Specification:

Note: The coupling is double joint, and has keyway.

"12x23x83mm(keyway)" means its inner diameter is 12mm, outer diameter is 23mm and length is 83mm, with keyway.

For a variety of general-purpose machinery occasion

Each section of maximum rotation angle of 30 °

Material: 42CrMo Alloy teel

Surface Treatment: Blackening or Polishing

Seiko Quality, Fine Workmanship, Dimensional Accuracy

Over-compact honing, precision fit, durable wear resistance

Maximum articulation angle is 30

Size"Inner Diameter(d) * Outer Diameter(D) * Length(L2):

8x16x58mm(keyway),10x20x67.5mm(keyway),12x23x83mm(keyway),14x25x94.5mm(keyway),16x32x117mm(keyway),20x36x139mm(keyway)(if you need other size, please send us a message)

Package Included:

Universal Joint x 1

• All items will be shipped to worldwide.
• All items will only be shipped to the ebay address, so please make sure to provide us with the correct, precise, detailed shipping address at ebay. 
• Customs duty is obligation and liability of a citizen in your country, so the buyer should be responsible for any tax and custom duty incurred.
• Most of the items will be shipped by China Post / Hongkong Post / Singapore Post.
• The shipping time as the follow table is just for your reference. (Note: Brazil/Russia/Ukraine/Mexico/Argentina/Colombia/Chile will take much
  longer time than other countries, so the refund time will be up to 55 days.)

• We only accept payment via PayPal.
• Payment must be completed within 7 days.        
• Please leave messages for your special requests (e.g Color or Size.) in the paypal notes section when you place the order. 

• All the items will be tested before shipping. Buy them with the confidence!
• If the item is defected when you receive it or you are not satisfied with it, you can email us for a replacement or refund, but you have to return the item to us within 7 days.Please contract us and double check the return address before you return it.
• No accepting to return the electronic components.
• Full refund when receiving the original item. Notice: Return shipping fee is paid by the buyer.       
• We maintain the excellent service standards and strive for 100% customer satisfaction! Positive feedback is very important to us,so if you have any problem, please do feel free to contact us before leaving us any Neutral or Negative feedback, so that we can satisfactorily address your concerns.

• We strive to provide you with the best service, and we will reply your question within 24 hours. 
• Our greatest goal is to meet the maximum demands of the customers. 
• Business time: 9:30~21:30 (GMT+8)