RLQU Diaphragm Coupling

Improved Flange, Quick Installation

The improved RLQF has smaller additional bending moments and better performance. Suitable for drum pressure fans, turbine compressors, and other high speed applications.

Model	D	DA	D1/D2	D3	d1/d2max)	d4	L1/L2	E Standard/(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)
RLQU103-6	124	103	103	62	60	49	65	460/120	260	38000	980	2500
RLQU125-6	146	125	127	76	70	58	75	460/120	272	35000	1500	5300
RLQU145-6	168	145	150	80	85	75	90	460/120	290	30000	2000	6500
RLQU158-6	188	158	180	89	100	85	105	460/130	340	27500	3800	15000
RLQU175-6	210	175	200	100	120	99	125	460/160	400	24500	6500	25000
RLQU205-6	235	205	210	118	135	117	140	460/160	430	23500	9800	27500
RLQU235-6	270	235	232	139	155	140	165	460/190	525	21000	11000	43500
RLQU255-6	298	255	250	154	170	150	180	460/195	545	18500	14000	65000
RLQU280-6	320	280	277	169	185	167	195	460/200	590	16000	21500	85350
RLQU300-6	350	300	305	184	205	182	215	460/210	620	14850	26500	91500
RLQU330-6	382	330	336	208	225	200	235	460/250	710	13500	32000	128000
RLQU370-6	425	370	365	234	245	220	255	500/270	780	12500	45000	185000
RLQU400-6	455	402	405	242	270	232	290	500/305	885	11000	78500	282000
RLQU435-6	490	435	440	278	295	270	315	500/305	925	10000	100000	315000
RLQU485-6	545	485	490	305	325	300	345	550/330	1000	8500	150000	470000
RLQU540-6	600	540	532	352	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)
RLQU103-6		52.41	0.35°	0.9	9	3.8	3	25	7.6	47	5	8
RLQU125-6		61.485		1	12	5.3	5.04	51.3	12.8	151	13	8
RLQU145-6		70.6		1	13	8.82	14	143	19.5	150	31	8
RLQU158-6		80.02		1.25	16	10	20	203	28	217	57	8
RLQU175-6		96.6		1.25	17	11.5	31	314	42.5	472	129	8
RLQU205-6		103.5		1.75	21	15	56	571	56.5	478	203	15
RLQU235-6		120.2		1.75	23	20	105	1066	89	894	483	15
RLQU255-6		132		1.8	25	23	146	1489	112.5	1502	671	45
RLQU280-6		142.7		1.8	31	30.1	232	2361	138	1517	115	45
RLQU300-6		149.1		2	33	33	301	3089	173.2	1562	160.6	45
RLQU330-6		164.3		2	35	44	490	4989	247	2622	258	45
RLQU370-6		185.5		2.25	35	57.5	771	7860	337	4242	466.7	45
RLQU400-6		207.2		3	37	75.5	1129	11509	405	9109	7329	45
RLQU435-6		212.5		3	37	80	1504	16140	515.5	15450	10010	45
RLQU485-6		245.2		3.25	40	105	2570	26183	690	20380	18490	100
RLQU540-6		262.4		4	40	133	4290	43682	903	23350	29500	100
Model	D	DA	D1/D2	D3	d1/d2max)	d4	L1/L2	E Standard/(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)
RLQU158-8	188	158	147	94	100	82	105	460/130	340	12200	2000	6500
RLQU175-8	210	175	175	108	115	97	120	460/160	400	10000	3500	10500
RLQU205-8	235	207	197	135	130	123	135	460/250	520	9500	8000	19500
RLQU235-8	280	240	235	152	155	138	165	460/270	600	8000	16000	47800
RLQU255-8	300	258	260	164	175	149	185	460/305	675	7500	25000	63000
RLQU300-8	345	302	292	198	195	184	205	460/305	715	6500	31500	73700
RLQU345-8	402	346	344	234	230	217	240	500/250	730	5500	40000	123000
