API  3/4"to7/8" SUB Sucker Rod Coupling

1) The sub sucker rod couplings are used to connect two varisized sucker rod.

2) Basic Material: High quality carbon steel AISI 5140(40Cr)

3) SM Coating Material: Ni60A Alloy Coating

4) Basic Hardness: HRC 16-23

5) Surface Hardness: HRC 55-62

6) Hole rate: 2%

7) Smoothness: 3.1×10-3

8)Min. Hardness of the layer: 595HV0.2

9) Type: SM/T, Full size/ Slim Hole

10) OtherCoupling diameter: 5/8"to3/4 ",7/8"to1", 1"to1-1/8"

11)Main specification of 3/4"to7/8" sucker rod coupling

    Weight:0.92kg

    O.D.:1-13/16(46.04mm

    Length:4in(101.6mm)

Moreover, Yunsheng sucker rod couplings include T sucker rod coupling, Spray metal sucker rod coupling, full size sucker rod coupling, slim hole sucker rod coupling. And any of them are available in sizes of 5/8"to3/4 ",7/8"to1", 1"to1-1/8" and enjoyed good reputatioin from home and abroad .

 So if you are interested in any of our sucker rod couplings or have any request, please contact us freely for further information. We'll assure you of our best service all the time.
 

Yantai Yunsheng Petroleum Machine Accessories Co. Ltd., founded in 2005, is a professional manufacturer of API Spec 11B Sucker Rod Couplings, including Spray Metal coupling, class T coupling, Sub OD coupling, with various type of Full size, Slim Hole, Over Size, with Big Chamfer, with Wrench Flat, with Bidirectional Cambered Surface Protection, etc., and the thread size are available at 5/8", 3/4", 7/8", 1", 1-1/8".  Owning world top level equipments and technicians, the monthly production capacity is more than 20,000pcs.  All of our couplings are excellent in Quality and reasonable in Price, and the production & inspection are being done fully in accordance with API Spec11B standard.