Forney 72597 Wire Spring Extension (10-339), 1-1/4-Inch-by-10-Inch-by-.148-Inch,Silver,Large

Forney 72597 Wire Spring Extension (10-339), 1-1/4-Inch-by-10-Inch-by-.148-Inch,Silver,Large

Q: How far does this stretch?

Hi Shawn,I asked the seller and they didn't know as I recall? I'll take some measurements with a scale and get you some info.I'm not sure what it's limit is, length or load, but I can guess for you. I was an engineer before retiring, so the formula for springs is F(lbs) = K(lbs/in) x D (in) F= force in lbs, K= spring constant in lbs/in and D=deflection in inches. You can find either F or D once you have the spring constant K and one other variable.Length NO load=11" eye to eyeLength with 20#s 13" or 2" of stretchLength with 40#s 15" or 4" of stretchLength with 60#s 17" or 6" of stretchLength with 100#s 22" or 11" stretchThese all come out to a K factor of basically 10lbs/in of deflection.At 100#s, it seemed fine, but you're at 2X no load length. Probably a good stopping point for use.Hope that helps, JereLength with 40#s

Q: How far does the spring extend? Will it extend up to 30"?

No It won't extend up to 30". Don't buy springs on Amazon. They all look like they are what you have in mind, but the scale or the strength will be off.

Q: Does over all length include the eye in the spring?

The total length includes both eyes and is 10 inches. The length of the spring in the middle is 8 inches.

Q: What is the max extension for this unit?

Ours is extending around 4 to 5 inches, and has been used everyday for months. Very good spring.

产品编号: 9291460

安全交易

⚙️Heat treated for durability

🛠️77 lbs max load capacity

🛡️Zinc plated rust-resistant finish

经常一起购买

描述

⚡️ Spring into reliability with Forney’s powerhouse extension wire!

BUILT TO LAST - Heat treated steel ensures peak performance and longevity under pressure.
RUST NOT HERE - Baked zinc plating delivers superior corrosion resistance for any environment.
MADE IN THE USA - Crafted by Forney, a trusted family-owned brand since 1932.
READY FOR ANYTHING - Ideal for home, shop, ranch, or light industrial use—your go-to extension spring.
VERSATILE POWERHOUSE - Supports up to 77 lbs, perfect for everything from screen doors to farm equipment.

The Forney 72597 Wire Spring Extension is a large, zinc-plated steel spring measuring 1-1/4 by 10 inches with a .148-inch wire diameter. Heat treated for enhanced durability and baked for rust resistance, it supports loads up to 77 pounds. Perfect for diverse applications from household repairs to industrial use, this American-made spring combines trusted craftsmanship with versatile performance.

规格

Manufacturer	Forney
Part Number	72597
Item Weight	0.01 ounces
Product Dimensions	10 x 1.25 x 1.25 inches
Item model number	72597
Size	Large
Color	Silver
Style	Extension
Finish	Zinc Plated
Material	Steel
Item Package Quantity	1
Maximum Weight Capacity	77 Pounds
Measurement System	inch, metric
Special Features	Zinc plated steel is baked for a rust resistant finish and heat treated for performance and longevity, Made in the U.S.A.
Batteries Included?	No
Batteries Required?	No
Warranty Description	90 day warranty against manufacturer defects

有问题吗？看看别人问了什么

How far does this stretch?

How far does the spring extend? Will it extend up to 30"?

Does over all length include the eye in the spring?

What is the max extension for this unit?

R**.

Five Stars

Excellent

12.05.2016

H**Y

Five Stars

Just what we needed!! Thank you!

1.12.2014

T**.

Three Stars

Not for swings.

16.03.2017

Y**R

Five Stars

just what I was looking for fast shipping

7.02.2016

S**D

Happy with this spring

The first order went astray but Amazon replaced it (2 springs) at no cost. I used these springs on a brush cutting device I am building to go on the front of my ATV"

28.10.2018

P**T

Good

6.01.2020

D**D

Using it as a gate closer

Good strong spring.

21.04.2019