Die Springs

Guide Line - Spring selection and operating condition



Spring Compression Table


Series

Load

Colour

Long Life

Medium Life

Average Life

Equivalent Standard

  Die Spring (Equivalent to ISO 10243)

SLG

Lightest Load

Pista

30%

40%

50%

ISO 10243

SGR

Light Load

Green

25%

30%

40%

ISO 10243

SBL

Medium Load

Blue

25%

30%

37.5%

ISO 10243

SRE

Heavy Load

Red

20%

25%

30%

ISO 10243

SYE

Extra Heavy Load

Yellow

17%

20%

25%

ISO 10243

SUL

Ulra Load

Silver

10%

12%

15%

ISO 10243

  Die Spring (Equivalent to JIS B 5012)

SSF

Lightest Load

Yellow

40%

45%

50%

JSB B 5012

SSl

Light Load

Sky Blue

32%

36%

40%

JSB B 5012

SSM

Medium Load

RED

25.6%

28.8%

32%

JSB B 5012

SSH

Heavy Load

Dark Green

19.2%

21.6%

24%

JSB B 5012

SSB

Extra Heavy Load

Brown

16%

18%

20%

JSB B 5012

SSR

High Compression

Ivory

45%

50%

60%

JSB B 5012

STD

High Compression

Violet

45%

50%

60%

JSB B 5012


Spring Geometry



Specifications


Sr. No.

Description

Terminology

Units

1.

Hole Diameter

Dh

mm

2.

Rod Diameter

Dd

mm

3.

Outside Diameter

Do

mm

4.

Inside Diameter

Di

mm

5.

Free Length

Lo

mm

6.

Spring Rate
(Load reuired for 1mm compression)

C

kg / mm


Sr. No.

Specification

Tolerance

1.

Spring Load

+ / - 10 %

2.

Maximum Length

+ / - 1 %    + / - 0.75mm at least.

3.

Squareness

0.03 x Lo    + / - 0.05 Lo Max


Spring Compression Table in % of Length (Lo)

Series

Colour

Comp.% Lo

Die Spring ( Equivalent to ISO 10423 )

SGL

Pista

40.0

SGR

Green

30.0

SBL

Blue

30.0

SRE

Red

25.0

SYE

Yellow

20.0

SUL

Silver

12.0

Die Spring ( Equivalent to JIS 5012 )

SSF

Yellow

45.0

SSL

Sky Blue

36.0

SSM

Red

28.8

SSH

Dark Green

21.6

SSH

Brown

18.0



Die Spring Equivalent to ISO - 10243



Die Spring Equivalent to ISO - 10243







Die Spring with Round wire




Die Spring Equivalent to JIS 5012