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

The QGC drum coupling is a spherical roller heavy-duty transmission component. Its core design consists of spherical rollers and a cycloidal spline. It is suitable for connecting drums and reducers in cranes, metallurgy, and other applications, and features strong load-bearing capacity, angular displacement compensation, low additional bending moment, and convenient maintenance. Here are its detailed performance characteristics:

Core performance characteristics

Excellent heavy-duty transmission and radial load-bearing: Spherical rollers are evenly distributed to transfer torque, with nominal torque ranging from 4kN·m to 900kN·m, and the allowable radial force reaching 16.5kN to 520kN. It is compatible with M3-M8 multiple working grades and can withstand frequent start-stop and impact conditions, with a 30% increase in bearing capacity compared to traditional tooth couplings.

Moderate angular displacement compensation capability: The spherical contact between the spherical rollers and the holes can compensate for angular displacements up to 1.5°, suitable for installation errors and frame deformations, reducing the requirements for shaft alignment accuracy and avoiding concentrated additional stress.

Low additional bending moment and high stability: The spherical contact also functions as a self-aligning bearing, significantly reducing the additional bending moment on the output shaft of the reducer and reducing the fatigue risk of the shaft system; the cycloidal spline transmission is smooth and has low operating noise, and is equipped with a wear indicator device for easy condition monitoring.

Reliable safety and protection: The spherical roller anti-detachment structure and sealing system can prevent the rollers from detaching, avoiding leakage of lubricating oil and the intrusion of impurities, ensuring the transmission safety in heavy-duty conditions.

Easy installation and maintenance: The combined design of the cycloidal spline and spherical rollers allows for a certain installation deviation, shortening the commissioning cycle; the modular structure facilitates disassembly and replacement of easily damaged parts such as rollers, with low maintenance costs and suitability for limited space drum arrangements.

Compact and efficient structure: The optimized axial and radial dimensions enable high torque and radial load-bearing in a limited space, meeting the requirements for compact layout of heavy equipment.

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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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