100 ea 390compression springs 0.177"OD, 0.59"FL 15x4.5mm Yuhan spring, US $11.00 – Picture 0

100 ea 390compression springs 0.177"OD, 0.59"FL 15x4.5mm Yuhan spring, US $11.00 – Picture 1

100 ea 390compression springs 0.177"OD, 0.59"FL 15x4.5mm Yuhan spring, US $11.00 – Picture 2

100 ea 390compression springs 0.177"OD, 0.59"FL 15x4.5mm Yuhan spring, US $11.00 – Picture 3

100 Ea 390compression Springs 0.177"od, 0.59"fl 15x4.5mm Yuhan Spring

US $11.00

Siheung-si, Gyeonggi-do, Korea, South
Jan 29th

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WE SPENT 30 YEARS WITH SPRINGS. * If you have purchased various kinds of springs ,the shipping costs can be reduced. * If you want to receive the product quickly, please contact us * Welcome small quantity, Welcome a variety of questions about the springs * Quantity : 100 * O.D. : 4.5 mm / 0.177 in *Wire Diameter : 0.5 mm / 0.019 in *Free Length : 15 mm / 0.59 in *Material : SUS304-WPB Distinguishing Features: Both ends are closed but are NOT ground square. for spring load Spring force is dependent on the distance it is displaced (compressed or extended). Calculating the load Compression springs - To find the load at any working length, when free length and rate are given, use the formula: P = R x F where P is the load in lbs; R is the rate in lbs per inch; F is the deflection from free length. Example: Given a free length of .750" and a rate of 22 pounds per inch, find the load at .500" working length. P = 22 x (.750-.500) = 22 x .250 = 5.5lbs Extension springs - To find the load at any working length, when the free length, rate and initial tension are given, use the formula: P = (R x F) + I.T. where P is the load in lbs; R is the rate in lbs per inch; F is the deflection from free length; I.T. is the initial tension. Example: Given a free length of 1", a rate of 6.9 pounds per inch, and .7 pounds initial tension, find the load at 1.500". P = [6.9 x (1.500-1.000)] + .7 = (6.9 x .500) + .7 = 3.45 + .7 = 4.15 lbs Determining rate How to determine rate - Rate, which is the change in load per unit deflection, may be tested by the following procedure: 1. Deflect spring to approximately 20 percent of total available deflection (free length, minus solid height) and measure load (P1) and spring length (L1). 2. Deflect spring not more than 80 percent of total available deflection and measure load (P2) and spring length (L2). Be certain that no coils (other than closed ends) are touching at L2. 3. Calculate rate (R) lb. per in. R = (P2 - P1) / (L1 - L2) Please know that springs purchased from us will be shipped direct from manufacturer. If you have any questions concerning this or other items please don't hesitate to email me for an answer We will do our best to email you a reply ***************************************************************************** We check and inspect all styles and materials before we offer them. We always try our best to fullfill both quality and style. Be the fashionable one with our item! We carefully pack and ship all your orders after double check. We ship not just goods but also serve the best service to satisfy our customers. *** Shipping The shipping time and rate vary by destination country. The estimated delivery time is as below. However the shipping may take longer than usual due to the customs of your country. Express shipping is available with additional charge. It usually takes 11 to 23 days to delivery

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	YUHAN
Country of Manufacture	Korea, Republic of