S78ESY-018022125 is a helical extension spring made of 302 stainless steel with a 0.180 inch outer diameter, 0.022 inch wire diameter, and a free length of 1.25 inches. It has an initial tension of 1.7 lbf and a spring rate of 2.17 lbf/in. The spring features crossover or machine loops, supplied with open or closed loops at the manufacturer's option, and is close-wound with uniform body diameter.
Industrial fasteners are hardware devices that join two or more items together, creating a semi-permanent or permanent connection. The fasteners most frequently used by machinery designers are screws, nuts, retaining rings, and various types of pins because of the basic role that they play in the assembly of mechanisms. Various industrial hardware components are used in the assembly process including knobs, washers, spacers, shims, handles, springs, spring-powered reels, and ball plunger screws.
Fasteners play a vital role in a wide range of applications, from everyday household items to medical devices, robotics, and even outer space. Careful consideration must be given before selecting the most appropriate fastener for an application.
Download Reference Tables to help with selection:
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Extension Springs |
| Product Number | S78ESY-018022125 |
| Product Name | 0.12" (OD), 1.25" Free Length, Helical Extension Spring |
| Material | Stainless steel |
| Outer Diameter (OD) | 0.1700 inch (4.32 mm) |
| Wire Diameter | 0.0220 inch (0.5588 mm) |
| Free Length | 1.25 inch (31.75 mm) |
