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Jaw-Shaped Coupling - Clamping Type - [SJC, SJCA, and SJCB] (SJC-20C-GR-8K4X8K4)

SUNGIL

Brand-name products provided by MISUMI-VONA are offered based on customers' needs that selected from products of Asian manufacturers carefully. Please select an item according to the user's various usage scenes. A Korean manufacturer established in 1991. Korean coupling market share is 70%, with over 3,000 customers. No1 maker. Rich selection, and short lead-times.

(i)Caution

Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.

Part Number

Configured Part Number is shown.

SJC-20C-GR-8K4X8K4

Product TOP

: 30; 45; 60

Part Number
SJC-20C-GR-8K4X8K4

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Shaft Hole Dia.(Already processed) d1 (Ø)	Shaft Hole Dia.(Already processed) d2 (Ø)	Outer Diameter D (Ø)	Full length L (mm)	Rated torque range (N•m)	Features	Max. Rotational Speed Range (r/min)	Rated Torque (N•m)	Allowable Lateral Misalignment (mm)	Max. Rotational Speed (r/min)	Buffer Material	Disc Material	Operating Temperature Range (°C)	Allowable Axial Clearance (±) (mm)	Moment of Inertia (kg･m²)	With or without Keyway	d1 Keyway symbol	d1keyway width b1 (mm)	d1Keyway height t1 (mm)	d2 Keyway symbol	d2 keyway width b2 (mm)	d2 keyway height t2 (mm)
	MYR 93.16	1 Piece(s)		9 Day(s) or more	10	8	8	20	30	1.01~3.00	High torsional rigidity / Backlash 0 / Vibration Absorption / Small	10001~78000	3	0.15	15000	[Others] Polyester Elastomer	Aluminum	-30～90	0.8	1.1X10^-6	Both sides keyway	K4	4	1.8	K4	4	1.8

Basic Information

Type	Jaw Type	Application	Servo Motor	Allowable Misalignment	Angular Misalignment / Eccentricity / Axial Misalignment
Body Material	Aluminum	Allowable Angular Misalignment(deg)	1	Product Category	Coupling body
Allowable Lateral Misalignment Range(mm)	0.02~0.2

Please check the type/dimensions/specifications of the part SJC-20C-GR-8K4X8K4 in the Jaw-Shaped Coupling - Clamping Type - [SJC, SJCA, and SJCB] series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Features
High torsional rigidity

Backlash 0

Vibration Absorption

Small
Clear
type
- SJC-100C
- SJC-14C
- SJC-20C
- SJC-25C
- SJC-55C
- SJC-65C
- SJC-80C
- SJCA-30C
- SJCA-40C
- SJCB-30C
- SJCB-40C
Clear
Shaft Hole Dia.(Already processed) d1(Ø)
3

4

4.5

5

6

6.35

7

8

9.525

10

11

12

14

15

16

18

19

20

22

24

25

26

28

30

32

35

40

45

50

60
Clear
Shaft Hole Dia.(Already processed) d2(Ø)
3

4

4.5

5

6

6.35

7

8

9.525

10

11

12

14

15

16

18

19

20

22

24

25

26

28

30

32

35

40

45

50

60
Clear
Outer Diameter D(Ø)
14

20

25

30

40

55

65

80

104
Clear
Full length L(mm)
22

30

32.5

35

44

55

66

78

90

114

140
Clear
Rated torque range(N•m)
1.01~3.00

3.01~5.00

5.01~10.00

10.01~20.00

20.01~50.00

50.01~100.00

100～Less than 500
Clear
Max. Rotational Speed Range(r/min)
2001~4000

4001~10000

10001~78000
Clear
Rated Torque(N•m)
1.2

2

3

5

7.5

9

10

12.5

17

35

60

95

160

190

300

320

600
Clear
Allowable Lateral Misalignment(mm)
0.1

0.15
Clear
Max. Rotational Speed(r/min)
3500

4500

5500

6500

8500

10000

13000

15000

22000
Clear
Buffer Material
- Polyacetal
- Polyurethane
  - Polyurethane Elastomer
- Others
  - Polyester Elastomer
Clear
Disc Material
- Aluminum
Clear
With or without Keyway
- Both sides keyway
- No Keyway
- One Side Key Way
- With Keyway
Clear
d1 Keyway symbol
K2

K3

K4

K5

K6

K7

K8

K9

K10

K12

K14

K16

K18
Clear
d1keyway width b1(mm)
2

3

4

5

6

7

8

9

10

12

14

16

18
Clear
d1Keyway height t1(mm)
1

1.4

1.8

2.3

2.8

3

3.3

3.8

4.3

4.4
Clear
d2 Keyway symbol
K2

K3

K4

K5

K6

K7

K8

K9

K10

K12

K14

K16

K18
Clear
d2 keyway width b2(mm)
2

3

4

5

6

7

8

9

10

12

14

16

18
Clear
d2 keyway height t2(mm)
1

1.4

1.8

2.3

2.8

3

3.3

3.8

4.3

4.4
Clear
CAD
- 2D
Clear

Days to Ship

All

4 Day(s) or Less

6 Day(s) or Less

7 Day(s) or Less

8 Day(s) or Less

9 Day(s) or Less

10 Day(s) or Less

11 Day(s) or Less

12 Day(s) or Less

61 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 .

