Transfluid K Series

Transfluid K Series Fluid Couplings

A dynamic constant fill design with dual-functionality. It integrates a driving impeller (pump) on the input shaft, a driven impeller (turbine) on the output shaft, and a sealed cover flanged to the outer impeller.

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Transfluid - K Series

The TRANSFLUID K Series Fluid coupling functions as a hydrodynamic transmission, where impellers act as both a centrifugal pump and a hydraulic turbine. When an input drive powers the pump (like an electric motor or Diesel engine), it transfers kinetic energy to the oil within the coupling. Centrifugal force then propels the oil across the pump blades outward in the coupling.

Benefits

  • very smooth start-ups
  • protection of the motor and the driven machine from jams and overloads use
  • higher duration and operating convenience of the whole drive train, thanks to the protection function achieved by the fluid coupling
  • higher energy saving, thanks to current peak reduction
  • limited starting torque down to 120% in the versions with a double delayed fill chamber
  • same torque at input and output: the motor can supply the maximum torque even when load is jammed
  • torsional vibration absorption for internal combustion engines, thanks to the presence of a fluid as a power transmission element
  • possibility to achieve a high number of start-ups, also with an inversion of the rotation direction
  • load balancing in case of a double motor drive: fluid couplings automatically adjust load speed to the motors speed
  • high efficiency
  • minimum maintenance
  • cast iron and steel material with anticorrosion treatment

Applications

  • Belt Conveyors
  • Crushers and Screens
  • Fans and Blowers
  • Pumps
  • Mixers and Agitators
  • Industrial Dryers
  • Bucket Elevators
  • Centrifuges
  • Extruders

SERIES 7: KRG – KRB (w/Brake Drum) – KRBP (w/Brake Disc) / CKRG – CCKRG

D J J1 A B KR… B1 CKR… B2 CCKR… C KRG C1 CKRG C2 CCKRG E F G max H I K L P Q R S V Z Flex coupling brake drum X – Y brake disc X1 – Y1 Weight kg (without oil) Oil max (l)
KRG CKRG CCKRG KRG CKRG CCKRG
7 19 24 69 40 50 228 77 – – 189 – – 22 114 42 110 – 2 60 70 M12 27 35 M6 M8 21 – BT 10 160 – 60 on request 8.3 – – 0.92 – –
28 60 40 M10
8 24 50 256 91 194 18 36 M8 8.7 1.5
28 60 41 M10
9 28 38 111 60 80 295 96 246 31 128 55 132 80 85 M20 43 54 M10 M12 27 BT 20 160 – 60 200 – 75 16 1.95
42●●●

48●●

 80 110 79 M16
11 28 38 60 80 325 107 68.5 255 301 27 195 42 56 M10 M12 18 20.5 2.75 3.35
42●●●

48●●

 80 110 83 M16
12 28 38 60 80 372 122 75 322 24 145 224 42 56 M10 M12 21.5 24.5 4.1 4.8
42●●●

48●●

 80 110 83 M16
13 42 48 143 110 398 137 285 345 28 177 70 170 100 M27 84 M16 34 5 BT 30 200 – 75 250 – 95 400 – 30 450 – 30 34 37 5.2 5.8
55●●●

60●●●

 110 58.5 3 74 104 M20
15 48 55 145 110 460 151 87 137 343 411 461 35 206 80 259 110 120 80 70 M16 M20 35 BT40 250 – 95 315 – 118 400 – 30 450 – 30 50.3 54.3 62 7.65 8.6 9.3
60 65●●● 140 100 M20
17 48 55 145 110 520 170 96 176 362 442 522 37 225 90 250 337 110 135 80 M16 M20 34 15 BT 50 315 – 118 400 – 150 445 – 30 450 – 30 77 83 92 11.7 13.6 14.9
60

