Bowex

For advanced drive technology

BoWex® FLE-PA DBP BoWex-ELASTIC® DBP

BoWex FLE-PA couplings are torsionally rigid curved-tooth flange couplings, made from a combination of nylon and steel, for diesel engine drives in combination with hydraulic pumps. The FLE-PA mounting flange is made from glass fiber reinforced polyamide with high mechanical stability and thermal strength. The coupling hub with external curved teeth is made from steel. The BoWex FLE-PA allows an extremely short installation space. Apart from that it is easy to assemble without any additional tools for alignment.

BoWex-ELASTIC is highly flexible, combining the benefits of the wellapproved BoWex system with the suppleness of a highly flexible coupling in compact design. Torsional vibrations and shock loads that may occur are dampened and reduced. The BoWex-ELASTIC consists of a highly flexible, annular rubber element from temperature-resistant natural caoutchouc, stressed for torque-tobore ratio, and a BoWex coupling hub to be plugged in axially.

87

BoWex BoWex-FLE-PA BoWex ELASTIC

Flange coupling for I. C.-engines

BoWex® Curved-tooth gear couplings®

For advanced drive technology

Flange coupling for I.C.-engines Types FLE-PA No. 016 and BoWex-ELASTIC No. 055 High standards in quality and design are the basis for all KTR products. KTR couplings for I. C.-engines are subject to particularly strict criteria for the right balancing of vibrations in a drive system. The selection of couplings in combination with I.C.engines requires a certain basic knowledge and some experience. Thus, the selection of the wrong coupling may cause torsional vibrations in the drive system which would result in an early failure of the coupling and other drive components. EDP calculation programs for the coupling selection allow us to assure our customers of a safe and long-term operation of the couplings. The team of KTR design engineers is available for our customers to solve special problems. Many users of KTR couplings all over the world benefit from this

Applications for BoWex® FLE-PA couplings

know-how. Advice seeking to solve problems and support will characterize our efficiency in the future, too. In the range of I. C.-engines we distinguish between two coupling systems which are necessary for an optimum and safe adaptation to the market conditions for drives: – The torsionally stiff BoWex FLE-PA flange coupling for the use in mobile hydraulics for a direct drive of hydraulic pumps. – The highly flexible BoWex-ELASTIC HE coupling for drives subject to dangerous torsional vibrations.

Applications for BoWex-ELASTIC® couplings

wheel loaders

K 1,6

screw compressors

compact loaders

K 1,6

generators

hydraulic excavators

K 1,4

piston compressors

mobile cranes

K 1,6

splitterboxes

graders

K 1,5

suction pumps

vibration rollers

K 1,4

high-pressure pumps

fork lift trucks

K 1,6

reversing gears

concrete mixer trucks

K 1,3

sifting gears

concrete pumps

K 1,4

hydrodynamic converters

asphalt finishers

K 1,4

concrete cutters

K 1,4

road mortisers

K 1,4

For a selection according to the engine driving torque TAN a service factor K = 1,3 – 1,6 should be considered, depending on the load.

Coupling selection by means of torsional vibration calculation.

TKN ≥ TAN • K

Advice for assembly: The flange can be fixed to the engine flywheel by means of socket head cap screws according to DIN 912 quality 8.8 or hexagon head screws quality 8.8. We recommend screws are loctited in position.

88

Screw tightening torque FLE-PA Flange to flywheel

Screw tightening torque for spline clamping hubs quality 12.9 – DIN 912

M 8

25 Nm

42/48

M 10

M 10

49 Nm

65

M 12

49 Nm 86 Nm

M 12

86 Nm

80

M 16

295 Nm

BoWex® Curved-tooth gear couplings® Flange coupling for I. C.-engines Type FLE-PA - No. 016

 Flange coupling for connection to I. C.-engines and hydraulic pumps  Applicable to all hydrostatic drives of construction machines, harvesting machines, etc.  High torsional stiffness – operation free from resonance  Maintenance-free due to material combination nylon and steel  Nylon flange with high mechanical resistance and thermal strength (+ 130° C)  Extremely short assembly  Easy assembly by axial mounting  Special mounting flanges available Example of installation

z = number

z = number

Flange dimensions according to SAE J 620 [mm]

mounting long

mounting short

Size

Finish bore d min. max.

