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Flexible Couplings - Disc type, for servomotor, high torque, clamping type SCPS/SCPW series.

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MISUMI

Most Suitable for Servo-Motor Driven Diveces

METRIC
inCAD Components

Part Number

Configured Part Number is shown.

Couplings - High Rigidity Disc, Clamping, For Servo Motors:Related Image

E For the selection criteria and alignment procedures >> Click here

・Materials

Type	[ M ]Material			[ S ]Surface Treatment			[ A ]Accessories
Type	Body	Disc	Screw	Body	Disc	Screw	[ A ]Accessories
SCPW SCPS	Aluminum Alloy	Stainless Steel	4137 Alloy Steel	Clear Anodize	-	Black Oxide	Hex Socket Head Cap Screw

Specifications

Part Number	-	Shaft Bore Dia. d₁	-	Shaft Bore Dia. d₂
SCXW46	-	10	-	14
SCXWK46	-	12	-	14
SCPW34	-	8	-	12

Part Number		d₁, d₂ (d₁≤d₂)																	D	d₃	L		ℓ	F	A	Clamp Screw
Type	No.	d₁, d₂ (d₁≤d₂)																	D	d₃	SCPW	SCPS	ℓ	F	A	M	Tightening Torque (N·m)
Double Disc Type SCPW Single Disc Type SCPS	16	*3	4	5	6														16.6	6.5	23	16.6	7.2	3	5.3	M2.6	1.0
	21		4	5	6	8	9												21	9.5	24.5	16.7	7	3.5	7	M2.6	1.2
	28			5	6	8	9	10											28	12	32.2	21.5	9	4	9.5	M3	1.5
	34				6	8	9	10	11	12	14								34	15	35	23.3	9.8	5	12	M3	1.5
	46					8	9	10	11	12	14	15	17	19					46	22	44	29.8	12.6	6	16.5	M4	3.5
	55									12	14	15	17	19	20	22	24	25	54.5	26	55	37.2	16	7	20.5	M5	6.0

[ ! ]When d1, d2 is *3, use with the load torque 60% or less than shown in the table to prevent slipping.

■Double Disc Type (High Rigidity)

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)	Compensation Factor	Mass (g)
Type	No.
SCPW	16	1.0	1.0	0.10	500	10000	4.22x10^-7	±0.20	1.5	11
	21	1.2			800		1.11x10^-6			17
	28	1.6	1.2	0.15	3000		4.68x10^-6			42
	34	4.0	1.5	0.20	4800		1.10x10^-5			65
	46	10.0		0.25	11500		4.70x10^-5	±0.30		151
	55	25.0			19000		1.19x10^-4			260

[ ! ]Static torsional spring constant, inertia moment, and mass values are for cases of maximum shaft diameter.
■Single Disc Type (High Rigidity)

Part Number		Allowable Torque (N·m)	Angular Misalignment (°)	Static Torsional Spring Constant (N·m/rad)	Max. Rotational Speed (r/min)	Moment of Inertia (kg·m²)	Allowable Axial Misalignment (mm)	Compensation Factor	Mass (g)
Type	No.
SCPS	16	1.0	1.0	1000	10000	3.16x10^-7	±0.10	1.5	8
	21	1.2		1700		7.90x10^-7			12
	28	1.6	1.2	6000		3.24x10^-6			30
	34	4.0	1.5	8000		7.60x10^-6			45
	46	10.0		20000		3.23x10^-5	±0.15		105
	55	25.0		33000		8.19x10^-5			180

[ NG ]Single Disc Type cannot tolerate lateral misalignment.

Price list

■Volume Discount Rate ([ ! ]Round down to nearest one cent.) Click here

Quantity	1~9	10~14	15~19
Discount Rate	Unit Price	5%	10%

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

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

Disc Couplings

Zero backlash, and best suited for high torque servo motor applications. characteristics.

Designed to absorb misalignments by disc flexures.
Zero backlash nature provides high angular accuracy, suitable for applications requiring high positioning accuracies.
The High Rigidity Type couplings have largely improved torsional rigidity over the Standard Types due to screw-coupled discs instead of the swage-coupled discs of the Standard.

