What are the characteristics of claw couplings?

Claw couplings can absorb vibration, compensate radial and angular deviation, and are maintenance free, oil resistant and electrically insulated.

What are the applications of claw couplings?

Applicable motor types for claw couplings: recommended for stepping motors and universal motors.

How to select according to the purpose, environment, working conditions?

Please refer to the link page for specific instructions. https://www.misumi.com.cn/special/coupling/select/situation/

A coupling is a part that connects two different rotating bodies (motor shaft, ball screw, etc.) and aims at transmitting torque. The load of assembly adjustment is reduced by absorbing the axis deviation (lateral misalignment, angular misalignment and axial amplitude) between rotating bodies. And in case of accidental overload, the coupling is destroyed and the rotating bodies are disconnected to protect the expensive power part and the whole device.

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Part Number Complete

E-LMPJC20L25-[4,5,6,6.35,7,8,9,9.525,10]-[4,5,6,6.35,7,8,9,9.525,10]

Shaft Bore Dia.1 d1 (or d) Shaft Bore Dia. 2 d2 (or d) O.D. Overall Length type Days to Ship

Specification/Dimensions

Shaft Bore Dia.1 d1 (or d)(Ø)
4

5

6

6.35

7

8

9

9.525

10

11

12

12.7

13

14

15

16

17

18

19

20

22

24

25

28

30

32

35

38

40

42

45

50

55

60

65

70

75

80
Clear
Shaft Bore Dia. 2 d2 (or d)(Ø)
4

5

6

6.35

7

8

9

9.525

10

11

12

12.7

13

14

15

16

17

18

19

20

22

24

25

28

30

32

35

38

40

42

45

50

55

60

65

70

75

80
Clear
O.D.(Ø)
20

25

30

35

40

55

65

80

95

105

120
Clear
Overall Length(mm)
25

30

34

35

40

50

55

66

78

90

114

126

140

160
Clear
type
- E-LMPJC
Clear

Days to Ship

All

9 Day(s) or Less

10 Day(s) or Less

15 Day(s) or Less

18 Day(s) or Less
Clear

Specify Alterations

Jaw Couplings Clamping Type

Name: Jaw Couplings Clamping Type
Brand: MISUMI
Availability: PreOrder

Compare This Product

Check FAQ of this product (4)

Brand :

MISUMI

MiSUMi C-VALUE

MISUMI

Part Number :

E-LMPJC20L25-[4,5,6,6.35,7,8,9,9.525,10]-[4,5,6,6.35,7,8,9,9.525,10]

E-LMPJC20L30-[4,5,6,6.35,7,8,9,9.525,10]-[4,5,6,6.35,7,8,9,9.525,10]

E-LMPJC25L30-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14]-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14]

E-LMPJC25L34-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14]-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14]

E-LMPJC30L35-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15,16]-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15,16]

E-LMPJC30L40-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15,16]-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15,16]

E-LMPJC35L50-[8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20]-[8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20]

E-LMPJC40L40-[8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]-[8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]

E-LMPJC40L50-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]

E-LMPJC40L55-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]

E-LMPJC40L66-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]

E-LMPJC55L78-[12,12.7,13,14,15,16,17,18,19,20,22,24,25,28,30]-[12,12.7,13,14,15,16,17,18,19,20,22,24,25,28,30]

E-LMPJC65L90-[14,15,16,17,18,19,20,22,24,25,28,30,32,35,38]-[14,15,16,17,18,19,20,22,24,25,28,30,32,35,38]

E-LMPJC80L114-[19,20,22,24,25,28,30,32,35,38,40,42,45]-[19,20,22,24,25,28,30,32,35,38,40,42,45]

E-LMPJC95L126-[20,22,24,25,28,30,32,35,38,40,42,45,50,55]-[20,22,24,25,28,30,32,35,38,40,42,45,50,55]

E-LMPJC105L140-[20,22,24,25,28,30,32,35,38,40,42,45,50,55,60]-[20,22,24,25,28,30,32,35,38,40,42,45,50,55,60]