Pilot bore

Size

D3

61/2” 71/2”

D2

z

dL

215,9

200,02 6

9

241,3

222,25 8

9

8”

263,52 244,47 6

11

10”

314,32 295,27 8

11

111/2”

352,42 333,37 8

11

14”

466,72 438,15 8

14

BoWex FLE-PA for diesel engines with SAE connection; fixing of hub by means of end plate and screw

D

D1

l1

L3

L7

L8

L10

L11

Special length l1 max

6 1/2”

7 1/2”

8”

10”

Dimensions [mm]

Dimension to SAE (D3)

111/2”

14”

Max. axial displacement [mm]

42

–

20

42

65

100

42

33

42

20

13

40

bis 60

X

X

X

X

±2

48

–

20

48

68

100

50

41

50

20

13

48

bis 60

X

X

X

X

±2

T 48

12

20

48

68

100

50

38

45

20

13

46

–

X

X

X

X

65

–

25

65

96

132

55

45

54

27

21

51

bis 70

X

X

X

±2

T 65

15

25

65

96

132

55

45

54

27

21

51

–

X

X

X

±1

80

25

30

80

124

170

90

78

87

30

21

87

–

X

100

35

40

100

152

265

110

78

108

35

6

110

–

X

±1

±2 X

±2

Technical data of BoWex® FLE-PA – Torques / Weight / Mass moments of inertia / Torsion spring stiffness Torque TK [Nm] Size TKN

42

48

240

240

TK max

600

600

TKW

Weight / Hub with Mass moment max. of inertia J bore Ø

65

T 65

300

650

800

750

1600

2000

1200

3000

2050

5150

8”

10”

111/2”

14”

0,40

0,52

0,50

0,75

–

–

[kgm2]

0,0006

0,0025

0,0045

0,0048

0,0100

–

–

[kg]

0,790

0,40

0,52

0,50

0,75

–

–

[kgm ]

0,0007

0,0025

0,0045

0,0048

0,0100

–

–

[kg]

0,80

0,40

0,52

0,50

0,75

–

–

[kgm2]

0,0007

0,0025

0,0045

0,0048

0,0100

–

–

[kg]

2,300

–

–

0,80

0,93

1,15

–

[kgm2]

0,0044

–

–

0,0100

0,0127

0,0230

–

[kg]

2,400

–

–

–

0,93

1,15

–

[kgm ]

0,0044

–

–

–

0,0127

0,0230

–

[kg]

5,200

–

–

–

–

1,13

–

[kgm ]

0,0151

–

–

–

–

0,0225

–

[kg]

9,37

–

–

–

–

1,18

7,30

0,0401

–

–

–

–

0,021

0,21

120

120

150

325

400

600 2

100

71/2”

0,675

2

80

61/2”

[kg]

2

T 48

FLE-PA flanges acc. to SAE

1025 [kgm ] 2

Dynamic torsion spring stiffness with + 60° C –  = 0,4 [Nm/rad]

0,30 TKN 0,50 TKN 0,75 TKN 1,00 TKN 0,30 TKN 0,50 TKN 0,75 TKN 1,00 TKN 0,30 TKN 0,50 TKN 0,75 TKN 1,00 TKN 0,30 TKN 0,50 TKN 0,75 TKN 1,00 TKN 0,30 TKN 0,50 TKN 0,75 TKN 1,00 TKN 0,30 TKN 0,50 TKN 0,75 TKN 1,00 TKN 0,30 TKN 0,50 TKN 0,75 TKN 1,00 TKN

= = = = = = = = = = = = = = = = = = = = = = = = = = = =

35 x 103 75 x 103 105 x 103 125 x 103 35 x 103 75 x 103 105 x 103 125 x 103 40 x 103 86 x 103 120 x 103 143 x 103 65 x 103 145 x 103 210 x 103 255 x 103 80 x 103 180 x 103 265 x 103 320 x 103 190 x 103 410 x 103 580 x 103 700 x 103 355 x 103 750 x 103 1030 x 103 1240 x 103 89

BoWex BoWex-FLE-PA BoWex ELASTIC

For advanced drive technology

BoWex® Curved-tooth gear couplings® Flange coupling for I. C.-engines Selection according to SAE standard

