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.

Is there any reference available for the selection of hole diameter at both ends of the product?

Equal diameter of d1 and d2=d1＋0.5 Unequal diameter of d1 and d2=diameter of large shaft hole+0.5

How to achieve the effect of applicable lateral misalignment and angular misalignment in product design?

The plate spring formed by the slit allows lateral misalignment, angular misalignment and end play.

What does the product need for applications of lateral misalignment and angular misalignment?

Lateral misalignment, angular misalignment and axial amplitude are all single allowable values. If there are multiple deviations at the same time, the allowable value of each deviation will be reduced to 1/2 of the original value.

Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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(7 Part Numbers Available)

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Part Number Complete

E-LMPLCN16-[3,4,4.5,5,6,6.35,7,8]-[3,4,4.5,5,6,6.35,7,8]

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)
3

4

4.5

5

6

6.35

7

8

9

9.525

10

11

12

13

14

15

16

17

18

19

20

22

24

25

28

30

32

35

38

40
Clear
Shaft Bore Dia. 2 d2 (or d)(Ø)
3

4

4.5

5

6

6.35

7

8

9

9.525

10

11

12

13

14

15

16

17

18

19

20

22

24

25

28

30

32

35

38

40
Clear
O.D.(Ø)
16

20

25

32

40

50

63
Clear
Overall Length(mm)
23

26

31

41

56

71

90
Clear
type
- E-LMPLCN
Clear

Days to Ship

All

11 Day(s) or Less

16 Day(s) or Less
Clear

Specify Alterations

Slit Couplings Long, Clamping Type (Part Number)

Name: Slit Couplings Long, Clamping Type
Brand: MISUMI
Availability: PreOrder

Check FAQ of this product (5 items)

Brand :

MISUMI

MiSUMi Economy

MISUMI

Part Number :

E-LMPLCN16-[3,4,4.5,5,6,6.35,7,8]-[3,4,4.5,5,6,6.35,7,8]

Order Qty :
Price :

---
Total Price :

---
Days to ship :

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Product Description

This is an economy item, The price is cheaper than the MISUMI standard product.

Product Overview

■ Feature
・Flexible Shaft Couplings zero backlash
・Flexible Shaft Couplings with completely integrated structure, featuring slits in cylindrical hub.
・Flexible Shaft Couplings extremely high torsional stiffness and low moment of inertia.
・The leaf springs formed by the slits allow for eccentricity, angular misalignment, and Axial Misalignment.
・Flexible Shaft Couplings suitable for use in actuators, precision XY stages, indexing tables, etc.

Dimensional Drawing

Material table

Type	Material	Surface Treatment	Accessory
E-LMPLCN	Aluminum Alloy	Clear Anodized	Hexagon socket bolts

Specification Table

Please follow the selection steps Flexible Shaft Couplings

～

to select the part no. Specify Shaft Hole Dia. in therange d₁≤d_2.

Part No.(Type·D)	-	d₁	-	d₂
E-LMPLCN16	-	3	-	4
E-LMPLCN20	-	4	-	4.5

Part No.		d₁、d₂Shaft Hole Dia. (d₁≤d₂)																													L
Type	D	d₁、d₂Shaft Hole Dia. (d₁≤d₂)																													L
E-LMPLCN	16	3	4	4.5	5	6																									23
	20	3	4	4.5	5	6	6.35	7	8	9	9.525	10																			26*
	25	3	4	4.5	5	6	6.35	7	8	9	9.525	10	11	12																	31*
	32					6	6.35	7	8	9	9.525	10	11	12	14	15	16														41*
	40					6	6.35	7	8	9	9.525	10	11	12	14	15	16	17	18	19	20										56
	50					6	6.35	7	8	9	9.525	10	11	12	14	15	16	17	18	19	20	22	24	25	28	30	32				71
	63								8	9	9.525	10	11	12	14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	90

If the slip torque is less than the allowable torque, use under the slip torque.
Flexible Shaft Couplings

*L dimension updated in March 2024.

Part No.		L	F	Clamp Screw		Rated Torque	Mass
Type	D	L	F	M	Tightening Torque (N.m)	N.m	g
E-LMPLCN	16	23	3.25	M2.5	0.5	0.5	9.2
	20	26	3.75	M3	1	1	16
	25	31	4.25	M3	1.5	2	28
	32	41	5.4*	M4	2.8	4	64
	40	56	8*	M5	7	8	140
	50	71	11*	M6*	12	13	272
	63	90	14.7*	M8*	16	22	530

*F dimension and Clamp Screw M size updated in March 2024.