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

CAD Data download and 3D preview are not available because the part number has not yet been determined.

*In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.

CAD Download

: 30; 45; 60

Part Number
SCPW16-[3,4,5,6]-[3,4,5,6]
SCPW21-[4,5,6,8,9]-[4,5,6,8,9]
SCPW28-[5,6,8,9,10]-[5,6,8,9,10]
SCPW34-[6,8,9,10,11,12,14]-[6,8,9,10,11,12,14]

Minimum order quantity	Days to Ship	RoHS	Allowable Misalignment	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)	Allowable Angular Misalignment (deg)	Allowable Lateral Misalignment Range (mm)	Allowable Lateral Misalignment (mm)	Allowable Axial Misalignment (mm)	Moment of Inertia (kg･m²)	Single/Double
1 Piece(s)	8 Days or more	10	Angular / Eccentricity / Axial	0.05~1.00	3 ～ 6	3 ～ 6	16.6	23	1	1	0.02~0.2	0.1	+0.20/-0.20	4.22×10^-7	Double
1 Piece(s)	8 Days or more	10	Angular / Eccentricity / Axial	1.01~3.00	4 ～ 9	4 ～ 9	21	24.5	1.2	1	0.02~0.2	0.1	+0.20/-0.20	1.11×10^-6	Double
1 Piece(s)	8 Days or more	10	Angular / Eccentricity / Axial	1.01~3.00	5 ～ 10	5 ～ 10	28	32.2	1.6	1.2	0.02~0.2	0.15	+0.20/-0.20	4.68×10^-6	Double
1 Piece(s)	8 Days or more	10	Angular / Eccentricity / Axial	3.01~5.00	6 ～ 14	6 ～ 14	34	35	4	1.5	0.02~0.2	0.2	+0.20/-0.20	1.10×10^-5	Double

Example

Product TOP

Basic Information

Series Name	Disc Type	Application	For Servo Motors	Max. Rotational Speed Range(r/min)	4001~10000
Features	High Torsional Rigidity / High Torque Type / Zero Backlash / Low Moment of Inertia	Body Material	Aluminum	Category	Coupling Main Body
Max. Rotational Speed(r/min)	10000	Disc Material	Stainless Steel

Configure

4 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Allowable Misalignment
- Angular
- Eccentricity
- Axial
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
For Shaft Size d1(mm)
3

4

5

6

8

9

10

11

12

14

15

17

19

20

22

24

25
Clear
For Shaft Size d2(mm)
3

4

5

6

8

9

10

11

12

14

15

17

19

20

22

24

25
Clear
O.D. D(Ø)
16.6

21

28

34

46

54.5
Clear
Overall Length(mm)
16.6

16.7

21.5

23

23.3

24.5

29.8

32.2

35

37.2

44

55
Clear
Allowable Torque(N•m)
1

1.2

1.6

4

10

25
Clear
Allowable Angular Misalignment(deg)
1

1.2

1.5
Clear
Allowable Lateral Misalignment(mm)
0.1

0.15

0.2

0.25
Clear
Single/Double
- Double
- Single
Clear
type
- SCPS
- SCPW
Clear
Allowable Lateral Misalignment Range(mm)
0.02~0.2

0.21~0.40
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

8 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

Rotary Shafts - Straight.
MISUMI Days to Ship : 7 Days or more
Drive Shafts - Straight
MISUMI Days to Ship : 12 Days or more
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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Contact us Monday to Friday: 8:00 am to 6:00 pm (Mexico City time)

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Categories

Applications

Brands

How can we improve?

Flexible Couplings - Disc type, for servomotor, high torque, clamping type SCPS/SCPW series.

Specifications

Price list

Support Information

MISUMI Coupling Type

Features

Disc Couplings

Cautions

Use Precautions

Compatible Models

Part Number

Example

Basic Information

Configure

Specification/Dimensions

Allowable Misalignment

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)

Allowable Angular Misalignment(deg)

Allowable Lateral Misalignment(mm)

Single/Double

type

Allowable Lateral Misalignment Range(mm)

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)