China Professional CHINAMFG Js300 Series High Quality Performance Full Demount Type Spring Flexible Grid Couplings

Product Description

JS300 Series Full Demount Type Grid Coupling

♦Description
Grid Coupling is widely used in metallurgy, mining, lifting, transportation, petroleum, chemical, ships, textile, light industry, agricultural machinery, printing machines and pumps, fans, compressors, machine tools and other mechanical equipment and industry shaft transmission.
♦Feature
1.The serpentine spring as the elastic element, the elastic strong at the same time, greatly improves the grid coupling torque, widely used in heavy machinery and general machinery. The serpentine spring special technology department, has long service life, allowing higher speed, has good ability to compensate in the axial, radial and angle.

2.High transmission efficiency, start safety. Transmission efficiency of up to 99.47%, short-time overload capacity is 2 times the rated torque, operation safety.

3.Simple structure, convenient assembly and disassembly, long service life.

4.Damping effect is good to avoid the resonance.

♦Basic Parameter and Main Dimension

Model	Norminal Torque N.m	Speed r/min	Y,Z Bore d1,d2		D	BE		A	L	F	Clearance (K)	Oil injection Kg	No bore mass Kg
			Max	Min		Min	Max
JS301	45	3600	28	14	98	90	200	40	52	28	3	0.03	3.8
JS302	125	3600	35	14	110	90	220	50	52	32	3	0.03	5.2
JS303	224	3600	42	14	120	90	220	55	52	38	3	0.06	8.4
JS304	400	3600	48	14	138	110	220	65	62	40	3	0.06	12.4
JS305	630	3600	55	19	155	130	330	75	62	43	3	0.09	19.5
JS306	900	3600	65	19	170	130	330	90	82	47	3	0.09	24.4
JS307	1800	3500	75	28	195	190	410	105	112	50	4	0.17	39
JS308	3150	3500	85	28	212	190	410	125	112	57	4	0.26	60
JS309	5600	2450	100	42	248	210	410	140	142	–	6	0.43	98
JS310	8000	2300	110	42	274	210	410	160	142	–	6	0.51	136
JS311	12500	2000	125	60	324	250	410	180	142	–	6	0.74	195
JS312	18000	1800	150	70	368	260	410	220	172	–	6	0.91	257
JS313	25000	1600	180	70	400	270	410	255	172	–	6	1.14	338
JS314	35500	1500	200	110	458	350	380	270	212	–	6	1.9	447
JS315	50000	1350	220	120	500	360	410	305	212	–	6	2.8	547
JS316	63000	1220	250	130	565	390	450	360	252	–	6	3.5	829
JS317	90000	1100	275	150	610	400	500	395	252	–	6	3.7	1090
JS318	125000	1050	305	150	675	420	540	440	302	–	6	4.4	1468
JS319	180000	900	330	170	755	450	580	500	302	–	6	5.6	1840

Note:
When ordering JS300 coupling, in addition to correctly marking the model and specification according to the specified marking method, it is also required to specify the length of the dimension “BE” between the 2 shaft ends.
If not specified when ordering, the minimum “BE” size shall be used to purchase the coupling.

♦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 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 months under normal circumstance.

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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Materials Used in Manufacturing Grid Couplings

Grid couplings are designed to withstand high torque and provide flexibility while transmitting power in various industrial applications. The materials used in manufacturing grid couplings are chosen for their mechanical properties and durability. The common materials include:

• Cast Iron: Cast iron is a popular choice for the grid, hub, and outer flange components of the coupling. It offers excellent strength and wear resistance, making it suitable for heavy-duty applications.
• Steel: Steel is often used for the grid element or grid springs. It provides the required flexibility and resilience to handle misalignments and shock loads effectively.
• Alloy Steel: Alloy steel may be used for certain high-performance grid couplings. It offers enhanced strength and toughness, making it suitable for demanding industrial environments.
• Stainless Steel: Stainless steel is employed when corrosion resistance is a primary concern. It is commonly used in couplings for applications in corrosive or hygienic environments.
• Non-Metallic Materials: Some modern grid couplings use non-metallic materials, such as high-strength composites or synthetic polymers, for the grid element. These materials offer excellent dampening properties, reduce noise, and prevent electrical conductivity.

