Semi-bridge Thread Coupling Sleeves

Coupling sleeve is widely used for extension rod and drill bits connection.GMD could supply Coupling, such as R25, R28, R32, R38, T38, T45, T51, R28-R32, R28-R38, R32-T38, R32-R38, R25-R32, R32-T45....

Send InquiryChat Now

GMD could provide coupling sleeves are available with both Semi-bridge Thread Coupling Sleeves and full-bridge types, as well as adapter couplings. Semi-bridge Thread Coupling Sleeves is the most popular type. Most rope and HM threaded (“T” Thread) couplings are semi-bridged.

Semi-bridge couplings are most suited to high torque machines.


Coupling Sleeves


Future of Semi-bridged Type


• Small non-threaded bridge in the center

• Steel cannot thread past bridge area

• Smaller diameter steel end portions fit together in the center bridge area of the


• Semi-bridged couplings are most suited to high-torque machines

• Most rope and HM threaded couplings are semi-bridged

• Best energy transfer


Future of Full-bridged Type  


Eliminates the potential for the coupling to creep along the threaded joints

• Typically used in surface applications

• Better uncoupling characteristics and tends to maintain tighter joints

• Less chance of jamming

• Best suited to machines equipped with independent rotation (S36IR rock drill)

Coupling Sleeves-2

Coupling Sleeves-3




The information you may like to know before order:

1. Q:Methods of Payment:

   A: T/T (Telegraphic Transfer) or Western Union or L/C at sight

2. Q: Handling time for an order

   A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

3. Q: Shipping way

   A: Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

     Bulk order: we suggest by air or by sea.

4. Q: Quality Control

   A: We have our own experienced QC.

  There will be strict inspection and testing for every order before shipping out.

5. Q: After Services:

   A: (1). Our sales team will response for your question within 24 hours (Holidays Excluded)

      (2). Technical Support will be available in any time

      (3). Free replacement will provide once the failure confirmed caused by our product quality


Key Words

Semi-bridge Thread Coupling Sleeves

Coupling Sleeves

Thread Coupling Sleeves

Full Bridge Coupling Sleeves

Semi-bridge Coupling Sleeves

Hot Tags: semi-bridge thread coupling sleeves, suppliers, manufacturers, factory, price
Related Products