RSK Technology
Your Reliable Partner in Power Transmission

Wholesale RSK-UL type tire coupling high-flexibility maintenance-free low-speed flexible coupling

Home / Products / Flexible Couplings / Tire Couplings / RSK-UL type tire coupling high-flexibility maintenance-free low-speed flexible coupling

RSK-UL type tire coupling high-flexibility maintenance-free low-speed flexible coupling

PREV: RSK-Omega-shaped Tyre Coupling Exceptional Flexibility and Large Compensation Capacity NEXT: No next article

Specification
Describe

Specification

RSK-UL type Tyre Coupling is a high-flexibility, maintenance-free flexible coupling. Its core component is a tyre-shaped elastomer made of rubber or polyurethane, connected to two metal flange halves via bolts. It achieves significant displacement compensation and powerful cushioning and vibration damping through the radial compression and shear deformation of the elastomer. It is suitable for medium- to low-speed transmission applications such as conveyors, fans, and pump sets that require vibration isolation and misalignment compensation.

Model	Nominal Torque /N·m	Instantaneous Maximum Torque Tmax /N·m	Permissible Rotational Speed [n]		Shaft Hole Diameter d(H7)		Shaft Hole Length L		D	B		Moment Of Inertia I	Weight m / kg
			Steel	Iron	Steel	Iron	J、J₁ -shaped	Y-shaped
UL1	10	31.5	5000	3500	11	11	22	25	80	20	42	0.0003	0.7
					12、14	12、14	27	32
					16、18	16	30	42
UL2	25	80		3000	14	14	27	32	100	26	51	0.0008	1.2
					16、18、19	16、18、19	30	42
					20、22	20	38	52
UL3	63	180	4300		18、19	18、19	30	42	120	32	62	0.0022	1.8
					20、22、24	20、22	38	52
					25		44
UL4	100	315	4500		20、22、24	20、22、24	38	52	140	38	69	0.0044	3
					25、28	25	44	62
					30		60
UL5	160	500	4000		24	24	38	52	160	45	80	0.0084	4.6
					25、28	25、28	44	62
					30、32、35	30	60	82
UL6	250	710	3600	2500	28	28	44	62	180	50	90	0.0164	7.1
					30、32、35、38	30、32、35	60	82
					40		84	112
UL7	315	900	3200		32、35、38	32、35、38	60	82	200	56	104	0.029	10.9
					40、42、45、48	40、42	84	112
UL8	400	1250	3000	2000	38	38	60	82	220	63	110	0.0448	13
					40、42、45、48、50	40、42、45	84	112
UL9	630	1800	2800		42、45、48、50、55、56	42、45、48、50、55	84	112	250	71	130	0.0898	20
					60		107
UL10	800	2240	2400	1600	45、48、50、55、56	45、48、50、55、56	84	112	280	80	148	0.1596	30.6
					60、63	60、63	107	142
UL11	1000	2500	2100		50、55、56*	50、55、56*	84	112	320	90	165	0.2792	39
					60、63、65、70、71、75	60、63、65	107	142
UL12	1600	4000	2000		55、56	55、56	84	112	360	100	188	0.5356	59
					60、63、65、70、71、75	60、63、65、70、71、75	107	142
					80、85	80	132	172
UL13	2500	6300	1800		63、65、70、71、75*	63、65、70、71、75*	107	142	400	110	210	0.896	81
					80、85、90、95	80、85、90、95	132	172
UL14	4000	10000	1600	1400	75*	75*	107	142	480	130	254	2.2616	145
					80、85、90、95	80、85、90、95	132	172
					100、110	100、110	167	212
UL15	6300	14000	1200	1120	85、90、95*	90、95	132	172	560	150	300	4.6456	222
					100、110、120、125、	100、110、120、125	167	212
UL16	10000	20000	1000	1000	100、110、120、125	100、110、120、125			630	180	335	8.0924	302
					130、140	130、140	202	252
UL17	16000	31500	900	850			167	212	750	210	405	20.0176	561
							202	252
					160*	160*	242	302
UL18	25000	59000	800	750			202	252	900	250	490	43.053	818
							242	302

Describe

Our waterproof and dustproof tire coupling is designed to cope with harsh working environments and can still operate stably under harsh conditions such as humidity and dust. It uses special processes and materials to effectively prevent water and dust from intruding, ensure that the internal structure is not corroded, and greatly extend the service life.

