Tsubaki ECHT-FLEX NEF130W Manual Download Page 38

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INSTALLATION

Centering Adjustment

①

Single and Spacer Type Couplings

The more accurate the initial centering of the coupling, the less stress it will experience during operation. Wear of the shaft bearing, depressions in the mounting surface,
changes in conditions affected by temperature and vibration can reduce the life of the coupling and your equipment. Center accurately and conduct periodic adjustment
according to the following procedure.

Angular misalignment

Single Type

Spacer Type

Single Type

Spacer Type

L: Disk center distance

L: Disk center distance = J - E

Hub face distance

Note: The single type coupling cannot absorb parallel misalignment (parallel misalignment of the shaft center).

misalignment

The allowable angular misalignment, parallel misalignment and hub face distance misalignment all act in correlation to each other. When one increases, the others decrease.
These factors must, therefore, be considered together. Perform the initial centering adjustment carefully so that the following recommended value is not exceeded.

Model No.

Angular Misalignment

Parallel

Misalignment

（

）

Hub Face Distance

Misalignment

（

）

θa

（

）

Dial Reading

T.I.R.mm

NEF 04 W

0.5

0.58

0.43

-2

6.1

0.25

NEF 10 W

0.5

0.71

0.43

-2

6.6

0.25

NEF 18 W

0.5

0.81

0.43

-2

8.3

0.25

NEF 25 W

0.5

0.91

0.43

-2

11.2

0.25

NEF 45 W

0.5

1.10

0.43

-2

11.7

0.25

NEF 80 W

0.5

1.25

0.43

-2

11.7

0.25

NEF 130 W

0.5

1.46

0.43

-2

16.8

0.25

NEF 210 W

0.5

1.69

0.43

-2

17.0

0.25

NEF 340 W

0.5

1.86

0.43

-2

21.6

0.25

NEF 540 W

0.5

2.14

0.43

-2

23.9

0.25

NEF 700 W

0.5

2.41

0.43

-2

27.2

0.25

NEH 09 W

0.35

1.68

0.31

-2

19.0

0.25

NEH 14 W

0.25

1.20

0.22

-2

19.0

0.25

NEH 20 W

0.25

1.34

0.22

-2

19.0

0.25

NEH 30 W

0.25

1.50

0.22

-2

21.5

0.25

NEH 41 W

0.25

1.64

0.22

-2

24.0

0.25

NEH 55 W

0.25

1.94

0.22

-2

29.5

0.25

NEH 70 W

0.25

2.05

0.22

-2

31.3

0.25

NEH 90 W

0.25

2.23

0.22

-2

32.0

0.25

NEH 110 W

0.25

2.43

0.22

-2

32.5

0.25

NEH 135 W

0.25

2.56

0.22

-2

34.0

0.25

NEH 150 W

0.25

2.74

0.22

-2

34.5

0.25

NEH 180 W

0.25

2.85

0.22

-2

35.5

0.25

Table 1 Recommended Centering Value (Single Type Coupling)

②

Long Spacer Type

Table 2 Recommended Centering Value (Long Spacer Types)

Flange-to-flange dimensions

Allowable parallel misalignment

L: Disk center distance = J - E

E: Hub face distance
J: Flange face distance

Model No.

Angular Misalignment

Hub Face

Distance Misalignment

（

）

1/2θa

（

）

Dial Reading

T.I.R.mm

Single

ype

NEF 02

0.25

NEF 04

0.25

0.29

NEF 10

0.25

0.35

NEF 18

0.25

0.40

NEF 25

0.25

0.45

NEF 45

0.25

0.55

NEF 80

0.25

0.62

NEF 130

0.25

0.73

NEF 210

0.25

0.84

NEF 340

0.25

0.93

NEF 540

0.25

1.07

NEF 700

0.25

1.20

Parallel

Misalignment

（

）

Errors

cannot

absorbed.

4.9

0.25

6.1

0.25

6.6

0.25

8.3

0.25

11.2

0.25

11.7

0.25

11.7

0.25

16.8

0.25

17.0

0.25

21.6

0.25

23.9

0.25

27.2

0.25

Recommended Centering Value (Spacer Type Coupling)

Model No.