For advanced drive technology

Selection of the coupling Determination of coupling size

Table 1

Connection dimension of coupling

Table 2

Hub design/Mounting length

Table 3

SAE - pump mounting flange Table 4

Mounting flange of hydraulic pump

Table 5

Coupling-mounting short (l3)

holes holes

z = number of holes

holes holes

z = number of holes

z = number

z = number

Flange size according to SAE 617

Coupling-mounting long (l7)

Spline hub

Clamping hub

Determination of mounting length l3 or l7 SAE shaft

l3 / l7 = G + LF – LW + lS

DIN shaft

l3 / l7 = G + LF – lX

Mounting instructions: The flange can be fastened to the engine flywheel by means of socket head cap screws according to DIN 912 quality 8.8 or by hexagon head screw quality 8.8. We recommend screws are loctited in position.

90

If axial fixing of the hub by means of an end plate and a screw is not possible for a pump shaft with involute spline, we would recommend to use our clamping hub.

Screw tightening torque of FLE-PA flange to flywheel

Screw tightening torque of spline clamping hubs quality 12.9 – DIN 912

M 8

25 Nm

42/48

M 10

49 Nm

M 10

49 Nm

65

M 12

86 Nm

M 12

86 Nm

80/100

M 16

295 Nm

BoWex® Curved-tooth gear couplings® Flange coupling for I. C.-engines Mounting dimensions according to SAE standard X

Selection of coupling for diesel engine Diesel engine power kW HP

Coupling size

4.

Flywheel to SAE G

Pump mounting flange LF

Driving shaft of pump

Housing dimensions according to SAE 617 [mm]

X

71/2” 30,15 1,19”

up to up to 65 90 kW 120 HP FLE-PA

8”

62

2,44”

10”

54

2,12”

8”

62

2,44”

10”

54

2,12”

weitere Größen auf Anfr. 111/2” 39,6

2. X

9,5 0,375”

Dimensions to SAE see tables 3 and 4

up to up to 42 a. 48 30 kW 40 HP FLE-PA

1,56”

9,5 0,375” 12,7

0,5”

See table 3 Hub design SAE J 498 / DIN 5480

61/2” 30,15 1,19”

5.

D3

D2

z = Number

6 1/2”

215,9

200,02

6

9

7 1/2”

241,3

222,25

8

9

263,52

244,47

6

11

10 ”

314,32

295,27

8

11

B

C

Z

447,68

489

466,7

12

M 10

TH 3/8”

SAE - 3

409,58

451

428,6

12

M 10

3/8”

SAE - 4

361,95

403

381,0

12

M 10

3/8”

SAE - 5

314,33

356

333,4

8

M 10

3/8”

Mounting flange for hydraulic pump to SAE [mm]

X

SAE – 2-hole-flange K-2

A1

AA

dL

8”

A

SAE - 2

SAESize

Dimensions of coupling flange according to SAE J 620 [mm] Size

SAE-Size

50,8 82,55

SAE – 4-hole-flange

M M8

Z

5/16”

2

A1

S-4

–

–

R

Z –

–

3/8”

4

M 12

1/2”

4

M 12

1/2”

4

152,40 228,6 M 16

5/8”

4

A

82,55 106,4 M 10

3/8”

2

B

101,60 146,0 M 12

1/2”

2

101,60 127

C

127,00 181,0 M 16

5/8”

2

127,00 162

D

152,40 228,6 M 16

3/4”

2

–

82,55 104,6 M 10

Selection of coupling hub – Determination of mounting length l3 or l7

X

42

SAE-16/32 DP pI

Dimensions of coupling hub [mm]

Clamping hub

Coupling size

Spline hub

Please mention type

Mounting length of coupling l3 or l7 Pump shaft to SAE J 498 and DIN 5480

BoWex®

Code to order coupling hub

Flange size 61/2” and 71/2”

Flange size 8”

Flange size 10”