65●●●

 140 103 M20
75● 80● – 140 170 103 133
19 48 55 145 110 565 190 17 80 M16 M20 83 90 99 14.2 16.5 18.5
60

65●●●

 140 103 M20
75● 80● – 140 170 103 133
KRB / KRBP / KRG / CKRG-CCKRG

SERIES 7: KRD / CKRD – CCKRD

C3 KRD C4 CKRD C5 CCKRD G1 L1 Weight kg (without oil)
KRD CKRD CCKRD
7 138 – – 28 40 5.7 – –
8 138 6.1
9 176 38 50 11.6
11 185 231 42 13 15.5
12 252 16.7 19.7
13 212 272 48 60 26.3 29.3
15 230 298 348 60 80 40.4 44.4 52.1
17 236 343 423 75 100 58.1 64.1 73.1
19 65.1 71.1 80.1
– D BORES RELATIVE TO TAPER BUSHES WITH A KEYWAY ACCORDING TO ISO 773 – DIN 6885/1 PARTICULAR CASES: • CYLINDRICAL BORE WITHOUT TAPER BUSH WITH A KEYWAY ISO 773 – DIN 6885/1 •• CYLINDRICAL BORE WITHOUT TAPER BUSH, WITH A REDUCED KEYWAY (DIN 6885/2) ••• TAPER BUSH WITHOUT KEYWAY – FOR …KRB – KRBP SERIES SPECIFY X AND Y OR X1 AND Y1 DIAMETER EXAMPLE: 9KRB – D38 – BRAKE DRUM = 160×60

SERIES 7: KCG – KCGB / CKCGBP – CCKCGB – CCKCG

A C KCG C1 CKCG C2 CCKCG D G max G1 max I I1 M KCG M1 CKCG M2 CCKCG N Brake drum X – Y Z Brake disc X1 – Y1 Z1 Gear Couplig Size Weight kg (without oil)
KCG CKGC CCKCG
7 228 229 – – 50 – 43 80 143 – – 44.5 ● ● ● ● 1” E.I. (5) (6) 11.3 – –
8 256 234 148 11.7
9 295 290.6 65 45 50 114 190.6 50.8 250-95 45 400-30 32 1” ½ E.I. (5) (6) 22.9
11 325 299.6 345.6 199.6 245.6 24.9 27.4
12 372 299.6 366.6 266.6 28.5 31.4
13 398 325.1 385.6 225.1 285.1 37.6 40.6
15 460 410 478 528 95 65 76 146 258 326 376 79.5 250-95 315-118 57.5 21.5 400-30 445-30 44.5 2” ½ E.I. (5) (6) 76.6 80.6 88.3
17 520 434 514 594 282 362 442 91.1 97.1 106.1
19 565 98.1 104.1 113.1
21 620 503 603 693 111 90 90 165 323 423 513 93.5 315-118 26 560-30 38 3” E.I. (5) (6) 142.3 152.3 160.3
24 714 400-150 15 710-30 38 160.3 170.3 178.3
27 780 627 754 845 134 110 105 170 417 535 635 109.5 500-190 6 795-30 30 3” ½ E.I. (5) (6) 253.2 272.2 291.2
29 860 656 774 874 446 564 664 307.2 325.2 335.2
34 1000 750 881 981 160 120 120 190 510 641 741 123.5 ● ● 800-30 42 4” E.I. (5) (6) 492.4 507.4 517.4
46 1330 – – 1313.4 244 175 190 280 – – 933.4 192.5 ● ● ● ● 6” E.I. (5) (6) – – 1333
• UPON REQUEST (5) E.I. = EXPOSED INCH SCREWS (6) GEAR COUPLING WITH SPECIAL CALIBRATED BOLTS – WHEN ORDERING, SPECIFY: SIZE – MODEL EXAMPLE: 21CKCG

