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Shenyang Shenke Power Machinery Co,. Ltd.

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G-type diaphragm coupling

In addition to the key advantages of R-type couplings, the G-type coupling’s half-coupling features a larger shaft diameter capacity and can be manufactured with either straight bores or tapered bores (for hydraulic assembly and disassembly), or it can be conveniently connected to flanged shaft discs. The G-type is particularly well-suited for large electric motors, generators, or steam turbine units. Among all types of couplings, the G-type coupling is the easiest to assemble and disassemble.

Detailed introduction

In addition to the key advantages of R-type couplings, the G-type coupling’s half-coupling features a larger shaft-diameter capacity and can be manufactured with either straight bores or tapered bores (for hydraulic assembly and disassembly), or it can be conveniently connected to flanged shaft hubs. The G-type is particularly well-suited for large electric motors, generators, or steam turbine units. Among all types of couplings, the G-type coupling is the easiest to assemble and disassemble.

Its structural configuration is shown in Figure 2.4, and the technical parameters and main dimensions are listed in Table 2-4 and Table 2-5.

Figure 2.4G-type diaphragm coupling

Table 2-4G: Main Dimensions of Diaphragm Couplings

Model			A ₀	A	bmax	L	Emin
6090			125	95	65	65	160
6120			155	122	85	85	180
6150			188	150	100	100	200
6170			212	170	115	115	230
6190			233	190	130	130	260
6210			260	210	145	140	265
6240	8240		295	240	165	160	280
6260	8260		310	265	180	180	310
6280	8280		334	280	195	190	310
6310	8310	1310	362	310	215	215	345
	8340	1340	392	340	240	240	390
	8370	1370	430	370	255	255	420
	8400	1400	466	400	280	275	430
	8430	1430	496	430	300	295	480
	8460	1460	531	460	320	315	500
	8490	1490	562	490	345	335	530
		1520	594	516	360	355	580
		1560	638	560	395	380	580
		1600	680	600	420	410	590

Table 2—Technical Parameters of 5G Type Diaphragm Coupling

Model Size	Permissible Torque Coefficient (kW/rpm)	Nominal torque Mr. (KNm)	Peak torque (KNm)	Maximum rotational speed (rpm)	The entire coupling			Intermediate pipe per meter			Allow axial displacement		Allow angular misalignment (Degree)
Model Size	Permissible Torque Coefficient (kW/rpm)	Nominal torque Mr. (KNm)	Peak torque (KNm)	Maximum rotational speed (rpm)	Weight (kg)	Moment of inertia (kg·m²)	Torsional stiffness TS (Nm/rad)	Weight (kg)	Moment of inertia (kg·m²)	Torsional stiffness You (Nm/rad)	Coupling (mm)	Steering force (N)	Allow angular misalignment (Degree)
6090	0.05	0.5	0.62	32000	6	0.01	0.09	3.30	0.003	0.03	1.2	480	0.375
6120	0.11	1.1	1.37	26000	12	0.03	0.16	4.13	0.004	0.04	1.8	790	0.375
6150	0.17	1.7	2.12	20000	22	0.08	0.33	5.50	0.011	0.12	2.1	1000	0.375
6170	0.28	2.8	3.50	18300	32	0.15	0.62	6.14	0.015	0.16	2.9	1500	0.375
6190	0.48	4.8	6.00	17000	45	0.28	1.06	9.85	0.032	0.33	3.1	1800	0.375
6210	0.78	7.8	9.75	15000	56	0.41	1.56	12.70	0.052	0.55	3.5	1900	0.375
6240	1.20	12	15.00	13500	78	0.75	2.85	15.92	0.090	0.92	4.2	2600	0.375
6260	1.50	15	18.75	12500	105	1.35	3.64	18.56	0.180	1.90	4.6	2900	0.375
6280	1.75	17.5	21.87	12000	124	1.80	4.60	22.00	0.290	2.92	5.0	3300	0.375
6310	2.36	23.6	29.50	11000	162	2.80	6.70	29.94	0.300	3.05	5.5	4000	0.375
8240	1.5	15.0	18.75	13500	78	0.76	3.50	15.72	0.090	0.92	2.5	3000	0.250
8260	1.75	17.5	21.87	12500	105	1.35	3.64	18.56	0.180	1.90	2.8	3500	0.250
8280	2.68	26.8	33.50	12000	124	1.82	5.85	22.00	0.290	2.92	3.1	4000	0.250
8310	2.96	29.6	37.00	11000	162	2.83	8.40	29.94	0.300	3.05	3.8	4900	0.250
8340	3.75	37.5	46.87	9800	221	4.65	13.90	38.28	0.460	4.63	4.2	7000	0.250
8370	4.70	47.0	58.75	9100	284	6.65	21.00	47.50	0.690	6.95	4.6	8900	0.250
8400	6.30	63.0	78.75	8400	357	9.70	27.00	55.60	0.950	9.60	5.1	10000	0.250
8430	8.00	80.0	100.00	7800	430	13.25	33.00	63.80	1.350	13.90	5.9	12000	0.250
8460	8.50	85.0	106.25	7400	526	19.00	38.00	75.62	1.750	18.00	6.3	14000	0.250
8490	10.50	105.0	131.25	6900	634	25.70	46.00	80.60	2.100	22.00	6.8	15000	0.250
1310	3.92	39.2	49.85	11000	163	2.85	10.10	29.94	0.300	3.05	2.4	8000	0.165
1340	4.87	48.7	61.90	9800	222	4.67	17.40	38.28	0.460	4.63	2.8	15000	0.165
1370	6.25	62.5	79.35	9100	289	6.68	27.10	47.50	0.690	6.95	3.2	16500	0.165
1400	8.40	84.0	106.65	8400	359	9.78	35.00	55.60	0.950	9.60	3.6	19000	0.165
1430	10.65	106.5	135.50	7800	435	13.34	42.80	63.80	1.350	13.90	4.0	21000	0.165
1460	11.3	113.0	143.50	7400	528	19.85	48.60	75.60	1.750	18.00	4.3	22000	0.165
1490	14.00	140.0	177.80	6900	637	26.82	59.80	80.60	2.100	22.00	4.7	23000	0.165
1520	16.50	165.0	206.25	6500	814	39.00	90.00	86.00	2.550	26.00	5.0	27000	0.165
1560	18.30	183.0	228.75	6100	940	52.00	102.00	93.50	3.300	34.50	5.7	30000	0.165
1600	26.00	260.0	325.00	5900	1200	78.00	118.00	142.00	5.200	54.71	6.2	35000	0.165

Note:
1. The parameters in the technical data sheet are all based on the dimensions provided in the size chart.
2. Users often request changes to the shaft-to-shaft distance E; the parameters of the deformed coupling can be easily calculated based on the data provided in the table.

T = Torsional stiffness
E = New spindle center distance
3. For other changes, please contact Schenker’s Engineering Department.

Keywords

F-type diaphragm coupling

R-type diaphragm coupling

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