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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/300/A/20/20
EKL/300/A/20/21
EKL/300/A/20/22
EKL/300/A/20/23
EKL/300/A/20/24
EKL/300/A/20/25
EKL/300/A/20/26
EKL/300/A/20/27
EKL/300/A/20/28
EKL/300/A/20/29
EKL/300/A/20/30
EKL/300/A/20/31
EKL/300/A/20/32
EKL/300/A/20/33
EKL/300/A/20/34
EKL/300/A/20/35
EKL/300/A/20/36
EKL/300/A/20/37
EKL/300/A/20/38
EKL/300/A/20/39
EKL/300/A/20/40
EKL/300/A/20/41
EKL/300/A/20/42
EKL/300/A/20/43
EKL/300/A/20/44
EKL/300/A/20/45
EKL/300/A/21/21
EKL/300/A/21/22
EKL/300/A/21/23
EKL/300/A/21/24
EKL/300/A/21/25
EKL/300/A/21/26
EKL/300/A/21/27
EKL/300/A/21/28
EKL/300/A/21/29
EKL/300/A/21/30
EKL/300/A/21/31
EKL/300/A/21/32
EKL/300/A/21/33
EKL/300/A/21/34
EKL/300/A/21/35
EKL/300/A/21/36
EKL/300/A/21/37
EKL/300/A/21/38
EKL/300/A/21/39
EKL/300/A/21/40
EKL/300/A/21/41
EKL/300/A/21/42
EKL/300/A/21/43
EKL/300/A/21/44
EKL/300/A/21/45
EKL/300/A/22/22
EKL/300/A/22/23
EKL/300/A/22/24
EKL/300/A/22/25
EKL/300/A/22/26
EKL/300/A/22/27
EKL/300/A/22/28
EKL/300/A/22/29
EKL/300/A/22/30

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)	21 Days	500~less than 1000	20	20	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	21	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	22	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	23	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	24	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	25	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	26	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	27	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	28	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	29	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	30	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	31	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	32	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	33	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	34	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	35	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	36	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	37	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	38	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	39	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	40	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	41	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	42	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	43	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	44	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	20	45	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	21	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	22	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	23	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	24	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	25	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	26	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	27	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	28	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	29	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	30	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	31	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	32	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	33	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	34	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	35	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	36	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	37	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	38	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	39	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	40	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	41	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	42	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	43	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	44	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	21	45	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	8 Days	500~less than 1000	22	22	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	22	23	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	22	24	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	8 Days	500~less than 1000	22	25	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	22	26	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	22	27	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	22	28	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	22	29	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A
1 Piece(s)	21 Days	500~less than 1000	22	30	82	86	4001~10000	650	9000	1	0.02~0.2	0.18	-30～100	2	0.0006	31	12400	70	300	A - Shore 98A

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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

650 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

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
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
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

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

Allowable Torque Range(N•m)

CAD