Mounting K L

Mounting K L

Mounting K L

l3

l3

l7

Please mention coupling size

l1

l2

lS

l3

l7

x

–

35

–

30

40

l7

P 559101

x

42

–

33

33

42

P 660101

x

42

–

–

33

42

P 567101

x

42

–

27

33

42

P 660201

x

50

–

45

41

50

50

41

50

P 663301

x

55

–

48

54

45

54

P 663301

x

55

–

44

54

45

54

P 656201

3/4”

z=11 42

SAE-16/32 DP pB

7/8”

z=13, Kl.1 42

SAE-16/32 DP pBs

7/8”

z=13, Kl.5 42

SAE-16/32 DP pB-B

1” z=15

48 65

SAE-16/32 DP pA

13/8” z=21

65

SAE-12/24 DP pC

11/4” z=14

42 42

42 48

25 x 1,25 x 18

x

42

–

–

33

42

P 000205

x

42

–

–

33

42

P 500202

x

42

–

–

33

42

P 500203

50

–

–

41

50

50

–

–

41

50

x

46

–

–

37

46

x

55

–

–

60

–

–

55

–

–

x

55

–

–

–

64

–

x

55

–

–

DIN 5480

30 x 2 x 14 DIN 5480

x

48 48 65

x 35 x 2 x 16 DIN 5480

65 65

x 40 x 2 x 18

65

DIN 5480

65

45 x 2 x 21

65

Please photocopy dimension sheet and highlight all details required for design.

x

x

DIN 5480

P 000206 50

50

P 500203 P 000303

50

59

54

60

Orderform: FLE-PA coupling

50

45

54

P 000303

59

P 500301

54

P 000304

54

P 500302

69

60

69

P 000403

54

45

54

P 500401

SAE pump mounting flange

BoWex® 48 FLE-PA

7 1/2”

P 663301

SAE 4

B-2L

Coupling size

SAE connection of coupling

Code of coupling hub

Pump mounting flange for engine housing

Pump mounting to SAE 2 holes / 4 holes standard - metric fastening thread

Table 1

Table 2

Table 3

Table 4

Table 5

91

BoWex BoWex-FLE-PA BoWex ELASTIC

1.

For advanced drive technology

BoWex® Curved-tooth gear couplings® Special flange programme, deviations from the SAE standard

For advanced drive technology

Other connection flanges on request Fitting to Deutz 2011 diesel engines

Coupling size Engine type

BoWex® 48 FLE-PA, Ø 125 F2L511 – kit 1338

BoWex® 48 FLE-PA, Ø 215,9 F2-4L 2011

BoWex® 48 FLE-PA, Ø 263,52 F2-4L 2011

BoWex® T 48 FLE-PA, Ø 263,52 BF 4L 2011

ø320 z=8 – displaced by 4x30°

Fitting to Mitsubishi diesel engines

Coupling size Engine type

BoWex® 48 FLE-PA, Ø 208 K3B 31 DS

BoWex® 48 FLE-PA, Ø 338 / Ø 20 BoWex® 48 FLE-PA, Ø 338 / Ø40 S4E / 4GS2 4D Q 50

BoWex® 48 FLE-PA, Ø 130 K2B/C-K 3B/D/E-KE 75-K 4C/D/E

Fitting to Hatz diesel engines

Keyway width 6 JS9

Coupling size Engine type

92

BoWex® 48 FLE-PA, Ø 165 2L30/40H - 2M40 - 3L30/40/H

BoWex® 48 FLE-PA, Ø 152/2 E573/673/71/75/79 - E780/786/HE780

BoWex® 48 FLE-PA, Ø 96 Z 788/789/790

BoWex® M 42 2 G 30

BoWex® Curved-tooth gear couplings® Special flange programme, deviations from the SAE standard

For advanced drive technology

Coupling size Engine type

BoWex BoWex-FLE-PA BoWex ELASTIC

centering is effected by 3 center pins

centering is effected by 3 center pins

Fitting to VW Industrial diesel engines

centering is effected by 3 center pins

Other connection flanges on request

BoWex® 48 FLE-PA, Ø 220/1 122/126 A

BoWex® 48 FLE-PA, Ø 252 026.2 / 068.5 / 6 / A/D

BoWex® 48 FLE-PA, Ø 272 028.B / M 344

BoWex® 65 FLE-PA, Ø 268 Z 075.1 / 075.2

BoWex® 48 FLE-PA, Ø 152/1 Perkins 4.108

BoWex® 48 FLE-PA, Ø 152/3 504-2T / 2LR (BA 505 * DO2)

