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Flexible Couplings - zero backlash, EKL series.

R+W

Features
Short overall length
Easy mounting
Vibration damping

Design
Two concentrically machined hubs with curved jaws and clamping screws, with calibrated preloaded insert

Material
Hubs: high strength aluminum
Elastomer: wear resistant thermanally stable TPU, available in 3 hardness levels

Advantage
Smooth running and reliable transmission with absorption of vibration and shock

Size 800 is available on special request.

Part Number

Configured Part Number is shown.

Product Specifications
Part Numbers

: 30; 45; 60

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Part Number
EKL/2/A/3/3
EKL/2/A/3/4
EKL/2/A/3/5
EKL/2/A/3/6
EKL/2/A/3/7
EKL/2/A/3/8
EKL/2/A/4/4
EKL/2/A/4/5
EKL/2/A/4/6
EKL/2/A/4/7
EKL/2/A/4/8
EKL/2/A/5/5
EKL/2/A/5/6
EKL/2/A/5/7
EKL/2/A/5/8
EKL/2/A/6/6
EKL/2/A/6/7
EKL/2/A/6/8
EKL/2/A/7/7
EKL/2/A/7/8
EKL/2/A/8/8
EKL/2/B/3/3
EKL/2/B/3/4
EKL/2/B/3/5
EKL/2/B/3/6
EKL/2/B/3/7
EKL/2/B/3/8
EKL/2/B/4/4
EKL/2/B/4/5
EKL/2/B/4/6
EKL/2/B/4/7
EKL/2/B/4/8
EKL/2/B/5/5
EKL/2/B/5/6
EKL/2/B/5/7
EKL/2/B/5/8
EKL/2/B/6/6
EKL/2/B/6/7
EKL/2/B/6/8
EKL/2/B/7/7
EKL/2/B/7/8
EKL/2/B/8/8
EKL/2/C/3/3
EKL/2/C/3/4
EKL/2/C/3/5
EKL/2/C/3/6
EKL/2/C/3/7
EKL/2/C/3/8
EKL/2/C/4/4
EKL/2/C/4/5
EKL/2/C/4/6
EKL/2/C/4/7
EKL/2/C/4/8
EKL/2/C/5/5
EKL/2/C/5/6
EKL/2/C/5/7
EKL/2/C/5/8
EKL/2/C/6/6
EKL/2/C/6/7
EKL/2/C/6/8

Minimum order quantity	Days to Ship	Allowable Torque Range (N•m)	For Shaft Size D1 (mm)	For Shaft Size D2 (mm)	Outer Dia. A (Ø)	Overall Length W (mm)	Max. Rotational Speed Range (r/min)	Allowable Torque (N•m)	Max. Rotational Speed (r/min)	Allowable Angular Misalignment (deg)	Allowable Lateral Misalignment Range (mm)	Allowable Lateral Misalignment (mm)	Operating Temperature Range (℃)	Allowable Axial Misalignment (±) (mm)	Moment of Inertia (kg･m²)	Fit Length (mm) (mm)	Torsional Stiffness (N-m/rad) (N-m/rad)	Tightening Torque of the Fastening Screw (N-m) (N-m)	Size	Elastomer Insert
1 Piece(s)	8 Days	10.01~20.00	3	3	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	3	4	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	3	5	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	3	6	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	21 Days	10.01~20.00	3	7	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	3	8	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	4	4	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	4	5	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	4	6	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	21 Days	10.01~20.00	4	7	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	4	8	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	5 Days	10.01~20.00	5	5	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	5	6	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	21 Days	10.01~20.00	5	7	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	5	8	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	6	6	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	21 Days	10.01~20.00	6	7	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	6	8	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	21 Days	10.01~20.00	7	7	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	21 Days	10.01~20.00	7	8	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	8	8	16	20	10001~78000	4	15000	1	0.02~0.2	0.08	-30～100	1	0.0000006	6	50	0.6	2	A - Shore 98A
1 Piece(s)	8 Days	10.01~20.00	3	3	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	3	4	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	3	5	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	3	6	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	21 Days	10.01~20.00	3	7	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	3	8	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	4	4	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	4	5	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	4	6	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	21 Days	10.01~20.00	4	7	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	4	8	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	5 Days	10.01~20.00	5	5	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	5	6	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	21 Days	10.01~20.00	5	7	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	5	8	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	6	6	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	21 Days	10.01~20.00	6	7	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	6	8	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	21 Days	10.01~20.00	7	7	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	21 Days	10.01~20.00	7	8	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	8	8	16	20	10001~78000	4.8	15000	0.8	0.02~0.2	0.06	-30～120	1	0.0000006	6	115	0.6	2	B - Shore 64D
1 Piece(s)	8 Days	10.01~20.00	3	3	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	3	4	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	3	5	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	3	6	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	21 Days	10.01~20.00	3	7	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	3	8	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	4	4	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	4	5	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	4	6	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	21 Days	10.01~20.00	4	7	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	4	8	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	5 Days	10.01~20.00	5	5	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	5 Days	10.01~20.00	5	6	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	21 Days	10.01~20.00	5	7	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	5	8	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	5 Days	10.01~20.00	6	6	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	21 Days	10.01~20.00	6	7	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A
1 Piece(s)	8 Days	10.01~20.00	6	8	16	20	10001~78000	1	15000	1.2	0.02~0.2	0.2	-30～100	1	0.0000006	6	17	0.6	2	C - Shore 80A