SERIES 21: KRG – KRB (w/Brake Drum) – KRBP (w/Brake Disc) / CKRG – CCKRG

D J A B KR… B1 CKR… B2 CCKR… C KR… C1 CKR… C2 CCKR… E F G H I K L P Q R S V Z Flex coupling Brake drum X – Y Brake disc X1 – Y1 Weight kg (without oil) KRG CKRG CCKRG Oil max l KRG CKRG CCKRG
21 ●80 >90 >170 >620 >205 >110 >199 >433 >533 >623 >45 >250 >110 >290 >400 >3 >140 >170 >M36 >130 >M20 >M24 >40 >45 >BT60 >400 – 150 >500 – 190 >560 – 30 >630 – 30 >710 – 30 >795 – 30 >129 >139 >147 >19 >23 >31
●●100 >210 >468 >568 >658 >80 >165 >M24
24 ●80 >90 >170 >714 >229 >433 >533 >623 >21 >130 >M20 >M24 >147 >157 >165 >40 >31.2 >39
●●100 >210 >468 >568 >658 >56 >165 >M24
27 >120 max >210 >max >780 >278 >131 >231 >484 >602 >702 >15 >315 >130 >354 >537 >4 >150 >200 >M45 >167 >M24 >- >20 >BT80 >500 – 190 >710 – 30 >795 – 30 >228 >246 >265 >42 >50 >61
>(for max bore)
29 >135 max >240 >max >860 >295 >513 >631 >731 >18 >350 >167 >M24 >- >281 >299 >309 >55 >63 >73
>(for max bore)
34 >150 max >265 >max

1000

 >368 >638 >749 >849 >19 >400 >140 >395 >5 >170 >220 >200 >M36 >- >18 >BT90 >630 – 236 >1000 – 30 >472 >482 >496 >82.5 >92.5 >101
>(for max bore)
– D BORES WITH A KEYWAY ACCORDING TO ISO 773 – DIN 6885/1 • STANDARD DIMENSIONS WITH A KEYWAY ISO 773 – DIN 6885/1 •• STANDARD DIMENSIONS WITH REDUCED KEYWAY (DIN 6885/2) – WHEN ORDERING, SPECIFY: SIZE – MODEL- D DIAMETER. FOR …KRB OR …KRBP, SPECIFY X AND Y OR X1 AND Y1 DIMENSIONS BRAKE DRUM OR DISC – UPON REQUEST, G FINISHED BORE EXAMPLE: 19KRBP – D80 – BRAKE DISC 450 x 30

SERIES 21: KRD / CKRD – CCKRD

C3 KRD C4 CKRD C5 CCKRD G1 L1 Weight kg (without oil)
KRD CKRD CCKRD
21 292 392 482 90 120 99.5 109.5 117.5
327* 427* 517*
24 292 392 482 117.5 127.5 135.5
327* 427* 517*
27 333 451 551 100 140 178 186 215
29 362 480 580 231 249 259
34 437 568 668 140 150 358 373 383
KRD / CKRD – CCKRD

SERIES 17: KRG3 – KRB3 (w/Brake Drum) – KRBP3 (w/Brake Disc) / CKRG3 – CCKRG3

The three pieces flexible coupling B3T allows the removal of the elastic elements (rubber blocks), without removal of the electric
motor; only with the …KRB3 (with brake drum) coupling the electric motor must be moved by the value of ‘Y’.
‘Y’ = axial displacement male part of the coupling B3T necessary for the removal of the elastic elements.
D J J1 A C C1 C2 G H K L L1 P R S Y Elastic coupling Weight kg (without oil)
KRG3 CKRG3 CCKRG3
17 48 55 145 110 520 418 498 578 90 240 3 110 82 130 80 M16 M20 82 B3T-50 84 90 99
60 >65●●● 140 103 M20
75● 80● – 140 – 170 103 132
19 48 55 145 110 565 80 M16 M20 91 97 106
60 >65●●● 140 103 M20
75● 80● – 140 – 170 103 132
– D BORES RELEVANT TO TAPER BUSH WITH KEYWAY ACCORDING TO ISO773 – DIN6885/1 • STANDARD CYLINDRICAL BORES WITHOUT TAPER BUSH WITH KEYWAY ACCORDING TO ISO773 – DIN6885/1 ••• TAPER BUSH WITHOUT KEYWAY
21 80● 90 170 – 620 457 557 647 110 290 3 140 78 150 130 M20 M24 82 B3T-60 134 144 152
100●● 210 492 592 682 165 M24
24 80● 90 170 714 457 557 647 130 M20 M24 152 162 170
100●● 210 492 592 682 165 M24
27 120 max 210 780 566 684 784 130 354 4 150 112 180 167 M24 120 B3T-80 247 265 284
29 135 max 240 860 595 713 813 for max hole 300 318 328
34 150 max 265 1000 704 815 915 150 395 5 170 119 205 200 M36 151 B3T-90 505 481 491
for max hole
46 180 max 320 – 1330 – – 1092 180 490 7 195 138 270 190 M36 122 B3T-100 – – 1102
for max hole
– D CYLINDRICAL BORES WITHOUT TAPER BUSH WITH KEYWAY ACCORDING TO ISO773 – DIN6885/1 • STANDARD DIMENSIONS •• STANDARD DIMENSION WITH REDUCED KEYWAY (DIN 6885/2) – ON ORDER FORM PLEASE SPECIFY: DIMENSION, MODEL, DIAMETER D – EXAMPLE: 21CCKRG3 – D80