BoWex® 48 FLE-PA, Ø 118 FOCS-Serie

BoWex® 48 FLE-PA, Ø 140 LDW 1303/1503/2004

Fitting to Perkins Lombardini diesel engines

Coupling size Engine type

Fitting to Kubota diesel engines

Coupling size Engine type

BoWex® 48 FLE-PA, Ø 150 Super mini series

BoWex® 48 FLE-PA, Ø 188 Super 3 series

BoWex® 48 FLE-PA, Ø 135 Super 5 series

93

BoWex - ELASTIC ®

For advanced drive technology

Highly flexible flange couplings Type No. 055

 Flange coupling with flanges according to SAE and special dimensions for mounting to I. C.-engines  Easy assembly by axial plug-in without additional bolting  Compensation of misalignment on driving and driven side  Use of coupling hubs from the BoWex standard programme  Finish bore according to ISO fit H7, keyway to DIN 6885, sheet 1 (JS9) - inch bores, taper bores, spline clamping hub  Available in the hardness 40, 50 and 65 Shore A  Special dimensions and lengthened hubs on request

3

1

2

3

z = number z = number

z = number z = number

Components

1

Size

Bore d [mm]

Flange dimensions according to SAE J 620 [mm] Size

DA

61/2” 71/2”

z

d1

215,9

200,02 6

9

241,3

222,25 8

9

8”

263,52 244,47 6

11

10”

314,32 295,27 8

11

111/2”

352,42 333,37 8

11

14”

466,72 438,15 8

14

16”

517,5

489,0

8

14

18”

571,5

542,9

6

18

Design HE2

Flange connection to SAE J 620

Pilot Maxi- 61/2” 71/2” 8” 10” 111/2” 14” 16” 18” bored mum

Dimension [mm] D1

D3

l1

Design HE1

BoWexELASTIC®

2

D2

Z1 x M

l3

l2

4

45

D4

D5

D

Tip circle of hub

l1

65

78

42

LHE1 LHE2

Weight with pilot bored coupling

X

Mass moment of inertia JL JA [kgm2]

[kgm2]

1,90

0,0067

0,0016

2,20

0,0105

0,0016

2,45

0,0149

0,0016

2,25

0,011

0,0021

W 42 HE –

42

142 162

X

6

M6

146 180

70

50

42 HE X X 48 HE

65 HE

–

–

48

X 160 180

8

M6

4

45

164 198

68

78

50

78

50

2,55

0,015

0,0021

X

3,25

0,031

0,0021

X

5,30

0,037

0,0084

6,10

0,059

0,0084

9,00

0,181

0,0084

X

198 224

X

65

8

M8

5

55

204 244

96

110

55

85

62

X –

X 80 HE

25

80

X X X

G 80 HE

25

–

–

–

265 295,3

8

M10

6

265 295,3

8

M10

6

–

–

–

–

–

–

314,32 70

80 300 333,4

8

M10

90

352,4

80 X

266 316 124 145

6

302

124 145

126

74

7,93

0,0204

0,03

132

80

9,90

0,068

0,03

13,65

0,210

0,03

136

84

9,7

0,042

0,046

142

90

14,5

0,220

0,046

14,70

0,20

0,04

90

356

X 100 HE

35

100

–

–

–

–

4

–

–

–

–

–

80

350 412 152 176 110 150

82 16,0

0,28

0,04

186 103

33,0

0,274

0,292

416 466,7 192 225 140 192 109

34,1

0,387

0,292

192 109

37,0

0,846

0,292

X X 125 HE

45

X

125

X

Orderform:

94

–

438,1 16 M12

6

–

438,1 16 M12

6

98

BoWex-ELASTIC® 42

HE 1

40

8

70

U

Coupling size

Design

Elastomer hardness

Flange diameter DA acc. to SAE or special

Mounting length LHE

Unbored or with finish bore

BoWex - ELASTIC ®

For advanced drive technology

Highly flexible flange couplings Type HEW No. 065

 Highly flexible shaft coupling for the use on piston machines, electric motors, etc.  Easy assembly by axial plug-in - particularly suitable for blind assembly in closed connection housings  High compensation of misalignment on driving and driven side with only low restoring forces

 Elastomer parts available in the hardness 40, 50 and 65 Shore A for adaptation of torsional vibration of the drive system

L1

Design HEW 1

Coupling Size

z = number

z = number

Components

Design HEW 2

Mass moment of inertia

Bore

D

D2

zx M

D3

D4

DA

l1

l2

l3

l4

l5

l7

E

E1

LHEW1 LHEW2

d1 d2 max. max.

