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QGC type involute spline coupling spherical roller coupling(Q/YJ16029X-2018)

The QGC type involute spline spherical roller coupling (compliant with Q/YJ16029X-2018 standard) combines spherical rollers with involute splines and is widely used in cranes, metallurgical, mining, and port equipment for connecting drums and reducers. This coupling exhibits excellent load-bearing capacity, with a nominal torque range of 4 kN·m to 900 kN·m and a permissible radial force of 16.5 kN to 520 kN. Compared to traditional gear couplings, its load-bearing capacity is increased by approximately 30%, easily handling frequent start-stop and impact conditions. Thanks to the spherical contact between the rollers and the bores, it possesses an angular displacement compensation capability of up to 1.5°, effectively compensating for installation errors and frame deformation, acting as a self-aligning element, thereby significantly reducing the additional bending moment on the reducer output shaft and minimizing shaft fatigue risks. In addition, the product has a compact structure, smooth transmission, low noise, and is equipped with an anti-detachment structure, sealing system and wear indicator. While ensuring the safety of heavy-duty transmission, it greatly facilitates condition monitoring and disassembly and maintenance of parts, making it an ideal choice for heavy equipment to achieve compact layout and efficient operation.

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Product Parameters

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TECHNICAL PARAMETERS

Basic parameters and main dimensions of QGC involute splined spherical roller coupling

Type	Nominal torque Tn/kN·m	Permissible radial force/KN	Internal spline	D	D₁	D₂	D₃	n×d₁	d₂	d₃	S	L	l₀	l₁	l₂	l₃	l₄	l₅	l₆	r	c	Wear scale ml	Moment of inertia I/kg·m²	Mass m/kg

QGC1	5	16.5	INT16Zx2.5	250	220	160	—	10×Φ14	35	45	220	80	0	42	12	24	22	30	18	2	1.6	4	0.06	13.2
			INT17Zx2.5						38	48														12.2
QGC2	7.1	18.5	INT17Zx2.5	280	250	180	—	10×Φ14	38	48	250	80	0	42	12	24	22	30	18	2	1.6	4	0.12	19.8
			INT15Zx2m						40	50														18.8
QGC3	9	20	INT16Zx2m	320	280	200	—	10×Φ18	40	50	280	84	0	48	15	25	22	30	22	2.5	1.6	4	0.2	22.1
			INT18Z×						50	60											2			21.8
QGC4	14	25	INT18Zx2m	340	300	220	—	10×Φ18	50	60	300	92	0	45	15	25	22	30	30	2.5	2	4	0.27	28.9
			INT22Zx3m						60	70								35	25					28.8
QGC5	18	35	INT22Zx3m	360	320	240	—	10×Φ18	60	70	320	92	0	45	15	25	22	35	25	2.5	2	6	0.36	35
			INT17Zx3m						70	85		97						40			2.5			34
QGC6	22.4	38.5	INT18Zx5m	380	340	260	—	10×Φ18	80	0	340	97	0	45	15	25	22	40	25	2.5	2.5	6	0.48	40
			INT22Zx3m						80	100		127					37	50						41
QGC7	28	42	INT18Zx5m	400	360	280	150	10×Φ18	80	100	360	127	10	67	15	33	37	50	25	3	2.5	6	0.6	51
			INT22Zx5m						100	120		137	0					55	30					47
QGC8	35.5	49	INT22Zx5m	420	380	310	168	10×Φ18	100	120	380	137	20	77	15	33	37	55	30	3	2.5	6	0.86	59
			INT26Zx5m						120	140		157	0					70	35		3			57
QGC9	50	70	INT26Zx5m	450	400	340	215	10×Φ22	120	140	400	157	0	87	20	28	37	70	35	3	3	6	1.32	78
			INT30Zx5m						140	160		167						75	40					75
QGC10	100	120	INT34Zx5m	550	500	420	260	10×Φ22	140	160	500	167	20	95	20	38	37	75	40	3	3	8	3.44	129
			INT38Zx5m						160	180		182	0					85	45					126
QGC11	160	140	INT34Zx5m	580	530	450	285	14×Φ22	160	180	530	182	0	95	20	38	37	85	45	3	3	8	4.23	151
			INT38Zx5m						180	00		192						95			4			146
QGC12	224	170	INT26Zx8m	650	600	530	315	14×Φ22	180	00	580	192	15	120	25	33	37	95	45	3	4	8	7.52	210
			INT26Zx8m						190	222		207	0					105						205
QGC13	355	300	INT26Zx8m	680	630	560	395	26×Φ22	190	222	600	207	0	120	25	35	37	105	45	4	4	8	9.81	236
			INT30Zx8m						220	254		222						120			5			229
QGC14	500	340	INT30Zx8m	710	660	600	395	26×Φ26	220	254	640	222	15	140	35	43	37	120	45	4	5	8	14.76	301
			INT34Zx8m						260	206		237	0					135						208
QGC15	630	380	INT34Zx8m	780	730	670	445	26×Φ26	260	286	700	237	25	160	35	43	37	135	45	4	5	8	24.14	308
			INT38Zx8m						280	318		262	0					150	55					395
QGC16	710	450	INT38Zx8m	850	800	730	445	26×Φ26	280	318	760	262	25	180	35	43	37	150	55	4	5	8	34.4	483
			INT44Zx8m						320	986		287	0					170	60		6			451
QGC17	900	520	INT44Zx8m	950	900	840	585	26×Φ26	320	366	860	287	25	200	45	55	37	170	60	4	6	8	74.63	797
			INT50Zx8m						360	420		352	0				52	220			8			793

Note: Moment ofinertia and mass are approximations calculated with smaller shaft hole diameters.

Zhongye Heavy Industry Technology (Zhenjiang) Co., Ltd.

Zhongye Heavy Industry Technology (Zhenjiang) Co., Ltd. is located in a well-known ancient city, Zhenjiang. We are an enterprise integrating R & D, manufacturing, and sales. As a famous China QGC type involute spline coupling spherical roller coupling(Q/YJ16029X-2018) Manufacturers and QGC type involute spline coupling spherical roller coupling(Q/YJ16029X-2018) Suppliers, our products are widely used in metallurgical equipment, mining equipment, water equipment, lifting equipment, paper equipment, port equipment and other industries.
Our main products are toothed coupling, elastic sleeve column pin coupling, elastic column pin coupling, gear coupling with elastic pin, a universal coupling, tire coupling, jaw coupling, star coupling, diaphragm coupling, drum coupling and grid coupling, the Oldham coupling, flange coupling, clip shell coupling, GL type roller chain coupling and a safety coupling, and so on. Our company also undertakes a variety of non-standard coupling designs and manufacturing.
New workshop covers an area of about 16463.52m². heavy workshop 5,500 M2, Precision workshop 4,600m², office building and the gymnasium 2000 M2, Dinning hall 500m², Warehouse 1000m², Roads, greening, parking areas 3563 M2.

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