FL-FLS Type Couplings

Range of product:

ANSI:(FL/FLS)

DIN:(FL/FLS)

Inch size product (Apply to ANSI market)

Metric size product (Apply to DIN market)

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Description
Parameter
Related products

Description

FL/FLS Type Couplings are a coupling product widely used in various mechanical equipment, available in multiple sizes and standards to meet diverse specific application and design requirements across various markets.

The FL series, a flywheel coupling, is primarily used in off-road construction equipment such as crawler loaders, aerial work platforms, and excavators, among other mobile hydraulic applications. Specific parameters for the FLS series include basic dimensions, bore size, bolt quantity, maximum torque, maximum speed, and moment of inertia.

Parameter

product range

Standards	Series Type	Size Range
ANSI/DIN	FL	FL 100-FL 630
ANSI/DIN	FLS	FLS112-FL S630

ANSI

fl fls type couplings181-2

Catalog	Fundamental Dimensions						Bore		Max Torque (in-lb)	Max Revolution rpm	Number of Bolts n	Wt lbs
Catalog	A	L	C	B	F	a	Pilot Bore	Max Bore	Max Torque (in-lb)	Max Revolution rpm	Number of Bolts n	Wt lbs
FL-40	4	17/16	15/8	25/8	5/8	3/8	-	1	558	4000	4	4.6
FL-44	43/8	19/16	2	3	5/8	3/8	-	11/8	797	4000	4	6.1
FL-50	5	13/4	23/16	33/8	23/32	9/16	-	11/4	1151	4000	4	8.5
FL-55	51/2	2	213/16	4	23/32	9/16	-	11/2	1947	4000	6	11.8
FL-63	63/8	23/16	31/8	49/16	23/32	9/16	-	13/4	3186	4000	8	15.8
FL-71	71/8	21/2	31/2	51/4	23/32	9/16	-	2	4425	3800	8	20.8
FL-79	77/8	213/16	4	53/4	7/8	3/4	11/16	23/16	6284	3550	8	32.4
FL-88	87/8	31/8	43/8	611/16	7/8	3/4	11/16	21/2	8850	3150	8	41.7
FL-100	10	31/2	5	71/8	11/8	1	3/4	213/16	12390	2800	8	60.4
FL-110	11	4	51/2	77/8	11/8	11/8	13/16	31/8	17700	2500	8	80.3
FL-124	123/8	43/8	61/4	93/8	11/8	11/8	11/4	31/2	24780	2240	10	108
FL-140	14	5	71/16	101/4	17/16	17/16	11/4	4	35400	2000	8	166
FL-158	153/4	5	77/8	117/8	17/16	17/16	2	43/8	46905	1800	10	210
FL-180	173/4	51/2	813/16	14	17/16	17/16	23/8	5	66375	1600	12	276
FL-220	22	61/4	97/8	173/4	17/16	17/16	31/8	51/2	97350	1250	14	417
FL-250	247/8	71/16	11	207/8	17/16	17/16	31/2	61/4	141600	1120	18	551

Catalog

Fundamental Dimensions

Bore

Max Torque (In-Lb)