E-LMPJC120L160-[25,28,30,32,35,38,40,42,45,50,55,60,65,70,75,80]-[25,28,30,32,35,38,40,42,45,50,55,60,65,70,75,80]

E-LMPJC20L25-[4,5,6,6.35,7,8,9,9.525,10]-[4,5,6,6.35,7,8,9,9.525,10]

Price :

---
Qty :
Days to Ship :

---
Total Price :

---

Select part number to Order Now/ Add to Cart

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Product Description

Jaw Couplings are an economy item, The price is cheaper than the MISUMI standard product.They offer a wide variety of sizes to choose from.
[Feature]
● Shaft Hole Diameter Minimum/Maximum (mm.): 4 and 80
● Outside Diameter Minimum/Maximum (mm.): 4 and 80
● Overall Length Minimum/Maximum (mm.) : 25 and 160
● Material :
Hub - Aluminum Alloy
Spacer - Polyurethane
[Application]
Jaw Couplings are commonly used in various applications in factory automation systems

Product Overview of Flexible Shaft Couplings

・Flexible Shaft Couplings is composed of 2 metal jaw disks in the coupling part and 1 elastomer resin adjustment ring.
・The resin adjustment ring can alleviate the inertial load impact during start and stop.
・Flexible Shaft Couplings is Easy to disassemble and assemble.
・Recommended for stepper motors and general-purpose motors.

Dimensional Drawing of Flexible Shaft Couplings

E-LMPJC
尺寸图

・Material table of Flexible Shaft Couplings

Parts	Material of Flexible Shaft Couplings	Surface Treatment	Accessory
Hub	Aluminum Alloy	Clear Anodized	Clamp Screw
Spacer	Polyurethane	-	Clamp Screw

Specification Table of Flexible Shaft Couplings

Please follow the selection steps of Flexible Shaft Couplings

～

to select the part no.

Part No.(Type of Flexible Shaft Couplings·DL)	-	d₁	-	d₂
E-LMPJC20L25 E-LMPJC20L30 E-LMPJC30L35	- - -	5 7 7	- - -	6 8 9

Unit：mm

Part No.			d₁、d₂Shaft Hole dia (d₁≤d₂)																																LF	LP	F
Type of Flexible Shaft Couplings	D	L	d₁、d₂Shaft Hole dia (d₁≤d₂)																																LF	LP	F
E-LMPJC	20	L25		4	5	6	6.35	7	8	9	9.525	10																							16.6	8.6	4.0
	20	L30		4	5	6	6.35	7	8	9	9.525	10																							19.1	8.6	5.3
	25	L30			5	6	6.35	7	8	9	9.525	10	11	12	12.7	13	14																		20.5	11.6	5.6
	25	L34			5	6	6.35	7	8	9	9.525	10	11	12	12.7	13	14																		22.5	11.6	5.6
	30	L35			5	6	6.35	7	8	9	9.525	10	11	12	12.7	13	14	15	16																22.5	10.9	5.75
	30	L40			5	6	6.35	7	8	9	9.525	10	11	12	12.7	13	14	15	16																25	10.9	7
	35	L50							8	9	9.525	10	11	12	12.7	13	14	15	16	17	18	19	20												30	11.5	10
	40	L40							8	9	9.525	10	11	12	12.7	13	14	15	16	17	18	19	20
	40	L50							8	9	9.525	10	11	12	12.7	13	14	15	16	17	18	19	20	22											31.1	13.7	10
	40	L55							8	9	9.525	10	11	12	12.7	13	14	15	16	17	18	19	20	22											33.6	13.7	10
	40	L66							8	9	9.525	10	11	12	12.7	13	14	15	16	17	18	19	20	22											39.1	13.7	12.75
	55	L78												12	12.7	13	14	15	16	17	18	19	20	22	24	25	28	30							46.2	16.1	15.5
	65	L90															14	15	16	17	18	19	20	22	24	25	28	30	32	35	38				52.9	16.7	18.1
	80	L114																				19	20	22	24	25	28	30	32	35	38	40	42	45	67	22.5	15.5
	95	L126	20	22	24	25	28	30	32	35	38	40	42	45	50	55																			74.5	24.0	20.0
	105	L140	20	22	24	25	28	30	32	35	38	40	42	45	50	55	60																		83.2	26.4	20.0
	120	L160				25	28	30	32	35	38	40	42	45	50	55	60	65	70	75	80														93.7	27.4	25.0

