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Carbon Steel High Rigidity Single/Double Disc Coupling, Keyway Type (Part Numbers)

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MISUMI

MiSUMi Economy

MISUMI

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

RoHS

Part Number

Configured Part Number is shown.

Drawing
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Part Numbers
Specifications

Product Overview

A high-rigidity, flexible coupling with a diaphragm fastening mechanism.
[Features]
• Standardized 10 models and 45 sizes with shaft diameters from φ12 (12mm) to φ50 (50mm).
• High torsional stiffness due to the ingenuity of the diaphragm fastening mechanism.
• Allows for deflection angles and end clearances.
• Low moment of inertia.
[Applications]
• Machine tools, precision platforms, etc.

Dimensions

Precautions

Static torsional stiffness, moment of inertia, and weight are values at the maximum shaft diameter.

Eccentricity, deflection angle, and axial amplitude are individual allowable values. If multiple deviations occur simultaneously, the allowable values for each deviation are reduced to half of their original values.

For selection criteria and calibration adjustments, please refer to

pages 788 and 789.

Eccentricity is not permitted for single-diaphragm types.

Use Cases

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; 60; 90

Part Number
E-LDBN41-D65-[12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32]-[12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32]
E-LDBN41-D87-[17,18,19,20,22,24,25,28,30,32,34,35,36,38]-[17,18,19,20,22,24,25,28,30,32,34,35,36,38]
E-LDBN41-D94-[17,18,19,20,22,24,25,28,30,34,35,36,38,40,42]-[17,18,19,20,22,24,25,28,30,34,35,36,38,40,42]
E-LDBN41-D104-[19,20,22,24,25,28,30,34,35,36,38,40,42,45,46,48]-[19,20,22,24,25,28,30,34,35,36,38,40,42,45,46,48]
E-LDBN41-D126-[19,20,22,24,25,28,30,34,35,36,38,40,42,45,46,48,50]-[19,20,22,24,25,28,30,34,35,36,38,40,42,45,46,48,50]
E-LDBN46-D65-[12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32]-[12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32]
E-LDBN46-D87-[17,18,19,20,22,24,25,28,30,32,34,35,36,38]-[17,18,19,20,22,24,25,28,30,32,34,35,36,38]
E-LDBN46-D94-[17,18,19,20,22,24,25,28,30,34,35,36,38,40,42]-[17,18,19,20,22,24,25,28,30,34,35,36,38,40,42]
E-LDBN46-D104-[19,20,22,24,25,28,30,32,34,35,36,38,40,42,45,46,48]-[19,20,22,24,25,28,30,32,34,35,36,38,40,42,45,46,48]
E-LDBN46-D126-[19,20,22,24,25,28,30,34,35,36,38,40,42,45,46,48,50]-[19,20,22,24,25,28,30,34,35,36,38,40,42,45,46,48,50]

Standard Unit Price	Minimum order quantity	Days to Ship	O.D. (Ø)	Overall Length (mm)	Allowable Torque (N•m)	Allowable Angular Misalignment (deg)	Allowable Lateral Misalignment (mm)	Max. Rotational Speed (r/min)	Allowable Axial Misalignment (mm)	Moment of Inertia (kg・m2)	Single/Double	Shaft Bore Dia.1 d1 (or d)(Ø)	Shaft Bore Dia. 2 d2 (or d)(Ø)
-	1 Piece(s)	10 Day(s) or more	65	55.5	120	0.5	0.02	4000	±0.3	1.13×10^-4	Single	12 ～ 17	12 ～ 17
-	1 Piece(s)	10 Day(s) or more	87	67	230	0.5	0.02	4000	±0.3	1.4×10^-4	Single	-	-
-	1 Piece(s)	10 Day(s) or more	94	68	360	0.5	0.02	4000	±0.3	1.2×10^-3	Single	-	-
-	1 Piece(s)	10 Day(s) or more	104	80	385.6	0.5	0.02	3500	±0.5	1.3×10^-3	Single	-	-
-	1 Piece(s)	10 Day(s) or more	126	91	689	0.5	0.02	3000	±0.5	2.3×10^-3	Single	-	-
-	1 Piece(s)	10 Day(s) or more	65	77	120	1	0.2	4000	±0.6	1.1×10^-4	Double	12 ～ 17	12 ～ 17
-	1 Piece(s)	10 Day(s) or more	87	94	230	1	0.2	4000	±0.6	1.5×10^-4	Double	-	-
-	1 Piece(s)	10 Day(s) or more	94	98	360	1	0.2	4000	±0.6	1.2×10^-3	Double	-	-
-	1 Piece(s)	10 Day(s) or more	104	112	385.6	1	0.25	3500	±0.9	1.4×10^-3	Double	-	-
-	1 Piece(s)	10 Day(s) or more	126	126	689	1	0.25	3000	±0.9	2.6×10^-3	Double	-	-

Dimensions

Specifications

Please follow the selection steps

choose the type and parameters before placing your order. Please specify the shaft bore diameter within the range of _d1 ≤ _{d2 .}

Type D	-	d ₁	-	d ₂
E-LDBN41-D65	-	18	-	28
E-LDBN46-D87	-	20	-	30

Type		Choose between d1 _and d2 ₍ but _d1 ≤ _d2 )																									L
Type	D	Choose between d1 _and d2 ₍ but _d1 ≤ _d2 )																									L
E-LDBN41-D Single-film type	65	12	12.7	14	15	16	17	18	19	20	22	24	25	28	30	32											55.5
	87						17	18	19	20	22	24	25	28	30	32	34	35	36	38							67
	94						17	18	19	20	22	24	25	28	30		34	35	36	38	40	42					68
	104								19	20	22	24	25	28	30		34	35	36	38	40	42	45	46	48		80
	126								19	20	22	24	25	28	30		34	35	36	38	40	42	45	46	48	50	91