42 HEW

48

50

68

162

6

M6

48 HEW

48

55

68

180

8

M6

92

164

200

50

45

55

17

65 HEW

65

75

96

224

8

M8

125

204

245

70

55

75

28

80 HEW

80

80

124 295,27

8

M10

130

266

318

90

70

80

17

G 80 HEW

85

95

124 333,4

8

M10

145

302

358

90

80

90

22

85

146

180

50

45

50

15

JA [kgm2]

JL [kgm2]

Weight

[kg]

50

4

32

132

104

0,0016

0,0118

45

50

4

32

137

109

0,0021

0,0200

5,50

63

70

5

42

187

150

0,0084

0,0690

12,70

70

75

5

45

215

160

0,0300

0,2160

23,30

78

90

5

55

235

185

0,0460

0,2720

26,40

42

4,20

Other types: BoWex-ELASTIC® 48 HE for mounting to diesel engine V-belt side Perkins diesel engines

KHD diesel engines

BoWex-ELASTIC® type HEG for connection of cardan shaft

Space for change

Space for change of V-belt

of V-belt

Orderform:

BoWex-ELASTIC® 48

HEW

50

d1 = Ø 40

d2 = Ø 50

Coupling size

Design

Elastomer hardness

Finish bore of hub

Finish bore of flange

95

BoWex BoWex-FLE-PA BoWex ELASTIC

 Mounting flanges available for the use on diesel engine V-belt side (steering side)

BoWex - ELASTIC ®

For advanced drive technology

Highly flexible couplings Technical data Coupling sizes

W 42 HE

Elastomer hardness Shore A [Shore A]

40 Sh 40Sh 50Sh 65Sh 40Sh 50Sh 65Sh 40Sh 50Sh 65Sh 40Sh 50Sh 65Sh 40Sh 50Sh 65Sh 40Sh 50Sh 65Sh 40Sh 50Sh 70Sh

42 HE

48 HE

65 HE

80 HE

G 80 HE

100 HE

125 HE

Rated torque

TKN [Nm]

90

130 150

180

200

230

280

Maximum torque

TK max [Nm]

270

390 450

540

600

690

840 1050 1200 1500 2250 2850 3600 3750 4800 6000 6000 7500 9600 9000 12000 15000

Vibratory torque with 10 Hz

TKW [Nm]

27

36

54

60

69

84

Permissible damping power

PKW [W]

Max. perm. operating speed

nmax [min-1]

Twisting angle with rated torque

 TKN [°]

17

16

Dynamic torsion spring stiffness

Cdyn [Nm/rad]

365

550 850 2700 850 1300 3500 1600 2200 6000 4500 6500 18000 7500 12000 32000 12000 19000 48000 19000 30000 75000

Relative damping



0,6

0,6

0,8

1,2

0,6

0,8

1,2

0,6

0,8

1,2

0,6

0,8

1,2

0,6

0,8

1,2

0,6

0,8

1,2

0,6

0,8

1,2

Resonance 2 • ––––– factor VR 

VR

10,5

10,5 7,9

5,2

10,5

7,9

5,2

10,5

7,9

5,2

10,5

7,9

5,2

10,5

7,9

5,2

10,5

7,9

5,2

10,5

7,9

5,2

Radial spring stiffness

Cr [N/mm]

105

142 219

697

176

269

724

209

288

784

351

507 1404 476

762 2031 366

570 1200 617

974 2434

 Kr [mm]

1,0

1,1

1,0

0,5

1,2

1,1

0,5

1,6

1,5

0,7

1,8

1,7

0,8

2,0

1,9

0,9

2,2

2,0

1,0

2,5

2,3

1,1

 Kr max [mm]

3,2

3,6

3,3

1,5

3,8

3,5

1,7

5,1

4,7

2,2

5,7

5,3

2,4

6,0

5,7

2,7

6,5

6,0

3

7,5

6,9

3,3

 Kw 1500 min-1 [°] 3000 min-1

1,0 0,5

1,0 0,75 0,5 0,5 0,4 0,25

1,0 0,5

0,75 0,5 0,4 0,25

1,0 0,5

0,75 0,5 0,4 0,25

1,0 0,5

0,75 0,5 0,4 0,25

1,0 0,5

0,75 0,5 0,4 0,25

1,0 0,5

0,75 0,50 0,40 0,25

1,0 0,5

0,75 0,5 0,4 0,25

 Kw max [°]