■Characteristic Values of Flexible Shaft Couplings

Part No. of Flexible Shaft Couplings			Rated 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）	Clamp Screw		Mass g
Type of Flexible Shaft Couplings	D	L	Rated 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）	M	Tightening Torque (N.m)	Mass g
E-LMPJC
	20	L25	2.8	1	0.02	55	17000	1.0x10^-6	±0.6	M3	1.5	15
	20	L30	2.8	1	0.02	55	17000	1.1x10^-6	±0.6	M4	3.5	19
	25	L30	6	1	0.02	65	16000	5.2x10^-6	±0.6	M4	3.5	33
	25	L34	6	1	0.02	65	16000	5.2x10^-6	±0.6	M4	3.5	42
	30	L35	6.5	1	0.02	72	12000	6.2x10^-6	±0.6	M4	3.5	50
	30	L40	6.5	1	0.02	72	12000	6.2x10^-6	±0.6	M4	8	60
	35	L50	15	1	0.02	200	10000	8.1x10^-6	±0.6	M5	8	45
	40	L40	32	1	0.02	450	10000	3.8x10^-5	±0.8			115
	40	L50		1	0.02	450	10000	3.8x10^-5	±0.8			115
	40	L55		1	0.02	500	10000	3.8x10^-5	±0.8			127
	40	L66		1	0.02	550	10000	3.9x10^-5	±0.8			154
	55	L78	46	1	0.02	1500	8000	1.6x10^-3	±0.8	M6	13	341
	65	L90	109	1	0.02	2800	6000	3.8x10^-3	±0.8	M8	28	583
	80	L114	135	1	0.02	3500	4600	1.8x10^-3	±1.0	M8	28	1000
	95	L126	250	1	0.02	5000	3800	1.8x10^-3	±1.0	M10	40	1500
	105	L140	420	1	0.02	5400	3400	3.1x10^-3	±1.0	M12	75	2000
	120	L160	520	1	0.02	6500	3000	4.3x10^-3	±1.0	M12	75	2500

The Flexible Shaft Couplings allowable torque varies with temperature.

Press the adjustment ring into the body to assemble.
Flexible Shaft Couplings

Press Spacer to the body when install.

Shaft Bore Dia. d₁·d₂	b(Keyway Width)		t Keyway Depth	Keyway Nominal Dim. b X h
Shaft Bore Dia. d₁·d₂	LK	RK	t Keyway Depth	Keyway Nominal Dim. b X h
8~10	3	3	1.4	3x3
11~12	4	4	1.8	4x4
13~17	5	5	2.3	5x5
18~22	6	6	2.8	6x6
23~30	8	8	3.3	8x7
31~38	10	10	3.3	10x8
39~44	12	12	3.3	12x8
45~50	14	14	3.8	14x9
51~58	16	16	4.3	16x10
59~65	18	18	4.4	18x11
66~75	20	20	4.9	20x12
76~85	22	22	5.4	22x14
86~95	25	25	5.4	25x14

Product Features of Flexible Shaft Couplings

The characteristics of Flexible Shaft Couplings are as follows:
It has a simple structure, no lubrication required / easy to repair and inspect / maintenance-free. It can operated continuously for a long time.
Polyurethane elastic parts are wear-resistant and oil-resistant, have large load capacity, long service life, and are Flexible Shaft Couplings is safe and reliable.
This product is suitable for medium and high-speed applications.

