Product Description

UL Type Tyre Coupling

UL tyre coupling is an elastic coupling with high performance, because of the elastic element is as a whole tire body, the tire coupling has good shock damping and the shaft offset compensation performance, absorbing excellent and convenient assembly and disassembly, no lubrication, easy maintenance, long life and other advantages. The working temperature of tyre coupling -20~80 degrees Celsius, transmitting torque 10~20000N.M, tyre coupling, suitable for wet dust, shock, vibration, reversing the changeable and frequent starting work environment.

♦UL Type Tyre Coupling Main Dimension And Characteristic Parameter (GB/T5844-2002)

Type	Nominal torque	Instantaneous maximum torque	Speed		Diameter of shaft hole(d)		Length of shaft hole(L)		D	B	Mass	Rotary inertia	Limited compensation
			rpm		mm
	N·m	N·m	Steel	Iron	Steel	Iron	J,J1 type	Y type	mm		kg	kg·m2	Axial	Radial	Angle
UL1	10	31.5	5000	3500	11	11	22	25	80	20	0.7	0.0003	1.0	1.0	1º
					12,14	12,14	27	32
					16,18	16	30	42
UL2	25	80	5000	3000	14	14	27	32	100	26	1.2	0.0008
					16,18,19	16,18,19	30	42
					20,22	20	38	52
UL3	63	180	4500	3000	18,19	18,19	30	42	120	32	1.8	0.0571	1.6	2.0
					20,22,24	20,22	38	52
					25	–	44	62
UL4	100	315	4300	3000	20,22,24	20,22,24	38	52	140	38	3	0.004
					25,28	25	44	62
					30	–	60	82
UL5	160	500	4000	3000	24	24	38	52	160	45	4.6	0.0084	1.6	2.0
					25,28	25,28	44	62
					30,32,35	30	60	82
UL6	250	710	3600	2500	28	28	44	62	180	50	7.1	0.0164
					30,32,35,38	30,32,35	60	82
					40	–	84	112
UL7	315	900	3200	2500	32,35,38	32,35,38	60	82	200	56	10.9	0.571	2.0	2.5	1º
					40,42,45,48	40,42	84	112
UL8	400	1250	3000	2000	38	38	60	82	220	63	13	0.0448	2.5	3.0	1º
					40,42,45,48,50	40,42,45	84	112
UL9	630	1800	2800	2000	42,45,48,50,55,56	42,45,48,50,55	84	112	250	71	20	0.571			3.6º
					60	–	107	142
UL10	800	2240	2400	1600	45*,48*,50,55,56	45*,48*,50,55,56	84	112	280	80	30.6	0.1596	3.0	3.6	1º30′
					60,63,65,70	60,63,65	107	142
UL11	1000	2500	2100	1600	50*,55*,56*	50*,55*,56*	84	112	320	90	39.0	0.2792
					60,63,65,70,71,75	60,63,65	107	142
UL12	1600	4000	2000	1600	55*,56*	55*,56*	84	112	360	100	59	0.5356	3.6	4.0
					60*,63*,65*,70,71,75	60*,63*,65*,70,71,75	107	142
					80,85	80	132	172
UL13	2500	6300	1800	1600	63*,65*,70*,71*,75*	63*,65*,70*,71*,75*	107	142	400	110	81	0.896	4.0	4.5
					80,85,90,95	80,85,90,95	132	172
UL14	4000	10000	1600	1400	75*	75*	107	142	480	130	145	2.2616		5.0
					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	222	4.6456	5	5.6	1º30′
					100*,110*,120*,125*	100*,110*,120*,125*	167	212
UL16	10000	20000	1000	1000	100*,110*,120*,125*	100*,110*,120*,125*	167	212	630	180	302	8.0924	5	6.0
					130,140	130,140	202	252
UL17	16000	31500	900	850	120*,125*	–	167	212	750	210	561	20.018		6.7	1º30′
					130*,140*,150*	130*,140*,150*	202	252
					160*	160*	242	302
UL18	25000	59000	800	750	140*,150*	–	202	252	900	250	818	43.053		8.0
					160*,170*,180*	160*,170*,180*	242	302

Note:
1.Shaft hole diameter with * is J type shaft hole that is permitted by the structure.(GB/T3852-2008)
2.Mass and rotary inertia of coupling are approximations of the maximum values of each type.

