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KTR Kupplungstechnik 

GmbH 

D-48407 Rheine 

RIGIFLEX

®

-N 

Operating/Assembly instructions 

KTR-N 
Sheet: 
Edition:

 

47410 EN 
3 of 19 
9 

 

Please observe protection 

note ISO 16016. 

Drawn: 14.01.14 

Kb/Sta  Replaced for: 

KTR-N dated 28.05.13 

Verified: 

16.01.14 Kb 

Replaced by: 

 

 

1 Technical data 

 

 

Size 35 

Size 50 - 408 

Illustration 1: RIGIFLEX

®

-N, type A

 

 
 

Table 1: Type A 

RIGIFLEX

®

-N 

Size 

Max. 

finish 

bore 

[mm] 

d

1

, d

2

 

Dimensions [mm] 

General Setscrew 

D D

A

 

d

3

 

l

1

, l

2

 

l

3

 

l

4

 

E

1

 

E

1) 

G t

1

 

t

2

 

35 

50 - 

75 

70 

38.5

8.5 

1.5 

6 

100 

140 

- 

- 

- 

M6 

15 

- 

50 

50  70 95 55 50 12 1.0  9 100 

140 -  -  -  M6 10  - 

65 

65 

100 126  75  62  12  2.0  10  100 140 180  - 

-  M8  20 

- 

75 

75 

105 138  85  62  12  2.5  10  100 140 180  - 

-  M8  20 

- 

85 

85 

120 156  95  72  15  2.5  12  -  140 180 200 250 M10  20 

- 

110 

110  152 191 120  87  18  3.0  12  -  140 180 200 250 M10  25 

- 

120 

120  165 213 130 102  20  3.0  12  - 

-  180 200 250 M12  25 

- 

140 

140  200 265 160 126  25  4.0  15  - 

- 

-  200 250 M12  30 

- 

160 

160  230 305 170 145  31  5.0  15  - 

- 

- 

-  250 M12  30 

- 

166 

160  230 305 184 155  31  2.0  17 

According to customer spe-

cification 

M16 30  70 

196 

190  260 330 200 185  32  2.5  24 

M16  40  90 

216 

210  285 370 220 205  32  2.5  26 

M20  50  110 

256 

250  350 440 265 245  38  2.5  31 

M20  70  130 

306 

300  400 515 310 295  43  3.0  36 

M24  70  130 

346 

340  460 590 370 335  55  3.0  45 

M24  95  175 

406 

400  530 675 420 395 58.5

3.0  50 

M24  95  175 

168 

160  230 305 184 155  31  2.0  17 

M16  30  70 

198 

190  260 330 200 185  32  2.5  24 

M16  40  90 

218 

210  285 370 220 205  32  2.5  26 

M20  50  110 

258 

250  350 440 265 245  38  2.5  31 

M20  70  130 

308 

300  400 515 310 295  43  3.0  36 

M24  70  130 

348 

340  460 590 370 335  55  3.0  45 

M24  95  175 

408 

400  530 675 420 395 58.5

3.0  50 

M24  95  175 

1.  Other shaft distance dimensions available on request 
2.  For figures Mxl see table 7 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Содержание RIGIFLEX-N

Страница 1: ... EN 1 of 19 9 Please observe protection note ISO 16016 Drawn 14 01 14 Kb Sta Replaced for KTR N dated 28 05 13 Verified 16 01 14 Kb Replaced by RIGIFLEX N Torsionally stiff steel lamina coupling type A according to directive 94 9 EC ATEX 95 for finish bored pilot bored and unbored couplings Size 35 Size 50 408 ...

Страница 2: ...gs 2 5 Intended use 3 Storage 4 Assembly 4 1 Components of the couplings 4 2 Advice for finish bore 4 3 Assembly of the coupling hubs 4 4 Assembly of the spacer 4 5 Displacements alignment of the couplings 4 6 Spares inventory customer service addresses 5 Enclosure A Advice and instructions regarding the use in hazardous locations 5 1 Selection of the coupling size 5 2 Intended use in hazardous lo...

Страница 3: ...80 200 250 M10 25 120 120 165 213 130 102 20 3 0 12 180 200 250 M12 25 140 140 200 265 160 126 25 4 0 15 200 250 M12 30 160 160 230 305 170 145 31 5 0 15 250 M12 30 166 160 230 305 184 155 31 2 0 17 According to customer spe cification M16 30 70 196 190 260 330 200 185 32 2 5 24 M16 40 90 216 210 285 370 220 205 32 2 5 26 M20 50 110 256 250 350 440 265 245 38 2 5 31 M20 70 130 306 300 400 515 310 ...

Страница 4: ...d 2 Advice 2 1 Coupling selection C A U T I O N For a long lasting and failure free operation of the coupling it must be selected according to the selection instructions for the particular application see RIGIFLEX N catalogue If the operating conditions performance speed modifications on engine and machine change the coupling selection must be reviewed again Please note that the technical data reg...

Страница 5: ...idental switch on e g by providing warning signs at the place of switch on or removing the fuse for current supply Do not touch the operation area of the coupling as long as it is in operation Please secure the coupling against accidental contact Please provide for the necessary protection devices and covers 2 5 Intended use You may only assemble operate and maintain the coupling if you have caref...

