Home  >  Metal Processing Machinery  >  Metal & Metallurgy Machinery Parts

1.AISI5140 material, 2.API spec 11 B standard, 3.Longer service life, 4.Nickle wear resisting, 5.high quality with competitiv - details see: https://www.machineto.com/sucker-rod-accessory-api-sucker-rod-sub-coupling-10159915

1)Type: FH SM coupling

2)New: Both-way Protection Globoidal Coupling Full size SM coupling with big chamfer

3)Material: High quality Carbon steel AISI 5I40

4)Coating:Spray Material Ni60A Alloy Coating

5)Basic Hardness: HRC 16-23

6)Surface Hardness: HRC 55-62

7)Hole rate: 2%

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

9)Standard: API Spec 11B

10)Coupling diameter: 5/8",3/4",7/8",1",1-1/8"

11)Weight: 0.60 KG/pcs

TYPE	SUB COUPLING
(T,SM)	SPEC(in)	O.D. +0.13(+0.005)-0.25(-0.010)(in/mm)	Length(in)	Outer Size(in) O.D.*Length	Weight(kg)
full size	5/8"*3/4"	1 5/8(41.28)	4.500	1.625×4.500	0.76
	3/4"*7/8"	1 13/16(46.04)	4.500	1.812×4.500	0.92
	7/8"*1"	2 3/16(55.56)	4.500	2.187×4.500	1.43
	1"*1-1/8"	2 3/8(60.33)	5.000	2.375×5.000	1.62
slim hole	5/8"*3/4"	1-1/2(38.1)	4.500	1.500×4.500	0.45
	3/4"*7/8"	1-5/8(41.3)	4.500	1.625×4.500	0.61
	7/8"*1"	2(50.8)	4.500	2.000×4.500	1.10
	1"*1-1/8"	2-1/8(55.6)	5.000	2.187×5.000	1.31