Angular Misalignment

Hub Face

Distance Misalignment

（

）

θa

（

）

Dial Reading

T.I.R.mm

Spacer

Type

NEF 02 W

0.5

0.50

NEF 04 W

0.5

0.58

NEF 10 W

0.5

0.71

NEF 18 W

0.5

0.81

NEF 25 W

0.5

0.91

NEF 45 W

0.5

1.10

NEF 80 W

0.5

1.25

NEF 130 W

0.5

1.46

NEF 210 W

0.5

1.69

NEF 340 W

0.5

1.86

NEF 540 W

0.5

2.14

NEF 700 W

0.5

2.41

NEH 09 W

0.35

1.68

NEH 14 W

0.25

1.20

NEH 20 W

0.25

1.34

NEH 30 W

0.25

1.50

NEH 41 W

0.25

1.64

NEH 55 W

0.25

1.94

NEH 70 W

0.25

2.05

NEH 90 W

0.25

2.23

NEH110 W

0.25

2.43

NEH135 W

0.25

2.56

NEH180 W

0.25

2.85

Parallel

Misalignment

（

）

4.9

0.25

6.1

0.25

6.6

0.25

8.3

0.25

11.2

0.25

11.7

0.25

11.7

0.25

16.8

0.25

17.0

0.25

21.6

0.25

23.9

0.25

27.2

0.25

19.0

0.25

19.0

0.25

19.0

0.25

21.5

0.25

24.0

0.25

29.5

0.25

31.3

0.25

32.0

0.25

32.5

0.25

34.0

0.25

35.5

0.25

NEH150 W

0.25

2.74

34.5

0.25

0.075
0.13
0.14
0.17
0.18
0.22
0.25
0.27
0.31
0.33
0.37
0.46
0.30
0.30
0.33
0.36
0.43
0.50
0.51
0.55
0.55
0.60
0.65
0.70

* The Single Type Coupling cannot absorb parallel misalignment, so the

parallel misalignment should be set to within 0.02 mm during centering
adjustment.

Summary of Contents for ECHT-FLEX NEF130W

Page 1: ...EMER FLEX COUPLING...

Page 2: ...es NEF Series Spacer Type Long Spacer Type Stocked Long Spacer Type Short Spacer Type Single Type Clamping Method Power Lock Method NEH Series Other Series INSTALLATION BORE SPECIFICATIONS P 2 P 3 4 P...

Page 3: ...distance between shaft ends is large With Single Type a single disk absorbs angular misalignment and axial displacement See P 23 25 See P 32 33 See P 34 36 NEF Clamping Method NEF Power Lock Method N...

Page 4: ...s up to excellent flexible coupling performance for reliable torque transmission and absorption of shaft misalignment Tsubaki offers a full line up of EMER FLEX couplings from the small size precision...

Page 5: ...sk design achieves high torsional stiffness and axial flexibility 13 Easy Installation The Power Lock Type is equipped with an anti rotation hole in the pressure flange so tightening bolts is made eas...

Page 6: ...r A Washer B Washer B Washer A Washer B Spacer Reamer bolt U nut U nut U nut NEF Series Power Lock Type Single Type Spacer Type NES Series Hub Washer Washer Washer Washer Disk Hexagon socket head bolt...

Page 7: ...Type Washer A Washer A Washer B Washer B Spacer Reamer bolt U nut U nut Hub Disk Hub NEH Series Long Spacer Type Overload washer Overload washer The disk bush and collar are all integrated Collar Bush...

Page 8: ...reaser Generator Emer Flex Coupling Robots Emer Flex Coupling NES Series Servo motor Ball screw Lifters Emer Flex Coupling Emer Flex Coupling LINIPOWER Jack Printing presses Elevator type vertical par...

Page 9: ...8 EMER FLEX Example of Mounting Example of Mounting...

Page 10: ...Inertia High Moment of Inertia 4 Cylinder 6 Cylinder 8 Cylinder Constant Load 1 5 1 75 1 75 2 0 2 5 4 0 2 0 2 5 1 5 2 0 Mid Level Variable Load 2 0 2 5 2 5 3 0 4 0 5 0 2 5 3 5 2 0 3 0 Heavy Variable...

Page 11: ...ounting a balance weight to the spacer pipe periphery The spacer with a balance weight is shown below The balance weight mounting position and quantity vary depending on operating conditions Be carefu...

Page 12: ...2 6 NES800 80 8 2 NES1300 130 13 NEF02 19 6 2 20 25 NEF04 39 2 4 23 28 NEF10 98 10 32 40 NEF18 176 18 35 42 NEF25 245 25 42 48 NEF45 441 45 50 60 NEF80 784 80 60 70 NEF130 1270 130 74 80 NEF210 2060...

Page 13: ...40 NEF540 NEF700 Model No Standard Hub Extended Dia Hub Long Hub Square Hub Note 1 Standard Hub Long Hub Extended Dia Hub Square Hub K Standard Hub Long Hub Extended Dia Hub Square Hub Rough Bore d B...

Page 14: ...3 76 97 160 320 510 1200 0 32 10 6 0 90 10 6 2 7 10 6 8 0 10 6 14 10 6 21 10 6 47 10 6 140 10 6 320 10 6 1100 10 6 0 01 0 04 0 11 0 32 0 54 0 84 1 9 5 7 13 45 210 21 420 43 1000 100 1600 160 2100 210...