Max Revolution rpm

Number of Bolts n

Wt
Lbs

Pilot Bore

Max Bore

FLS-44

43/8

19/16

5/8

3/8

1/2

13/16

974

6000

6.0

FLS-50

13/4

23/16

33/8

23/32

9/16

1/2

13/8

1505

6000

8.3

FLS-55

51/2

213/16

23/32

9/16

1/2

15/8

2655

6000

11.4

FLS-63

63/8

23/16

31/8

49/16

23/32

9/16

17/8

3983

6000

15.4

FLS-71

71/8

21/2

31/2

51/4

23/32

9/16

23/16

5576

5700

20.1

FLS-79

77/8

213/16

53/4

7/8

3/4

11/16

23/8

7523

5200

31.5

FLS-88

87/8

31/8

43/8

611/16

7/8

3/4

11/16

23/4

12390

4700

39.8

FLS-100

31/2

71/8

11/8

3/4

14160

4200

59.4

FLS-110

51/2

77/8

11/8

13/16

35/16

22150

3750

78.4

FLS-124

123/8

43/8

61/4

93/8

11/8

11/4

315/16

35400

3350

103

FLS-140

71/16

101/4

17/16

11/4

45/16

44250

3000

160

FLS-158

153/4

77/8

117/8

17/16

415/16

66375

2650

198

FLS-180

173/4

51/2

813/16

17/16

23/8

51/2

96750

2360

262

FLS-220

61/4

97/8

173/4

17/16

31/8

515/16

123900

1900

408

FLS-250

247/8

71/16

207/8

17/16

31/2

69/16

177000

1670

539

DIN

fl fls type couplings181-3

Catalog	fundamental dimensions						Bore		Bolts		Max Torque (Nm)	Max Revolution n(rpm)	Moment of inertia (kg.㎠)	G (kg)
Catalog	A	C	B	a	L	F	Pilot	Max	Sizes	Qty	Max Torque (Nm)	Max Revolution n(rpm)	Moment of inertia (kg.㎠)	G (kg)
FL-100	100	42.5	67	10	35.5	16	-	25	M10	4	63	4000	25	2.11
FL-112	112	50	75	10	40	16	-	28	M10	4	90	4000	40	2.75
FL-125	125	56	85	14	45	18	-	32	M14	4	130	4000	70	3.85
FL-140	140	71	100	14	50	18	-	38	M14	6	220	4000	120	5.35
FL-160	160	80	115	14	56	18	-	45	M14	8	360	4000	200	7.15
FL-180	180	90	132	14	63	18	-	50	M14	8	500	3800	330	9.42
FL-200	200	100	145	20	71	22.4	18	56	M20	8	710	3550	650	14.70
FL-224	224	112	170	20	80	22.4	18	63	M20	8	1000	3150	1000	18.90
FL-250	250	125	180	25	90	28	20	71	M20	8	1400	2800	1900	27.40
FL-280	280	140	200	28	100	28	30	80	M24	8	2000	2500	3100	36.40
FL-315	315	160	236	28	112	28	32	90	M24	10	2800	2240	5100	49.00
FL-355	355	180	260	35.5	125	35.5	32	100	M30	8	4000	2000	10000	75.30
FL-400	400	200	300	35.5	125	35.5	50	110	M30	10	5300	1800	16000	95.20
FL-450	450	224	355	35.5	140	35.5	60	125	M30	12	7500	1600	27000	125.00
FL-560	560	250	450	35.5	160	35.5	80	140	M30	14	11000	1250	61000	189.00
FL-630	630	280	530	35.5,	180	35.5	90	160	M30	18	16000	1120	100000	250.00

Catalog	fundamental dimensions						Bore		Bolts		Max Torque (Nm)	Max Revolution n(rpm)	Moment of inertia (kg.㎠)	G (kg)
	A	C	B	a	L	F	Pilot	Max	Sizes	Qty
FLS-112 FLS-125 FLS-140 FLS-160 FLS-180	112 125 140 160 180	50 56 71 80 90	75 85 100 115 132	10 14 14 14 14	40 45 50 56 63	16 18 18 18 18	13 13 13 14 14	30 35 42 48 55	M10 M14 M14 M14 M14	4 4 6 8 8	110 170 300 450 630	6000 6000 6000 6000 5700	43 75 120 210 350	2.90 4.03 5.55 7.49 9.73
FLS-200 FLS-224 FLS-250 FLS-280 FLS-315	200 224 250 280 315	100 112 125 140 160	145 170 180 200 236	20 20 25 28 28	71 80 90 100 112	22.4 22.4 28 28 28	18 18 20 30 32	60 70 75 85 100	M20 M20 M20 M24 M24	8 8 8 8 10	850 1400 1600 2500 4000	5200 4700 4200 3750 3350	690 1100 2000 3300 5400	15.30 19.30 28.80 38.00 50.00
FLS-355 FLS-400 FLS-450 FLS-560 FLS-630	355 400 450 560 630	180 200 224 250 280	260 300 355 450 530	36 36 36 36 36	125 125 140 160 180	35.5 35.5 35.5 35.5 35.5	32 50 60 80 90	110 125 140 150 170	M30 M30 M30 M30 M30	8 10 12 14 18	5000 7500 11000 14000 20000	3000 2650 2360 1900 1670	11000 17000 28000 65000 110000	77.50 96.60 127.00 198.00 261.00