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RADEX

®

-N 

Operating/Assembly instructions 

KTR-N 
Sheet: 
Edition: 

47110 EN 
7 of 31 
24 

 

Please observe protection 

note ISO 16016. 

Drawn: 

2019-07-23 Pz/Wb 

Replacing: 

KTR-N dated 2018-07-17 

Verified: 

2019-07-26 Pz 

Replaced by: 

 

 

 

Table 4: Dimensions setscrews 

 

Size 

20 

25 

35 

38 

42 

50 

60 

70 

80 

85 

90 

105 

115 

M5 

M5 

M6 

M6 

M8 

M8 

M8 

M10 

M10 

M10 

M12 

M12 

M12 

15 

15 

20 

20 

20 

20 

20 

25 

25 

30 

30 

Number z 

 

Size 

135 

136 

156 

166 

186 

206 

246 

286 

336 

138 

158 

168 

188 

208 

248 

288 

338 

M20 

M12 

M12 

M16 

M16 

M16 

M20 

M20 

M24 

M12 

M12 

M16 

M16 

M16 

M20 

M20 

M24 

As specified by the customer 

Number z 

 
 
 

Table 5: Torque and speed 

 

Size 

20 

25 

35 

38 

42 

50 

60 

70 

80 

85 

Torque [Nm] 

T

KN

 

30 

60 

120 

240 

320 

470 

900 

1300 

1800 

2600 

T

K max

 

60 

120 

240 

480 

640 

940 

1800 

2600 

3600 

5200 

T

KW

 

15 

30 

60 

120 

160 

235 

450 

650 

900 

1300 

Max. speed n [rpm] 

20400 

16800 

13900 

12000 

11000 

9000 

8200 

7300 

6300 

5900 

 

Size 

90 

105 

115 

135 

136 

156 

166 

186 

206 

246 

Torque [Nm] 

T

KN

 

4600 

5600 

9900 

13500 

17500 

25000 

35000 

42000 

52500 

90000 

T

K max

 

9200 

11200 

19800 

27000 

35000 

50000 

70000 

84000 

105000 

180000 

T

KW

 

2300 

2800 

4950 

6750 

8750 

12500 

17500 

21000 

26250 

45000 

Max. speed n [rpm] 

5400 

5000 

4300 

3700 

3800 

3500 

3300 

3000 

2800 

2300 

 

Size 

286 

336 

138 

158 

168 

188 

208 

248 

288 

338 

Torque [Nm] 

T

KN

 

150000 

210000 

23000 

33000 

45000 

56000 

70000 

120000 

200000 

280000 

T

K max

 

300000 

420000 

46000 

66000 

90000 

112000 

140000 

240000 

400000 

560000 

T

KW

 

75000 

105000 

11500 

16500 

22500 

28000 

35000 

60000 

100000 

140000 

Max. speed n [rpm] 

2000 

1800 

3800 

3500 

3300 

3000 

2800 

2300 

2000 

1800 

 
 

 

RADEX

®

-N couplings with attachments that can generate heat, sparks and static charging 

(e. g. combinations with brake drums, brake disks, overload systems such as torque 
limiters, fan impellers etc.) are not permitted for the use in potentially explosive 
atmospheres. 
A separate analysis must be performed. 

 
 
 
 
 

 

 
Please read through these operating/assembly instructions carefully before you start up the coupling. 
Please pay special attention to the safety instructions! 
 

 

The 

RADEX

®

-N

 coupling is suitable and approved for the use in hazardous locations. When using 

the coupling in potentially explosive atmospheres, observe the special advice and instructions 
regarding safety in enclosure A. 

 
The operating/assembly instructions are part of your product. Please store them carefully and close to the 
coupling. The copyright for these operating/assembly instructions remains with KTR. 
 
 

Technical data 

Advice 

2.1  General advice 

Summary of Contents for RADEX NANA 2

Page 1: ...te ISO 16016 Drawn 2019 07 23 Pz Wb Replacing KTR N dated 2018 07 17 Verified 2019 07 26 Pz Replaced by RADEX N Steel lamina couplings types NN NANA 1 to 4 NENA 1 and 2 NENE 1 NNZ NNW according to dir...

Page 2: ...f flange hubs 14 4 4 Assembly disassembly of clamping ring hubs 15 4 5 General advice for assembly of spacer 17 4 6 Vertical assembly disassembly 18 4 7 Assembly disassembly of the lamina sets RADEX N...

Page 3: ...z Wb Replacing KTR N dated 2018 07 17 Verified 2019 07 26 Pz Replaced by Illustration 1 RADEX N type NN Illustration 2 RADEX N type NANA 1 Illustration 3 RADEX N type NANA 2 Illustration 4 RADEX N typ...

Page 4: ...178 18 90 100 85 132 119 210 80 175 15 300 140 251 91 233 73 166 6 184 24 105 110 90 147 128 225 90 200 20 340 160 281 101 263 83 186 6 204 24 115 120 100 163 145 265 100 223 23 370 170 309 109 288 8...

Page 5: ...n note ISO 16016 Drawn 2019 07 23 Pz Wb Replacing KTR N dated 2018 07 17 Verified 2019 07 26 Pz Replaced by Illustration 7 RADEX N type NNZ Illustration 8 RADEX N type NANA 3 Illustration 9 RADEX N ty...

Page 6: ...5 150 166 170 225 350 165 186 190 250 380 185 206 210 275 420 200 246 245 320 500 240 286 290 383 567 280 336 340 445 660 330 138 135 180 300 135 158 150 195 325 150 168 170 225 350 165 188 190 250 38...

