Product Description

UL Type Tire Tyre Coupling (GB/T5844-2002)

♦Description
UL tire coupling is an elastic coupling with high performance because 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 tire coupling is -20~80 degrees Celsius, transmitting torque 10~20000N.m, tire coupling is suitable for wet dust, shock, vibration, reversing the changeable and frequent starting work environment.

♦Main Dimension & Characteristic Parameter

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 the J type of 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.  

♦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 Service
1. Design Services
Our design team has experience in Cardan shafts 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 new models when there are new cars in the market.

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

♦FAQ
Q 1: Are you a trading company or a 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 customers with customized PDF or AI format artworks.

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 an excellent 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 1 pcs.

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: T/T. 
 

♦Contact Us

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

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Durometer Hardness in Rubber Coupling Materials

Durometer hardness is a measure of the material’s resistance to indentation or penetration by a specified indenter. In rubber couplings, durometer hardness is a critical characteristic that influences their performance. It is typically measured using a durometer instrument.

The durometer hardness scale commonly used for rubber materials is the Shore durometer scale, indicated by a letter followed by a numerical value (e.g., Shore A, Shore D). Lower durometer values indicate softer and more flexible rubber, while higher values indicate harder and less flexible rubber.

In relation to rubber couplings:

• Higher Durometer (Harder Rubber): Couplings made from harder rubber materials have better torque transmission capabilities and higher load-bearing capacity. However, they may offer less vibration isolation and misalignment compensation.
• Lower Durometer (Softer Rubber): Couplings made from softer rubber materials provide greater flexibility, vibration damping, and misalignment compensation. They are suitable for applications where vibration reduction is crucial.

The choice of durometer hardness depends on the specific requirements of the application, including torque levels, vibration, misalignment, and desired performance characteristics.

Comparison of Rubber Couplings with Other Flexible Coupling Types

Rubber couplings, elastomeric couplings, and disc couplings are all flexible coupling options used in various mechanical systems. Here’s a comparison of rubber couplings with these alternatives:

Rubber Couplings:

• Transmit torque while damping vibrations through the flexibility of rubber elements.
• Provide good misalignment compensation and shock absorption.
• Relatively simple construction and cost-effective.
• Effective in reducing noise and vibration in applications.
• Suitable for moderate to high torque applications with moderate misalignment.

Elastomeric Couplings:

• Similar to rubber couplings, utilize elastomeric materials for flexibility and vibration damping.
• Offer higher torque capacity and stiffness compared to rubber couplings.
• Provide better misalignment compensation and torsional stiffness.
• Wider range of sizes and configurations for various applications.
• Commonly used in pumps, compressors, and other machinery.

Disc Couplings:

• Use a series of metal discs to transmit torque and accommodate misalignment.
• Offer high torsional stiffness and accuracy in torque transmission.
• Can handle higher speeds and torque compared to rubber or elastomeric couplings.
• Require precision in manufacturing and installation.
• Used in applications requiring high precision and minimal backlash.

When choosing between these flexible coupling types, considerations such as torque requirements, misalignment compensation, torsional stiffness, and application-specific needs play a significant role in making the appropriate selection. Each type has its advantages and limitations, making it important to assess the specific requirements of the machinery system.

Role of Rubber Flexibility in Accommodating Misalignment

Rubber couplings are designed with a flexible element, usually made of elastomers, that plays a crucial role in accommodating misalignment between connected shafts. The flexibility of the rubber element allows it to deform and absorb angular, axial, and radial misalignments, providing several benefits:

1. Angular Misalignment: When the input and output shafts are not perfectly aligned in terms of angle, the rubber element can flex and twist, allowing the coupling to transmit torque even when the axes are not parallel.

2. Axial Misalignment: Axial misalignment occurs when the shafts move closer together or farther apart along their axis. The rubber element can compress or extend, adjusting the distance between the shafts without hindering torque transfer.

3. Radial Misalignment: Radial misalignment refers to the offset between the centers of the shafts. The rubber element can bend in response to radial displacement, ensuring that the coupling remains operational while accommodating the offset.

This flexibility not only enables the rubber coupling to handle misalignment but also helps prevent excessive stress on the connected machinery. By absorbing shock loads and distributing forces, the rubber element reduces wear and tear on components and minimizes the risk of premature failure.

In essence, the rubber’s flexibility in the coupling acts as a buffer against misalignment-induced stresses, contributing to smoother operation, improved longevity, and reduced maintenance in mechanical systems.

editor by CX 2023-12-21