Product Description

Product Description

LLA Type Tyre Coupling

The LLA Flexible Tyre Coupling is a kind of high elastic coupling, with good damping buffer and superior offset compensation performance.
The working temperature of 20~80 degrees Celsius, transmitting torque 10~20000NM, suitable for damp, dust, shock, vibration, reversing the changeable and frequent starting working conditions, and convenient assembly and disassembly, no lubrication, durable and reliable. Non standard couplings are made in accordance with special needs. In overloading work and half coupling, there will be no malignant accidents.

Detailed Photos

Product Parameters

LLA Type Tyre Coupling Main Dimension And Parameter(JB/T10541-2005)

Type	Main dimension			Number of screws Md×L	Shaft hole diameter d dz	Shaft hole length		Allowable Torque	Allowable Speed	Rotary inertia	Mass
	D	D1	S			L	L1	Tn	(n)	kg·m2	kg
						Y J1 J	Z	N·m	r/min
LLA1	60	20	4	12-M4×10	6-11	16-25	–	10	5000	0.0004	0.35
LLA2	100	36	8	12-M6×20	8-19	14-42	35	20	5000	0.005	1.33
LLA3	135	48	12	12-M8×25	18-28	30-62	35-50	80	4000	0.571	3.4
LLA4	180	64	18	12-M10×30	25-38	44-82	50-65	160	3150	0.071	7.4
LLA5	210	80	18	16-M10×40	32-50	60-112	65-90	315	2800	0.154	13.4
LLA6	265	100	24	16-M12×40	40-56	84-112	90	630	2500	0.46	22.6
LLA7	310	120	28	16-M16×50	48-75	84-142	90-120	1250	2000	1.86	34.8
LLA8	400	150	38	16-M20×60	60-95	107-172	120-145	2500	1600	3.57	74.3
LLA9	450	190	42	20-M20×70	80-125	132-212	145-180	5000	1250	6.47	111
LLA10	550	230	52	24-M24×80	100-150	167-252	180-220	10000	1000	17.55	191
LLA11	700	280	70	32-M30×90	130-180	202-302	220-270	20000	800	54.1	373

Note:
1.For 2 half coupling Shaft holes, Y,J,J₁ type shaft hole may be used as required,but Z,J type shaft hole shall not be used at both ends.

2.S dimension should take into consideration if Z₁ shaft hole is to be used.

Company Profile

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. We company actively introduce 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 shaft relating to product design and development. If you have any needs for your new product or wish to make further improvements, we are here to offer our support.

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 the new model when there is new cars in the market.

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

FAQ

Q 1: Are you 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 then cost of sample will be deducted.

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

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 are the Temperature and Speed Limits for Tyre Coupling Applications?

The temperature and speed limits for tyre coupling applications depend on various factors, including the specific design and material of the coupling, the type of rubber used in the tyre element, and the manufacturer’s guidelines. It is essential to adhere to these limits to ensure the safe and efficient operation of the coupling. Here are some general considerations regarding temperature and speed limits for tyre coupling applications:

• Temperature Limits: The temperature limits for tyre couplings are primarily determined by the elastomeric material used in the tyre element. The rubber in the tyre must be able to withstand the operating temperatures in the application without experiencing excessive degradation or hardening. Common elastomers used in tyre couplings, such as natural rubber, synthetic rubber, or polyurethane, have different temperature ranges. For instance, standard rubber couplings typically have a temperature range of -30°C to 80°C (-22°F to 176°F), while high-temperature variants can handle temperatures up to 120°C (248°F) or more. For applications operating at extreme temperatures beyond these limits, special high-temperature or low-temperature materials may be required.
• Speed Limits: The speed limits of tyre couplings are influenced by the coupling’s design, size, and the material properties of the rubber tyre element. As the rotational speed of the coupling increases, centrifugal forces can come into play, affecting the performance and stability of the coupling. Manufacturers provide specific speed ratings for their tyre couplings, indicating the maximum allowable RPM (revolutions per minute) or rotational speed. Exceeding these speed limits can lead to premature wear, reduced damping capability, and potential coupling failure. It is essential to choose a coupling with a speed rating that comfortably exceeds the application’s operating speed to account for any variations or transient conditions.

