Oldham couplings / fixing selectable / 1 disc: cast iron, regreasable / body: steel / MOM / NBK (Part Numbers - CAD Download)

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[Features]
· Oldham type flexible coupling.
· FCD400 used in spacer.
· Ideal for low speed / high torque specifications.
· Grease applied between hub and spacer to prevent burn-in.
· Due to hub and spacer slip, large eccentricity / deflection angles are allowed.
· The protrusion (resin pin) provided on the spacer allows the angle of deviation without difficulty.
· Long-term maintenance-free.
· Grease accumulated in the grease hole gradually leaks during operation, to maintain long-term lubrication performance.

Part Number

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Part Number
MOM-55-20-28
MOM-55-20-28-KT
MOM-55-20-29-BT
MOM-55-20-30
MOM-55-20-KT-20
MOM-55-20-KT-21-BT
MOM-55-20-KT-22
MOM-55-20-KT-23-BT
MOM-55-20-KT-24
MOM-55-20-KT-25
MOM-55-20-KT-26-BT
MOM-55-20-KT-27-BT
MOM-55-20-KT-28
MOM-55-20-KT-29-BT
MOM-55-20-KT-30
MOM-55-21-BT-21-BT
MOM-55-21-BT-22
MOM-55-21-BT-22-KT
MOM-55-21-BT-23-BT
MOM-55-21-BT-24
MOM-55-21-BT-24-KT
MOM-55-21-BT-25
MOM-55-21-BT-25-KT
MOM-55-21-BT-26-BT
MOM-55-21-BT-27-BT
MOM-55-21-BT-28
MOM-55-21-BT-28-KT
MOM-55-21-BT-29-BT
MOM-55-21-BT-30
MOM-55-22-22
MOM-55-22-23-BT
MOM-55-22-24
MOM-55-22-24-KT
MOM-55-22-25
MOM-55-22-25-KT
MOM-55-22-26-BT
MOM-55-22-27-BT
MOM-55-22-28
MOM-55-22-28-KT
MOM-55-22-29-BT
MOM-55-22-30
MOM-55-22-KT-22
MOM-55-22-KT-23-BT
MOM-55-22-KT-24
MOM-55-22-KT-25
MOM-55-22-KT-26-BT
MOM-55-22-KT-27-BT
MOM-55-22-KT-28
MOM-55-22-KT-29-BT
MOM-55-22-KT-30
MOM-55-23-BT-23-BT
MOM-55-23-BT-24
MOM-55-23-BT-24-KT
MOM-55-23-BT-25
MOM-55-23-BT-25-KT
MOM-55-23-BT-26-BT
MOM-55-23-BT-27-BT
MOM-55-23-BT-28
MOM-55-23-BT-28-KT
MOM-55-23-BT-29-BT