Page 15: ...30 28 80 130 30 80 130 32 130 35 130 NES07 NES15 NES20 NES30 NES50 NES70 NES100 NES250 NES800 NES1300 mm Standard Bore Diameter and Transmission Torque for Each Bore Diameter NES30S N10C X N12C Series...

Page 16: ...d dia hub Reamer bolt Washer A Washer B Disk U nut Spacer Set screw Extended Dia Hub Long Hub NEF W K X L Long Hub Long Hub NEF W L X L Extended dia hub Long hub Reamer bolt Washer A Washer B Disk U n...

Page 17: ...0 4 104 29 4 3 89 8 104 4 119 NEF18W 176 18 18000 12 14 35 35 42 7 84 104 0 8 104 63 7 6 5 104 4 120 7 137 NEF25W 245 25 15000 15 18 42 42 48 12 7 104 1 3 104 78 4 8 120 136 5 153 NEF45W 441 45 13000...

Page 18: ...nt of inertia and GD2 at maximum bore diameter GD2 W1 d1 J J1 G1 Unit kgf cm2 Moment of inertia W1 d2 J J1 G2 Unit kg cm2 This formula applies to cases where dimension J exceeds J1 Unit cm N 3 N 2 N 1...

Page 19: ...NEH 09W 6 8820 900 70 111 110 144 19 161 159 1 4 3 2 NEH 14W 8 13700 1400 70 111 127 155 19 161 159 1 2 1 NEH 20W 8 19600 2000 75 133 146 178 19 193 190 7 1 2 4 NEH 30W 8 29400 3000 75 152 165 201 21...

Page 20: ...oment of Inertia kg cm2 GD2 k f g cm2 Allowable Misalignment Angular Misalignment deg Parallel Misalignment NEF 25W JS127 245 25 15 42 33 5 45 11 2 61 104 194 9 47 58 21 82 3 5 43 8 175 2 2 02 NEF340W...

Page 21: ...llowable Torque N m kgf m 39 2 4 98 10 176 18 245 25 441 45 784 80 1270 130 2060 210 3330 340 5290 540 6860 700 Rough bore d 8 10 12 15 15 15 25 25 45 50 70 Max Bore Dia Keyway 23 32 35 42 50 60 74 83...

Page 22: ...Washer A Washer B Disk U nut Set screw Extended Dia Hub Long Hub NEF S K X L Extended dia hub Long hub Reamer bolt Washer A Washer B Disk U nut Set screw Long Hub Long Hub NEF S L X L Long hub Reamer...

Page 23: ...6 78 2 94 7 NEF45S 441 45 13000 15 25 50 50 60 44 1 104 4 5 104 219 22 3 93 9 112 8 NEF80S 784 80 12000 15 30 60 60 70 78 4 104 8 104 307 31 3 107 3 129 5 NEF130S 1270 130 10000 25 35 70 74 80 14 7 10...

Page 24: ...y of the coupling No balance adjustment has been conducted 2 The circled standard stock bore diameters are for the standard hubs the diameters in squares are for the square hub and unmarked diameters...

Page 25: ...NEF Clamp Method Single Type Couplings Notes 1 The maximum rotation speed depends on the transmission capacity of the coupling No balance adjustment has been conducted 2 The circled standard stock bo...

Page 26: ...4 02 0 41 4 02 0 41 4 02 0 41 4 02 0 41 4 02 0 41 4 02 0 41 4 02 0 41 4 02 0 41 17 6 1 8 30 1 3 07 34 3 3 5 37 2 3 8 40 2 4 1 42 1 4 3 54 9 5 6 57 8 5 9 62 0 6 33 65 7 6 7 68 0 6 94 13 7 1 40 13 7 1 4...

Page 27: ...iameter 5 The allowable axial displacement is based on the assumption that the angular misalignment is 0 6 NEF45 or larger sizes can be also manufactured with a Power Lock Contact for drawings Model N...

Page 28: ...104 20 6 2 1 97 8 25 4 8 NEF10W 98 10 20000 10 14 35 35 32 3 92 104 0 4 104 29 4 3 102 8 25 4 10 NEF18W 176 18 18000 12 14 35 35 35 7 84 104 0 8 104 63 7 6 5 117 4 28 7 10 Model No K Q R U Allowable...

Page 29: ...the direction of arrows Z Z Disk bore diameter Z NEF10S NEF18S NEF25S 2 Q x R Drilled Square hub Reamer bolt Disk Washer A Washer B U nut Power Lock Pressure flange Pressure bolt NEF04S 2 Q x R Drill...

Page 30: ...owable Torque N m kgf m Max Rotation Speed r min Rough Bore Standard Stock Shaft Dia Max Shaft Dia Torsional Stiffness N m rad kgf m rad A DD F NEF25W 245 25 15000 15 18 42 42 12 7 104 1 3 104 150 45...