SERIES 9: KRM / CKRM – CCKRM

Taper Bush Version

D J J1 A B C KRM C1 CKRM C2 CCKRM E F G H L P Q R S Elastic coupling Weight kg (without oil)
KRM CKRM CCKRM
9 28 38 111 60 80 295 96 276 – – 31 128 50 185 50 80 M20 43 54 M10 M12 53 F 14.5 – –
42●●● – 80 – 79 M16
11 28 38 60 80 325 107 285 331 27 42 56 M10 M12 16.5 19
42●●● 48●● 80 110 83 M16
12 38 80 372 122 352 24 145 42 56 M12 20 23
42●●● 48●● 80 110 83 M16
13 42 48 143 110 398 137 332 392 28 177 75 228 72 105 M27 84 55 F 33 36
55●●● 60●●● 110 58.5 74 104 M20
15 48 55 145 110 460 151 367 435 485 35 206 80 235 80 112 80 70 M16 M20 56 F 48 52 59.7
60 65●●● 140 100 M20
17 48 55 145 110 520 170 380 460 540 37 225 75 288 90 120 80 M16 M20 58 F 67 73 82
60 65●●● 140 103 M20
75● 80● – 140 170 105 135
19 48 55 145 110 565 190 17 80 M16 M20 74 80 89
60 65●●● 140 103 M20
75● 80● – 140 170 105 135 M20
– D BORES RELEVANT TO TAPER BUSH WITH KEYWAY ACCORDING TO ISO773 – DIN6885/1 • CYLINDRICAL BORES WITHOUT TAPER BUSH WITH KEYWAY ACCORDING TO ISO773 – DIN6885/1 •• CYLINDRICAL BORES WITHOUT TAPER BUSH WITH A REDUCED KEYWAY (DIN 6885/2) ••• TAPER BUSH WITHOUT KEYWAY

Cylindrical Bore Version

D J J1 A B C KRM C1 CKRM C2 CCKRM E F G H L P Q R S Elastic coupling Weight kg (without oil)
KRM CKRM CCKRM
9 28 38 111 60 80 295 96 276 – – 31 128 50 185 50 80 M20 43 54 M10 M12 53 F 14.5 – –
42●●● – 80 – 79 M16
11 28 38 60 80 325 107 285 331 27 42 56 M10 M12 16.5 19
42●●● 48●● 80 110 83 M16
12 38 80 372 122 352 24 145 42 56 M12 20 23
42●●● 48●● 80 110 83 M16
13 42 48 143 110 398 137 332 392 28 177 75 228 72 105 M27 84 55 F 33 36
55●●● 60●●● 110 58.5 74 104 M20
15 48 55 145 110 460 151 367 435 485 35 206 80 235 80 112 80 70 M16 M20 56 F 48 52 59.7
60 65●●● 140 100 M20
17 48 55 145 110 520 170 380 460 540 37 225 75 288 90 120 80 M16 M20 58 F 67 73 82
60 65●●● 140 103 M20
75● 80● – 140 170 105 135
19 48 55 145 110 565 190 17 80 M16 M20 74 80 89
60 65●●● 140 103 M20
75● 80● – 140 170 105 135 M20
– D BORES WITH A KEYWAY ACCORDING TO ISO 773 – DIN 6885/1 • STANDARD DIMENSIONS WITH A KEYWAY ISO 773 – DIN 6885/1 •• STANDARD DIMENSIONS WITH REDUCED KEYWAY (DIN 6885/2) – WHEN ORDERING, SPECIFY: SIZE – SERIE D DIAMETER – EXAMPLE: 13 CKRM-D 55

