Extension
General Information Required
Typically when ordering extension springs that do not require special requirements,
The minimum information needed to quote is listed below:
- Type of material (can be discussed or described)
- Wire diameter
- Outer diameter of the spring body
- Total coils in the spring body
- Direction of wind (normally not an issue)
- Type of ends
- Free/relaxed length of spring measured either from inside or outside the hooks
- Quantity needed
Definition
Extension springs are close-coiled helical springs, with initial tension (most of the time) that extend when a pulling force is applied. They can be coiled either left or right hand wound with a variety of end styles. Initial tension is the force which keeps the coils of an extension spring against each other
Direction of Wind
End Styles
End styles vary greatly depending on application. The most common, least expensive and easiest hooks to produce would be the machine/half hook, sweep loop/hook, large/full English loop/hook or tang ends.
Machine Hooks
Sweep Hooks
English Hooks
The difference between a loop and a hook is that a loop has no gap (it’s closed) and a hook has an opening that can be used to “hook” onto an assembly
EXTENSION SPRING HOOK STYLES
EXTENSION SPRINGS
SPECIFICATION FORM
GET A QUOTE OR ORDER NOW
- COMPLETE FORM AND SEND TO ADDRESS BELOW WITH QTY’S REQUIRED
- SEND IN YOUR TECHNICAL INFORMATION/ DRAWINGS
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