O-Ring Groove Dimension Calculator
Free O-ring groove dimension calculator. Compute groove width, depth, squeeze percentage, and gland fill for static, dynamic reciprocating, and rotary O-ring applications. Inch and metric units.
Engineering Tools for Elastomer Design
Engineering reference tools for elastomer and seal design — O-ring groove calculator, chemical compatibility lookup, and Shore A / Shore D / IRHD hardness converter. No signup required.
Engineering tools
Elastomer Chemical Compatibility Lookup
Free chemical compatibility lookup for elastomers. Search 30+ industrial chemicals against NBR, HNBR, FKM (Viton), EPDM, silicone, FFKM, and PTFE. Engineering-grade A/B/C/D ratings.
Shore A / Shore D / IRHD Hardness Converter
Convert between Shore A (ASTM D2240), Shore D, and IRHD (ISO 48) elastomer hardness scales. Free engineering reference tool with full lookup table.