Extension Springs...

Extension springs are helical springs designed to store energy and resist a pulling force. We have a few examples of extension springs shown below. With years of experience assisting in the design and manufacture of precision springs, we are always available to help meet your challenge. Contact us today to get us on board for your next project.

Engineering Request Form - extension springs

The following form will send us your engineering information for extension springs. Please try and be as complete as possible. If you have any questions, feel free to call us at 978.658.7396

Contact Information

name:	(first and last)
company:
street address:
street address 2:
city:
state:
zipcode:
country:
phone:	(978-658-7369)
fax:
email address:

Design Information

All dimensions entered as:	standard (in / lbs) metric (mm / N)
1. outside diameter
a.	in. (mm) max. or
b.	in. (mm) max. or ± in. (mm)
2. inside diameter
a.	in. (mm) max. or
b.	in. (mm) max. or ± in. (mm)
3. loads	load lb. (N) ± lb. (N) @ in. (mm)
	load lb. (N) ± lb. (N) @ in. (mm)
	rate lb/in. (N/mm) ± lb/in. (N/mm)
	between lengths of in. (mm) and in. (mm)
4. max. extended length	(inside ends) without set in. (mm)
5. relative loop position	° max. separation of loop planes
6. direction of helix	(indicate L, R or OPT)
7. type of ends	(see illustrations below)

Advisory Data

1. length inside ends
a.	in. (mm) max. in. (mm) min.
b.	in. (mm) max. ± in. (mm)
c.	approximately in. (mm)
2. wire diameter	in. (mm)
3. mean coil diameter	in. (mm)
4. no. of active coils
5. body length	in. (mm)
6. initial tension	lbs. (N)

Special Information

1. type of material
2. finish
3. squareness (free)	within ° degrees
4. frequency of extension	cycles/sec. and working range in. (mm)
	to in. (mm) of length
5. operating temperature	° F (°C)
6. end use or application
7. other comments
	required for submission

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extension springs

Engineering Request Form

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engineering form

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