Series 11: KDM / CKDM – CCKDM

A B KDM B1 CKDM B2 CCKDM C KDM C1 CKDM C2 CCKDM D G min D G max H I M KDM M1 CKDM M2 CCKDM N P Disc coupling size Weight kg (without oil)
KDM CKDM CCKDM
11 325 186 232 – 289 335 – 16 55 123 50 189 235 – 51.5 76 1055 22.5 25 –
12 372 253 356 256 26 29
13 398 216 276 339 399 21 65 147 60 219 279 61.5 88 1065 41.3 44.3
15 460 246 314 364 391 459 509 21 75 166 70 251 319 369 72.5 104 1075 65 69 76.7
17 520 269 349 429 444 524 604 31 90 192 85 274 354 434 87.5 122 1085 89 95 104
19 565 96 102 111
21 620 315 415 505 540 640 730 41 115 244 110 320 420 510 112.5 154 1110 159 169 177
24 714 177 187 195
27 780 358 476 576 644 762 862 51 135 303 140 364 482 582 143 196 1140 289 307 326
29 860 387 505 605 673 791 891 393 511 611 342 360 370
34 1000 442 573 673 768 899 999 61 165 340 160 448 579 679 163 228 1160 556 562 572
– WHEN ODERING, SPECIFY: SIZE – MODEL – FINISHED D-G BORES UPON REQUEST

SERIES 12: KDMB (w/Brake Drum) – KDMBP (w/Brake Disc) / CKDMB – CCKDMB

A B KDM B1 CKDM B2 CCKDM CB KD… CB1 CKD… CB2 CCKDM… D max G1 max I I1 MB KD…. MB1 CKD… MB2 CCKDM… N N1 St O P Q R S ÷0.1 T f7 U V Z Disc coupling size
12 372 186 253 – 336.5 403.5 – 55 60 50 80 206.5 273.5 – 51.5 99 17.5 76 67 69 128 142 8 M8 114 – 1055
13 398 216 276 440.5 500.5 65 65 60 140 170 240.5 300.5 61.5 163 21.5 88 78 129 155 170 12 140 1065
15 460 246 314 364 495.5 563.5 613.5 75 80 70 150 275.5 343.5 393.5 72.5 177 24.5 104 98 134 175 192 M10 157 109 1075
17 520 269 349 429 548.5 628.5 708.5 90 95 85 160 210 303.5 383.5 463.5 87.5 192 29.5 122 107 143 204 224 185 118 1085
19 565 87
21 620 315 415 505 628.5 728.5 818.5 115 120 110 240 358.5 458.5 548.5 112.5 201 38.5 154 133 137 256 276 M12 234 112 1110
24 714 109
27 780 358 476 576 731.5 849.5 949.5 135 145 140 180 411.5 529.5 629.5 143 230.5 47.5 196 107 155 315 338 M14 286 133 1140
29 860 387 505 605 760.5 878.5 978.5 440.5 558.5 658.5 109
34 1000 442 573 673 845.5 976.5 1076.5 165 175 160 505.5 636.5 736.5 163 240.5 57.5 228 124 152 356 382 M16 325 130 1160
– WHEN ORDERING, SPECIFY: SIZE – MODEL – D AND G1 FINISHED BORES UPON REQUEST, AND SPECIAL I1 DIMENSION – FOR BRAKE DRUM OR DISC, SPECIFY DIMENSIONS X AND Y OR X1 AND Y1 EXAMPLE : 17KDMB – BRAKE DRUM 400 x 150

SERIES D34KBM – D46KBM

SERIES A C F D-G m6 L M N P
D34KBM 1000 1400 855 140 140 1120 257.5 170
D46KBM 1330 1900 1275 160 200 1550 312.5 170
D34KBM D46KBM
WEIGHT Kg (Without oil) OIL max. l CENTER OF GRAVITY g l MOMENT OF INERTIA J (WR2) Kgm²
Kg mm a b
810 162 952 710 26.19 64.25
2200 390 2514 955 91.25 183.7
D34KBM D46KBM

