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Secondary Rubber Spring for Locomotives (Side Bearer)

Technology: Transfer/Injection Moulding

Note: Design, Dimension & Properties can be changed to suit customer's requirement.

Polymer used Natural Rubber suitably blended
Operation Temperature -10ºC to 70ºC
Operational Atmosphere Heavy/Dusty/Sandy/Corrosive/Salty
Operational Humidity 0 to 100%
Metal Parts Spec Steel IS:2062-Fe 410 WA
Properties of Elastomer
Shore A Hardness 50 to 60
Ash Content 5% Maximum
Specific Gravity 1.22 Maximum
Tensile Strength 180 Kg/cm2 Minimum.
Elongation at Break 300% Minimum.
Compression Set 30% Max.
Bond Strength 700 PSI / 49.21 Kg/cm2
After Heat Ageing
Change in SH +5, -0
Change in TS ±25%
Change in EB +10%, -30%

 

Secondary Rubber Spring for Locomotives (Side Bearer) - 127

Compressive Load-Deflection Characteristics

Load Min. Defl. Max Defl.
7.5 Ton 10.8 mm 13.2 mm
11 Ton 15.3 mm 18.7 mm
16 Ton 22.5 mm 27.5 mm

Vertical Stiffness

644 Kg/mm

Shear Stiffness

39.37 Kg/mm

Compressive Load - Deflection Characteristics Graph (Min & Max)

Secondary Rubber Spring for Locomotives (Side Bearer) - 133

Compressive Load-Deflection Characteristics

Load Min. Defl. Max Defl.
7.5 Ton 9 mm 11 mm
8.5 Ton 9.9 mm 12.1 mm
11 Ton 12.6 mm 15.4 mm
12.5 Ton 14.4 mm 17.6 mm
18 Ton 20.7 mm 25.3 mm

Vertical Stiffness

778 Kg/mm at Compressive Load of 12.5 Ton

Shear Stiffness

45 Kg/cm at Shear Load of 1 Ton

Compressive Load - Deflection Characteristics Graph (Min & Max)

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