■Characteristic Values

D	Max. Rotational Speed (rpm)	Moment of Inertia (kg·m²)	Static Torsional Spring Constant (N·m/rad)	Angular Misalignment ( ° )	Lateral Misalignment (mm)	Allowable Axial Misalignment (mm)
16	9000	3.4×10^－7	80	2	0.1	±0.3
20	7500	9.1×10^－7	170	2	0.1	±0.3
25	6000	2.6×10^－6	380	2	0.15	±0.4
32	4600	9.7×10^－6	500	2	0.15	±0.5
40	3600	3.3×10^－5	600	2	0.2	±0.5
50	3000	9.0×10^－5	780	2	0.2	±0.5
63	2200	3.0×10^－4	1000	2	0.2	±0.5

Product Features

Flexible Shaft Couplings with zero backlash, this product is suitable for applications where rotational accuracy is required.

Precautions

■ Calibration adjustment
1. The coupling allows transmission of axis deviation, rotation angle and torque, but if the axis deviation exceeds the allowable value, vibration may occur or the lifespan will be drastically reduced. Please be sure to make corrections.
2. Axial deviation includes eccentricity (parallel error of two axes), declination (angular error of two axes), and axial amplitude (axial movement of the axes).
Perform calibration adjustment for the shaft so that the shaft center deviation is below the allowable value specified in the product dimensions and performance table.
3. The axial deviation tolerance values stated in the dimensions and performance tables refer to the situation when one of eccentricity, declination, and axial amplitude occurs individually. If two or more axial deviations occursimultaneously, the respective allowable values are reduced by half.
4. Axial deviation not only occurs when assembling the device, but is also a major cause of vibration, thermal expansion, and bearing wear during operation. It is recommended that the axis deviation be set to less than 1/3 of theallowable value.

Example of Use

: 30; 60; 90

Part Number
E-LMPLCN16-[3,4,4.5,5,6,6.35,7,8]-[3,4,4.5,5,6,6.35,7,8]
E-LMPLCN20-[3,4,4.5,5,6,6.35,7,8,9,9.525,10]-[3,4,4.5,5,6,6.35,7,8,9,9.525,10]
E-LMPLCN25-[3,4,4.5,5,6,6.35,7,8,9,9.525,10,11,12]-[3,4,4.5,5,6,6.35,7,8,9,9.525,10,11,12]
E-LMPLCN32-[6,6.35,7,8,9,9.525,10,11,12,13,14,15,16]-[6,6.35,7,8,9,9.525,10,11,12,13,14,15,16]
E-LMPLCN40-[6,6.35,7,8,9,9.525,10,11,12,14,15,16,17,18,19,20]-[6,6.35,7,8,9,9.525,10,11,12,14,15,16,17,18,19,20]
E-LMPLCN50-[6,6.35,7,8,9,9.525,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32]-[6,6.35,7,8,9,9.525,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32]
E-LMPLCN63-[8,9,9.525,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32,35,38,40]-[8,9,9.525,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32,35,38,40]

Price	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)
-	1 Piece(s)	11 Day(s)	10	3 ～ 8	3 ～ 8	16	23
-	1 Piece(s)	11 Day(s)	10	3 ～ 10	3 ～ 10	20	26
-	1 Piece(s)	11 Day(s)	10	3 ～ 12	3 ～ 12	25	31
-	1 Piece(s)	11 Day(s)	10	6 ～ 16	6 ～ 16	32	41
-	1 Piece(s)	16 Day(s)	10	6 ～ 20	6 ～ 20	40	56
-	1 Piece(s)	16 Day(s)	10	6 ～ 32	6 ～ 32	50	71
-	1 Piece(s)	16 Day(s)	10	8 ～ 40	8 ～ 40	63	90

Basic Information

Series Name	Slit	Application	Standard / For Servo Motors / Stepping Motor	Features	Zero Backlash / Low Moment of Inertia
Allowable Misalignment	Angular Misalignment / Eccentricity / Axial Misalignment	Body Material	Aluminum Alloy	Allowable Angular Misalignment(deg)	1
Product Category	Coupling Main Body	Type	Standard

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

Frequently asked question (FAQ)

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.
Question: Is there any reference available for the selection of hole diameter at both ends of the product?: Answer: Equal diameter of d1 and d2=d1＋0.5
Unequal diameter of d1 and d2=diameter of large shaft hole+0.5
Question: How to achieve the effect of applicable lateral misalignment and angular misalignment in product design?: Answer: The plate spring formed by the slit allows lateral misalignment, angular misalignment and end play.
Question: Which mechanism parts does the product apply to?: Answer: With zero backlash, it is suitable for applications where rotational accuracy is required.
Question: What does the product need for applications of lateral misalignment and angular misalignment?: Answer: Lateral misalignment, angular misalignment and axial amplitude are all single allowable values. If there are multiple deviations at the same time, the allowable value of each deviation will be reduced to 1/2 of the original value.

Check other FAQ (2 items) Hide

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