RLQF Diaphragm Coupling

Flange Type, Quick Installation

Suitable for drum pressure fans, turbine compressors, and other high speed applications, with a maximum speed of up to 35000rpm.

Model	D	DA	D1/D2	D3	d1/d2max)	d4	L1/L2	E Standard/Minimum (min)	L	Maximum Allowable Speed	Nominal Torque	Maximum Instantaneous Torque
Model	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	n max(r/min)	T(N.m)	Tmax(N.m)
RLQF103-6	124	103	103	62	60	56	65	460/120	260	38000	980	2500
RLQF125-6	146	125	127	76	70	58	75	460/120	272	35000	1500	5300
RLQF145-6	168	145	150	85	85	75	90	460/120	290	30000	2000	6500
RLQF158-6	188	158	180	94	100	85	105	460/130	340	27500	3800	15000
RLQF175-6	210	175	200	108	120	99	125	460/160	400	24500	6500	25000
RLQF205-6	235	205	210	127	135	117	140	460/160	430	23500	9800	27500
RLQF235-6	270	235	232	151	155	140	165	460/190	525	21000	13500	43500
RLQF255-6	298	255	250	164	170	150	180	460/195	545	18500	19500	65000
RLQF280-6	320	280	277	182	185	167	195	460/200	590	16000	26500	85350
RLQF300-6	350	300	305	202	205	182	215	460/210	620	14850	32000	91500
RLQF320-6	382	320	336	219	225	200	235	460/250	710	13500	43200	128000
RLQF370-6	425	370	365	238	245	220	255	500/270	780	12500	70000	185000
RLQF400-6	455	402	405	248	270	232	290	500/305	885	11000	98000	282000
RLQF435-6	490	435	440	292	295	270	315	500/305	925	10000	125000	315000
RLQF465-6	540	465	470	327	325	300	345	550/330	1000	8500	145000	391500
RLQF540-6	600	540	532	375	355	344	375	550/330	1070	7350	200000	525000
Model	d3	Mass Point G	Angular Deviation	Maximum axial deviation	S	Intermediate Mass m	Intermediate moment of inertia	Intermediate torsional stiffness	Weight M	Torsional Stiffness	Rotational Inertia	Tightening torque
Model	(mm)	(mm)	(±△º)	(Max±△mm)	(mm)	10-3kg/mm	Js10-6(Kg.m²/mm)	Ct-106(Nm.mm/rad)	(Kg)	Ct-106(N.m/rad)	Js10-6(Kg.m²/mm)	F' (N.m)
RLQF103-6		52.41	0.35°	0.9*2	9	3.8	3	25	7.6	47	5	8
RLQF125-6		61.485		1*2	12	5.3	5.04	51.3	12.8	151	13	8
RLQF145-6		70.6		1*2	14	8.82	14	143	19.5	150	31	8
RLQF158-6		80.02		1.25*2	16	10	20	203	28	217	57	8
RLQF175-6		96.6		1.25*2	17	11.5	31	314	42.5	472	129	8
RLQF205-6		103.5		1.75*2	17	15	56	571	56.5	478	203	15
RLQF235-6		120.2		1.75*2	21	20	105	1066	89	894	483	15
RLQF255-6		132		1.8*2	21	23	146	1489	112.5	1502	671	45
RLQF280-6		142.7		1.8*2	22	30.1	232	2361	138	1517	115	45
RLQF300-6		149.1		2*2	22	33	301	3089	173.2	1562	160.6	45
RLQF320-6		164.3		2*2	27	44	490	4989	247	2622	258	45
RLQF370-6		185.5		2.25*2	32	57.5	771	7860	337	4242	466.7	45
RLQF400-6		207.2		3*2	35	75.5	1129	11509	405	9109	7329	45
RLQF435-6		212.5		3.25*2	37	80	1504	16140	515.5	15450	10010	45
RLQF485-6		245.2		3.75*2	40	105	2570	26183	690	20380	18490	100
RLQF540-6		262.4		4*2	42	133	4290	43682	903	23350	29500	100
Model	D	DA	D1/D2	D3	d1/d2max)	d4	L1/L2	E Standard/Minimum (min)	L	Maximum Allowable Speed	Nominal Torque	Maximum Instantaneous Torque
Model	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	n max(r/min)	T(N.m)	Tmax(N.m)
RLQF158-8	188	158	147	94	100	82	105	460/130	340	12200	7500	20000
RLQF175-8	210	175	175	108	115	97	120	460/160	400	10000	9800	29200
RLQF205-8	235	207	197	135	130	123	135	460/250	520	9500	11250	39375
RLQF235-8	280	240	235	152	155	138	165	460/270	600	8000	27500	82500
RLQF255-8	300	258	260	164	175	149	185	460/305	675	7500	31500	94500
RLQF300-8	345	302	292	198	195	184	205	460/305	715	6500	42500	127500
RLQF345-8	402	346	344	234	230	217	240	500/250	730	5500	62000	186000
RLQF370-8	425	372	368	248	2445	228	255	500/270	780	5200	98000	264500
RLQF400-8	453	402	396	257	270	232	290	500/305	885	4750	135000	364500
