EL-ELS Type Couplings

Range of product:

ANSI:(EL/ELS)

DIN:(EL/ELS)

Inch size product (Apply to ANSI market)

Metric size product (Apply to DIN market)

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Description
Parameter
Related products

Description

The EL/ELS type coupling is a highly flexible connector designed for machines with uneven torque characteristics or significant axial misalignments. These couplings are ideally suited for applications demanding high levels of torsional stiffness and damping.

Product Features: The EL/ELS type couplings boast exceptional torsional flexibility, effectively eliminating the torsional rebound phenomenon; Thanks to their low torsional stiffness and damping capacity, they are optimal for machines with uneven torque distribution; Offering shaft-to-shaft or flange-to-shaft connections, we can also customize other connection types to meet specific customer requirements, making them suitable for a range of industrial settings including water conservancy, hydropower, new energy, metallurgy, and environmental protection.

Parameter

product range

Standards	Series Type	Size Range
ANSI	EL	EL 35-EL 315
ANSI	ELS	EL S44-EL S250
DIN	EL	EL 90-EL 800
DIN	ELS	EL S112-EL S630

ANSI

el els type couplings769-2

Catalog	Fundamental Dimensions										Bore		Max Torque (In-Lb)	Max Revolution (r/Pm)	Number of Bolts (n)	Wt Lbs
	A	L	B	a	M		C		F		Pilot Bore	Max Bore
	A	L	B	a	M		C1	C2	F1	F2	Pilot Bore	Max Bore
EL-35	39/16	11/8	23/8	5/16	3/4	0.118	17/16		9/16		-	3/4	133	4000	4	2.8
EL-40	4	17/16	25/8	3/8	7/8	0.118	111/16		5/8		-	1	257	4000	4	4.1
EL-44	43/8	19/16	215/16	3/8	7/8	0.118	2		5/8		-	11/8	292	4000	4	5.4
EL-50	5	13/4	33/8	9/16	11/4	0.118	23/16	2	11/16		-	11/8	646	4000	4	7.4
EL-55	51/2	2	4	9/16	11/4	0.118	213/16	21/2	11/16		-	13/8	1151	4000	6	10.0
EL-63	63/8	23/16	41/2	9/16	11/4	0.118	31/8		11/16		-	13/4	1770	4000	8	13.8
EL-71	71/8	21/2	53/16	9/16	11/4	0.118	31/2		11/16		-	2	2036	3500	8	18.5
EL-79	77/8	213/16	511/16	3/4	15/8	0.157	4		7/8		11/16	23/16	3894	3200	8	28.7
EL-88	87/8	31/8	65/8	3/4	15/8	0.157	43/8		7/8		11/16	21/2	4514	2850	8	37.3
EL-100	10	31/2	71/16	1	2	0.157	5		11/8		3/4	213/16	7524	2550	8	54.8
EL-110	11	4	71/8	11/8	21/4	0.157	51/2		11/8	19/16	13/16	31/8	13275	2300	8	77.1
EL-124	123/8	43/8	93/8	11/8	21/4	0.157	61/4		11/8	19/16	11/4	31/2	19470	2050	10	104
EL-140	14	5	101/4	17/16	27/8	0.197	71/16		17/16	23/16	11/4	4	30975	1800	8	163
EL-158	153/4	5	117/8	17/16	27/8	0.197	77/8		17/16	23/16	2	45/16	44250	1600	10	206
EL-180	173/4	51/2	14	17/16	27/8	0.197	87/8		17/16	23/16	23/8	5	62835	1400	12	272
EL-220	22	61/4	173/4	17/16	27/8	0.197	10		17/16	23/16	31/8	51/2	88500	1150	14	426
EL-250	247/8	71/16	207/8	17/16	27/8	0.197	11		17/16	23/16	31/2	63/8	141600	1000	18	559
EL-280	28	813/16	235/8	17/16	27/8	0.197	123/8		23/16		45/16	71/16	221250	900	24	876
EL-281	28	97/8	227/8	13/4	37/16	0.276	14		31/8		411/16	77/8	300900	900	20	1212
EL-315	311/2	107/16	263/8	13/4	37/16	0.276	143/4		31/8		51/8	81/4	398250	800	22	1536

