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Calculate O-ring tolerances

HomepageBuying O-rings - for industrial customersCalculating O-ring tolerances

A simple calculation programme for the tolerances of O-rings

In many applications, the tolerances for O-rings are very tight. The mountability and sealing function of elastomer O-rings are highly dependent on the tolerances of the inner diameter and the cord thickness. Our programme takes these two parameters into account and with just a few clicks you can find out the tolerance specifications for the inner diameter and the cord thickness for any O-ring dimension. The tolerance is calculated in accordance with DIN ISO 3601-1:2013-11 Class B.

O-ring tolerance calculation

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O-ring Tolerance calculation

O-ring measurement
Inner diameter d1
Tolerance
± 
Maximum: Nominal dimension: Minimum:
Cord thickness d2
Tolerance
± 
Maximum: Nominal dimension: Minimum:
Outer diameter of the O-ring
Maximum: Minimum:
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