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Flexible Couplings - Oldham type, high stiffness with large outside diameter. (Part Numbers)

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MISUMI

Spacer Material Changed. Product with Doubled Allowable Torque.

METRIC
inCAD Components

Part Number

Configured Part Number is shown.

Couplings - High Rigidity, Oldham, Large Shaft Diameter:Related Image

[ ! ]For the selection criteria and alignment procedures >> Click here

・Materials

Shape	Keywayed Bore	[ M ]Material		[ A ]Accessories
	d₁, d₂ (Both Sides)	Hub	Spacer
Set Screw	MFJGWK	Stainless Steel	Aluminum Bronze	Set Screw
Clamping	MFJCGWK			Hex Socket Head Cap Screw

Specifications

Part Number	-	Shaft Bore Dia. d₁	-	Shaft Bore Dia. d₂
MFJGWK45	-	15	-	20
MFJCGWK55	-	22	-	25

■Set Screw

Part Number		d₁, d₂ (d₁≤d₂)										d₃	L	ℓ	F	Set Screw
Type	D	d₁, d₂ (d₁≤d₂)										d₃	L	ℓ	F	M	Tightening Torque (N·m)
MFJGWK	45	15	16	18	20							22.5	43.6	15	7.5	M 5	3.6
	55				20	22	24	25				29	49.4	17	8.5	M 6	6.0
	70							25	28	30	35	36	57.0	20	10	M 8	14.0

[ ! ]For orders larger than indicated quantity, please request a quotation.

■Clamping

Part Number		d₁, d₂ (d₁≤d₂)							d₃	L	ℓ	F	A	Clamp Screw
Type	D	d₁, d₂ (d₁≤d₂)							d₃	L	ℓ	F	A	M	Tightening Torque (N·m)
MFJCGWK	45	15	16	18	20				22.5	46	16.2	6	14.5	M5	*10
MFJCGWK	55				20	22	24	25	29	57	20.8	7	18.5	M6	*15

[ ! ] * When the shaft diameter is small, clamp screw tightening torque should be higher than the prescribed value to prevent shaft slipping. The above tightening torque is for reference.
[ ! ]For orders larger than indicated quantity, please request a quotation.

■Clamping

Part Number		Allowable Torque (N·m)	Angular Misalignment (°)	Lateral Misalignment (mm)	Static Torsional Spring Constant (N·m/rad)	Max. Rotational Speed (r/min)	Moment of Inertia (kg·m²)	Allowable Axial Misalignment (mm)	Mass (g)
Type	D
MFJCGWK	45	50	1	0.8	35000	5000	1.8 x10^-4	±0.3	450
	55	75		1.0	52000		3.3 x10^-4	±0.5	800

■Set Screw

Part Number		Allowable Torque (N·m)	Angular Misalignment (°)	Lateral Misalignment (mm)	Static Torsional Spring Constant (N·m/rad)	Max. Rotational Speed (r/min)	Moment of Inertia (kg·m²)	Allowable Axial Misalignment (mm)	Mass (g)
Type	D
MFJGWK	45	60	1	1	65000	10000	1.7x10^-4	±0.3	400
	55	90		1.2	100000		3.3x10^-4	±0.5	700
	70	160		1.6	180000		11x10^-4	±0.6	1300

Alterations

More Information

Technical Information

Keyway Dimensions

Shaft Bore Dia. d1, d2	b		t		Key Nom. Dim. b x h
Shaft Bore Dia. d1, d2	Dim.	Tolerance	Dim.	Tolerance	Key Nom. Dim. b x h
14-17	5	±0.0150	2.3	+0.1 0	5x5
17.1-22	6	±0.0150	2.8	+0.1 0	6x6
22.1-30	8	±0.0180	3.3	+0.2 0	8x7
30.1-38	10	±0.0180	3.3	+0.2 0	10x8

