Introduction

[BR disc coupling]

Low bending moment high speed diaphragm coupling

The low-bend-type diaphragm coupling is one of the optimized forms of the coupling that can adapt to high-speed rotation in the diaphragm coupling. The main feature is to reduce the additional...

Disc coupling

-The center of gravity is close to the support end, the torsional stiffness is low, and the torsional vibration characteristics of the unit can be adjusted, which is suitable for high-speed units;

- Easy to install, easy to disassemble, suitable for large fans, pump sets, high speed units;

-Other special structures can be designed according to customer requirements;

-Coupling material can be selected according to customer requirements;

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

- 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;

BR型低弯矩膜片联轴器

Coupling model	Power/speed (Kw/rpm)	Nominal torque (KNm)	Peak torque (KNm)	Maximum required speed (r/min)	A (mm)	B (mm)	C(mm)max	E(mm)	F (mm)	L(mm)
BR115	0.072	0.68	2.4	32000	115	62	40	160	45	250
BR135	0.16	1.52	3.3	28000	135	82	55	170	60	290
BR152	0.22	2.1	6.1	25000	152	98	65	190	70	330
BR175	0.39	3.7	10.8	23000	175	105	75	210	80	370
BR196	0.49	4.6	12.4	21000	196	115	80	230	85	400
BR210	0.54	5.15	14.2	20000	210	130	90	230	95	420
BR231	0.86	8.21	24.1	18000	231	150	105	250	110	470
BR247	1.28	12.22	32	17000	247	167	115	250	120	490
BR272	2.16	20.62	45	16000	272	182	125	260	130	520
BR300	2.9	27.69	52.9	14000	300	205	140	270	145	560
BR302	3.46	33	78	14000	302	205	140	270	145	560
BR333	4.13	39.44	101	12000	333	217	150	290	160	610
BR363	6.6	63	140	10000	363	247	165	310	175	660
BR396	8.5	81.11	197	9500	396	263	175	320	180	680
BR425	11	105	217	9000	425	268	190	390	195	780
BR457	14	133.7	320	8500	457	300	205	400	210	820
BR493	17	162.3	355	8000	493	336	220	410	220	850
BR525	21	200.5	390	7500	525	344	240	450	240	930
BR570	26	248.3	570	7000	570	387	260	460	260	980

Coupling model	Tightening torque (Nm)	Total mass (Kg)	Torsional stiffness K_T(Nm/radxE+06)	Moment of interia(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 interia(Kgm^2)	mass(Kg)	Torsional stiffness ΔK_T(Nm/radxE+06)	Moment of interia(Kgm^2)	Maximum θ_max(deg)	Augular stiffness (Nm/radxE+03)	Maximum(mm)	Axial force（N）
BR115	45	6.2	0.15	0.009	4.7	0.00389	0.00612	0.375	110.3	2	902
BR135	45	11.6	0.25	0.021	6.0	0.099	0.013	0.375	119.5	2.3	1056
BR152	45	14.3	0.32	0.034	6.9	0.158	0.021	0.375	155.7	2.4	1368
BR175	85	19.5	0.42	0.076	10.4	0.289	0.035	0.375	168.2	2.6	2100
BR196	160	27.2	0.75	0.132	11.8	0.455	0.047	0.375	205.3	2.8	2306
BR210	160	34.5	1.12	0.181	13.5	0.702	0.085	0.375	213.6	3.0	3256
BR231	160	47.5	1.94	0.28	15.1	0.836	0.129	0.375	401.9	3.1	3654
BR247	160	58.3	2.35	0.41	22.6	1.536	0.172	0.375	447.2	3.3	3946
BR272	280	68.5	2.95	0.65	26.5	2.03	0.216	0.375	535.2	3.5	4653
BR300	280	82.3	4.86	1.02	39.5	2.76	0.444	0.375	592.3	3.6	5621
BR302	280	83.2	5.42	1.13	39.5	2.76	0.444	0.25	1989	2.8	6542
BR333	340	127.2	8.54	1.73	46.3	5.422	0.522	0.25	2653	3.0	9326
BR363	540	159.5	9.93	2.68	51.2	7.032	0.755	0.25	3456	3.3	12681
BR396	540	202.3	11.86	3.95	56.1	8.865	0.923	0.25	7864	3.4	13653
BR425	800	273.5	14.76	5.68	71.5	14.65	1.101	0.25	6859	3.6	15782
BR457	800	316.4	18.65	6.96	87.3	16.83	1.522	0.25	6971	3.8	16524
BR493	800	388.5	22.47	11.53	94.6	21.32	2.11	0.25	7865	4.0	18936
BR525	1200	472.5	25.87	15.72	105.3	25.66	2.56	0.25	8654	4.2	19856
BR570	1200	583.5	34.61	23.65	136	40.37	4.03	0.25	8475	4.6	20541