O-Ring Boss Calculator

Calculate ORB port dimensions, o-ring groove sizing, and squeeze per SAE J1926

Input Parameters

Results

--
O-Ring ID
in
--
O-Ring Cross-Section
in
--
Groove Depth
in
--
O-Ring Squeeze
%
Note: Optimal squeeze is 10-25% for static seals. Use backup rings above 1500 psi. NBR standard to 250°F, FKM to 400°F.

Reference

Squeeze % = (CS - Groove Depth) / CS × 100 | Per SAE J1926 / ISO 11926