1,5

1,5

1,5

1,5

1,5

1,5

1,5

1,5

±2

±2

±2

±2

±2

±3

±3

±3

Perm. rad. coupling misalignment with n = 1500 min-1 Max. perm. rad. coupl. misaligment for short-term start Perm. angular coupl. misalignment with n = Max. perm. angular coupl. misalignment for short-term start

60°C 80°C

Perm. axial coupling  Ka [mm] misalignment

45

350

105

400

120

500

150

750

225

950 1200 1250 1600 2000 2000 2500 3200 3000 4000 5000

285

360

375

480

600

600

750

960

900 1200 1500

15 5

20 6,5

27 9

45 15

90 30

135 45

160 53

180 60

6200

6200

5600

4500

3600

3000

2700

2300

13

8

16

13

8

16

13

8

14

13

6

12

10

6

12

10

6

12

10

6

The technical data mentioned apply for an ambient temperature of T = 60° C

Displacements For other operating speeds or higher operating temperatures the permissible radial displacement is calculated as follows:

∆ Kr perm. = ∆ Kr • St •

1500 –––––– nX

Radial displacement ∆ Kr

Angular displacement ∆ Kw

Axial displacement ∆ Ka

Assembly of elastomer / flange W 42/42 48 65 80 G 80 HE countersunk screw with hexagon socket DIN 7991 6x 8x 8x 8x 8x HEW capscrew with hexagon socket DIN 912 M6x16-10.9 M6x16-10.9 M8x20-10.9 M10x25-10.9 M10x25-10.9 Hexagon nut DIN 934 / yellow chromated M6-10 M6-10 M8-10 M10-10 M10-10 Tightening torque 14 Nm 14 Nm 35 Nm 69 Nm 69 Nm

100/125 16 x M12-25 M12-10 86 Nm

We recommend screws are loctited in position. Note: Please only use nuts and screws without grease. Do not use loctite on the rubber surfaces. 96

BoWex - ELASTIC ®

For advanced drive technology

Highly flexible couplings Coupling selection 1.

BoWex-ELASTIC couplings should be selected in accordance with DIN 740 part 2. The coupling must be sufficiently sized to ensure that the maximum permissible coupling load is not exceeded in any operating condition. It is therefore necessary to compare the actual loads with the permissible rated parameters of the coupling according to tables 1.1 - 1.4 listed below. For drives subject to dangerous torsional vibrations it is necessary for a safe operation to review the drive by means of a torsional vibration calculation. TKN ≥ TN • St PAN/LN [kW] TN [Nm] = 9550 • –––––––––––– n [1/min]

1.2 Load by torque shocks The maximum permissible torque of the coupling must, at all operating temperatures, be as high as the operational peak torque TS, taking into a ccount the shock frequency Z.

TK max ≥ TS • Sz • St Shock on driving side TS = TAS • MA • SA Shock on driven side TS = TLS • ML • SL JL MA = ––––––– JA + JL

JA ML = ––––––– JA + JL

1.3 Passing through resonance range The peak torque TS arising when the resonance range is passed through must not exceed the maximum torque Tkmax of the coupling, taking into account the temperature. 1.4 Load by vibratory torque shocks The permissible vibratory torque TKW of the coupling, at the operating speed and ambient temperature, must not be exceeded by the biggest periodical vibratory torque TW. With operating frequencies f > 10 Hz the heat produced by damping in the elastomer is considered as damping power PW.

Starting factor SZ

– 40°C + 60°C

+ 70°C

+ 80°C

Starting frequency / h

1,0

1,2

1,6

SZ

St table No. 1

TKW ≥ TW • St

PKW ≥ PW

The permissible damping power PKW of the coupling depends on the ambient temperature and must not be exceeded by the actual damping power produced.

With knowledge of mass distribution, direction and type of shock it is possible to calculate the peak torque TS. If the moments of inertia are unknown, MA or ML = 1.

Temperature factor St

TK max ≥ TS • SZ • St

BoWex BoWex-FLE-PA BoWex ELASTIC

1.1 Load by rated torque The permissible rated torque TKN of the coupling must, at all operating temperatures, be at least as high as the rated torque TN of the machine.