For both temperature and speed limits, it is crucial to refer to the manufacturer’s technical documentation, product specifications, or consult with their engineering support team to determine the exact limits for a specific tyre coupling model. Manufacturers conduct rigorous testing and analysis to establish these limits, ensuring safe and reliable performance under the stated operating conditions.

By understanding and adhering to the temperature and speed limits of the tyre coupling, users can select the appropriate coupling for their application and ensure its longevity and reliability in the intended operating environment.

Can Tyre Couplings Accommodate Angular and Axial Misalignments Simultaneously?

Yes, tyre couplings are designed to accommodate both angular and axial misalignments simultaneously. The unique design of tyre couplings allows them to flex in multiple directions, making them highly versatile in compensating for various types of misalignments between the connected shafts.

The elastomeric tyre element of the coupling provides the necessary flexibility to accommodate angular misalignment. As the shafts rotate and their axes deviate from a perfect alignment, the tyre element deforms slightly to allow for the angular displacement. This helps reduce the reactive forces and torques that would otherwise be transmitted to the connected machinery, preventing excessive wear and damage.

Moreover, the tyre element’s elastic properties enable it to absorb axial misalignment as well. When one shaft moves axially relative to the other, the tyre element compresses or expands to accommodate the axial displacement. This feature is particularly beneficial in applications where axial movement is common, such as in reciprocating machinery.

By simultaneously accommodating angular and axial misalignments, tyre couplings help to minimize the stresses on the machinery and ensure smoother power transmission. However, it is essential to ensure that the misalignments are within the specified limits recommended by the coupling manufacturer to prevent overloading and premature wear of the coupling components.

In conclusion, tyre couplings are well-suited for applications with combined angular and axial misalignments, providing a reliable and efficient solution for power transmission in various industrial settings.

Are Tyre Couplings Suitable for High Torque and Misalignment Conditions?

Yes, tyre couplings are well-suited for high torque and misalignment conditions in various industrial applications. Their unique design and material properties make them an excellent choice for such demanding operating conditions.

High Torque:

Tyre couplings can efficiently transmit high levels of torque between connected shafts. The rubber or synthetic tyre element in the coupling acts as a resilient medium that can withstand significant torque without failing. As torque is applied to one shaft, the tyre deforms slightly, transmitting the torque to the other shaft. This flexibility enables tyre couplings to handle heavy loads and high torque transmission while maintaining the structural integrity of the coupling.

The use of high-quality rubber or synthetic materials in the tyre ensures that the coupling can endure repeated torque cycles without significant wear or degradation. Additionally, tyre couplings can accommodate dynamic torque fluctuations and torsional vibrations, making them suitable for applications where torque loads may vary over time.

Misalignment Conditions:

One of the key advantages of tyre couplings is their ability to accommodate misalignment between the connected shafts. They can effectively handle angular, parallel, and axial misalignments. When the shafts are misaligned, the flexible tyre element can deform and twist slightly, allowing for a smooth transfer of torque while reducing stress on the machinery and components.

In situations where misalignment is common, such as in machinery subjected to thermal expansion or vibration-induced movement, tyre couplings excel at maintaining reliable power transmission. They help prevent premature wear on shafts, bearings, and other connected components, leading to improved system longevity and reduced maintenance costs.

It is essential to select the appropriate tyre coupling size and specifications based on the specific torque and misalignment requirements of the application. By choosing the right coupling and ensuring proper installation, tyre couplings can deliver exceptional performance in high torque and misalignment conditions, contributing to the smooth and efficient operation of industrial systems.

Summary:

Yes, tyre couplings are suitable for high torque and misalignment conditions due to their ability to transmit significant torque, dampen vibrations, and accommodate misalignments. Their resilience and flexibility make them a reliable choice for a wide range of industrial applications where torque loads and misalignment are prevalent.

editor by CX 2024-03-10