Usage Method of Flexible Shaft Couplings

■Mounting method of Flexible Shaft Couplings
STEP1 Insert the coupling
Confirm that the clamping bolt has been unscrewed, and then remove the dust, foreign matter and oil from the shaft and Flexible Shaft Couplings bore.
Then, when inserting the coupling into the shaft, please be careful not to put the disc under excessive stress such as compression or tension.
STEP2 Use fixture to adjust
Please use fixture to adjust and fix the concentricity of the left and right hubs of the Flexible Shaft Couplings with high accuracy.
STEP3 Simple lateral misalignment and angular misalignment confirmation
Under the condition of unscrewed bolts, make the Flexible Shaft Couplings slide axially and confirm its smooth movement.
Then, rotate the coupling to make sure it moves smoothly.
Lateral misalignment is not allowed for single disc type coupling, so carry out positioning securely.

STEP4 Installation of Flexible Shaft Couplings
Please adjust the shaft insertion amount according to the dimension ℓ in the product catalog, and use a torque wrench to tighten with the specified torque.
＊ If the specified torque cannot be reached once, please cross fasten the left and right clamps twice or three times.

Example Use of Flexible Shaft Couplings

Use example of Flexible Shaft Couplings 1: motor × gear box
Example of Use

Use example of Flexible Shaft Couplings 3: motor × encoder

Use example of Flexible Shaft Couplings 2: motor × ball screw
Example of Use

Use example of Flexible Shaft Couplings 4: motor × measuring tester

Precautions of Flexible Shaft Couplings

■ Calibration and adjustment of Flexible Shaft Couplings
1. The Flexible Shaft Couplings allows axis deviation, and transmits rotation angle and torque, but when the axis deviation exceeds the allowable value, vibration will occur or the service life will be drastically reduced. Be sure to make calibration andadjustment.
2. Axis deviation includes lateral misalignment (parallel error of two axes), angular misalignment (angular error of two axes) and axial amplitude (axial movement of shaft).
Please calibrate and adjust the shaft to ensure that the axis deviation is below the allowable value recorded in the dimension and performance table of each product.
3. The allowable value of axis deviation recorded in the dimension and performance table refers to the situation when either lateral misalignment, angular misalignment or axial amplitude occurs alone. When more than two axis deviationsoccur at the same time, the corresponding allowable values are halved respectively.
4. Axis deviation not only occurs when assembling to the device, but also is caused by vibration, thermal expansion and bearing wear in operation. Therefore, it is recommended to set the axis deviation below 1/3 of the allowable value.

: 30; 60; 90

Part Number
E-LMPJC20L25-[4,5,6,6.35,7,8,9,9.525,10]-[4,5,6,6.35,7,8,9,9.525,10]
E-LMPJC20L30-[4,5,6,6.35,7,8,9,9.525,10]-[4,5,6,6.35,7,8,9,9.525,10]
E-LMPJC25L30-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14]-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14]
E-LMPJC25L34-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14]-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14]
E-LMPJC30L35-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15,16]-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15,16]
E-LMPJC30L40-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15,16]-[5,6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15,16]
E-LMPJC35L50-[8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20]-[8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20]
E-LMPJC40L40-[8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]-[8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]
E-LMPJC40L50-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]
E-LMPJC40L55-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]
E-LMPJC40L66-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]-[7,8,9,9.525,10,11,12,12.7,13,14,15,16,17,18,19,20,22]
E-LMPJC55L78-[12,12.7,13,14,15,16,17,18,19,20,22,24,25,28,30]-[12,12.7,13,14,15,16,17,18,19,20,22,24,25,28,30]
E-LMPJC65L90-[14,15,16,17,18,19,20,22,24,25,28,30,32,35,38]-[14,15,16,17,18,19,20,22,24,25,28,30,32,35,38]
E-LMPJC80L114-[19,20,22,24,25,28,30,32,35,38,40,42,45]-[19,20,22,24,25,28,30,32,35,38,40,42,45]
E-LMPJC95L126-[20,22,24,25,28,30,32,35,38,40,42,45,50,55]-[20,22,24,25,28,30,32,35,38,40,42,45,50,55]
E-LMPJC105L140-[20,22,24,25,28,30,32,35,38,40,42,45,50,55,60]-[20,22,24,25,28,30,32,35,38,40,42,45,50,55,60]
E-LMPJC120L160-[25,28,30,32,35,38,40,42,45,50,55,60,65,70,75,80]-[25,28,30,32,35,38,40,42,45,50,55,60,65,70,75,80]