RLQF435-8	490	435	435	293	290	270	310	500/305	925	4400	170000	459000
RLQF465-8	540	465	474	327	315	300	335	550/330	1000	3900	215000	580500
RLQF540-8	600	540	526	375	350	344	370	550/330	1070	3500	278000	750600
RLQF610-8	665	610	587	420	390	385	410	600/385	1205	3200	400000	105000
Model	d3	Mass Point G	Angular Deviation	Maximum axial deviation	S	Intermediate Mass m	Intermediate moment of inertia	Intermediate torsional stiffness	Weight M	Torsional Stiffness	Rotational Inertia	Tightening torque
Model	(mm)	(mm)	(±△º)	(Max±△mm)	(mm)	10-3kg/mm	Js10-6(Kg.m²/mm)	Ct-106(Nm.mm/rad)	(Kg)	Ct-106(N.m/rad)	Js10-6(Kg.m²/mm)	F' (N.m)
RLQF158-8		87.8	0.25°	0.6*2	16	12	20	203	29	351	110	8
RLQF175-8		94.5		0.9*2	17	13	31	314	42.5	620	220	10
RLQF205-8		103.8		1.1*2	17	19.1	80	811	58	904	438	12.5
RLQF235-8		121.5		1.1*2	21	25.1	132	1344	98	1785	865	28
RLQF255-8		133.4		1.4*2	21	29	178	1810	125.5	3069	950	31.5
RLQF300-8		151.5		1.7*2	22	33	301	3069	174	3909	1597	45
RLQF345-8		174.4		2*2	24	42.5	602	6133	275	5365	3484	63
RLQF370-8		187.4		2.1*2	27	59	833	8485	332	9043	4677	100
RLQF400-8		207.2		2.2*2	32	75.5	1129	11509	435.2	12300	13500	140
RLQF435-8		212.5		2.4*2	35	80	1504	16140	554	15450	18780	180
RLQF485-8		245.2		2.6*2	37	105	2570	26183	742	20380	30280	224
RLQF540-8		262.4		2.75*2	40	133	4290	43682	956	23350	47500	280
RLQF610-8		302.1		3.4*2	42	169	6870	70033	1325	37320	81300	400
Model	D	DA	D1/D2	D3	d1/d2max)	d4	L1/L2	E Standard/Minimum (min)	L	Maximum Allowable Speed	Nominal Torque	Maximum Instantaneous Torque
Model	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	n max(r/min)	T(N.m)	Tmax(N.m)
RLQF205-10	235	207	190	135	130	119	135	460/250	520	18500	20000	54000
RLQF235-10	280	240	225	152	155	132	165	460/270	600	15500	35500	113500
RLQF255-10	300	258	255	164	175	140	185	460/305	675	14500	50000	145000
RLQF300-10	345	302	286	198	195	176	205	460/305	715	12500	63000	165000
RLQF345-10	402	346	345	234	230	217	240	500/250	730	11000	78500	245000
RLQF370-10	425	372	368	248	245	228	255	500/270	780	10000	124500	348500
RLQF400-10	453	402	400	257	270	232	290	500/305	885	9500	158500	518000
RLQF435-10	490	435	435	293	290	270	310	500/305	925	8700	178000	575000
RLQF485-10	550	485	480	327	315	300	335	550/330	1000	7500	245000	860000
RLQF540-10	600	540	530	374	350	344	370	550/330	1070	6850	350000	965000
RLQF610-10	665	610	590	410	390	386	410	600/385	1205	6000	555000	1450000
RLQF720-10	800	720	725	495	500	435	650
Model	d3	Mass Point G	Angular Deviation	Maximum axial deviation	S	Intermediate Mass m	Intermediate moment of inertia	Intermediate torsional stiffness	Weight M	Torsional Stiffness	Rotational Inertia	Tightening torque
Model	(mm)	(mm)	(±△º)	(Max±△mm)	(mm)	10-3kg/mm	Js10-6(Kg.m²/mm)	Ct-106(Nm.mm/rad)	(Kg)	Ct-106(N.m/rad)	Js10-6(Kg.m²/mm)	F' (N.m)
RLQF205-10		116.4	0.2°	0.8*2	21	25	100	811	58	1450	380	8
RLQF235-10		121.5		0.85*2	23	35	175	1344	95	2660	870	15
RLQF255-10		121.5		0.95*2	23	45	261	1344	128	3930	1440	15
RLQF300-10		133.4		1.15*2	26	48	445	1810	175.5	5405	2540	45
RLQF345-10		151.5		1.4*2	31	51	602	3069	278.5	7921	5990	45
RLQF370-10		174.4		1.5*2	33	59	833	6133	336	11450	8050	45
RLQF400-10		187.4		1.505*2	35	75	1077	8485	445	15540	12390	45
RLQF435-10		207.2		2*2	35	78.5	1510	11509	559	19950	18850	45
RLQF485-10		212.5		2.15*2	38	104.5	2570	16140	748.5	29385	30500	45
RLQF540-10		245.2		2.3*2	40	133	4285	26183	960	39425	47950	100
RLQF610-10		262.4		2.8*2	46	170	6672	43682	1328	59450	81560	100
RLQF720-10

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Steel Lamina Coupling

RLQF Diaphragm Coupling

RLQF Diaphragm Coupling