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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.

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

DJJ1AB KR…B1 CKR…B2 CCKR…C KRGC1 CKRGC2 CCKRGEFG maxHIKLPQRSVZFlex couplingbrake drum X – Ybrake disc X1 – Y1Weight kg (without oil)Oil max (l)
KRGCKRGCCKRGKRGCKRGCCKRG
719246940502287718922 114 42 110 2 60 70 M122735M6M8 21 BT 10 160 – 60 on request8.30.92
286040M10
82450256911941836M88.71.5
286041M10
92838 11160802959624631 128 55 132 80 85 M204354M10M12 27 BT 20 160 – 60 200 – 75161.95
42●●●

48●●

8011079M16
112838608032510768.5 255301271954256M10M121820.52.753.35
42●●●

48●●

8011083M16
1228386080372122 7532224145 2244256M10M1221.524.54.14.8
42●●●

48●●

8011083M16
1342481431103981372853452817770 170100 M2784M16 345BT 30200 – 75 250 – 95400 – 30 450 – 3034375.25.8
55●●●

60●●●

11058.5 374104M20
1548551451104601518713734341146135206802591101208070M16M2035BT40250 – 95 315 – 118400 – 30 450 – 3050.354.3627.658.69.3
6065●●●140100M20
174855145110 520 170 96 176 362 442 522 37 225 90 250 337 110 13580M16M20 34 15 BT 50 315 – 118 400 – 150 445 – 30 450 – 30 77 83 92 11.7 13.6 14.9
60

65●●●

140103M20
75●80●140170103133
194855145110 565 190 1780M16M20 83 90 99 14.2 16.5 18.5
60

65●●●

140103M20
75●80●140170103133
KRB / KRBP / KRG / CKRG-CCKRG

SERIES 7: KRD / CKRD – CCKRD

C3 KRDC4 CKRDC5 CCKRDG1L1Weight kg (without oil)
KRDCKRDCCKRD
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

AC KCGC1 CKCGC2 CCKCGD G maxG1 maxII1M KCGM1 CKCGM2 CCKCGNBrake drum X – YZBrake disc X1 – Y1Z1Gear Couplig SizeWeight kg (without oil)
KCGCKGCCCKCG
722822950 43 80143 44.51” E.I. (5) (6)11.3
825623414811.7
9295290.6 65 45 50 114190.6 50.8 250-95 45 400-30 32 1” ½ E.I. (5) (6)22.9
11325299.6345.6 199.6245.624.927.4
12372299.6366.6266.628.531.4
13398325.1385.6225.1285.137.640.6
15460410478528 95 65 76 146258326376 79.5 250-95 315-118 57.5 21.5 400-30 445-30 44.5 2” ½ E.I. (5) (6)76.680.688.3
17520 434 514 594 282 362 44291.197.1106.1
1956598.1104.1113.1
21620 503 603 693 111 90 90 165 323 423 513 93.5315-11826560-30383” E.I. (5) (6)142.3152.3160.3
24714400-15015710-3038160.3170.3178.3
27780627754845 134 110 105 170417535635 109.5 500-190 6 795-30 303” ½ E.I. (5) (6)253.2272.2291.2
29860656774874446564664307.2325.2335.2
341000750 881981160120120190 510641741123.5800-30424” E.I. (5) (6)492.4507.4 517.4
4613301313.4244175190280 933.4192.56” 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

DJAB KR… B1 CKR… B2 CCKR…C KR…C1 CKR…C2 CCKR…EFGHIKLPQRSVZFlex couplingBrake drum X – YBrake disc X1 – Y1Weight kg (without oil) KRG CKRG CCKRGOil 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 L1Weight kg (without oil)
KRDCKRDCCKRD
21292392482 90 120 99.5 109.5 117.5
327*427*517*
24292392482 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.
DJ J1AC C1 C2GHKL L1PRSYElastic couplingWeight kg (without oil)
KRG3CKRG3CCKRG3
174855 145110 520 418 498 578 90 240 3 110 82 13080M16M20 82 B3T-50 84 90 99
60>65●●●140103 M20
75●80●140 – 170103132
194855 145110 56580M16M20 91 97 106
60>65●●●140103 M20
75●80●140 – 170103132
– 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
2180●90170 620457557647 110 290 3 140 78 150130M20M24 82 B3T-60 134 144 152
100●●210492592682165M24
2480●90170 714457557647130M20M24 152 162 170
100●●210492592682165M24
27 120 max 210 780 566 684 784 130 354 4 150 112 180167M24 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 205200M36 151 B3T-90 505 481 491
for max hole
46 180 max 320 1330 1092 180 490 7 195 138 270190M36 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

DJ J1ABC KRM C1 CKRM C2 CCKRMEFGHLPQRSElastic couplingWeight kg (without oil)
KRMCKRMCCKRM
92838 11160802959627631 128 50 185 50 80 M204354M10M12 53 F14.5
42●●●8079M16
1128386080325107 285331274256M10M1216.519
42●●●48●●8011083M16
123880372122352241454256M122023
42●●●48●●8011083M16
134248143110398137332392281777522872105 M278455 F3336
55●●●60●●●11058.574104M20
1548551451104601513674354853520680235801128070M16M2056 F485259.7
6065●●●140100M20
174855145110 520 170 380 460 540 37 225 75 288 90 12080M16M20 58 F 67 73 82
6065●●●140103M20
75●80●140170105135
194855145110 565 190 1780M16M20 74 80 89
6065●●●140103M20
75●80●140170105135M20
– 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