ELS

Catalog

Fundamental Dimensions

Bore

Max Torque (In-Lb)

Max Revolution (rpm)

Bolts (n)

Wt Lbs

Pilot

Max

ELS-44

43/8

19/16

215/16

3/8

7/8

0.118

5/8

1/2

13/16

292

6000

5.7

ELS-50

13/4

33/8

9/16

11/4

0.118

23/16

11/16

1/2

13/8

646

6000

7.8

ELS-55

51/2

9/16

11/4

0.118

213/16

21/2

11/16

1/2

11/2

1151

6000

10.4

ELS-63

63/8

23/16

41/2

9/16

11/4

0.118

31/8

11/16

9/16

17/8

1770

6000

14.4

ELS-71

71/8

21/2

53/16

9/16

11/4

0.118

31/2

11/16

9/16

21/8

2036

5250

19.0

ELS-79

77/8

213/16

511/16

3/4

15/8

0.157

7/8

11/16

23/8

3894

4800

29.7

ELS-88

87/8

31/8

65/8

3/4

15/8

0.157

43/8

7/8

11/16

23/4

4514

4300

37.9

ELS-100

31/2

71/16

0.157

11/8

3/4

215/16

7523

3800

57.3

ELS-110

77/8

11/8

21/4

0.157

51/2

11/8

19/16

13/16

35/16

13275

3450

80.2

ELS-124

123/8

43/8

93/8

11/8

21/4

0.157

61/4

11/8

19/16

11/4

19470

3050

106

ELS-140

101/4

17/16

27/8

0.197

71/16

17/16

23/16

11/4

45/16

30975

2700

168

ELS-158

153/4

117/8

17/16

27/8

0.197

77/8

17/16

23/16

44250

2400

210

ELS-180

173/4

51/2

17/16

27/8

0.197

87/8

17/16

23/16

23/8

51/2

62835

2150

278

ELS-220

61/4

173/4

17/16

27/8

0.197

17/16

23/16

31/8

57/8

88500

1700

445

ELS-250

247/8

71/16

207/8

17/16

27/8

0.197

17/16

23/16

31/2

65/8

141600

1500

585

Conceptual Diagrams For Installing Error

Catalog	Error of Eccentricity (in.)	Error of Angularity (°)	Error of Shaft End-play (in.)
EL90-125	0.004	0.17	士0.083
EL140-180	0.008	0.17	士0.083
EL200-250	0.008	0.17	士0.110
EL280-315	0.012	0.17	士0.110
EL355-710			士0.138
EL711-800			士0.193