♦Product Show

♦Other Products List

Transmission Machinery  Parts Name	Model
Universal Coupling	WS,WSD,WSP
Cardan Shaft	SWC,SWP,SWZ
Tooth Coupling	CL,CLZ,GCLD,GIICL, GICL,NGCL,GGCL,GCLK
Disc Coupling	JMI,JMIJ,JMII,JMIIJ
High Flexible Coupling	LM
Chain Coupling	GL
Jaw Coupling	LT
Grid Coupling	JS

♦Our Company

HangZhou CHINAMFG Machinery Manufacturing Co., Ltd. is a high-tech enterprise specializing in the design and manufacture of various types of coupling. There are 86 employees in our company, including 2 senior engineers and no fewer than 20 mechanical design and manufacture, heat treatment, welding, and other professionals.

Advanced and reasonable process, complete detection means. Our company actively introduces foreign advanced technology and equipment, on the basis of the condition, we make full use of the advantage and do more research and innovation. Strict to high quality and operate strictly in accordance with the ISO9000 quality certification system standard mode.

Our company supplies different kinds of products. High quality and reasonable price. We stick to the principle of “quality first, service first, continuous improvement and innovation to meet the customers” for the management and “zero defect, zero complaints” as the quality objective. 

♦Our Services
1.Design Services
Our design team has experience in Cardan shafts relating to product design and development. We are here to offer our support if you have any needs for your new product or wish to make further improvements.

2.Product Services
raw materials → Cutting → Forging →Rough machining →Shot blasting →Heat treatment →Testing →Fashioning →Cleaning→ Assembly→Packing→Shipping

3.Samples Procedure
We could develop the sample according to your requirement and amend the sample constantly to meet your need.

4.Research & Development
We usually research the new needs of the market and develop new models when there are new cars in the market.

5.Quality Control
Every step should be a special test by Professional Staff according to the standard of ISO9001 and TS16949.

♦FAQ
Q 1: Are you a trading company or manufacturer?
A: We are a professional manufacturer specializing in manufacturing
various series of couplings.

Q 2:Can you do OEM?
Yes, we can. We can do OEM & ODM for all the customers with customized artworks of PDF or AI format.

Q 3:How long is your delivery time?
Generally, it is 20-30 days if the goods are not in stock. It is according to quantity.

Q 4: Do you provide samples? Is it free or extra?
Yes, we could offer the sample but not for free. Actually, we have a very good price principle, when you make the bulk order the cost of the sample will be deducted.

Q 5: How long is your warranty?
A: Our Warranty is 12 months under normal circumstances.

Q 6: What is the MOQ?
A: Usually our MOQ is 1pcs.

Q 7: Do you have inspection procedures for coupling?
A:100% self-inspection before packing.

Q 8: Can I have a visit to your factory before the order?
A: Sure, welcome to visit our factory.

Q 9: What’s your payment?
A:1) T/T. 

♦Contact Us

Web: huadingcoupling
Add: No.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China

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What materials, such as steel or brass, are commonly used in manufacturing hydraulic couplings?

Hydraulic couplings are manufactured using a variety of materials, and the choice of material depends on the specific application requirements and the operating conditions of the hydraulic system. Some common materials used in manufacturing hydraulic couplings include:

• Steel: Steel is one of the most widely used materials for hydraulic couplings due to its excellent strength, durability, and resistance to wear and corrosion. Carbon steel, stainless steel, and alloy steel are commonly used to manufacture hydraulic couplings for a wide range of applications.
• Brass: Brass is another popular material for hydraulic couplings, especially in low-pressure and non-corrosive environments. Brass couplings offer good conductivity and are commonly used in fluid systems that require electrical grounding.
• Aluminum: Aluminum couplings are lightweight and have good corrosion resistance. They are often used in applications where weight reduction is critical, such as aerospace and marine industries.
• Cast Iron: Cast iron couplings provide high strength and durability, making them suitable for heavy-duty industrial applications with higher pressures and temperatures.
• Stainless Steel: Stainless steel couplings are preferred for applications where resistance to corrosion and chemical exposure is essential. They are commonly used in the food and pharmaceutical industries.
• Plastics: Some hydraulic couplings are made from various plastics, such as polypropylene or nylon. Plastic couplings are lightweight, corrosion-resistant, and suitable for low-pressure applications.
• Bronze: Bronze couplings offer good corrosion resistance and are commonly used in marine and offshore applications.
• Titanium: Titanium couplings are used in specialized applications where high strength and corrosion resistance are required, such as in the chemical and petrochemical industries.

Each material has its advantages and limitations, and the selection of the appropriate material depends on factors such as the operating pressure, temperature, chemical compatibility, weight requirements, and cost considerations of the specific hydraulic system.

Manufacturers of hydraulic couplings provide detailed specifications and material options for their products, enabling users to choose the most suitable coupling material for their application needs.

Can hydraulic couplings be retrofitted into existing hydraulic systems for improved performance?