Support Information

MISUMI Coupling Type

Coupling Type	Disk Tye	With Slit Type	Oldham Type	Jaw Type	Bellows Type	Rigid Type	Universal Joints Type	Chain Couplings Type
Photo
Shaft Bore Dia	Ø2-60 mm	Ø1.5-35 mm	Ø1-47 mm	Ø3-60 mm	Ø0-62 mm	Ø3-35 mm	Ø1-60 mm	Ø14-55 mm
Mortor Recommendation	Servo Motor Stepping Motors	Servo Motor Stepping Motors	*General Purpose Morter	Stepping Motors General Purpose Morter	*Stepping Motors	Servo Motor Stepping Motors	Stepping Motors General Purpose Morter	*General Purpose Morter
Torque	0.15-800 N·m	0.05-35 N·m	0.06-352 N·m	0.31-1,350 N·m	0.3-500 N·m	0.3-206 N·m	0.25-495 N·m	100-2,372 N·m
Zero Backlash	Excellent	Excellent	Inefficient	Inefficient	Good	Excellent	Inefficient	Inefficient
Allowable Angular Misalignment	Good	Good	Excellent	Reasonable	Excellent	Inefficient	Excellent	Reasonable
Allowable Lateral Misalignment	Reasonable	Reasonable	Excellent	Reasonable	Reasonable	Inefficient	Inefficient	Reasonable
Axial Misalignment	Good	Reasonable	Good	Inefficient	Excellent	Inefficient	Inefficient	Inefficient
See all options	Click here	Click here	Click here	Click here	Click here	Click here	Click here	Click here

For more details on each type of coupling click here

Features

Oldham Couplings

Easy to install with large angular/lateral misalignment allowances characteristics.

Spacers designed to flex and slide to allow misalignments.
Larger misalignment allowance ranges compared to the other types, making for easy to adjust for installing.
High rigidity type has bronze spacer material instead of resin, and has torque capacity 2x of the conventional type.
Space-Saving Type up to 17% shorter in length contributing to space saving machine designs.

Cautions

Use Precautions

Make sure to keep misalignment within the allowed range and avoid excessive torque. Otherwise the coupling’s life will be shortened considerably due to plastic deformation.
For your safety, enclose the revolving parts of equipment with a protective cover.
If the coupling item generates abnormal metallic noises, immediately turn off the equipment and identify the cause. Such noises may be an indication of improper alignment, shaft interference or a loose screw.
For applications with a large load fluctuation, apply an adhesive agent on the coupling’s screws to prevent them from loosening. Alternatively, select a coupling of a larger size/load capability.

Compatible Models

Category	Rotary Shafts	Lead Screw Shafts	Lead Screw Nuts	Lead Screw Position Indicators	Ball Screws
Image

Part Number

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CAD Download

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Part Number
MFJCGWK45-[15,16,18,20]-[15,16,18,20]
MFJCGWK45-[15,16,18,20]-RDC[15-20/1]
MFJCGWK45-LDC[15-20/1]-[15,16,18,20]
MFJCGWK45-LDC[15-20/1]-RDC[15-20/1]

Minimum order quantity	Days to Ship	RoHS	Allowable Torque Range (N•m)	For Shaft Size d1 (mm)	For Shaft Size d2 (mm)	O.D. D (Ø)	Overall Length (mm)	Allowable Torque (N•m)	Max. Rotational Speed (r/min)	Allowable Lateral Misalignment Range (mm)	Allowable Lateral Misalignment (mm)	Allowable Axial Misalignment (mm)	Moment of Inertia (kg･m²)	Shaft Tightening Method	Shaft I.D. d1 Change Hole Dia. [LDC] Specified in 1mm Increment	Shaft I.D. d2 Change Hole Dia. [RDC] Specified in 1mm Increment
1 Piece(s)	12 Days or more	10	20.01~50.00	15 ～ 20	15 ～ 20	45	46	50	5000	0.41~1.0	0.8	+0.3/-0.3	1.8 ×10^-4	Clamping	-	-
1 Piece(s)	12 Days or more	10	20.01~50.00	15 ～ 20	-	45	46	50	5000	0.41~1.0	0.8	+0.3/-0.3	1.8 ×10^-4	Clamping	-	15 ～ 20
1 Piece(s)	12 Days or more	10	20.01~50.00	-	15 ～ 20	45	46	50	5000	0.41~1.0	0.8	+0.3/-0.3	1.8 ×10^-4	Clamping	15 ～ 20	-
1 Piece(s)	12 Days or more	10	20.01~50.00	-	-	45	46	50	5000	0.41~1.0	0.8	+0.3/-0.3	1.8 ×10^-4	Clamping	15 ～ 20	15 ～ 20