DIN

el els type couplings769-3

Catalog	Fundamental dimensions										Bore		Bolts		Max Torque (Nm)	Max Revolution n(rpm)	Moment of inertia (kg.㎠)	G (kg)
	A	B	C1	C2	M	a	L	t	F1	F2	Pilot	Max	Sizes	Qty
EL-90 EL-100 EL-112 EL-125 EL-140	90 100 112 125 140	60 67 75 85 100	35.5 42.5 50 56 71	35.5 42.5 50 50 63	19 23 23 32 32	8 10 10 14 14	28 35.5 40 45 50	3 3 3 3 3	14 16 16 18 18		- - - - -	20 25 28 32 38	M8	4	15	4000	13	1.37
													M10	4	29	4000	24	2.00
													M10	4	33	4000	38	2.64
													M12	4	73	4000	65	3.59
													M12	6	130	4000	110	4.88
EL-160 EL-180 EL-200 EL-224 EL-250	160 180 200 224 250	115 132 145 170 180	80 90 100 112 125		32 32 41 41 51	14 14 20 20 25	56 63 71 80 90	3 3 4 4 4	18 18 22.4 22.4 28		- - 18 18 20	45 50 56 63 71	M12	8	200	4000	190	6.70
													M12	8	230	3500	300	8.98
													M20	8	440	3200	600	13.90
													M20	8	510	2850	960	18.10
													M24	8	850	2550	1800	26.60
EL-280 EL-315 EL-355 EL-400 EL-450	280 315 355 400 450	200 236 260 300 355	140 160 180 200 224		57 57 72 72 72	28 28 35.5 35.5 35.5	100 112 125 125 140	4 4 5 5 5	28 28 35.5 35.5 35.5	40 40 56 56 56	30 32 32 50 60	80 90 100 110 125	M24	8	1500	2300	3200	37.40
													M24	10	2200	2050	5300	50.30
													M30	8	3500	1800	11000	79.20
													M30	10	5000	1600	18000	100.00
													M30	12	7100	1400	29000	132.00
EL-560 EL-630 EL-710 EL-711 EL-800	560 630 710 710 800	450 530 600 580 670	250 280 315 355 375		72 72 72 87 87	35.5 35.5 35.5 45 45	160 180 224 250 265	5 5 5 7 7	35.5 35.5	56 56	80 90 110 120 130	140 160 180 200 210	M30 M30 M30 M42 M42	14 18 24 20 22	10000 16000 25000 34000 45000	1150 1000 900 900 800	68000 110000 220000 320000 510000	207.00 271.00 425.00 588.00 745.00
									56 80 80

ELS

Catalog	Fundamental Dimensions										Bore		Bolts		Max Torque (Nm)	Max Revolution n(rpm)	Moment of inertia (kg.㎠)	G (kg)
	A	B	C1	C2	M	a	L	t	F1	F2	Pilot	Max	Sizes	Qty
ELS-112 ELS-125 ELS-140 ELS-160 ELS-180	112 125 140 160 180	75 85 100 115 132	50 56 71 80 90	50 50 63 80 90	23 32 32 32 32	10 14 14 14 14	40 45 50 56 63	3 3 3 3 3	16 18 18 18 18		13 13 13 14 14	30 30 38 48 55	M10 M12 M12 M12 M12	4 4 6 8 8	33 73 130 200 230	6000 6000 6000 6000 5250	41 69 110 200 320	2.78 3.76 5.06 6.98 9.23




ELS-200 ELS-224 ELS-250 ELS-280 ELS-315	200 224 250 280 315	145 170 180 200 236	100 112 125 140 160		41 41 51 57 57	20 20 25 28 28	71 80 90 100 112	4 4 4 4 4	22.4 22.4 28		18 18 20 30 32	65 70 75 85 100	M20 M20 M24 M24 M24	8 8 8 8 10	440 510 850 1500 2200	4800 4300 3800 3450 3050	6401 1001 900 3400 5600	14.4 18.4 27.8 38.9 51.2
									28 28	40 40
ELS-355 ELS-400 ELS-450 ELS-560 ELS-630	355 400 450 560 630	260 300 355 450 530	180 200 224 250 280		72 72 72 72 72	35.5 35.5 35.5 35.5 35.5	125 125 140 160 180	5 5 5 5 5	35.5 35.5 35.5 35.5 35.5	56 56 56 56 56	32 50 60 80 90	110 125 140 150 170	M30 M30 M30 M30 M30	8 10 12 14 18	3500 5000 7100 10000 16000	2700 2400 2150 1700 1500	12000 19000 31000 72000 120000	81.4 102 135 216 284

Conceptual Diagrams For Installing Error

catalog	Errors of eccentricity (mm)	Errors of angularity (°)	Errors of shaft end-play (mm)
EL90-125	0.10	0.17	士2.10
EL140-180	0.20	0.17	士2.10
EL200-250	0.20	0.17	士2.80
EL280-315	0.30	0.17	士2.80
EL355-710			士3.50
EL711-800			士4.90