Ametek Hunter Springs – Constant torque springs
Torque spring motor is a prestressed strip of spring material which is formed into a coil and is stored on a small storage drum.
A power spring’s natural tendency to expand imparts a moment to either the arbor or case, producing usable torque.
A power spring’s natural tendency to expand imparts a moment to either the arbor or case, producing usable torque. The torque generated is cumulative so that the torque increases as the spring is wound tighter and decreases as it unwinds.
Power springs, also known as clock springs, can be assembled into a customer’s housing for immediate assembly or supplied with a retaining ring for transferring the spring to a customer’s housing.
Torque and the total number of turns are the most important output requirements in a power spring design. The performance of a power spring is defined by the dimensions of the spring material (thickness, width and length) and the space available (housing and arbor diameters).
The Material
Power springs from Hunter Spring are made from 301 High Yield Stainless Steel. Other materials including Elgiloy, Inconel, or high-carbon steel can be used upon request for custom applications.
Key Features
Custom Springs
Hunter spring does not stock power springs. Springs are designed for customer specific applications only.