Introduction

[BL disc coupling]

Double disc coupling, disc coupling

The double disc basic diaphragm coupling is very common in use. It has been used in China since the 1980s. It has the characteristics of convenient maintenance, simple processing and long servi...

Disc coupling

双膜片联轴器

双膜片联轴器电厂应用

膜片联轴器基本型尺寸图

Coupling model	Number of holes	Form	Nominal torque (KNm)	Peak torque (KNm)	Maximum required speed (r/min)	A (mm)	C max (mm)	F (mm)	E (mm)	G (mm)	L(mm)
BL115	6	MP I	0.68	2.4	15000	115	40	55	110	8	220
BL135	6	MP I	1.52	3.3	12000	135	55	70	110	10	250
BL152	6	MP I	2.1	6.1	11000	152	70	80	120	12	280
BL175	6	MP I	3.7	10.8	10000	175	85	90	130	13	310
BL196	6	MP I	4.6	12.4	9000	196	90	100	160	14	360
BL210	6	MP I	5.15	14.2	7500	210	100	110	160	14	380
BL231	6	MP I	8.21	24.1	6700	231	115	125	160	14	410
BL247	6	MP I	12.22	32	6200	247	125	140	160	15	440
BL272	6	MP I	20.62	45	5500	272	130	150	175	16	475
BL300	6	MP I	27.69	52.9	5200	300	150	165	195	18	525
BL302	8	MP II	33	78	4700	302	150	165	195	18	525
BL333	8	MP II	39.44	101	4350	333	160	180	220	21	580
BL363	8	MP II	63	140	4200	363	170	200	250	24	650
BL396	8	MP II	81.11	197	3900	396	195	215	270	26	700
BL425	8	MP III	105	217	3600	425	205	230	290	50	750
BL457	8	MP III	133.7	320	3450	457	225	240	310	52	790
BL493	8	MP III	162.3	355	3300	493	245	260	320	54	840
BL525	8	MP III	200.5	390	3200	525	260	275	335	62	885
BL570	8	MP III	248.3	570	3100	570	290	295	355	64	945
BL496	10	MP IV	162.3	355	3300	496	245	260	320	54	840
BL537	10	MP IV	238.75	548	3200	537	265	280	350	62	910
BL580	10	MP IV	334.25	770	3100	580	295	305	370	66	980
BL630	10	MP IV	401.1	920	3000	630	320	330	400	68	1060
BL720	10	MP IV	980.2	1666	3000	720	360	445	440	68	1330
BL800	10	MP IV	1553	2884	3000	800	400	520	460	68	1500
BL900	10	MP IV	2205	3400	3000	900	460	600	460	68	1660
BL990	10	MP IV	3205	4670	3000	990	530	720	480	68	1920

The parameters are calculated in detail in the drawings provided to the customer, and the general values in the table are given as a reference;l Applicable occasions are more extensive;

l The maximum allowable speed of the coupling is affected by the dynamic balance, field unit, and critical speed, which can exceed the values in the table.

l The radial misalignment value is a function of the angular misalignment and the length of the intermediate section, which can be approximated by the tangent function;

l For units with thermal expansion, the cold pre-tension should be considered during installation to make the flexible components work in a small deformation interval and improve the service life;

l Special structure can be designed according to customer requirements;

l Coupling material can be selected according to customer requirements;

l The dimensions in the figure can be made according to customer requirements; other technical parameters can be consulted by Bunker Technology Department;

Coupling model	Tightening torque(Nm)	Total mass(Kg)	Torsional stiffness K_T(Nm/radxE+06)	Moment of inertia(Kgm^2)	Middle section per meter long			Corner misalignment		Axial misalignment
Coupling model	Tightening torque(Nm)	Total mass(Kg)	Torsional stiffness K_T(Nm/radxE+06)	Moment of inertia(Kgm^2)	Mass(Kg)	Torsional stiffness ΔK_T(Nm /radxE+06)	Moment of inertia(Kgm^2)	maximum θ_max (deg)	Angular stiffness (Nm/radxE+03)	maximum (mm)	Axial force（N）
BL115	45	4.5	0.412	0.0072	4.7	0.00389	0.00612	0.375	105.4	2	902
BL135	45	6.7	0.72	0.014	6.0	0.099	0.013	0.375	113.6	2.3	1056
BL152	45	10.3	1.163	0.028	6.9	0.158	0.021	0.375	148.3	2.4	1368
BL175	85	15.6	1.695	0.058	10.4	0.289	0.035	0.375	160.3	2.6	2100
BL196	160	21.3	2.563	0.08	11.8	0.455	0.047	0.375	198.6	2.8	2306
BL210	160	31.2	2.988	0.19	13.5	0.702	0.085	0.375	203.5	3.0	3256
BL231	160	32.2	3.596	0.24	15.1	0.836	0.129	0.375	382.8	3.1	3654
BL247	160	42.8	6.420	0.32	22.6	1.536	0.172	0.375	425.8	3.3	3946
BL272	280	55.6	6.852	0.5	26.5	2.03	0.216	0.375	510.4	3.5	4653
BL300	280	68.2	7.963	0.72	39.5	2.76	0.444	0.375	564.3	3.6	5621
BL302	280	68.2	12.856	0.72	39.5	2.76	0.444	0.25	1989	2.8	6542
BL333	340	104.3	17.63	1.51	46.3	5.422	0.522	0.25	2653	3.0	9326
BL363	540	135.2	23.956	2.2	51.2	7.032	0.755	0.25	3456	3.3	12681
BL396	540	175.2	32.85	3.3	56.1	8.865	0.923	0.25	7864	3.4	13653
BL425	800	220.1	43.963	5.2	71.5	14.65	1.101	0.25	6859	3.6	15782
BL457	800	278.2	55.63	7.9	87.3	16.83	1.522	0.25	6971	3.8	16524
BL493	800	320.2	62.356	9.6	94.6	21.32	2.11	0.25	7865	4.0	18936
BL525	1200	418.3	75.362	16.2	105.3	25.66	2.56	0.25	8654	4.2	19856
BL570	1200	573.2	102.36	24.3	136	40.37	4.03	0.25	8475	4.6	20541
BL496	800	330.2	74.652	10.1	94.6	21.32	2.11	0.165	36587	3.8	16985
BL537	1200	422.3	100.54	17.1	105.3	25.66	2.56	0.165	37698	4.0	18635
BL580	1200	582.2	133.45	26.5	136	40.37	4.03	0.165	45632	4.6	19886
BL630	1800	640.2	150.78	32.6	147	50.8	5.07	0.165	48265	5.2	23687

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[BL disc coupling]