Price	Name	Minimum Order Qty.	Days to Ship	RoHS	Shaft Bore Dia.1 d1 (or d) (Ø)	Shaft Bore Dia. 2 d2 (or d) (Ø)	O.D. (Ø)	Overall Length (mm)
-	ECONOMY EL JAW COUPLING	1 Piece(s)	9 Day(s)	10	4 ～ 10	4 ～ 10	20	25
-	ECONOMY EL JAW COUPLING	1 Piece(s)	10 Day(s)	10	4 ～ 10	4 ～ 10	20	30
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	5 ～ 14	5 ～ 14	25	30
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	5 ～ 14	5 ～ 14	25	34
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	5 ～ 16	5 ～ 16	30	35
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	5 ～ 16	5 ～ 16	30	40
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	8 ～ 20	8 ～ 20	35	50
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	8 ～ 22	8 ～ 22	40	40
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	7 ～ 22	7 ～ 22	40	50
-	ECONOMY EL JAW COUPLING	1 Piece(s)	10 Day(s)	10	7 ～ 22	7 ～ 22	40	55
-	ECONOMY EL JAW COUPLING	1 Piece(s)	10 Day(s)	10	7 ～ 22	7 ～ 22	40	66
-	ECONOMY EL JAW COUPLING	1 Piece(s)	18 Day(s)	10	12 ～ 30	12 ～ 30	55	78
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	14 ～ 38	14 ～ 38	65	90
-	ECONOMY EL JAW COUPLING	1 Piece(s)	10 Day(s)	10	19 ～ 45	19 ～ 45	80	114
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	20 ～ 55	20 ～ 55	95	126
-	ECONOMY EL JAW COUPLING	1 Piece(s)	15 Day(s)	10	20 ～ 60	20 ～ 60	105	140
-	ECONOMY EL JAW COUPLING	1 Piece(s)	9 Day(s)	10	25 ～ 80	25 ～ 80	120	160

Basic Information

Series Name	Jaw	Application	Standard / For Servo Motors / Stepping Motor	Features	High Torque Type / Low Moment of Inertia / Vibration Insulation
Allowable Misalignment	Angular Misalignment / Eccentricity / Axial Misalignment	Body Material	Aluminum Alloy	Product Category	Coupling Main Body
Buffer Material	Polyurethane	Operating Temperature(°C)	-20::60	Shaft Tightening Method	Fastening Bolt
Shaft Hole Shape	Standard

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently Asked Questions (FAQ)

Question: What are the characteristics of claw couplings?: Answer: Claw couplings can absorb vibration, compensate radial and angular deviation, and are maintenance free, oil resistant and electrically insulated.
Question: What are the applications of claw couplings?: Answer: Applicable motor types for claw couplings: recommended for stepping motors and universal motors.
Question: How to select according to the purpose, environment, working conditions?: Answer: Please refer to the link page for specific instructions. https://www.misumi.com.cn/special/coupling/select/situation/
Question: What is a coupling?: Answer: A coupling is a part that connects two different rotating bodies (motor shaft, ball screw, etc.) and aims at transmitting torque. The load of assembly adjustment is reduced by absorbing the axis deviation (lateral misalignment, angular misalignment and axial amplitude) between rotating bodies. And in case of accidental overload, the coupling is destroyed and the rotating bodies are disconnected to protect the expensive power part and the whole device.