China Supplier High Quality Lowest Price Helical Flexible Shaft Coupling Used in Sewing Machine

1.Shaft collar selection method

Choose shaft collar according to load

1.select the shaft collar should meet:

a. transmitted torque Mt ≥ M

b. axial force:Ft ≥ Fx

c. transfer force:Ft ≥ F2X+(M X10-3)2

d. radial force Pt ≥ Fr/d.1 X103

2,the rated load of a connection which to use numerous shaft sleeve.

When Rated load of a shaft sleeve is less than required transfer load, then can set more than two shaft sleeves in series, the total rated load:

Mtn=m.Mt

Type in: Mtn - n shaft sleeve’s rated load:M - load coefficient (m value shown in chart A)

Whether you have your own freightforward or you would like us to arrange the shipment. Whether you require delivery FOB to a port in China Or CIF to a port near you, we are happy to quote and supply whichever may you choose. Please feel free to let me know your option.

1.100% Western Union or Paypal in advance ,specially for small amount 

2.100% T/T or western union in advance for small quantity order

3.30%-70% T/T in advance, balance before shipment for large order or long delivery time orders

4.10%-100% irrevocable L/C at sight

How to choose a suitable shaft couplings?

(1) Please confirm the size of coupling you need.

(2) What is the material you need, please?

(3) What is the outer diameter, inner diameter and length you need, please?  

(4) What is the requirement on torque, speed and etc.  

What should I do, when I discover the broken products? 

Contact us at the moment you receive goods.

How can I get some samples? 

Welcome your trial order! We are honored to offer you samples. 

What is your minimum order price?

It's depend on the size of the products.

Are you a factory or trading Company? 

We are a Manufacturer,

What’s your main product?

Our main products are: universal coupling.gear coupling.chain coupling,and so on .

Is the sample free charge?

The sample fee and shipping cost are needed,

We will return the sample fee from bulk production.

May I have my own design?

Yes, you could have your own design here.

Since we have our own factory, we can control the quality strictly.

 Established in 1998 and located on Bieqiao Town of Liyang City, our company changed the name to Liyang Weilian Transmission Machinery Co., Ltd in 2004. We mainly focus on production of metallic membrane type, quincunx type, star type, pin type, friction type and serpentine spring type flexible coupling and locking assembles. Our products passed ISO 9001:2008 certification and were sold all around the globe with high praise from our customers.

Our products are mainly applied in machinery industries such as machine tools, chemicals, instrument, printing, water pump, plastic machine, fodder and fans. Currently we have more than 160 long-term business partners across China such as Suzhou Newway (American-funded), Nanjing Lih Chang Machinery Co., Ltd, Weinig Machinery Co., Ltd (German-founded), ITT (American-funded),  Buhler AG (Changzhou) (Swiss-funded), Nanjing No.2 Machinery Co., Ltd, Nanjing Rubber & Plastics Machine Co., Ltd, Zhejiang Rifa Textile Machinery Co., Ltd, Dalian Yimei Machinery Co.,Ltd, Beijing Chang Yi and Automation Equipment Manufacturing Co., Ltd, Changzhou Dongshen Pumps Co., Ltd, Shandong Luneng Weida & Weineng Machine Co., Ltd, Weihai Huadong Automation Co., Ltd, Shenyang Machine Tools Co.,Ltd, Anhui Hongqing Precision Machine Co., Ltd, Qingdao Double Star Holding Co.,Ltd, Shanghai Machine Tool Works Ltd, Shanghai YOCO Printing Machinery Co., Ltd, Shanghai YAWA Printing Machinery Co., Ltd and Jiangsu Yangli Group, Jiangsu Tailong Group. Our company witnesses an annual growth of 30% in production and sales. We hope to cooperate with new and old customers so as to create a brighter future.