Product Description

The Two-way Globoidal sucker rod coupling is also called the Deflection-proof and Abrasion-proof Sucker Rod Coupling. This kind of sucker rod coupling is our special sucker rod coupling which is processed with some special technology .Coated a layer of abrasion-proof ,wear-proof and lessening friction coat. It can not only protect itself but also the sucker rod preventing and slowing down the wear. so that the life of the coupling and pipeline are significantly Prolonged,and the operating costs of oil reduced, oil production increased. API Two-way Globoidal Sucker Rod Coupling 1)Deflection-proof and Abrasion-proof sucker rod coupling 2)Standard: API Spec 11B 3)Basic Material: AISI 5140 (40Cr), 4)Coat Material:Ni60A Alloy Coating 5)Coat Thickness: 0.01-0.02 in 6)Basic Hardness: HRC 16-23 (HRA 58-62) 7)Surface hardness: HRC 55-62 8)Metal coating hardness: 595 HV0.2 9)Hole rate: 2% 10)Smoothness: 3.1×10-3 11)Type: Full size/Slim Hole 12)Coupling diameter: 5/8 ", 3/4", 7/8", 1", 1-1/8" 13)Li