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Oldham Couplings MJ series　

MIGHTY

· Oldham Couplings MJ series
· Oldham Couplings are 3-part couplings consisting of 2 hubs and 1 torque disc.
· 2 hubs materials are Aluminum Alloy and Free-cutting brass.
· 3 methods surface treatment solution for hubs are non-chromium chemical conversion treatment, Anodization and Electroless nickel plating.
· Torque disc materials are Polyacetal, Nylon and PEEK.
· Shaft Fastening Method: Set screw type.
· MJ series size: 6 to 57.
· Allowable Angular misalignment 1 degree.
· All through hole hubs MJ-50 and 57 with keyways standard (JIS B13101-1996)

Part Number

Configured Part Number is shown.

Product TOP

: 30; 45; 60

Part Number
MJ-33-8X8
MJ-33-8X9
MJ-33-8X10
MJ-33-8X11
MJ-33-8X12
MJ-33-8X13
MJ-33-8X14
MJ-33-9X9
MJ-33-9X10
MJ-33-9X11
MJ-33-9X12
MJ-33-9X13
MJ-33-9X14
MJ-33-10X10
MJ-33-10X11
MJ-33-10X12
MJ-33-10X13
MJ-33-10X14
MJ-33-11X11
MJ-33-11X12
MJ-33-11X13
MJ-33-11X14
MJ-33-12X12
MJ-33-12X13
MJ-33-12X14
MJ-33-13X13
MJ-33-13X14
MJ-33-14X14
MJ-41-8X8
MJ-41-8X9
MJ-41-8X10
MJ-41-8X11
MJ-41-8X12
MJ-41-8X13
MJ-41-8X14
MJ-41-8X15
MJ-41-8X16
MJ-41-8X17
MJ-41-8X18
MJ-41-8X19
MJ-41-8X20
MJ-41-9X9
MJ-41-9X10
MJ-41-9X11
MJ-41-9X12
MJ-41-9X13
MJ-41-9X14
MJ-41-9X15
MJ-41-9X16
MJ-41-9X17
MJ-41-9X18
MJ-41-9X19
MJ-41-9X20
MJ-41-10X10
MJ-41-10X11
MJ-41-10X12
MJ-41-10X13
MJ-41-10X14
MJ-41-10X15
MJ-41-10X16

Standard Unit Price	Minimum order quantity	Days to Ship	RoHS	Shaft Bore Dia. (machined) D1 (Ø)	Shaft Bore Dia. (machined) D2 (Ø)	Outer Dia. A (Ø)	Overall Length W (mm)	Allowable Torque Range (N•m)	Allowable Misalignment	Body Material	Allowable Torque (N•m)	Allowable Angular Misalignment (deg)	Allowable Lateral Misalignment (mm)	Allowable Lateral Misalignment Range (mm)	Buffer Material	Operating Temperature Range (°C)	Moment of Inertia (kg･m²)	Specifications
SGD 117.89	1 Piece(s)	8 Day(s) or more	10	8	8	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	8	9	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	8	10	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	8	11	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	8	12	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	8	13	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	8	14	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 117.89	1 Piece(s)	8 Day(s) or more	10	9	9	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	9	10	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	9	11	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	9	12	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	9	13	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	9	14	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 117.89	1 Piece(s)	8 Day(s) or more	10	10	10	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	10	11	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	10	12	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	10	13	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	10	14	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 117.89	1 Piece(s)	8 Day(s) or more	10	11	11	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	11	12	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	11	13	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	11	14	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 117.89	1 Piece(s)	8 Day(s) or more	10	12	12	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	12	13	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	12	14	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 117.89	1 Piece(s)	8 Day(s) or more	10	13	13	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 120.71	1 Piece(s)	8 Day(s) or more	10	13	14	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 117.89	1 Piece(s)	8 Day(s) or more	10	14	14	33.3	48	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	10	1	3.8	3.1~5.0	Polyacetal	-	1133X10-8	Set screw locking
SGD 133.60	1 Piece(s)	8 Day(s) or more	10	8	8	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	9	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	10	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	11	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	12	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	13	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	14	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	15	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	16	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	17	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	18	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	19	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	8	20	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 133.60	1 Piece(s)	8 Day(s) or more	10	9	9	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	10	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	11	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	12	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	13	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	14	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	15	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	16	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	17	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	18	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	19	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	9	20	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 133.60	1 Piece(s)	8 Day(s) or more	10	10	10	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	10	11	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	10	12	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	10	13	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	10	14	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	10	15	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking
SGD 137.81	1 Piece(s)	8 Day(s) or more	10	10	16	41.3	50.8	5.01~10.00	Angular Misalignment / Eccentricity	[Aluminum] Aluminum Alloy	17	1	5	3.1~5.0	Polyacetal	-	3177X10-8	Set screw locking

Basic Information

Type	Oldham Type	Application	Standard / Servo Motor / Stepping Motor / Encoder	Features	High accuracy / High durability / Backlash 0 / Vibration Absorption

Configure

119 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Shaft Bore Dia. (machined) D1(Ø)
2

3

4

5

6

7

8

9

10

11

12

12.7

13

14

15

16

17

18

19

20

20.5

21

22

24

25

25.4

28

30

30.5

36

47

56
Clear
Shaft Bore Dia. (machined) D2(Ø)
2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

22

24

25

28

30
Clear
Outer Dia. A(Ø)
6.4

9.5

12.7

19.1

25.4

33.3

41.3

50

57

70

88

118
Clear
Overall Length W(mm)
5.1

7.3

9.4

11.2

12.7

14.6

15.9

18

18.1

20.2

22

26.6

28.4

30

48

50.8

56

59.7

77.8
Clear
Allowable Torque Range(N•m)
0.05~1.00

1.01~3.00

3.01~5.00

5.01~10.00

20.01~50.00
Clear
Allowable Misalignment
- No
- Angular Misalignment
- Eccentricity
Clear
Body Material
- Aluminum
  - Aluminum Alloy
- Free-Cutting Brass
Clear
Allowable Torque(N•m)
0.06

0.21

0.5

1.7

4

10

17

30

37.5
Clear
Allowable Angular Misalignment(deg)
1
Clear
Allowable Lateral Misalignment(mm)
0.8

1.3

1.6

2.4

3

3.8

5

6

7
Clear
Buffer Material
- Polyacetal
- Nylon
- PEEK
- Others
  - Aluminum Alloy Lubrication Plating
  - Aluminum Alloy Resin Coating
Clear
Specifications
- Individual torque disk
- Set screw locking
Clear
type
- MJ
Clear
Allowable Lateral Misalignment Range(mm)
0.41~1.0

1.1~3.0

3.1~5.0

5.1~100
Clear

Days to Ship

All

4 Day(s) or Less

8 Day(s) 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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Oldham Couplings MJ series

Basic Information

Configure

Specification/Dimensions

Shaft Bore Dia. (machined) D1(Ø)

Shaft Bore Dia. (machined) D2(Ø)

Outer Dia. A(Ø)

Overall Length W(mm)

Allowable Torque Range(N•m)

Allowable Misalignment

Body Material

Allowable Torque(N•m)

Allowable Angular Misalignment(deg)

Allowable Lateral Misalignment(mm)

Buffer Material

Specifications

type

Allowable Lateral Misalignment Range(mm)

Days to Ship

Specify Alterations

Tech Support

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