RLQU370-8	425	372	368	248	2445	228	255	500/270	780	5200	63000	165000
RLQU400-8	453	402	396	257	270	232	290	500/305	885	4750	80000	228000
RLQU435-8	490	435	435	293	290	270	310	500/305	925	4400	100000	254000
RLQU485-8	550	485	474	327	315	300	335	550/330	1000	3900	140000	400000
RLQU540-8	600	540	526	374	350	344	370	550/330	1070	3500	200000	448000
RLQU610-8	665	610	587	420	390	385	410	600/385	1205	3200	250000	669000
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)
RLQU158-8		87.8	0.25°	0.6	17	12	20	203	29	351	110	8
RLQU175-8		94.5		0.9	17	13	31	314	42.5	620	220	10
RLQU205-8		103.8		1.1	21	19.1	80	811	58	904	438	12.5
RLQU235-8		121.5		1.1	23	25.1	132	1344	98	1785	865	28
RLQU255-8		133.4		1.4	25	29	178	1810	125.5	3069	950	31.5
RLQU300-8		151.5		1.7	31	33	301	3069	174	3909	1597	45
RLQU345-8		174.4		2	33	42.5	602	6133	275	5365	3484	63
RLQU370-8		187.4		2.1	35	59	833	8485	332	9043	4677	100
RLQU400-8		207.2		2.2	35	75.5	1129	11509	435.2	12300	13500	140
RLQU435-8		212.5		2.4	37	80	1504	16140	554	15450	18780	180
RLQU485-8		245.2		2.6	40	105	2570	26183	742	20380	30280	224
RLQU540-8		262.4		2.75	40	133	4290	43682	956	23350	47500	280
RLQU610-8		302.1		3.4	46	169	6870	70033	1325	37320	81300	400
Model	D	DA	D1/D2	D3	d1/d2max)	d4	L1/L2	E Standard/(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)
RLQU205-10	235	207	190	135	130	119	135	460/250	520	18500	20000	54000
RLQU235-10	280	240	225	152	155	132	165	460/270	600	15500	35500	113500
RLQU255-10	300	258	255	164	175	140	185	460/305	675	14500	50000	145000
RLQU300-10	345	302	286	198	195	176	205	460/305	715	12500	63000	165000
RLQU345-10	402	346	345	234	230	217	240	500/250	730	11000	78500	245000
RLQU370-10	425	372	368	248	245	228	255	500/270	780	10000	124500	348500
RLQU400-10	453	402	400	257	270	232	290	500/305	885	9500	158500	518000
RLQU435-10	490	435	435	293	290	270	310	500/305	925	8700	178500	575000
RLQU485-10	550	485	480	327	315	300	335	550/330	1000	7500	245000	860000
RLQU540-10	600	540	530	374	350	344	370	550/330	1070	6850	358500	965000
RLQU610-10	665	610	590	410	390	386	410	600/385	1205	6000	555000	1450000
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)
RLQU205-10		116.4	0.2°	0.8	21	25	100	811	58	1450	380	8
RLQU235-10		121.5		0.85	23	35	175	1344	95	2660	870	15
RLQU255-10		121.5		0.95	23	45	261	1344	128	3930	1440	15
RLQU300-10		133.4		1.15	26	48	445	1810	175.5	5405	2540	45
RLQU345-10		151.5		1.4	31	51	602	3069	278.5	7921	5990	45
RLQU370-10		174.4		1.5	33	59	833	6133	336	11450	8050	45
RLQU400-10		187.4		1.505	35	75	1077	8485	445	15540	12390	45
RLQU435-10		207.2		2	35	78.5	1510	11509	559	19950	18850	45
RLQU485-10		212.5		2.15	38	104.5	2570	16140	748.5	29385	30500	45
RLQU540-10		245.2		2.3	40	133	4285	26183	960	39425	47950	100
RLQU610-10		262.4		2.8	46	170	6672	43682	1328	59450	81560	100

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Steel Lamina Coupling

RLQU Diaphragm Coupling

RLQU Diaphragm Coupling