Shock factor SA / SL

< 10

> 10 < 60

> 60 < 120

> 120

1,0

1,5

2,0

on request

moderate shocks average shocks

1,5 SA /SL

heavy shocks

table No. 2

1,8 2,5

table No. 3

Technical data for coupling selection / Torsional vibration calculation Driving side diesel

gas

engine type

straight-type engine

V-engine/angle

2-cycles

4-cycles

degrees

piston Ø

nominal torque

TAN

Nm

peak torque

TAS

Nm

stroke

mm

mm

No. of cylinders

speed range n: idle speed nmin. operational

1/min.

nmax. operational

1/min.

mass moment of inertia JA or flywheel effect GDA2 for flywheel

JA

kgm2

or

GD2A

kp m2

driving gear JA

kgm2

or

GD2A

kp m2

Driven side hydraulic pump piston compressor

splitterbox

generator

No. of cylinders

order of cylinders

screw compressor tangential force diagram

manufacturer/type nominal torque mass moment of inertia

TLN JL

Nm Nm kgm22 kgm

peak torque or or

flywheel effect GD 2L

Nm kpm2 97

MONOLASTIC®

For advanced drive technology

Single-part, flexible flange couplings for I. C.-engines

 MONOLASTIC - for the drive of diesel engine/hydraulic pump up to 30 kW  Single-part design with flange fastening by three bolts (sizes 28 and 32)  Flange connection according to SAE 6 1/2" to 10" (size 50)  Easy assembly of coupling  Axial plug-in in combination with the pump shaft  Compensation of high radial and angular displacements  Available for pump shafts according to SAE and DIN

Size 50

z = number

z = number

Size 28 and 32

Size

28

32

50

Elastomer hardness (Shore A)

Torque [Nm]

dimensions [mm]

TKN

TKmax

TKW

50

50

100

25

65

70

175

35

70

100

300

50

50

100

200

50

65

160

400

80

50

260

520

130

65

300

750

150

d

D

D1

D2

z

dL

D3

L1

L2

L3

L4

L5

25

42

115

100

3

10

124

40

2

32

39

38

32

50

140

125

3

12

150

42

2

42

43

38

32

50

167

42

2

24

30

38

SAE connection 61/2”, 71/2”, 8”, 10”

Technical data Size

28

32

50

98

Elastomer hardness [Shore A ]

Cdyn [Nm/rad]

50

450

65

800

70

1200

0,50

50

750

0,80

65

1600

50

3500

65

10000

Permissible damping power with 60° C PKW [W]

Permissible radial Permissible angular displacement displacement with 2200 min-1 with 2200 min-1 KR [mm] KW [mm]

0,80 15

25

0,60

0,60

0,60

Max. permissible operating speed nmax [min-1]

150 1

300

6000

400 200 1

0,80 35

Radial spring stiffness Cr [N/mm]

400

6000

650 1

1300

6000

Flange couplings for I.C.-engines Additional Information Use of PC with special software for coupling selection

Application: 3-cylinder diesel engine screw compressor Use: BoWex-ELASTIC 42 HE - 50 Shore A Calculation: Acceleration from 300 min-1 to 2700 min-1

For advanced drive technology

KTR makes use of special simulation calculation programs for the coupling selection and the torsional vibration determination of the drive system. This ensures a resonancefree operation of the machine, along with a safe, long-lasting operation of the drive components. This is part of the usual KTR standard service.

Use of CAD and FEM systems for development and construction

Apart from new products the team of KTR design engineers develops specific drive solutions for customers which are adapted to your application in detail.

R & D center Test benches

KTR has test benches in its research and development center with servo-hydraulic and electronic control and data processing by PC. A special software which was developped for KTR ensures a short-term and detailed evaluation.

For that purpose we make use of latest 3D-CAD and FEM equipment, ensuring an optimum and quick service.

In total ten static and dynamic test benches of different performance are installed in the R & D center. These test benches are used to test performance, capacity of resistance to wear, etc. of KTR drive elements. Apart from that serial tests are performed to ensure a constant quality standard of KTR products.

99

BoWex BoWex-FLE-PA BoWex ELASTIC

BoWex® Curved-tooth gear couplings®

100