The specific material selection depends on factors like the application requirements, environmental conditions, and the level of load and torque the coupling needs to handle. Manufacturers carefully engineer grid couplings to ensure they meet the performance demands of the intended application while providing reliable and efficient power transmission.

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Explaining the concept of backlash and how it affects motor coupling performance.

Backlash is a crucial concept in motor couplings and other mechanical systems involving gears or interlocking components. It refers to the amount of clearance or play between mating components, resulting in a delay or gap before motion is transmitted from one component to the other. In the context of motor couplings, backlash can have both positive and negative effects on performance.

1. Effects of Backlash on Motor Coupling Performance:

Positive Effects:

• Shock Absorption: Backlash in flexible couplings can act as a shock-absorbing mechanism, reducing the impact of sudden loads or vibrations on the motor and driven load. This property helps protect the motor and other connected components from damage.
• Misalignment Compensation: Backlash allows some degree of angular, parallel, and axial misalignment between the motor and driven load. This feature is particularly beneficial in applications where precise alignment is challenging to achieve.

Negative Effects:

• Reduced Precision: Backlash introduces a degree of play or slop in the system, leading to reduced precision and accuracy in motion transmission. This can be problematic in applications requiring tight positioning control.
• Resonance and Vibration: Excessive backlash can lead to vibration and resonance issues, especially at high speeds. This can affect the overall performance and efficiency of the system.
• Reversing Loads: Backlash can cause a dead zone when reversing the direction of motion. This means that before the load reverses, the clearance must be taken up, leading to potential jerks or delays in motion.

2. Controlling Backlash in Motor Couplings:

Controlling backlash is essential to optimize motor coupling performance for specific applications. Manufacturers can design couplings with varying degrees of backlash depending on the application’s requirements. For instance:

• Low Backlash Designs: Some couplings are engineered to minimize backlash, making them suitable for applications demanding high precision and minimal play.
• Adjustable Backlash: Certain couplings allow users to adjust the amount of clearance, enabling customization based on the specific load conditions and system requirements.
• Preloading: Preloading is a technique used to minimize backlash by applying a slight tension or compression force between the mating components. This eliminates the clearance and enhances precision.

Ultimately, selecting the right motor coupling with the appropriate level of backlash involves considering factors such as the application’s load characteristics, required precision, speed, and potential vibration issues. Understanding and managing backlash play a critical role in maximizing the efficiency and reliability of motor couplings in various mechanical systems.

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Comparison between Grid Couplings and Other Types of Flexible Couplings

Flexible couplings are essential components in mechanical power transmission systems, and different types of couplings offer various features and advantages. Here is a comparison between grid couplings and some other common types of flexible couplings:

Coupling Type	Advantages	Disadvantages	Applications
Grid Couplings	High torque capacity Misalignment tolerance Vibration damping Shock load absorption Torsional flexibility Easy installation and maintenance	Relatively larger size and weight compared to some other couplings Higher initial cost compared to certain elastomeric couplings	Heavy-duty industrial machinery Pumps, compressors, fans, mixers Mining, steel mills, power generation
Elastomeric Couplings	High flexibility and misalignment accommodation Compact size and lightweight Lower initial cost compared to grid couplings Excellent damping of vibrations Electrically isolating properties	Lower torque capacity compared to grid couplings Less suitable for high shock loads Limited temperature and chemical resistance	General industrial machinery HVAC systems Pumps, conveyors, small motors
Gear Couplings	High torque capacity Misalignment accommodation Compact size Good for high-speed applications	More complex design compared to grid couplings Higher initial cost Not as effective in damping vibrations	Steel and paper mills Marine and construction equipment High-speed machinery

The choice of coupling type depends on the specific requirements of the application. Grid couplings are favored in heavy-duty industrial machinery that requires high torque capacity and misalignment tolerance. Elastomeric couplings are commonly used in general industrial applications where flexibility and damping of vibrations are crucial. Gear couplings find applications in high-speed machinery and equipment. Ultimately, the selection of the right coupling type involves considering factors such as torque requirements, misalignment conditions, operating speed, space constraints, and budget considerations.

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editor by CX 2024-02-16