DJ J1ABC KRM C1 CKRM C2 CCKRMEFGHLPQRSElastic couplingWeight kg (without oil)
KRMCKRMCCKRM
92838 11160802959627631 128 50 185 50 80 M204354M10M12 53 F14.5
42●●●8079M16
1128386080325107 285331274256M10M1216.519
42●●●48●●8011083M16
123880372122352241454256M122023
42●●●48●●8011083M16
134248143110398137332392281777522872105 M278455 F3336
55●●●60●●●11058.574104M20
1548551451104601513674354853520680235801128070M16M2056 F485259.7
6065●●●140100M20
174855145110 520 170 380 460 540 37 225 75 288 90 12080M16M20 58 F 67 73 82
6065●●●140103M20
75●80●140170105135
194855145110 565 190 1780M16M20 74 80 89
6065●●●140103M20
75●80●140170105135M20
– 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

AB KDMB1 CKDMB2 CCKDMC KDMC1 CKDMC2 CCKDM D G min D G maxHIM KDMM1 CKDMM2 CCKDMNPDisc coupling sizeWeight kg (without oil)
KDMCKDMCCKDM
11325 186232 289335 16 55 123 50 189235 51.5 76 105522.525
123722533562562629
1339821627633939921651476021927961.588106541.344.3
1546024631436439145950921751667025131936972.51041075656976.7
17520 269 349 429 444 524 604 31 90 192 85 274 354 434 87.5 122 10858995104
1956596102111
21620 315 415 505 540 640 730 41 115 244 110 320 420 510 112.5 154 1110159169177
24714177187195
27780358476576644762862 51 135 303 140364482582 143 196 1140289307326
29860387505605673791891393511611342360370
341000442573673768899999611653401604485796791632281160556562572
– WHEN ODERING, SPECIFY: SIZE – MODEL – FINISHED D-G BORES UPON REQUEST

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

AB KDMB1 CKDMB2 CCKDMCB KD…CB1 CKD…CB2 CCKDM…D maxG1 maxII1MB KD….MB1 CKD…MB2 CCKDM…NN1 StOPQRS ÷0.1T f7UVZDisc coupling size
12372186253336.5403.555605080206.5273.551.59917.57667691281428 M81141055
13398216276440.5500.5656560140 170240.5300.561.516321.58878129155170 121401065
15460246314364495.5563.5613.5758070150275.5343.5393.572.517724.510498134175192 M101571091075
17520 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 122107 143 204 224 185 118 1085
1956587
21620 315 415 505 628.5 728.5 818.5 115 120 110 240 358.5 458.5 548.5 112.5 201 38.5 154133 137 256 276 M12 234 112 1110
24714109
27780358476576731.5849.5949.5 135 145 140 180411.5529.5629.5 143 230.5 47.5 196107 155 315 338 M14 286 133 1140
29860387505605760.5878.5978.5440.5558.5658.5109
341000442573673845.5976.51076.5165175160505.5636.5736.5163240.557.5228124152356382M163251301160
– 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

SERIESACFD-G m6LMNP
D34KBM100014008551401401120257.5170
D46KBM1330190012751602001550312.5170
D34KBM D46KBM
WEIGHT Kg (Without oil)OIL max. lCENTER OF GRAVITY g lMOMENT OF INERTIA J (WR2) Kgm²
Kgmmab
81016295271026.1964.25
2200390251495591.25183.7
D34KBM D46KBM

SERIES D34KDM – D34CKDM

WEIGHT Kg (without oil)OIL max. lCENTER OF GRAVITY g l kg mmMOMENT OF INERTIA J (WR2) Kgm² a b c d
D34KDM880162102251226.0865.530.9550.955
D34CKDM1014194.5194.553226.0867.990.9550.955
D34KDM D34CKDM

EK

DJGLACMNOWeight kg (without oil)OIL max lElectric motors
TYPEkW 1500 rpm
7● 245224382691321651301111.40.9290S – 90L **90LL1.1 -1.5 1.6
8● 286228 h7442991422151801312.21.5100 L 112 M2.2 -3 4
9● 388238573991872652301326.91.95132S – 132M ** 132L5.5 – 7.5 9.2
11● 4211242633991873002501728.32.75160M -160 L11 – 15
12●● 4811248 j765 485 214300250 17664.1180 M 180 L18.5 22
13● 551125580 350300 765.2200 L30
• 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

DJJ1AB

KSD

B1

CKSD

B2

CCKSD

C

max

C1

CKSD

C2

CCKSD

EFGHIKLMNPQRST

max

71924 694050 228 7715955 75 90 4 M6 835 3 114 14 M122938M6M8 50
2860174705043M10
82450 256 91 194 81 6533M8
286043M10
92838 1116080 295 96 250 116 96 114 8 M8 13 85 5 128 20 M203961M10M12 69
●●●428078M16
1128386080 325 107 73.5 259 289.5 113 1953859M10M12
●●●428078M16
123842 11380110 372 122 80 274 327 125 112 130 224 98 7 145 225483M12M16 80
●●●4811083M16
134248 144110 398 137 367 407 190 135 155 12 158 6 177 29 M2776M16 88
●●●55●●●6011058.576106M20
154855 145110 460 151 92 142 390 438 488 195 150 178 M10 264 17 159 7 206 288070M16M20 100
60●●●65140100M20
174855 145110 520 170 101 181 455 516 596 245 180 200 337 17 180 225 6069 M20 132
60●●●6514099
●75●8014017099139
194855 145110 565 190 225 4569
60●●●6514099
●75●8014017099139
– 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●80170 620 205 115 205505580670260 200 228 8 M14 400 23190 7 250 57 M46135M20 145
●100210545620710300230165M24
24●80170 714 229505580670236190 M46135M20
●100210545620710276230165M24
27120 max210780278138CONSULT 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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