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Calculation of the permissible load of rubber-metal buffers

Technical information on rubber-metal buffers and rubber-metal rails according to DIN ISO 3302-1 in standard quality: NK (natural rubber)

Determination of the spring travel fmax according to the load type

Determination of the spring travel fmax according to the load type

Load as end stop (impact load) - permanent (max.): fmax = H × 0,50
Load as end stop (impact load) - rare (max.): fmax = H × 0,60
Continuous load - static (max.): fmax = H × 0,15
Vibration damping: fmax = H × 0,05 bis 0,10 × H

Diameter expansion

Diameter expansion:
f = 0,50 × H / D1 = 1,40 × D

Impact surface

Impact surface:
D2 > 1,25 × D

Impact direction

Impact direction:
αmax ± 4°

Round buffer

Please enter the values for diameter and rubber height of your round buffer in the following fields to have the form factor k calculated

Form factor k

Read the value for the modulus of elasticity (Ec) as a function of the form factor k from the diagram in the upper right corner.

 

Result Fzul

Rectangular buffer/rail

Please enter the values for rubber height, width and length of your rectangular buffer/rail in the following fields to have the form factor k calculated.

Form factor k

Read the value for the modulus of elasticity (Ec) as a function of the form factor k from the diagram in the upper right corner.

 

Result Fzul

Ec depending on k

Please read off the value for the modulus of elasticity Ec from the following diagram after the form factor k has been calculated (see left).

 
Elastizitätsmodul in Abhängigkeit vom Formfaktor k

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