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Allowable Torque Range (N•m)	Shaft Bore Dia. (machined) D1 (mm)	Shaft Bore Dia. (machined) D2 (mm)	Outer Diameter (mm)	Overall Length (mm)	Normal Torque (Nm)	Allowable Lateral Misalignment Range (mm)	Allowable Lateral Misalignment (mm)	Moment of Inertia (kg･m²)	Structure	Additional Work	Keyway
215.50 €	1	9 Days	10	100～Less than 500	20	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	NA
225.93 €	1	9 Days	10	100～Less than 500	20	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D2 Hole
236.34 €	1	9 Days	10	100～Less than 500	20	29	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
215.50 €	1	9 Days	10	100～Less than 500	20	30	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	NA
225.93 €	1	9 Days	10	100～Less than 500	20	20	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
249.71 €	1	9 Days	10	100～Less than 500	20	21	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D1 Hole
225.93 €	1	9 Days	10	100～Less than 500	20	22	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
249.71 €	1	9 Days	10	100～Less than 500	20	23	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D1 Hole
225.93 €	1	9 Days	10	100～Less than 500	20	24	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
225.93 €	1	9 Days	10	100～Less than 500	20	25	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
249.71 €	1	9 Days	10	100～Less than 500	20	26	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D1 Hole
249.71 €	1	9 Days	10	100～Less than 500	20	27	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D1 Hole
225.93 €	1	9 Days	10	100～Less than 500	20	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
249.71 €	1	9 Days	10	100～Less than 500	20	29	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D1 Hole
225.93 €	1	9 Days	10	100～Less than 500	20	30	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
260.12 €	1	9 Days	10	100～Less than 500	21	21	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
236.34 €	1	9 Days	10	100～Less than 500	21	22	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
249.71 €	1	9 Days	10	100～Less than 500	21	22	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D2 Hole
260.12 €	1	9 Days	10	100～Less than 500	21	23	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
236.34 €	1	9 Days	10	100～Less than 500	21	24	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
249.71 €	1	9 Days	10	100～Less than 500	21	24	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D2 Hole
236.34 €	1	9 Days	10	100～Less than 500	21	25	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
249.71 €	1	9 Days	10	100～Less than 500	21	25	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D2 Hole
260.12 €	1	9 Days	10	100～Less than 500	21	26	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
260.12 €	1	9 Days	10	100～Less than 500	21	27	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
236.34 €	1	9 Days	10	100～Less than 500	21	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
249.71 €	1	9 Days	10	100～Less than 500	21	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D2 Hole
260.12 €	1	9 Days	10	100～Less than 500	21	29	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
236.34 €	1	9 Days	10	100～Less than 500	21	30	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
215.50 €	1	9 Days	10	100～Less than 500	22	22	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	NA
236.34 €	1	9 Days	10	100～Less than 500	22	23	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
215.50 €	1	9 Days	10	100～Less than 500	22	24	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	NA
225.93 €	1	9 Days	10	100～Less than 500	22	24	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D2 Hole
215.50 €	1	9 Days	10	100～Less than 500	22	25	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	NA
225.93 €	1	9 Days	10	100～Less than 500	22	25	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D2 Hole
236.34 €	1	9 Days	10	100～Less than 500	22	26	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
236.34 €	1	9 Days	10	100～Less than 500	22	27	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
215.50 €	1	9 Days	10	100～Less than 500	22	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	NA
225.93 €	1	9 Days	10	100～Less than 500	22	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D2 Hole
236.34 €	1	9 Days	10	100～Less than 500	22	29	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
215.50 €	1	9 Days	10	100～Less than 500	22	30	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	NA
225.93 €	1	9 Days	10	100～Less than 500	22	22	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
249.71 €	1	9 Days	10	100～Less than 500	22	23	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D1 Hole
225.93 €	1	9 Days	10	100～Less than 500	22	24	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
225.93 €	1	9 Days	10	100～Less than 500	22	25	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
249.71 €	1	9 Days	10	100～Less than 500	22	26	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D1 Hole
249.71 €	1	9 Days	10	100～Less than 500	22	27	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D1 Hole
225.93 €	1	9 Days	10	100～Less than 500	22	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
249.71 €	1	9 Days	10	100～Less than 500	22	29	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D1 Hole
225.93 €	1	9 Days	10	100～Less than 500	22	30	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Standard Shaft Bore	D1 Hole
260.12 €	1	9 Days	10	100～Less than 500	23	23	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
236.34 €	1	9 Days	10	100～Less than 500	23	24	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
249.71 €	1	9 Days	10	100～Less than 500	23	24	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D2 Hole
236.34 €	1	9 Days	10	100～Less than 500	23	25	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
249.71 €	1	9 Days	10	100～Less than 500	23	25	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D2 Hole
260.12 €	1	9 Days	10	100～Less than 500	23	26	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
260.12 €	1	9 Days	10	100～Less than 500	23	27	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
236.34 €	1	9 Days	10	100～Less than 500	23	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA
249.71 €	1	9 Days	10	100～Less than 500	23	28	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	D2 Hole
260.12 €	1	9 Days	10	100～Less than 500	23	29	55	51	99	1.1 to 3.0	1.2	3.0×10^-4	Set Screw Type	Additional Work Shaft Hole	NA

Basic information

Type	Oldham Type	Allowable Misalignment	Angular Misalignment / Eccentricity	Application	Standard
Maximum Range of Rotation Number(r/min)	1,001 to 2,000	Feature	High torsional rigidity / High Torque	Body Material	EN 1.1191 Equiv.
Category	Coupling body	Max. Rotational Speed(r/min)	2000	Allowable Angular Misalignment(deg)	2

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2,477Suggestion of an applicable part number.

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Stock

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Basic Attributes

Shaft Bore Dia. (machined) D1(mm)
3

4

5

6

6.35

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
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Shaft Bore Dia. (machined) D2(mm)
3

4

5

6

6.35

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
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Outer Diameter(mm)
12

15

17

20

26

30

34

38

45

55

70
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Overall Length(mm)
15

16.6

19

20.4

22

25

26.6

28

31.6

34

35

40.5

45.2

47.6

51

58.6

68.6
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Normal Torque(Nm)
2.7

3.3

5.5

7.7

11

26

35

55

66

99

176
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Allowable Lateral Misalignment Range(mm)
0.21 to 0.40

0.41 to 1.0

1.1 to 3.0
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Allowable Lateral Misalignment(mm)
0.3

0.4

0.5

0.6

0.7

0.8

1

1.2

1.4
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Structure
- Clamping + key type
- Clamping Type
- Set Screw Type
- Set screw + key type
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Additional Work
- Additional Work Shaft Hole
- Standard Shaft Bore
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Keyway
- D1 Hole
- D2 Hole
- Both Sides
- NA
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Type
- MOM
- MOM-C
- MOM-CK
- MOM-K
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Allowable Torque Range(N•m)
5.01 to 10.00

10.01 to 20.00

20.01 to 50.00

50.01 to 100.00

100～Less than 500
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