Page 7: ...7500 21000 26250 45000 Max speed n rpm 5400 5000 4300 3700 3800 3500 3300 3000 2800 2300 Size 286 336 138 158 168 188 208 248 288 338 Torque Nm TKN 150000 210000 23000 33000 45000 56000 70000 120000 2...

Page 8: ...ure to read through and observe the following safety indications All operations on and with the coupling have to be performed taking into account safety first Please make sure to switch off the power...

Page 9: ...rsional vibrations are e g drives with diesel engines piston pumps piston compressors etc If requested KTR will perform the coupling selection and the torsional vibration calculation The couplings sup...

Page 10: ...Washer 3 Spacer 7 see table 6 Hexagon nut clamping nut 4 see table 6 Dowel screw 8 2 Setscrew DIN EN ISO 4029 1 Design as clamping ring hub frictionally engaged shaft hub connection on request Illustr...

Page 11: ...le 6 Dowel screw 8 2 Setscrew DIN EN ISO 4029 1 Design as clamping ring hub frictionally engaged shaft hub connection on request Illustration 13 RADEX N type NNZ Components of RADEX N type NANA 4 Comp...

Page 12: ...aft hub connection on request Illustration 15 RADEX N type NNW Table 6 Number of single parts Size 20 25 35 38 42 50 60 70 80 85 Fit bolt item 4 1 4 4 4 4 4 4 6 6 6 6 Distance sleeve item 5 1 4 4 4 4...

Page 13: ...warranty claims resulting from insufficient remachining KTR supplies unbored or pilot bored coupling components and spare parts only upon explicit request of the customer These parts are additionally...

Page 14: ...to fasten the hubs as well as all screw connections must be secured against working loose additionally e g conglutinating with Loctite average strength For axial alignment of the coupling the distanc...

Page 15: ...e table 1 and 2 is decisive In order to set the right dimension E you should proceed as follows Clean and degrease the hub bores and shafts afterwards lubricate with a thin fluid oil e g Castrol 4 in...

Page 16: ...screw the clamping screws evenly one after another During every revolution every screw may only be unscrewed by half a turn Unscrew all clamping screws by 3 4 pitches Remove the screws located next to...

Page 17: ...Having mounted the spacer completely re assemble the screws and sleeves for limitation of axial clearance see illustration 22 Please observe the axial clearance S as per dimension sheet Secure the sc...

Page 18: ...tion 24 and 25 as an alternative The internal sides of the flange hub on top or centering surface of the flange hub at the bottom must be flush with the front sides of the shafts see illustration 24 a...

Page 19: ...e time being the fit bolts to be assembled reciprocally see illustration 26 or 27 respectively Tighten the hexagon nuts one after the other and with several revolutions to the tightening torque specif...

Page 20: ...under the screw head The pressure screws in the clamping nut must not protude on the pressure side see illustration 29 All components must be superimposed without any gap Afterwards turn back the clam...

Page 21: ...168 186 188 206 208 246 248 286 288 336 338 Pitch circle D1 240 260 290 320 350 410 480 550 Disassembly STOP Driving components falling down may cause injury to persons or damage on the machine Secure...

Page 22: ...to compensate for external influences like for example thermal expansion or foundation settling In order to ensure a long service life of the coupling and avoid dangers with the use in potentially ex...

Page 23: ...Type NN NANA1 NANA2 Kw angular 1 20 0 60 1 2 1 0 0 2 1 0 25 0 80 1 6 1 0 0 2 1 0 35 1 00 2 0 1 1 0 3 1 0 38 1 20 2 4 1 2 0 3 1 0 42 1 40 2 8 1 2 0 4 1 0 50 1 60 3 2 1 5 0 4 1 0 60 1 00 2 0 1 5 0 8 1 0...

Page 24: ...volume between the cover and the coupling The coupling must not operate in an accumulation of dust For covers with unlocked openings on the top face no light metals must be used if the couplings are...

Page 25: ...Elimination Different operating noise and or vibrations occuring Misalignment none 1 Set the unit out of operation 2 Eliminate the reason for the misalignment e g loose foundation bolts breaking of t...

Page 26: ...2 Disassemble the coupling and remove remainders of the steel lamina sets 3 Inspect coupling components and replace coupling components that have been damaged 4 Insert steel lamina sets assemble coupl...

Page 27: ...g and driven side settle during the course of load inspect the alignment of the coupling and re align the coupling if necessary If some individual laminas are broken the lamina sets of the coupling ha...

Page 28: ...o 230 C 250 C T3 40 C to 175 C 195 C T4 40 C to 110 C 130 C T5 40 C to 75 C 95 C T6 40 C to 60 C 80 C Explanation The maximum surface temperatures each result from the maximum permissible ambient or o...

Page 29: ...ndable to replace the lamina sets find out the cause according to the table Breakdowns if possible The maintenance intervals must be adjusted to the modified operating parameters without fail 2G 2D Ga...

Page 30: ...f not possible differently for reason of space or functioning RADEX N Year Deviating marking applies until 31st October 2019 Short marking II 2GD c IIC T X I M2 c X Complete marking II 2G c IIC T6 T5...

Page 31: ...requirements according to enclosure II of directive 2014 34 EU The coupling described in here complies with the specifications of the following standards rules DIN EN ISO 80079 36 DIN EN ISO 80079 37...

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