Product TOP

Basic Information

Series Name	Oldham Type	Allowable Misalignment	Angular / Eccentricity / Axial	Application	Standard
Max. Rotational Speed Range(r/min)	4001~10000	Features	High Torsional Rigidity / High Torque Type	Body Material	Stainless Steel
Category	Coupling Main Body	Allowable Angular Misalignment(deg)	1	Buffer Part Material	Aluminum Bronze
Operating Temperature(℃)	-20::80

Configure

4 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

For Shaft Size d1(mm)
15

16

18

20

22

24

25

28

30

35
Clear
For Shaft Size d2(mm)
15

16

18

20

22

24

25

28

30

35
Clear
O.D. D(Ø)
45

55

70
Clear
Overall Length(mm)
43.6

46

49.4

57
Clear
Allowable Torque(N•m)
50

60

75

90

160
Clear
Max. Rotational Speed(r/min)
5000

10000
Clear
Allowable Lateral Misalignment Range(mm)
0.41~1.0

1.1~3.0
Clear
Allowable Lateral Misalignment(mm)
0.8

1

1.2

1.6
Clear
Shaft Tightening Method
- Clamping
- Set Screws
Clear
Shaft I.D. d1 Change Hole Dia. [LDC] Specified in 1mm Increment
[15-20/1]
Clear
Shaft I.D. d2 Change Hole Dia. [RDC] Specified in 1mm Increment
[15-20/1]
Clear
type
- MFJCGWK
- MFJGWK
Clear
Allowable Torque Range(N•m)
20.01~50.00

50.01~100.00
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

12 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 .

Additional Products in this Category

Complementary Products

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Bearings with Housing - Direct mounting, compact housing.
MISUMI Days to Ship : 8 Days or more
Bearings with Housing - Angular contact bearings, one deep groove ball bearing, round flange, double bearings.
MISUMI Days to Ship : 12 Days or more

MISUMI Unit Example related to this product

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Tech Support

Technical Support: Tel：+52-442-672-7661 ext. 2 then wait and dial 4
E-mail: soportetecnico@misumimex.com; Mon. - Fri. 8 a.m. - 6 p.m.; Technical Inquiry

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About MISUMI Corporation

Contact us Monday to Friday: 8:00 am to 6:00 pm (Mexico City time)

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Applications

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How can we improve?

Flexible Couplings - Oldham type, high stiffness with large outside diameter. (Part Numbers)

Specifications

Alterations

More Information

Technical Information

Keyway Dimensions

Support Information

MISUMI Coupling Type

Features

Oldham Couplings

Cautions

Use Precautions

Compatible Models

Part Number

Basic Information

Configure

Specification/Dimensions

For Shaft Size d1(mm)

For Shaft Size d2(mm)

O.D. D(Ø)

Overall Length(mm)

Allowable Torque(N•m)

Max. Rotational Speed(r/min)

Allowable Lateral Misalignment Range(mm)

Allowable Lateral Misalignment(mm)

Shaft Tightening Method

Shaft I.D. d1 Change Hole Dia. [LDC] Specified in 1mm Increment

Shaft I.D. d2 Change Hole Dia. [RDC] Specified in 1mm Increment

type

Allowable Torque Range(N•m)

CAD

Days to Ship

Specify Alterations

Additional Products in this Category

Complementary Products

MISUMI Unit Example related to this product

Tech Support

About This Website

About MISUMI Corporation

Contact us Monday to Friday: 8:00 am to 6:00 pm (Mexico City time)