Страница 6: ...see table 4 Setscrews DIN EN ISO 4029 2 1 Spacer complete 3 see table 3 Cap screws Size 35 Size 50 408 Illustration 2 RIGIFLEX N type A Table 3 RIGIFLEX N size 35 50 65 75 85 110 120 140 160 Number of cap screws 1 24 16 24 24 36 36 36 36 36 RIGIFLEX N size 166 196 216 256 306 346 406 Number of cap screws 1 24 24 36 36 36 36 36 RIGIFLEX N size 168 198 218 258 308 348 408 Number of cap screws 1 32 3...

Страница 7: ...le with pilot bored or unbored hubs respectively It has to be drilled according to illustration 3 Size and depth of the centering are shown in table 1 Size 35 Size 50 408 Illustration 3 Concentricity and axial runout C A U T I O N The customer bears the sole responsibility for all machining processes performed subse quently on unbored or pilot bored as well as finish machined coupling components a...

Страница 8: ... this advice may cause damage to the coupling For the axial alignment of the coupling the distance dimension E see table 1 is decisive In order to adjust the right dimension E you should proceed as follows Shift the coupling hubs on the shaft of the driving and driven side The internal sides of the coupling hubs must be flush with the front sides of the shafts illustration 4 Align the power pack i...

Страница 9: ... have reached the full tightening torque see table 7 Table 6 RIGIFLEX N size 35 50 65 75 85 110 120 140 160 Value R mm 1 7 1 2 1 2 1 7 1 7 2 2 2 2 3 2 4 2 RIGIFLEX N size 166 168 196 198 216 218 256 258 306 308 346 348 406 408 Value R mm 2 2 2 7 2 7 2 7 3 2 3 2 3 2 Table 7 Tightening torques of the cap screws RIGIFLEX N size 35 50 65 75 85 110 120 140 160 Dimension Mxl mm M4x45 M6x22 M6x25 M8x30 M...

Страница 10: ... 8 If the figures are exceeded the coupling will be damaged The more accurate the alignment of the coupling the longer is its service life If used in hazardous locations for the explosion group IIC marking II 2GD c IIC T X only half of the displacement figures see table 8 are permissible Please note The displacement figures mentioned in table 8 are maximum figures which must not arise in parallel ...

Страница 11: ...1 05 1 54 1 78 2 39 120 0 7 2 6 1 00 1 49 1 73 2 35 140 0 7 3 3 1 55 2 16 160 0 7 3 8 1 99 166 0 7 3 7 Mounting dimension E as indicated by the customer 196 0 7 4 2 216 0 7 4 5 256 0 7 5 2 306 0 7 6 0 346 0 7 6 7 406 0 7 7 5 168 0 5 2 6 198 0 5 2 6 218 0 5 2 9 258 0 5 3 5 308 0 5 4 2 348 0 5 4 8 408 0 5 5 0 each lamina set 4 6 Spares inventory customer service addresses A basic requirement to ensu...

Страница 12: ...echanical and or chemical influences with the different operating conditions in a way that the explosion protection is not affected 1 Industry with the exception of mining Equipment group II of category 2 and 3 coupling is not approved for equipment group 1 Media class G gases fogs steams zone 1 and 2 coupling is not approved for zone 0 Media class D dusts zone 21 and 22 coupling is not approved f...

Страница 13: ...ficant or no wear on the lamina set upon this initial inspection further inspections can each be performed after 6000 operating hours or at the latest after 18 months provided that the operating parameters remain the same If you note significant wear during the initial inspection so that it would be recommendable to replace the lamina sets please find out the cause according to the table Breakdown...

Страница 14: ... have to be replaced by a new fully as sembled spacer immediately Illustration 11 RIGIFLEX N type A C A U T I O N In order to ensure a long service life of the coupling and avoid dangers with the use in haz ardous locations the shaft ends must be accurately aligned Please absolutely observe the displacement figures indicated see table 8 If the figures are exceeded the coupling will be damaged Faul...

Страница 15: ...ssary and also inspect all screw connections for the tightening torques specified each dependent on the type of coupling If used in hazardous locations the setscrews to fasten the coupling hubs as well as all screw con nections must be secured against working loose additionally e g conglutinating with Loctite aver age strength Finally the coupling protection against accidental contact must be fitt...

Страница 16: ...riming painting etc couplings are used in hazardous locations the requirements on conductibility and coating thickness must be considered In case of paintings up to 200 µm electro static load does not have to be expected Multiple coatings that are thicker than 200 µm are prohib ited for explosion group llC 5 8 Breakdowns causes and elimination The below mentioned failures can result in a use of th...

Страница 17: ... under the screw head and on the steel lamina set Danger of ignition due to hot surfaces 1 Set the unit out of operation 2 Inspect coupling components and re place coupling components that are damaged 3 Tighten the cap screws until the per missible tightening torque is reached 4 Inspect alignment adjust if necessary Screws for axial fastening of coupling hubs working loose none 1 Set the unit out ...

Страница 18: ...remainders of the spacer 3 Inspect coupling components and re place coupling components that are damaged 4 Insert spacer mount coupling compo nents 5 Instruct and train the service staff Cracks in fracture of the steel lamina set locking screws Vibrations of drive Ignition risk due to sparking 1 Set the unit out of operation 2 Disassemble the coupling and remove remainders of the spacer 3 Inspect ...

Страница 19: ...tions correspond to article 1 3 b of directive 94 9 EC and comply with the general safety and health requirements according to enclosure II of directive 94 9 EC The RIGIFLEX N steel lamina coupling is in accordance with the specifications of directive 94 9 EC One or several directives mentioned in the corresponding EC type examination certificate IBExU07ATEXB004 X were in part replaced by updated ...

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