Products like this...

Part Number
SJC-100C-GR-20K6X20K8
SJC-100C-GR-20K6X22
SJC-100C-GR-20K6X22K6
SJC-20C-GR-8X8
SJC-20C-GR-8X8K2
SJC-20C-GR-8X8K3

Standard Unit Price	Minimum order quantity	Days to Ship	RoHS	Shaft Hole Dia.(Already processed) d1 (Ø)	Shaft Hole Dia.(Already processed) d2 (Ø)	Outer Diameter D (Ø)	Full length L (mm)	Rated torque range (N•m)	Features	Max. Rotational Speed Range (r/min)	Rated Torque (N•m)	Allowable Lateral Misalignment (mm)	Max. Rotational Speed (r/min)	Buffer Material	Disc Material	Operating Temperature Range (°C)	Allowable Axial Clearance (±) (mm)	Moment of Inertia (kg･m²)	With or without Keyway	d1 Keyway symbol	d1keyway width b1 (mm)	d1Keyway height t1 (mm)	d2 Keyway symbol	d2 keyway width b2 (mm)	d2 keyway height t2 (mm)
MYR 667.82	1 Piece(s)	9 Day(s) or more	10	20	20	104	140	100～Less than 500	High torsional rigidity / Backlash 0 / Vibration Absorption	2001~4000	300	0.15	3500	[Polyurethane] Polyurethane Elastomer	Aluminum	-30～90	20	4.6X10^-3	Both sides keyway	K6	6	2.8	K8	8	3.3
MYR 654.84	1 Piece(s)	9 Day(s) or more	10	20	22	104	140	100～Less than 500	High torsional rigidity / Backlash 0 / Vibration Absorption	2001~4000	300	0.15	3500	[Polyurethane] Polyurethane Elastomer	Aluminum	-30～90	20	4.6X10^-3	One Side Key Way	K6	6	2.8	-	-	-
MYR 667.82	1 Piece(s)	9 Day(s) or more	10	20	22	104	140	100～Less than 500	High torsional rigidity / Backlash 0 / Vibration Absorption	2001~4000	300	0.15	3500	[Polyurethane] Polyurethane Elastomer	Aluminum	-30～90	20	4.6X10^-3	Both sides keyway	K6	6	2.8	K6	6	2.8
MYR 75.91	1 Piece(s)	8 Day(s) or more	10	8	8	20	30	1.01~3.00	High torsional rigidity / Backlash 0 / Small / Vibration Absorption	10001~78000	3	0.15	15000	[Others] Polyester Elastomer	Aluminum	-30～90	0.8	1.1X10^-6	No Keyway	-	-	-	-	-	-
MYR 84.56	1 Piece(s)	9 Day(s) or more	10	8	8	20	30	1.01~3.00	High torsional rigidity / Backlash 0 / Small / Vibration Absorption	10001~78000	3	0.15	15000	[Others] Polyester Elastomer	Aluminum	-30～90	0.8	1.1X10^-6	One Side Key Way	-	-	-	K2	2	1
MYR 84.56	1 Piece(s)	9 Day(s) or more	10	8	8	20	30	1.01~3.00	High torsional rigidity / Backlash 0 / Small / Vibration Absorption	10001~78000	3	0.15	15000	[Others] Polyester Elastomer	Aluminum	-30～90	0.8	1.1X10^-6	One Side Key Way	-	-	-	K3	3	1.4

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Jaw-Shaped Coupling - Clamping Type - [SJC, SJCA, and SJCB] (SJC-20C-GR-8K4X8K4)

(i)Caution

Basic Information

Configure

Specification/Dimensions

Features

type

Shaft Hole Dia.(Already processed) d1(Ø)

Shaft Hole Dia.(Already processed) d2(Ø)

Outer Diameter D(Ø)

Full length L(mm)

Rated torque range(N•m)

Max. Rotational Speed Range(r/min)

Rated Torque(N•m)

Allowable Lateral Misalignment(mm)

Max. Rotational Speed(r/min)

Buffer Material

Disc Material

With or without Keyway

d1 Keyway symbol

d1keyway width b1(mm)

d1Keyway height t1(mm)

d2 Keyway symbol

d2 keyway width b2(mm)

d2 keyway height t2(mm)

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