SERIES D34KDM – D34CKDM

WEIGHT Kg (without oil) OIL max. l CENTER OF GRAVITY g l kg mm MOMENT OF INERTIA J (WR2) Kgm² a b c d
D34KDM 880 162 1022 512 26.08 65.53 0.955 0.955
D34CKDM 1014 194.5 194.5 532 26.08 67.99 0.955 0.955
D34KDM D34CKDM

EK

D J G L A C M N O Weight kg (without oil) OIL max l Electric motors
TYPE kW 1500 rpm
7 ● 24 52 24 38 269 132 165 130 11 11.4 0.92 90S – 90L **90LL 1.1 -1.5 1.6
8 ● 28 62 28 h7 44 299 142 215 180 13 12.2 1.5 100 L 112 M 2.2 -3 4
9 ● 38 82 38 57 399 187 265 230 13 26.9 1.95 132S – 132M ** 132L 5.5 – 7.5 9.2
11 ● 42 112 42 63 399 187 300 250 17 28.3 2.75 160M -160 L 11 – 15
12 ●● 48 112 48 j7 65 485 214 300 250 17 66 4.1 180 M 180 L 18.5 22
13 ● 55 112 55 80 350 300 76 5.2 200 L 30
• CYLINDRICAL BORE WITH A KEYWAY ISO 773 – DIN 6885/1 •• CYLINDRICAL BORE WITH A REDUCED KEYWAY (DIN 6885/2) ** NOT STANDARD WHEN ORDERING SPECIFY: SIZE – MODEL – DIAMETER D and G EXAMPLE: 8 EK-D28 – G 28

SERIES 7: – KSD – CKSD – CCKSD

Taper Bush Version

D J J1 A B

KSD

 B1

CKSD

 B2

CCKSD

 C

max

 C1

CKSD

 C2

CCKSD

 E F G H I K L M N P Q R S T

max
7 19 24 69 40 50 228 77 – – 159 – – 55 75 90 4 M6 – 8 35 3 114 14 M12 29 38 M6 M8 50
28 60 174 70 50 43 M10
8 24 50 256 91 194 81 65 33 M8
28 60 43 M10
9 28 38 111 60 80 295 96 250 116 96 114 8 M8 13 85 5 128 20 M20 39 61 M10 M12 69
●●●42 80 78 M16
11 28 38 60 80 325 107 73.5 259 289.5 113 195 38 59 M10 M12
●●●42 80 78 M16
12 38 42 113 80 110 372 122 80 274 327 125 112 130 224 98 7 145 22 54 83 M12 M16 80
●●●48 110 83 M16
13 42 48 144 110 398 137 367 407 190 135 155 12 158 6 177 29 M27 76 M16 88
●●●55 ●●●60 110 58.5 76 106 M20
15 48 55 145 110 460 151 92 142 390 438 488 195 150 178 M10 264 17 159 7 206 28 80 70 M16 M20 100
60 ●●●65 140 100 M20
17 48 55 145 110 520 170 101 181 455 516 596 245 180 200 337 17 180 225 60 69 M20 132
60 ●●●65 140 99
●75 ●80 – 140 170 99 139
19 48 55 145 110 565 190 225 45 69
60 ●●●65 140 99
●75 ●80 – 140 170 99 139
– D BORES RELATIVE TO TAPER BUSHES WITH A KEYWAY ACCORDING TO ISO 773 – DIN 6885/1 PARTICUALR CASES: • CYLINDRICAL BORE WITHOUT TAPER BUSH ISO 773 – DIN 6885/1 ••• TAPER BUSH WITHOUT A KEYWAY

Cylindrical Bore Version

21 ●80 – 170 620 205 115 205 505 580 670 260 200 228 8 M14 400 23 190 7 250 57 M46 135 M20 145
●100 210 545 620 710 300 230 165 M24
24 ●80 170 714 229 505 580 670 236 190 M46 135 M20
●100 210 545 620 710 276 230 165 M24
27 120 max 210 780 278 138 CONSULT OUR ENGINEERS
• STANDARD CYLINDRICAL BORES WITH KEYWAYS ACCORDING TO ISO 773 – DIN 6885/1 – WHEN ORDERING SPECIFY: SIZE – MODEL – D DIAMETER

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