The coupling relies on the highly elastic tire ring to transmit torque, which can excellently compensate for the axial, radial and angular displacement between the two shafts, and has a strong adaptability to equipment installation errors and shaft displacement during operation. Its excellent buffering and shock absorption performance can significantly reduce the impact and vibration of the equipment during operation, ensure the smooth operation of the equipment, reduce the wear of parts, and thus reduce maintenance costs. At the same time, this feature can also effectively reduce the current peak during the operation of the equipment. Compared with other couplings, the reduction can be up to 50%, which helps to save energy and protect the electrical system.

In terms of structural design, it is simple and compact, does not require lubrication, and avoids pollution and maintenance troubles caused by lubricant leakage. Daily assembly and disassembly and maintenance are easy and convenient. After the main engine axis is aligned once, the main engine does not need to be moved when replacing the elastic element. The operation can be completed quickly, saving a lot of time and manpower.

This coupling is widely used in mining, metallurgy, textile, water pump and other industries, and can work stably in the temperature range of -20℃ to 80℃. Whether in the strong impact environment of mining equipment, the dusty environment of textile workshops, or the long-term humid working scene of water pumps, it can show reliable performance and provide solid guarantee for the efficient operation of equipment.

Company

Jiangsu Rokang Heavy Industry Technology Co., Ltd.

Jiangsu Rokang Heavy Industry Technology Co., Ltd. has fixed assets of more than 80 million yuan, and has a team of professional talents in mechanical design, precision manufacturing, heat treatment, welding, etc.; the company has a one-stop complete set of processing facilities and a series of quality inspection systems such as measurement, physical and chemical, and dynamic testing, and has a comprehensive mechanical processing capability. For many years, the company has been committed to the research and development and manufacturing of ball cage type constant velocity universal couplings, cross shaft type universal couplings, and drum gear couplings. It has carried out close industry-university-research cooperation with military and local scientific research institutes and Power Engineering Department of PLA Naval Academy, and has continuously expanded into the fields of precision, heavy load and high speed. The products have successfully replaced foreign famous brand products with excellent performance, and the process technology has reached the international advanced level. It has been widely used in lifting and transportation, metallurgical machinery, metal rolling, engineering machinery, mining machinery, petrochemical, textile machinery, military ships, armored vehicles, railway locomotives, special vehicles and other fields. The product quality and service have been recognized and praised by the majority of users, and are exported to Europe, America, Russia, the Middle East, India and other countries and regions. As ChinaSuppliers of RSK-UL type tire coupling high-flexibility maintenance-free low-speed flexible coupling, Rokang offer Wholesale RSK-UL type tire coupling high-flexibility maintenance-free low-speed flexible coupling. The company has always adhered to the business purpose of "quality first, honest management, and customer first". We are willing to work with you with excellent products, preferential prices and thoughtful services to create a brilliant career!

Certificate Of Honor

News

GKN CV Joints for Industrial Machines: Durability & Precision
17 Apr, 2026
For heavy-duty industrial applications requiring reliable power transmission at varying angles,GKN CV Joints for Industrial Machines represent the industry ben...
Read More
Micro CV Joint suitable for wheeled robots Developed By RSK
15 Apr, 2026
A newly Micro CV Joint has been developed by RSK recently which are very suitable for the steering and suspension systems of wheeled robots, as they can solve t...
Read More
A New Anti-vibration & High-elasticity Coupling Developed By RSK
09 Apr, 2026
A newly developed Anti-vibration Assembly (Flexible Drive Shaft Coupling Assembly) from RSK has been exported and installed on a customer's luxury yacht, where ...
Read More
RSK Technology put into operation of Circular Sawing Machine --Significantly Improving Coupling Production Efficiency
07 Apr, 2026
Recently, in order to further enhance precision machining capabilities, our company officially put into operation a batch of circular sawing machines, primarily...
Read More
Gear Couplings: Selection, Maintenance & Performance Guide
03 Apr, 2026
Gear couplings remain the industry standard for high-torque power transmission in heavy industrial applications due to their exceptional durability and ability...
Read More