Yes, hydraulic couplings can be retrofitted into existing hydraulic systems to enhance performance, improve reliability, and address specific system requirements. Retrofitting hydraulic couplings can be a cost-effective way to upgrade older systems without the need for extensive modifications or complete replacements.

Retrofitting hydraulic couplings may be beneficial for several reasons:

• Improved Efficiency: Upgrading to modern hydraulic couplings with better design features can reduce energy losses and improve overall system efficiency. For example, switching from older, less efficient couplings to newer, more streamlined designs can optimize fluid flow and reduce pressure drop.
• Leak Reduction: Older hydraulic systems may experience fluid leaks due to worn-out or damaged couplings. Retrofitting with new, high-quality couplings equipped with advanced sealing technologies can significantly reduce the risk of leaks, leading to better system reliability and environmental safety.
• Higher Pressure and Flow Capabilities: Newer hydraulic couplings may offer higher pressure and flow ratings, allowing the system to handle increased demands or heavier loads. This can be crucial for applications that require more power and performance.
• Material Compatibility: In some cases, existing hydraulic systems may have components made from materials that are not compatible with certain hydraulic fluids. Retrofitting with appropriate couplings can ensure compatibility and prevent corrosion or other fluid-related issues.
• Space Constraints: Modern hydraulic couplings often come in more compact designs, which can be advantageous for systems with limited space. Retrofitting with smaller couplings may allow for better system integration and improved layout.
• Environmental Compliance: Retrofitting hydraulic couplings can help align the system with current environmental regulations and industry standards, reducing the risk of potential fines or non-compliance issues.

Before retrofitting hydraulic couplings, careful evaluation of the existing system is necessary to ensure compatibility and identify specific areas for improvement. Factors such as thread type, size, pressure rating, flow capacity, and material compatibility must be considered to select the appropriate couplings for the retrofit.

It’s essential to consult with hydraulic coupling manufacturers or experienced fluid power professionals when planning a retrofit. They can provide guidance on suitable coupling options and recommend the necessary modifications or adjustments to optimize system performance.

In conclusion, retrofitting hydraulic couplings into existing hydraulic systems can be a viable solution for enhancing performance, reducing leaks, and achieving better overall efficiency and reliability. It allows businesses to leverage the latest advancements in hydraulic coupling technology to extend the lifespan and improve the functionality of their existing hydraulic systems.

Can you explain the working principle of a hydraulic coupling and its advantages over other coupling types?

A hydraulic coupling operates based on the principle of hydraulic fluid transmission to transfer power from one shaft to another. It consists of two main parts: the input (driving) element and the output (driven) element, both of which have specially designed vanes or blades submerged in hydraulic fluid.

When the input element rotates, it creates a flow of hydraulic fluid around the vanes. The fluid flow generates pressure on the output element, causing it to start rotating. This pressure difference between the input and output elements facilitates the transfer of torque and power from the driving shaft to the driven shaft.

The working principle of a hydraulic coupling allows it to accommodate misalignments and torsional vibrations. It effectively isolates shock loads, provides overload protection, and dampens vibrations, making it ideal for various industrial applications.

Advantages of hydraulic couplings over other coupling types include:

1. Misalignment Tolerance: Hydraulic couplings can handle significant shaft misalignments, reducing wear and tear on the system and prolonging the life of the components. Other coupling types may have limitations in this regard.
2. Vibration Damping: Hydraulic couplings can effectively dampen vibrations, preventing damage to connected equipment and promoting smoother operation. This advantage is especially critical in precision machinery and applications where vibrations can affect accuracy and performance.
3. Overload Protection: Hydraulic couplings offer built-in overload protection. When the torque exceeds a certain threshold, the fluid coupling slips or disengages, preventing damage to the system and its components. Other coupling types may not have this automatic overload protection.
4. Smooth Start-up: Hydraulic couplings provide gradual power transmission during start-up, which helps minimize shock and stress on the system. This feature is beneficial for systems with heavy loads or delicate components.
5. Quiet Operation: Due to their vibration-damping properties, hydraulic couplings contribute to quieter operation, reducing noise levels in the machinery compared to some other coupling types.
6. Wide Range of Applications: Hydraulic couplings are suitable for a wide range of industrial applications, including heavy machinery, mining equipment, conveyors, pumps, and more. Their adaptability and robust performance make them a popular choice in various industries.

While hydraulic couplings offer many advantages, the selection of the appropriate coupling type ultimately depends on the specific requirements of the application, such as torque, speed, misalignment, and environmental conditions. Properly choosing and maintaining the coupling can significantly improve the efficiency, reliability, and overall performance of fluid power transmission systems in industrial settings.

editor by CX 2024-04-16