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Basic Information

Type	Jaw Type	Application	Servo Motor / Stepping Motor	Feature	No Backlash
Body Material	Aluminum	Buffer Part Material	Polyurethane

Configure

4,614 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Allowable Torque Range(N•m)
10.01~20.00

20.01~50.00

50.01~100.00

100~less than 500

500~less than 1000

1000~less than 5000
Clear
For Shaft Size D1(mm)
3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60
Clear
For Shaft Size D2(mm)
3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60
Clear
Outer Dia. A(Ø)
16

25

32

42

56

66.5

82

102
Clear
Overall Length W(mm)
20

26

32

50

58

62

86

94
Clear
Max. Rotational Speed Range(r/min)
4001~10000

10001~78000
Clear
Allowable Torque(N•m)
1

4

4.8

6

12

18

24

25

32

34

35

42

85

120

150

170

190

320

400

650

810

1060

1350
Clear
Max. Rotational Speed(r/min)
8000

9000

10000

11000

12500

13000

15000
Clear
Allowable Angular Misalignment(deg)
0.8

1

1.2
Clear
Allowable Lateral Misalignment Range(mm)
0.02~0.2

0.21~0.40
Clear
Allowable Lateral Misalignment(mm)
0.06

0.08

0.1

0.12

0.14

0.15

0.18

0.2

0.22

0.25

0.3

0.35
Clear
Fit Length (mm)(mm)
6

8

10.3

17

20

21

31

34
Clear
Torsional Stiffness (N-m/rad)(N-m/rad)
17

50

53

90

115

150

260

350

520

600

1140

1400

2000

2500

3000

3290

4120

4970

9750

10600

12400

15100

18000

27000
Clear
Tightening Torque of the Fastening Screw (N-m)(N-m)
0.6

2

4

8

15

35

70

120
Clear
Size
2

5

10

20

60

150

300

450
Clear
Elastomer Insert
- B - Shore 64D
- C - Shore 80A
- A - Shore 98A
Clear
CAD
- 3D
Clear

Days to Ship

All

5 Days or Less

8 Days or Less

21 Days or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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Flexible Couplings - zero backlash, EKL series.

Basic Information

Configure

Specification/Dimensions

Allowable Torque Range(N•m)

For Shaft Size D1(mm)

For Shaft Size D2(mm)

Outer Dia. A(Ø)

Overall Length W(mm)

Max. Rotational Speed Range(r/min)

Allowable Torque(N•m)

Max. Rotational Speed(r/min)

Allowable Angular Misalignment(deg)

Allowable Lateral Misalignment Range(mm)

Allowable Lateral Misalignment(mm)

Fit Length (mm)(mm)

Torsional Stiffness (N-m/rad)(N-m/rad)

Tightening Torque of the Fastening Screw (N-m)(N-m)

Size

Elastomer Insert

CAD