Страница 19: ...r Identifier Natural synthetic caoutchouc in standard design 40 C to 80 C black SN Synthetic caoutchouc NBR 40 C to 100 C black SP Silicone caoutchouc VMQ 70 C to 120 C blue SX Polyurethane PUR 30 C t...

Страница 20: ...y note Inform the manufacturer in the event of discrepancies Check the scope of supply for any damage Use only the rubber quality which is designated for the specific intended use Check the label for...

Страница 21: ...ight as of which support is required depends on your physical capabilities and the local regulations and conditions In order to transport the coupling or a component thereof above a weight of 25 kg pr...

Страница 22: ...Transporting the coupling 22 Transporting the coupling hub with flexible elements and retaining cap in the pre assembled condition Transportation of coupling hub...

Страница 23: ...Transporting the coupling 23 Transportation of taper bush...

Страница 24: ...proportion of UV rays e g the sun fluorescent tubes Protection against draughts Protection against ozone caused by e g electric motors mercury vapour lamps Avoid component stresses e g due to flexible...

Страница 25: ...ssembly Obtain the work clearance permit from the responsible person prior to all work on and with the coupling Switch the drive unit off Secure the drive unit to prevent reactivation Post up a cautio...

Страница 26: ...assembled are in flawless condition Basic notes regarding the condition of delivery The coupling can be delivered in any of the following conditions Pre assembled but not tightened to the required tor...

Страница 27: ...example an adhesive the required torque must be adapted under circumstances Observe the specifications of the screw locking compound manufacturer for any changed tightening torques Tighten the bolts c...

Страница 28: ...nections without tightening according to DIN 6885 1 1968 08 They must not be exceeded under any circumstances Check the finished bores using suitable measuring equipment Machine the keyways as require...

Страница 29: ...r bush A into the bore B on the coupling hub Schematic diagram Bring the connecting bores to the cover Half a threaded bore must lie opposite a smooth bore B in each case Depending on the design two o...

Страница 30: ...Using a spacer lightly tap the end face of the taper bush with a hammer Tighten the bolts once more with the corresponding torque Disassemble hub with taper bush In order to disassemble the hub compl...

Страница 31: ...oceed as follows Make sure that the connecting surfaces are free of preservative and grease Assemble the taper bush 5 into the hub of the pre assembled coupling half as described from page 28 onwards...

Страница 32: ...use a calibrated torque wrench which is suitable for the required torque The following torques apply as standard unless otherwise specified in the relevant design drawing The following values apply to...

Страница 33: ...the coupling halves CAUTION Increased rate of wear due to abrasion as a result of too large a distance between the coupling halves Make sure that the gap dimension between the two coupling halves is...

Страница 34: ...is observed see page 36 If necessary correct the distance by moving the units Securely fasten the driven machine and the drive unit in this position Make sure that all saddle elements are available an...

Страница 35: ...l and axial displacements must not occur all at the same time Guide values for the shaft displacement The maximum permissible displacement values listed in the table below are guide values as the comp...

Страница 36: ...in reasonable limits and in view of the fact that the compensating capability of the coupling largely depends on the rotational speed and the load Precise alignment of the coupling halves has a positi...

Страница 37: ...g must be operated exclusively with the protection device mounted The protection device must satisfy the following minimum requirements and ensure Protection against contact with rotating parts Protec...

Страница 38: ...ner Perform the following work prior to commissioning Make sure that all bolted connections are tightened to the required torque Check the alignment of the coupling Correct the alignment if necessary...

Страница 39: ...ipped with a protection device which is capable of withstanding rupturing of the coupling During operation regularly check the coupling for changed running noises and suddenly occurring vibrations If...

Страница 40: ...perating behaviour are always indications of the presence of a malfunction Make sure that the cause of the malfunction is located and immediately eliminated by qualified specialist personnel Table of...

Страница 41: ...malfunctions Proceed as follows when eliminating malfunctions Shut off the drive units Secure the drive units to prevent unintentional reactivation Secure the work area using a suitable cordon facilit...

Страница 42: ...the coupling at the intervals defined for the specific operation The inspection must be performed by qualified specialist personnel and documented thereafter Visually inspect the coupling on a regular...

Страница 43: ...hese include e g machine fitters CAUTION Damage to the drive shafts due to blows when replacing the saddle elements or the toothed ring Support the shaft in a suitable manner before replacing the sadd...

Страница 44: ...t its belt points to the hub body on the opposite side It may be necessary to place the saddle element on top at an angle Firmly press the saddle element 4 onto the coupling claw Where necessary use s...

Страница 45: ...able container for subsequent disposal Proceed as follows to mount the new toothed ring 4 Place a rubber buffer on top of a coupling claw so that its belt points to the hub body on the opposite side I...

Страница 46: ...the tools and aids required for the maintenance work Proceed as follows to commission the coupling Start the drive unit as specified by the owner Check the coupling for low noise and vibration free r...

Страница 47: ...nts The flexible elements can be damaged when using unsuitable cleaners As a result the surface can become so hot that a risk of explosion can occur Make sure that the saddle elements do not come into...

Страница 48: ...the drive unit off Secure the drive unit to prevent reactivation Post up a caution sign indicating that work is in progress Wear the personal protective equipment specified by the owner Pull the driv...

Страница 49: ...ied specialist disposal company Observe and comply with the country specific regulations applicable to the place of use If in doubt contact your municipal or local administration Sort the coupling com...

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