Page 31: ...cm2 10 22 M6 x 22r 10 9 4 pcs 0 14 0 48 1 9 14 35 M6 x 22r 10 9 8 pcs 0 40 2 75 11 18 42 M8 x 28r 10 9 8 pcs 0 80 8 25 33 Unit mm Model No A B C Finished Bore Dia G L N M Q R di NEF210 F 29 9 20 147 1...

Page 32: ...9 1 11 10 9 1 11 14 8 1 51 14 8 1 5 1 55 9 5 7 56 8 5 8 56 8 5 8 56 8 5 8 55 9 5 7 20 11 1 1 13 11 1 1 13 11 1 1 13 15 1 1 54 15 1 1 54 18 7 1 91 1 61 7 6 3 62 7 6 4 62 7 6 4 62 7 6 4 61 7 6 3 62 7 6...

Page 33: ...H 20W C 8 19600 2000 4300 75 133 12 7 106 1 3 106 1370 140 NEH 30W C 8 29400 3000 3900 75 152 20 6 106 2 1 106 1700 183 NEH 41W C 8 40200 4100 3700 120 165 25 5 106 2 6 106 1880 192 NEH 55W C 8 53900...

Page 34: ...5 200 21 5 218 300 NEH41W U 40200 4100 3700 120 165 80 224 2 55 107 2 6 106 1880 192 653 790 171 230 24 240 324 Notes 1 All sizes are custom made 2 When placing an order contact for drawings Model No...

Page 35: ...H J K Equivalent Gear Coupling JIS Model Max Shaft Dia Torque N m kgf m NEH 41G 40200 4100 2500 149 376 180 213 16 462 355 160 24500 2500 NEF 45G 441 45 5000 32 88 40 47 8 161 100 25 196 20 NEF 80G 7...

Page 36: ...35 35 NEW PRODUCTS...

Page 37: ...ft diameters In addition to the above other types of Power Locks are also available Contact for drawings Single Hub Insertion Type Dual Hub Insertion Type Spacer Type couplings are suitable for applic...

Page 38: ...25 NEH 90 W 0 25 2 23 L 0 22 10 2 32 0 0 25 NEH 110 W 0 25 2 43 L 0 22 10 2 32 5 0 25 NEH135 W 0 25 2 56 L 0 22 10 2 34 0 0 25 NEH150 W 0 25 2 74 L 0 22 10 2 34 5 0 25 NEH180 W 0 25 2 85 L 0 22 10 2...

Page 39: ...consideration in advance so that dimension E can be adjusted Adjusting the angular misalignment a With a dial gauge fixed to one of the hubs as shown above rotate the hub to find the minimum indicati...

Page 40: ...e is applied to the hub the disk may warp and become fixed in that warped state Tighten the reamer bolts securely with the torque specified in the table above Pressure Bolt Tightening Torque The press...

Page 41: ...e capacity of the Single Type Coupling to absorb a parallel misalignment is extremely small Therefore the centering adjustment should be conducted mainly to correct any angular misalignment and axial...

Page 42: ...H Series Spacer Type Single Type General Matching of the Keyway Angles When machining shaft bores atTsubaki the angle of the keyway in the right and left hubs may be misaligned as shown above Hub keyw...

Page 43: ...2 12 NEF210 M10 10 M10 10 M10 10 M10 10 M10 10 M10 10 M12 12 NEF340 M12 12 M12 12 M12 12 NEF540 M12 12 NEF700 M12 12 Model No Standard Shaft Bore Diameter 55 57 60 63 70 71 75 80 85 90 95 100 105 110...

Page 44: ...7 70 71 75 80 85 90 95 100 110 120 125 130 140 150 160 P7 170 180 190 200 210 220 Keyway Dimension Table New JIS JIS B1301 1996 Shaft Bore Machining Keyway Dimensions 1 Tolerance for Shaft and Bore t2...

Page 45: ...8 032E 28H7 0 021 0 32H7 0 025 0 9 3 15 6 21 9 28 2 31 8 30 PL030 035E 30H7 0 021 0 35H7 0 025 0 9 3 15 6 21 9 30 2 34 8 32 PL032 036E 32H7 0 025 0 36H7 0 025 0 9 3 15 6 21 9 32 2 35 8 35 PL035 040E 3...

Page 46: ...an M10 JIS Type 3 nut is used for the shaft end the servo motor shaft end is recessed from the hub end face by 2 9 mm In this case the number of available Power Locks is as listed on the right Shaft...

Page 47: ...of anti loosening agent to the hexagonal socket head cap screws Operation Avoid contact with any rotating parts coupling shaft etc during operations Rotating parts can catch approaching objects and ca...

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