AR 3720

SKU: AR 3720 Category: Stock Extension Springs Tag: K

Quantity Pricing

1 - 4	5 - 14	15 - 29	30 - 49	50 - 99	100 - 199	200 - 499	500 - 999
£4.51	£4.06	£3.16	£2.26	£1.80	£1.35	£1.13	£0.90

Metric

Imperial

Outside Dia. (mm)

Free Length (mm)

Wire Dia. (mm)

Extended Length (mm)

Initial Tension (N)

Spring Rate (N/mm)

15.9

63.5

2.34

86.819

25.459

7.642

Outside Dia. (In)

Free Length (In)

Wire Dia. (In)

Extended Length (In)

Initial Tension (Lbs)

Spring Rate (Lbs/in)

0.625

2.5

0.092

3.418

5.724

43.641

AR 3720 - Extension Spring - Outside Dia.: 15.9mm | Free Length: 63.5mm | Extended Length: 86.819mm

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Tel +44 (0) 117 967 3313
Email sales@flexosprings.com

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Flexo Springs Limited

Hill Street, Kingswood

Bristol BS15 4HB

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	Compression Springs	Extension Springs
Working Length	Its is not advisable to use more than 80% of the maximum possible deflection.	We recommend a safe extended length for our springs
End Coils	Up to 0.5mm wire - closed only. Over 0.5mm wire - closed & ground	Full loops are similar to outside diameter. Loop end positions may vary.
Tolerances	British Standard - BS 1726: Part1:Grade 2	British Standard - BS 1726: Part2:Grade 2
Materials	Carbon Steel Wire / Music Wire - British Standard BS5216, Grade ND3.
Winding	Springs are normally right wound, however this may vary.
Finish	Springs are stress relieved at appropriate temperatures, and stock springs are supplied in a plain finish, lightly oiled.

STOCK EXTENSION SPRINGS: AR 3720