Product Description

Rubber Flexible Couplings for Air Compressor CHINAMFG CHINAMFG CHINAMFG CHINAMFG Rand CHINAMFG CHINAMFG CHINAMFG CHINAMFG CHINAMFG HongHangZhouan Hitachi

Product Display:                                                                                                                                                        

Company information:                                                                                                                                              

YINGFENG CONSTRUCTION MACHINERY LIMITED / HangZhou CHINAMFG MACHINERY CO., LTD specialized in:

couplings, rubber mounts, gear parts , hydraulic seals and seal kits for hydraulic hammers, rock breakers, hydraulic excavators, wheel loaders, and backhoe loaders. 

And, Our Company also supply:

Engine Parts, hydraulic piston pump and hydraulic travel motor, Swing motor assembly and hydraulic component parts, electric parts, etc. Hydraulic hammer breaker parts with piston, cylinder, chisel, through bolt, side bolt, top bush, front head bushing, accumulator, valve, etc. 

The following seal kits we also can supply:
 
1.Main pump seal kit;
2.Hydraulic pump seal kit;
3.Regulater valve seal kit;
4.Plunger pump seal kit 
5.O ring box;
6.Gear pump seal repair kit,
7.Travel motor seal kit 
8.Breaker hammer seal kit;
9.Swing motor seal kit,
10.Lever seal kit;
11.Pilot valve seal kit/PPC seal;
12.Adjuster seal kit;
13.Center joint seal kit;
14.Turing joint seal kit;
15.Servo valve seal kit;
16.Boom cylinder seal kit;
17.Arm cylinder seal kit; 
18.Bucket cylinder seal kit;
19.Control valve seal kit. 

We always try our best for all our customers and make it better and better. Welcome!

A. More than 20 yease experience in the line of the market, produce high quality excavator spare parts.
B. Factory manufacturer, factory price, quality under control.
C. One-stop shopping. We supply with various spare parts for your need, with high quality at competitive price, one-stop shopping, save your time to searching the parts you need urgent.
D. Timely delivery. ( We can handle your urgent order within 24 hours as soon as we got the payment. And We will send the parts by DHL and Fedex Express. We will require DETAIL delivery address with postcodebefore shipment. So, It will be better if you cound notice us about it in advance.)
E. Various of transportation way: Sea, Air, Bus, Express, etc
F. Parts available in stock

OUR FACTORY:

Our excavator parts factory was set up in 1988 in HangZhou city,ZheJiang Province. And in year 2011 we set up the 2nd factory. Now we are the largest excavator rubber parts supplier in southern China. Factory occupies 10,, 4655134, EX3, ZAX460MTH, ZAX480MTH, 4636444, ZX470-3, EX470, ZAX470, ZAX450-3, ZAX450-3F, ZAX5, Atlas Copco,,

HPV102, 8DC8 8DC9, CHINAMFG TierII 522192, Xihu (West Lake) Dis.de 60, CHINAMFG 1,

Atlas Copco 385, CHINAMFG 396, CHINAMFG 415, CHINAMFG 416, CHINAMFG 455, CHINAMFG 485,

Atlas Copco 486,  CHINAMFG 786, CHINAMFG 836, CHINAMFG 976, CHINAMFG 6-712, 4DNV98

Chinese Brand Excavators: 

Lonking: 6085, 200

Liugong: 60, 205, 220, 906, 907, 908, 920, 925, 936, CLG906C, CLG922LG

Yuchai: YC50-8, YC60-8, YC60-8, YC135-8, YC230, YC230-8, YC230LC-8, YC360, YC85, YC50,  YC85-7, YC60-7, YC135

Sunward: 50, 60, 70, 150

Foton: FR85-7, FR65, FR80, FR150-7,

Zoomlion: 60, 205, 230, 360 

Sany: SY55, SY60, SY215, SY230, SY210, SY220, SY310 

XCMG: 60, 150, 700

Lovol: 210

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Endurance of Helical Couplings for High Torque and Axial Motion

Helical couplings are designed to withstand a range of mechanical forces, including high levels of torque and axial motion:

• High Torque: Helical couplings are capable of transmitting high levels of torque due to their robust construction and the interlocking helical teeth. The helical design enhances the coupling’s ability to handle torque without compromising flexibility.
• Axial Motion: Helical couplings can accommodate limited axial motion without compromising their performance. This is especially beneficial in applications where shafts might experience slight axial displacement due to thermal expansion or other factors.

Engineers select helical couplings based on the anticipated torque requirements and axial motion characteristics of the application. It’s important to ensure that the selected coupling has the necessary torque rating and axial flexibility to meet the demands of the specific machinery or system.

The Role of Helical Flexibility in Compensating for Shaft Misalignment

Helical couplings are designed with helical cuts or grooves in their construction. This helical design provides flexibility, allowing the coupling to compensate for various types of shaft misalignment:

• Angular Misalignment: The helical cuts enable the coupling to flex in response to angular misalignment between the connected shafts. As the misaligned shafts rotate, the helical flexure allows them to maintain contact and transmit torque effectively.
• Radial Misalignment: Helical couplings can also accommodate radial misalignment by flexing slightly in response to the offset between the shafts. This flexibility prevents binding or excessive forces on the shafts, reducing wear and extending the coupling’s lifespan.
• Axial Misalignment: While not all helical couplings can handle significant axial movement, some designs offer limited axial compensation. The helical flexure allows a small amount of axial displacement without compromising coupling integrity.

Overall, the helical flexibility of these couplings allows them to maintain constant contact and torque transmission even when shafts are not perfectly aligned. This feature enhances the coupling’s reliability, reduces stress on the connected components, and contributes to the longevity of both the coupling and the machinery.

Impact of Design and Pitch on Helical Coupling Performance and Reliability

The design and pitch of helical couplings play a crucial role in determining their performance and reliability:

Design: The design of a helical coupling includes factors such as the number of helical elements, their shape, and the arrangement of the helix angles. A well-designed helical coupling can provide a balance between torsional stiffness and flexibility. A higher number of helical elements can increase the coupling’s torsional stiffness, making it more suitable for applications that require precise torque transmission. On the other hand, a lower number of helical elements can enhance flexibility and misalignment compensation.

Pitch: The pitch of a helical coupling refers to the distance between successive helical threads. A smaller pitch results in a finer thread, offering higher torsional stiffness and accuracy in torque transmission. Couplings with a smaller pitch are often preferred for applications with precise positioning requirements. Conversely, a larger pitch provides more flexibility and misalignment compensation, making it suitable for applications with dynamic loads and vibrations.

Choosing the appropriate design and pitch depends on the specific application requirements. Applications demanding high torsional stiffness and accurate torque transmission may benefit from a coupling with a smaller pitch and more helical elements. Meanwhile, applications involving misalignment accommodation and dynamic loads may favor a larger pitch and fewer helical elements to maintain flexibility and shock absorption.

Ultimately, a well-matched design and pitch ensure that the helical coupling can effectively balance the need for torque transmission, misalignment compensation, and resilience to varying operating conditions, contributing to its overall performance and reliability in mechanical systems.

editor by CX 2024-04-09