DAKPEDIA
ALL ABOUT LEAF SPRING
LEAF SPRING PRODUCTION PROCESS
-
Shearing of flat bar
-
Center hole punching
-
Drilling
-
Eye forming
-
Wrapper forming
-
Diamond cutting
-
End trimming
-
Width cutting
-
End tapering
-
End punching
-
End grooving
-
End bending
-
End forging
-
Eye grinding
-
Center hole punching
-
Center hole drilling
-
Center hole nibbing
-
Parabolic forming
-
Straightening
-
Heating
-
Chamber forming
-
Hardening
-
Quenching
-
Tempering
-
Shot peening
-
Stress peening
-
Primary painting
-
Eye reaming
-
Eye boring
-
Bush insertion
-
Bush reaming
-
Presetting
-
Load testing
-
Finish painting
-
Marking
-
Packing
LEAF SPRING TYPE
-
Elliptic leaf spring
-
Semi elliptic leaf spring
-
Three quarter elliptic leaf spring
-
Quarter elliptic leaf spring
-
Transverse leaf spring
TRADITIONAL LEAF SPRING TYPE
Double eye leaf spring
​
​​
Open eye leaf spring
​
​​
Hook end leaf spring
Flat end leaf spring
Radius end leaf spring
​
​​
Conventional leaf spring
​
​​
Eye mounted leaf spring
​
​​
Taper enden slide leaf spring
​
​​
Progressive leaf spring
​
​​
Trailer leaf spring
​
​​
PARABOLIC LEAF SPRING TYPE
High stress parabolic leaf spring
​
​​
Full parabolic leaf spring
​
​​
Tandem parabolic leaf spring
​
​​
Single trailer parabolic leaf spring
​
​​
Hockey stick parabolic leaf spring
​
​​
Walking stick parabolic leaf spring
​
​​
Z type parabolic leaf spring
​
​​
LEAF SPRING COMPONENTS
1. Spring hanger
​
2. Spring eye with bush
​
3. Spring bolts & locknuts
​
4. Spring leaves
​
5. Center bolt
6. Rebound clips
​
7. Spring bolts & locknuts
​
8. Spring shackles
​
9. Rear hanger
​
10. Camber
LEAF SPRING EYE TYPE
-
Normal eye rolling
-
Downturned berlin eye
-
Half wrapper leaf
-
Berlin eye
-
Half berlin wrapper leaf
-
Full wrapper leaf
-
Downturned normal eye
-
Quarter wrapper leaf
-
Full berlin wrapper leaf
HOW TO MEASURE LEAF SPRING
You can measure the lenght from the center line of eye following the curve of the main leaf as shown by A and B
​
You can measure the free arch as shown by C
​
You can measure the packing thickness as shown by D
​
You can measure the eye to eye free length as shown by E
​
​
HOW TO MEASURE BUSHING
A = Outside diameter
​
B = Lenght
​
C = Total lenght
​
D = Inside diameter
​
E = Leaf spring eye diameter
HOW TO MEASURE U BOLT
A = Diameter
​
​
B = Widht
​
​
C = Length
Round bend
Semi round bend
Square bend
HOW TO MEASURE WEIGHT
a(Length) x b(Widht) x h(Thickness) x Density of Iron (7,85) / 1.000.000
​
a,b and h should be in mm and the result will show you the weight in Kg