Class T Coupling
The coupling blanks are formed or machined to size andtolerance, heat treated, thread using a cold-forming rolled thread tap andcoated for anti-galling and lubrication properties.
Designed for reciprocating lift applications, Class Tcouplings are recommended for installation where abrasion or corrosion-abrasionis not a problem.
Spray Metal Coupling (SM coupling)
The coupling blanks are formed or machined to size andtolerance, hard surfaced on the outside diameter with a 0.01 inch (0.25mm) or0.02 inch (0.51mm) thick nickel-chromium spray metal coating, threaded using acold-forming rolled thread tap and coated for anti-galling and lubricationproperties. Designed for reciprocating lift applications, SM couplings are recommendedfor installation where abrasion or corrosion-abrasion is a problem.
SR Coupling | PR Coupling | SINKER BAR | ROD GUIDE |
Grade | Type |
T/SM/HS | D,D-SM,High-strength | C/K/D | Various Types Available |
Size |
Full/Slim | 1-1/8’’, 1-1/4’’, 1-1/2’’ | All size from 1-1/4’’ to 1-3/4’’ | 2’’, 2-1/2’’, 3’’ |
Material |
40Cr(5140) | 4140 | 1045 | PA6 |
30Cr(4130) | 1045 | 4330 | PPA |
8630 | 25CrMoA (4125) | 4142 |
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