Type		Choose between d1 _and d2 ₍ but _d1 ≤ _d2 )																									L
Type	D	Choose between d1 _and d2 ₍ but _d1 ≤ _d2 )																									L
E-LDBN46-D Dual-film type	65	12	12.7	14	15	16	17	18	19	20	22	24	25	28	30	32											77
	87						17	18	19	20	22	24	25	28	30	32	34	35	36	38							94
	94						17	18	19	20	22	24	25	28	30		34	35	36	38	40	42					98
	104								19	20	22	24	25	28	30		34	35	36	38	40	42	45	46	48		112
	126								19	20	22	24	25	28	30		34	35	36	38	40	42	45	46	48	50	126

Type		Permissible torque (N·m)	Permissible eccentricity (mm)	Permissible deflection angle (°)	Permissible axial deviation (mm)	Permissible speed (RPM)	Static torsional stiffness (Nm/rad)	Moment of inertia (Nm)	Fastening bolts		Weight (g)
Type	D	Permissible torque (N·m)	Permissible eccentricity (mm)	Permissible deflection angle (°)	Permissible axial deviation (mm)	Permissible speed (RPM)	Static torsional stiffness (Nm/rad)	Moment of inertia (Nm)	M	Locking torque Nm	Weight (g)
E-LDBN41-D Single-film type	65	120	0.02	0.5	±0.30	4000	33600	1.13x10⁻⁴	M6	7	480
	87	230	0.02	0.5	±0.30	4000	78000	1.4 x ^10⁻⁴	M8	15	1280
	94	360	0.02	0.5	±0.30	4000	89000	1.2 x ^10⁻³	M10	25	2340
	104	385.6	0.02	0.5	±0.50	3500	156000	1.3 x ^10⁻³	M10	25	3000
	126	689	0.02	0.5	±0.50	3000	168000	2.3x10⁻³	M12	55	3460

Type		Permissible torque (N·m)	Permissible eccentricity (mm)	Permissible deflection angle (°)	Permissible axial deviation (mm)	Permissible speed (RPM)	Static torsional stiffness (Nm/rad)	Moment of inertia (Nm)	Fastening bolts		Weight (g)
Type	D	Permissible torque (N·m)	Permissible eccentricity (mm)	Permissible deflection angle (°)	Permissible axial deviation (mm)	Permissible speed (RPM)	Static torsional stiffness (Nm/rad)	Moment of inertia (Nm)	M	Locking torque Nm	Weight (g)
E-LDBN46-D Dual-film type	65	120	0.2	1	±0.60	4000	16800	1.1x10⁻⁴	M6	7	756
	87	230	0.2	1	±0.60	4000	39000	1.5 x ^10⁻⁴	M8	15	1660
	94	360	0.2	1	±0.60	4000	44500	1.2 x ^10⁻³	M10	25	2800
	104	385.6	0.25	1	±0.90	3500	78000	1.4 x ^10⁻³	M10	25	3600
	126	689	0.25	1	±0.90	3000	84000	2.6 x ^10⁻³	M12	55	3700

Material Specifications

Type	Membrane type	main body		diaphragm	Attachment
		Material	Surface treatment	Material
E-LDBN41-D	Single-film type	S45C	Ferric oxide protective film	SUS304	Locking bolts and stop screws

Alteration

Shaft hole _diameter d1 _· d2	keyway width b	Keyway depth t	Key nominal size b x h
8-10	3	1.4	3x3
11～12	4	1.8	4x4
12.7～17	5	2.3	5x5
18～22	6	2.8	6x6
23-30	8	3.3	8x7
31～38	10	3.3	10x8
39～44	12	3.3	12x8
45～50	14	3.8	14x9

Basic Information

Series Name	Disc	Application	For Servo Motors / Stepping Motor	Features	High Torsional Rigidity / High Torque Type / Zero Backlash
Product Category	Coupling Main Body	Shaft Hole Shape	Both-end keyed bores	Shaft Tightening Method	Fastening bolts , Set screws

Configure

10 Part Numbers

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Completed

Specification/Dimensions

O.D.(Ø)
65

87

94

104

126
Clear
Overall Length(mm)
55.5

67

68

77

80

91

94

98

112

126
Clear
Allowable Torque(N•m)
120

230

360

385.6

689
Clear
Allowable Angular Misalignment(deg)
0.5

1
Clear
Allowable Lateral Misalignment(mm)
0.02

0.2

0.25
Clear
Max. Rotational Speed(r/min)
3000

3500

4000
Clear
Single/Double
- Double
- Single
Clear
Shaft Bore Dia.1 d1 (or d)(Ø)
12

12.7

14

15

16

17
Clear
Shaft Bore Dia. 2 d2 (or d)(Ø)
12

12.7

14

15

16

17
Clear
type
- E-LDBN
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

10 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 .

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Carbon Steel High Rigidity Single/Double Disc Coupling, Keyway Type (Part Numbers)

Product Overview

Dimensions

Precautions

Use Cases

Part Number

Dimensions

Specifications

Material Specifications

Alteration

Basic Information

Configure

Specification/Dimensions

O.D.(Ø)

Overall Length(mm)

Allowable Torque(N•m)

Allowable Angular Misalignment(deg)

Allowable Lateral Misalignment(mm)

Max. Rotational Speed(r/min)

Single/Double

Shaft Bore Dia.1 d1 (or d)(Ø)

Shaft Bore Dia. 2 d2 (or d)(Ø)

type

CAD

Days to Ship

Specify Alterations

Additional Products in this Category

Tech Support

Payment Method

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